Wat Yai Chai Mongkhon

Temple Historic Ayutthaya temple with large chedi and Buddha images

Outside Ayutthaya’s old city, Wat Yai Chai Mongkhon is known for its large chedi, rows of Buddha statues and a reclining Buddha; visitors combine temple visits with cycling and history tours.

Main image

Wat Yai Chai Mongkhon is a major Buddhist temple complex on the southern edge of Ayutthaya Historical Park in central Thailand, noted for its prominent chedi and monastic buildings. The temple dates to the Ayutthaya Kingdom and is a frequently visited religious and historic site in the city of Ayutthaya.

The site is dominated by a large, tapering chedi visible from the surrounding plain and a viharn that houses a large reclining Buddha image. Rows of seated Buddha statues line walkways and cloisters; many images have been restored and are regularly dressed in saffron cloth.

Original construction and later enlargements took place during the Ayutthaya period; the complex has undergone restorations after periods of damage as part of the broader conservation of Ayutthaya’s historic monuments. Today it functions as both an active temple and a cultural-historical attraction.

The temple sits just outside the old city island of Ayutthaya, within easy driving distance of the main historical sites and the modern town center.

What to See #

  • Central Chedi: The large brick and stucco chedi dominates the temple precinct and is the most visible landmark; it dates to the Ayutthaya period and was enlarged in later restorations.
  • Viharn and Buddha images: The viharn and cloister contain a large reclining Buddha and rows of seated Buddha images, many draped in saffron cloth and restored in modern conservation efforts.
Wat Yai Chai Mongkhon
Wat Yai Chai Mongkhon, Ayutthaya, Phra Nakhon Si Ayutthaya province, Thailand
14.3458, 100.5922
Daily 8am-5pm
Free (donations accepted)

How to Get to Wat Yai Chai Mongkhon #

Wat Yai Chai Mongkhon is about 6 km southeast of Ayutthaya Historical Park; it is accessible by tuk-tuk, bicycle or a short taxi ride from Ayutthaya town centre.

Tips for Visiting Wat Yai Chai Mongkhon #

  • Arrive before 9am to avoid coach crowds; the temple is busiest around midday and on weekends.
  • Photograph the reclining Buddha's face from the left side for the most flattering light.
  • Combine a visit with nearby Ayutthaya attractions-Wihan Phra Mongkhon Bophit and Wat Phra Si Sanphet are a short tuk-tuk ride away.

Best Time to Visit Wat Yai Chai Mongkhon #

November to February offers mild temperatures and the best overall conditions for sightseeing.

Cool season
November-February · 20-30°C (68-86°F)
Comfortable temperatures and clearer skies; busiest tourist season.
Hot season
March-May · 28-38°C (82-100°F)
Very hot days; early starts recommended.
Rainy season
June-October · 24-32°C (75-90°F)
Intermittent heavy showers but fewer tourists.

Weather & Climate near Wat Yai Chai Mongkhon #

Climate

Wat Yai Chai Mongkhon's climate is classified as Tropical Savanna - Tropical Savanna climate with very hot summers (peaking in April) and hot winters (coldest in December). Temperatures range from 20°C to 36°C. Abundant rainfall (1034 mm/year), wettest in September with a pronounced dry season.

Best Time to Visit
JanuaryDecemberFebruary
Temperature & Rainfall
Temperature Range
44°
Warmest Month
10°
Coldest Month
Monthly Conditions

January

January is warm with highs of 32°C and lows of 20°C. Almost no rain and mostly sunny skies.

95 Ideal

Comfort

26°
Feels Like Warm
26°C
Temperature
20° 32°
60%
Humidity
Humid

Weather

5 mm
Rainfall
0.9 m/s
Wind
Calm
1.6
UV Index
Very High
11.3h daylight

February

February is hot, feeling like 29°C. Almost no rain and mostly sunny skies.

