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Wat Si Roi

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Ang Thong Reviewed Jul 2026
Daily 08:00-17:00
Entry Free

Wat Si Roi is a riverside temple on the Noi River in Wiset Chai Chan district, Ang Thong, founded in 1771 in memory of around 400 soldiers who died defending the area against Burmese forces. Entry is free, and it’s open daily from 08:00 to 17:00.

The temple’s name — Si Roi means “four hundred” — refers to that group of local defenders, remembered alongside Khun Rong Palat Chu, a senior officer of the old district administration. It was granted formal royal recognition (wisungkhamsima) in 1909, more than a century after its founding, and has functioned since as an active village monastery serving the rice-farming communities along the river.

The centrepiece is a 21-metre seated Buddha image in the Pa Lelai posture — depicted accepting offerings from an elephant and a monkey — with a lap span of just over 6 metres. Known formally as Luang Pho To, the statue is more widely called Luang Pho Rong Hai, “the Crying Buddha,” after a 1987 report of what appeared to be blood running from its nostrils. News of the event drew crowds from across Ang Thong and neighbouring provinces at the time, and the nickname has stuck ever since, even as the temple has settled back into a quieter working rhythm.

Insider Tip: Go on a weekday morning if you want the temple grounds to yourself — weekends bring coach groups making the short detour from Wat Muang, a few kilometres away in the same district.

Watch out: There’s little shade around the main Buddha image itself; the surrounding sala and trees offer the only relief from the sun in the middle of the day.

Wiset Chai Chan district holds several of Ang Thong’s biggest Buddha statues within a short drive of each other — Wat Muang, home to Thailand’s tallest seated Buddha, is the natural pairing with a visit here.

Key Facts:
  • Entry fee: Free
  • Hours: Daily 08:00-17:00
  • Main Buddha: 21 m tall, Pa Lelai posture, known as Luang Pho Rong Hai
  • Founded: 1771, in memory of about 400 soldiers of Wiset Chai Chan
  • Nearby: Wat Muang, a few kilometres away in the same district

Getting There

Wat Si Roi is located at Mu 4 Wiset-Phak Hai Road. View on Google Maps.

Tips for Visitors

  • Remove your shoes before entering any building.

  • Keep your voice low and your head below any Buddha images when seated.

  • Avoid pointing your feet at Buddha images or monks.

  • Visit early morning to see monks collecting alms.

Good to Know

Good for

ChildrenFriendStudentForeign Tourist

Things to do

Learn the HistoryWorship the Religious PlaceFirst TeachersPraying

On site

Parking

Location & Directions

Mu 4 Wiset-Phak Hai Road

Ang Thong, Thailand

Get directions

Show your taxi or Grab driver

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Frequently Asked Questions

Why is it called Wat Si Roi ("Temple of the Four Hundred")?
The name commemorates around 400 soldiers from Wiset Chai Chan who died defending the area against Burmese forces; the temple was built on the Noi River in their memory in 1771.
Why is the main Buddha called "Luang Pho Rong Hai" (the Crying Buddha)?
In 1987, what looked like blood was reported running from the statue's nose, and word spread through Ang Thong and neighbouring provinces. The name Luang Pho Rong Hai stuck alongside its formal name, Luang Pho To.
How big is the Buddha image?
21 metres tall with a lap width of just over 6 metres, seated in the Pa Lelai posture — accepting offerings from an elephant and a monkey.
Is there an entry fee?
No, entry is free, and the temple is open daily 08:00-17:00.
Is Wat Si Roi easy to combine with other Ang Thong temples?
Yes — it's in the same Wiset Chai Chan district as [Wat Muang](/attraction/wat-muang/), home to Thailand's tallest seated Buddha, so the two are commonly visited together.
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