Standing at Tha Tien Pier on the eastern bank of the Chao Phraya River and looking across the water toward Bangkok Yai District, visitors see a colossal ivory-white spire rising steeply against the sky, flanked at its four corners by four satellite towers like lesser peaks circling the axis of the universe. Once the ferry docks on the western shore and one walks up to the base of the monument, that pale silhouette resolves into millions of fragments of polychrome Chinese porcelain dishes, seashells, and mirrored glass cut and set by hand into petals and leaves that shimmer under the tropical sun.
Vietnamese travellers know this sanctuary as Chùa Bình Minh (the Temple of Dawn), Thais call it simply Wat Arun, and its full ceremonial title is Wat Arun Ratchawararam Ratchaworamahawihan. Because the monument stands on the western bank of the river facing east, its porcelain skin catches the earliest rays of the rising sun across the water at daybreak while casting a dramatic silhouette against the western sky at sunset. Ranked among the six highest-grade first-class royal monasteries (Ratchaworamahawihan) of Thai Theravāda Buddhism, it served as the royal palace chapel of the Thonburi Kingdom under King Taksin and housed the Emerald Buddha for five years before Wat Phra Kaew was completed on the opposite bank.
IThree historical names and the symbol of cosmic Mount Meru
The historical evolution of the monastery is preserved in the three successive names it has borne across three eras. During the Ayutthaya Kingdom, the old riverside village temple was known as Wat Makok (Monastery of the Hog Plum, named after the subdistrict of Bang Makok), and later specified as Wat Makok Nok (Outer Hog Plum Monastery) after a second monastery, Wat Makok Nai, was built further up the canal. In late 1768, after expelling the Burmese occupation force and liberating the ruined capital of Ayutthaya, King Taksin the Great led his royal naval flotilla down the Chao Phraya River to establish a new capital at Thonburi. Arriving before the landing of Wat Makok just as daybreak lit the sky, the king took the dawn arrival as an auspicious omen, ordered the monastery restored, and renamed it Wat Chaeng, meaning the Temple of the Dawn or the Temple of Morning Light.
Under the Chakri Dynasty, King Rama II (Phutthaloetla Naphalai) undertook a comprehensive reconstruction of the monastery and bestowed the Sanskrit-derived royal title Wat Arun Ratchatharam, honouring Aruṇa, the Hindu deity of the dawn who serves as charioteer to the sun god Sūrya. During the reign of King Rama IV (Mongkut), the title was expanded to its present ceremonial form, Wat Arun Ratchawararam Ratchaworamahawihan.
The architectural centerpiece of Wat Arun is its quincunx of five towers built in the prang form (the slender, corn-cob-shaped spire derived from Khmer Angkorian temple towers and refined by Siamese master builders into a steeper, more graceful silhouette). The five-tower ensemble functions as a three-dimensional diagram of Theravāda Buddhist cosmology as expounded in the 14th-century treatise Traiphum Phra Ruang (Three Worlds According to King Ruang). The towering central spire (Phra Prang) represents Mount Meru (Sumeru), the axial mountain at the center of the cosmos crowned by the Tāvatiṃsa Heaven. The four smaller corner towers (Prang Noi) represent the four island continents and surrounding mountain rings, while the Chao Phraya River flowing past the terrace represents the cosmic ocean (Sīdantara).
Rising up the four stepped terraces of the central spire, stucco sculptures depict the hierarchy of cosmic beings: at the lowest level stand tree spirits and half-human, half-bird Kinnarī. the second tier is supported on the raised arms of demon guardians (Yakṣa). the third tier is carried by sacred monkeys (Vānara) from the Ramakien epic. and the fourth tier is upheld by celestial deities (Deva) and Brahmās. In the directional niches of the corner towers ride the wind god Phra Phai on a white steed, while the four axial niches of the main tower show the god Indra (Phra In) seated upon his three-headed white elephant Erawan (Airāvata). Crowning the summit of the central spire is a seven-pronged metal trident called the Crown of Indra (or the thunderbolt Vajra), topped by a golden royal crown added under King Rama IV.