87 Excellent

Comfort

29°
Feels Like Hot
28°C
Temperature
22° 34°
57%
Humidity
Humid

Weather

9 mm
Rainfall
1.2 m/s
Wind
Calm
1.8
UV Index
Very High
11.6h daylight

March

March is hot, feeling like 31°C. Light rainfall.

83 Excellent

Comfort

31°
Feels Like Hot
29°C
Temperature
23° 35°
58%
Humidity
Humid

Weather

25 mm
Rainfall
1.4 m/s
Wind
Calm
2.0
UV Index
Very High
11.9h daylight

April

April is the hottest month, feeling like 34°C. Moderate rainfall (61 mm) and partly cloudy skies.

73 Very Good

Comfort

34°
Feels Like Hot
30°C
Temperature
25° 36°
62%
Humidity
Humid

Weather

61 mm
Rainfall
1.0 m/s
Wind
Calm
2.2
UV Index
Extreme
12.3h daylight

May

May is hot, feeling like 35°C due to high humidity. Significant rainfall (131 mm) and mostly overcast skies.

59 Acceptable

Comfort

35°
Feels Like Hot
30°C
Temperature
25° 35°
73%
Humidity
Very Humid

Weather

131 mm
Rainfall
1.0 m/s
Wind
Calm
2.2
UV Index
Extreme
12.7h daylight

June

June is hot, feeling like 35°C due to high humidity. Significant rainfall (110 mm) and mostly overcast skies.

59 Acceptable

Comfort

35°
Feels Like Hot
29°C
Temperature
25° 34°
79%
Humidity
Very Humid

Weather

110 mm
Rainfall
1.1 m/s
Wind
Calm
2.1
UV Index
Extreme
12.8h daylight

July

July is hot, feeling like 34°C due to high humidity. Significant rainfall (104 mm) and mostly overcast skies.

59 Acceptable

Comfort

34°
Feels Like Hot
29°C
Temperature
25° 33°
80%
Humidity
Very Humid

Weather

104 mm
Rainfall
1.1 m/s
Wind
Calm
2.1
UV Index
Extreme
12.8h daylight

August

August is hot, feeling like 33°C with oppressive humidity. Significant rainfall (138 mm) and mostly overcast skies.

59 Acceptable

Comfort

33°
Feels Like Hot
28°C
Temperature
24° 33°
82%
Humidity
Very Humid

Weather

138 mm
Rainfall
1.1 m/s
Wind
Calm
2.1
UV Index
Extreme
12.5h daylight

September

September is hot, feeling like 33°C with oppressive humidity. The wettest month with heavy rain (230 mm) and mostly overcast skies.

53 Acceptable

Comfort

33°
Feels Like Hot
28°C
Temperature
24° 32°
86%
Humidity
Very Humid

Weather

230 mm
Rainfall
0.9 m/s
Wind
Calm
2.0
UV Index
Very High
12.1h daylight

October

October is hot, feeling like 32°C with oppressive humidity. Significant rainfall (180 mm) and partly cloudy skies.

63 Good

Comfort

32°
Feels Like Hot
28°C
Temperature
24° 32°
84%
Humidity
Very Humid

Weather

180 mm
Rainfall
0.9 m/s
Wind
Calm
1.8
UV Index
Very High
11.7h daylight

November

November is warm with highs of 31°C and lows of 22°C. Moderate rainfall (37 mm).

81 Excellent

Comfort

27°
Feels Like Warm
27°C
Temperature
22° 31°
79%
Humidity
Very Humid

Weather

37 mm
Rainfall
1.2 m/s
Wind
Calm
1.7
UV Index
Very High
11.3h daylight

December

December is warm with highs of 31°C and lows of 20°C. The driest month with just 4 mm and mostly sunny skies.

95 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
20° 31°
68%
Humidity
Humid

Weather

4 mm
Rainfall
1.1 m/s
Wind
Calm
1.6
UV Index
Very High
11.2h daylight

Nearby Attractions to Wat Yai Chai Mongkhon