Regarding the height of the central Phra Prang, authoritative sources record two different sets of figures depending on the survey datum, and the library presents both for transparent verification. The original Ayutthaya-era brick prang stood approximately 16 meters high. After the grand 19th-century enlargement initiated by King Rama II and completed by King Rama III, a 1967 architectural survey by the Fine Arts Department of Thailand measured the spire at 66.8 meters (frequently cited as 67 meters or rounded to 70 meters in reference works such as Encyclopædia Britannica). At the same time, official temple literature, the Tourism Authority of Thailand, and architectural guides measuring from the lowest plinth level to the tip of the metal finial cite heights between 81.85 meters and 86 meters. By either measurement, the Phra Prang of Wat Arun remains the tallest and grandest prang tower in Thailand.
First-time visitors seeing the corn-cob silhouette of the prang and statues of Indra on the three-headed elephant Erawan sometimes assume Wat Arun was originally a Khmer Hindu temple later converted to Buddhism. In fact, Wat Arun has been a Theravāda Buddhist monastery since its Ayutthaya beginnings. In Siamese Buddhist art and cosmology, Hindu deities such as Indra and Aruṇa are incorporated as benevolent celestial guardians (Lokapāla and Deva) who protect the Buddha's dispensation rather than serving as objects of supreme worship.
IIFrom the royal chapel of Thonburi to the porcelain spire of Rattanakosin
Throughout the fifteen-year Thonburi Kingdom (1767 to 1782), Wat Arun (then known as Wat Chaeng) occupied the highest ritual status in Siam. When King Taksin built the Thonburi Royal Palace (Phra Ratchawang Doem) on the west bank of the Chao Phraya River just south of the monastery, he expanded the palace enclosure walls to encompass the entire temple precinct. Following the custom of Wat Phra Si Sanphet in Ayutthaya, Wat Chaeng served during those years as an inner palace chapel without resident monks.
- Ayutthaya periodThe old riverside temple of Wat MakokEstablished on the west bank of the Chao Phraya River in Bang Makok village, featuring a 16-meter brick prang and two small halls (Viharn Noi and Bot Noi) that still survive today.
- 1768King Taksin renames the monastery Wat ChaengArriving by boat at dawn, King Taksin restores the temple, renames it Wat Chaeng, and incorporates it into the compound of the newly built Thonburi Royal Palace.
- 1779 to 1784Sanctuary of the Emerald BuddhaAfter General Chao Phraya Chakri brings the Emerald Buddha and the Phra Bang image from Vientiane to Thonburi in 1779, King Taksin enshrines the Emerald Buddha in a pavilion beside Wat Chaeng for five years until its transfer to Wat Phra Kaew on March 22, 1784.
- 1782Re-establishment of the resident monastic communityWhen King Rama I transfers the capital across the river to Bangkok and reduces the perimeter of the old Thonburi palace, Wat Chaeng is separated from the palace grounds and welcomes resident monks back into the monastery.
- Reign of Rama II (1809 to 1824)New ordination hall and plans for the great prangKing Rama II rebuilds the ordination hall (Phra Ubosot), personally models the face of the presiding Buddha statue, and draws up plans to raise the central prang, though only the foundation excavation is completed before his passing in 1824.
- 1842 to 1851King Rama III completes the monumental Phra PrangFulfilling his father's design, King Rama III directs a nine-year construction campaign (1842 to 1851) that raises the central Phra Prang to its full height and encrusts the five towers in polychrome porcelain mosaic.
- Reigns of Rama IV and Rama VEnshrinement of Rama II's ashes and post-fire restorationKing Rama IV places a portion of King Rama II's royal ashes beneath the principal Buddha image and confers the temple's full name. After an 1895 fire damages the roof of the ordination hall, King Rama V carries out a complete restoration of the Phra Ubosot.
A vivid chapter of maritime history lies behind the porcelain mosaic surface created under King Rama III. During the first half of the 19th century, junk trade between Siam and southern China flourished at its peak. Chinese merchant vessels sailing into Bangkok carried tons of blue-and-white and polychrome porcelain bowls, plates, and jars as ship ballast to stabilize their hulls at sea. Damaged batches of crockery unloaded at the port of Bangkok were collected alongside intact glazed tiles ordered specifically for the royal project, and King Rama III also invited the public to donate broken porcelain tableware. Master craftsmen chipped the ceramics and seashells into hundreds of thousands of tesserae, setting them into wet lime mortar to form countless chrysanthemum blossoms, peonies, and scrolling foliage across all five towers.
IIIThe porcelain Phra Prang, the ordination hall, and the Yaksha guardians
The riverfront compound of Wat Arun is organized into two principal precincts along a north-to-south axis: the southern precinct dominated by the five-tower Phra Prang terrace and the two surviving Ayutthaya-period chapels, and the northern precinct comprising the main ordination hall (Phra Ubosot) enclosed by a rectangular cloister gallery and fronted by its distinctive crowned gateway.
Rising from a square stepped platform measuring 234 meters in circumference around the base, the central tower soars approximately 81.85 meters (or 66.8 meters in the 1967 survey), with four steep axial staircases ascending through three encircling terrace levels. At the four corners stand smaller prang towers enshrining the wind god Phra Phai on a white horse, while four axial pavilions (Mondop) between them house Buddha images illustrating the four cardinal events of the Buddha's life: birth, awakening, first sermon, and Parinirvāṇa.
Situated north of the great prang, the ordination hall was initiated by King Rama II and restored by King Rama V after the fire of 1895. Surrounding its stone courtyard is a covered rectangular cloister (Phra Rabiang) housing 120 gilded stucco Buddha images seated in the earth-touching posture (bhūmisparśa mudrā), fronted by carved Chinese green-stone warrior statues and stone lions originally brought as ship ballast.
Enshrined on an ornate tiered altar inside the ordination hall in the posture of Subduing Māra. According to royal tradition, King Rama II personally sculpted the clay mould for the statue's face, giving it its serene and noble expression. Beneath the marble pedestal rest the royal ashes of King Rama II.
Before the eastern entrance to the ordination hall cloister stands a graceful porch pavilion topped by a pointed crown spire (Mondop Yot Mongkut). Flanking this eastern gate are two famous six-meter porcelain-clad demon guardians (Yaksha) erected in 1831: on the north (right) stands the white-bodied Sahatsadecha, and on the south (left) stands the green-bodied demon king Thotsakan (Rāvaṇa), known proverbially across Thailand as the Giants of Wat Chaeng (Yaksa Wat Chaeng).
Standing directly in front of the main prang are two low, curve-based brick halls surviving from the original Wat Makok monastery of the Ayutthaya period. The southern hall (Viharn Noi) houses the Chulamanee Buddha image as well as a massive solid teakwood meditation platform used by King Taksin.
| Feature | Dimensions and date | Verification notes |
|---|---|---|
| Central Phra Prang | 66.8 m to 81.85 m high, 234 m base circumference | Begun under Rama II, completed in 1851 under Rama III, clad in porcelain mosaic and seashells |
| Cloister Buddha images | 120 statues | Gilded seated Buddha images in the earth-touching posture lining the four Phra Rabiang galleries |
| Yaksha gate guardians | 2 figures, approx. 6 meters high | Thotsakan (green) and Sahatsadecha (white) guarding the eastern gate of the ordination hall, built in 1831 |
| Bot Noi and Viharn Noi chapels | Ayutthaya period (17th to 18th century) | The two oldest surviving halls retaining their pre-Rattanakosin architectural core |
IVThe lie of the land and the facing
Theravāda Buddhism does not rely on East Asian feng shui, and Wat Arun was laid out according to Buddhist cosmological geometry (Mount Meru and the four continents) adapted to the riverine geography of Thonburi and Bangkok. The observations below provide a comparative reading through the library's traditional Sino-Vietnamese landform geomancy so readers familiar with that discipline can appreciate the interplay of water and orientation at the site.
In terms of coordinates and compass orientation, Wat Arun stands at 13.7437 degrees North latitude and 100.4889 degrees East longitude on the western bank of the Chao Phraya River, immediately south of the mouth of the Khlong Bangkok Yai canal (which formed the main channel of the Chao Phraya River prior to the 16th-century canal shortcut). The central Phra Prang, the crowned eastern gateway, and the Phra Ubosot all face East-Northeast, resting their backs against the Thonburi landmass to the west-southwest while looking directly out across the broad reach of the Chao Phraya River. With this unobstructed sitting West, facing East posture over open water, the rising morning sun shines straight across Rattanakosin Island onto the porcelain facade of the spire and reflects off the river surface, fulfilling its name as the Temple of Dawn.
Regarding water configuration and the confluence mouth, Wat Arun occupies the strategic river junction where the deep Khlong Bangkok Yai canal flows from the west to join the main north-to-south channel of the Chao Phraya River just off the temple's northeastern corner. In classical water geomancy, a confluence where a tributary meets a trunk river is termed a meeting of water mouths (thủy khẩu giao nha), a locus where water qi converges powerfully. Erecting an 80-meter spire right beside this river confluence acts in traditional geomantic terms as a water-mouth pagoda (thủy khẩu tháp) that locks in the incoming northern water qi and anchors the land energy of old Thonburi.
As for cross-river axial correspondence, looking across the Chao Phraya River from Wat Arun's terrace reveals the Grand Palace and Wat Phra Kaew to the northeast and Wat Pho directly opposite on the eastern bank. The four 42-meter glazed chedis of Wat Pho on the east bank and the towering porcelain prang of Wat Arun on the west bank stand in mutual visual dialogue across the river, framing the central royal reach of the Chao Phraya into a balanced and majestic water bright hall (minh đường thủy).
VThe Royal Kathin barge ceremony and Buddhist holy days
As a premier first-class royal monastery with an active resident Sangha, Wat Arun observes the full cycle of Theravāda holy days on the Thai lunar calendar. Its most celebrated annual event is the Royal Kathin Ceremony (Phra Ratchaphithi Thot Phra Kathin): in auspicious years when a full Royal Barge Procession is staged, a fleet of 52 gilded, intricately carved ceremonial barges rowed by over two thousand oarsmen in traditional scarlet uniforms glides down the Chao Phraya River to dock at Wat Arun so the monarch can present Kathina robes to the resident monks.
| Date | Calendar system | Observance | Rites at Wat Arun |
|---|---|---|---|
| Within one month after the full moon of the 11th lunar month | Thai lunar calendar (usually late October or November) | Royal Kathin Ceremony (Phra Ratchaphithi Thot Phra Kathin) | The King of Thailand or his royal representative travels across the Chao Phraya River (on state occasions by the grand Royal Barge Procession) to present post-retreat Kathina monastic robes to the monks of Wat Arun. |
| Full moon of the 3rd, 6th, and 8th lunar months | Thai lunar calendar (usually February, May, and July) | Makha Bucha, Visakha Bucha, and Asanha Bucha | Monks and lay devotees gather for chanting and sermons in the Phra Ubosot, followed at dusk by the three-circuit candlelight circumambulation (Wian Tian) around the ordination hall and the base of the Phra Prang. |
| December 28 annually | Solar calendar | King Taksin the Great Memorial Day | Worshippers from Thonburi and Bangkok gather at the old Viharn Noi chapel beside the main prang to offer garlands and pay homage before the shrine and meditation platform of King Taksin, who restored the monastery in 1768. |
| April 13 to 15 and December 31 | Solar calendar | Songkran Traditional New Year and New Year's Eve Chanting (Suat Mon Kham Pi) | Songkran features the bathing of Buddha images and building of sand stupas along the riverfront, while New Year's Eve brings overnight paritta chanting and festive illumination of the great prang. |
Every evening after sunset, architectural floodlights illuminate the stepped tiers of the Phra Prang, turning the white porcelain tower into a golden beacon reflected across the waters of the Chao Phraya River.
VILocation And How To Get There
- Address
- 158 Thanon Wang Doem, Wat Arun, Bangkok Yai, Bangkok 10600 (158 ถนนวังเดิม แขวงวัดอรุณ เขตบางกอกใหญ่ กรุงเทพมหานคร)
- Getting there
- The monastery stands at 158 Thanon Wang Doem, Bangkok Yai District, on the west bank of the Chao Phraya River. The most scenic route is to take the MRT Blue Line to Sanam Chai Station or a river boat to Tha Tien Pier (N8) beside Wat Pho on the east bank, and then board the cross-river ferry (a 3-to-4-minute crossing) directly to Wat Arun Pier. alternatively, visitors can take the MRT Blue Line to Itsaraphap Station on the Thonburi side and walk 10 minutes to the rear entrance.
- Coordinates
- 13.7437, 100.4889
Wat Arun is an active monastery where monks live and study, so visitors must dress modestly with shoulders and knees covered (sleeved shirts and long trousers or long skirts). Shoes and hats must be removed before stepping inside the main ordination hall (Phra Ubosot) and the old Viharn Noi chapel. At the central Phra Prang, to preserve the historic masonry and ensure visitor safety on the extremely steep steps, access is currently permitted up to the first lower terrace gallery encircling the base rather than to the upper tiers.
Nearby places in the library
VIIContribute To This Page
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?Quick Questions
Why is Wat Arun called the Temple of Dawn when so many people photograph it at sunset
The name Wat Arun honours the dawn deity Aruṇa and commemorates King Taksin's arrival at the riverside landing just as daybreak lit the sky in 1768 (when he renamed it Wat Chaeng, Temple of Morning Light). Because the temple sits on the western bank facing east, the morning sun shines directly onto the porcelain mosaics of the spire at dawn, whereas at sunset the sun drops behind the tower, silhouetting the monument against the evening sky for viewers looking across from the eastern bank.
How tall is the central Phra Prang of Wat Arun
Historical and architectural sources record two different measurements depending on the reference points used: a 1967 survey by the Fine Arts Department of Thailand and Encyclopædia Britannica cite a height of 66.8 meters to 70 meters, whereas temple publications and Tourism Authority of Thailand specifications measuring from the lowest base plinth to the tip of the metal trident finial cite 81.85 meters (or 82 meters). By either figure, it is the tallest prang in Thailand.
Where did the porcelain fragments covering Wat Arun come from
When King Rama III raised the great prang between 1842 and 1851, in addition to custom-made glazed tiles, artisans made extensive use of Chinese porcelain bowls, plates, and jars that had been carried as ballast in the hulls of merchant junks trading between China and Bangkok, supplemented by broken crockery donated by townspeople. Craftsmen chipped the ceramics and seashells into small pieces to form thousands of floral mosaics.
What is the historical connection between Wat Arun and the Emerald Buddha
Before Wat Phra Kaew was built on the eastern bank of the river, General Chao Phraya Chakri (later King Rama I) brought the Emerald Buddha from Vientiane to the capital of Thonburi in 1779. King Taksin enshrined the Emerald Buddha inside a royal pavilion within the precinct of Wat Arun (then called Wat Chaeng) for five years, until it was carried across the Chao Phraya River to Wat Phra Kaew on March 22, 1784.
Who are the two giant guardian statues in front of the ordination hall at Wat Arun
They are two six-meter porcelain-clad demon guardians (Yaksha) sculpted in 1831 under King Rama III to guard the crowned eastern gateway leading to the Phra Ubosot. The white-skinned figure on the right (north) is Sahatsadecha, and the green-skinned figure on the left (south) is the demon king Thotsakan (Rāvaṇa from the Ramakien epic), famously known in Thai folklore as the Giants of Wat Chaeng.