Wat Phra That Phu Khao Temple

Ancient hilltop temple with panoramic provincial views

Wat Phra That Phu Khao at a Glance#

Hours: Daily dawn-dusk

Admission: Free (donations welcome)

About Wat Phra That Phu Khao#

On a hill above the Mekong River and beside the House of Opium stands Wat Phra That Phu Khao, “the temple on the hill”, founded in the 8th century by the king of the long-vanished city-state of Wiang Hirannakhon Ngoen Yang.

A stone-built and restored viharn and several crumbling chedis are all that remain of this ancient temple. Few visitors show much interest in the temple itself, however, as this is the best spot in Sop Ruak from which to view and photograph the majestic Mekong and the Golden Triangle. Do not expect to escape the vendors: the viewpoint over the confluence of the rivers and the meeting point of three countries is surrounded by souvenir shops, and children dressed in hill-tribe costume will pose beside the Golden Triangle sign for a small fee.

Best Time to Visit Wat Phra That Phu Khao#

Plan a visit in the cool, dry season (November-February) for the most comfortable conditions and best visibility.

Cool / Dry (best)
November-February · 18-31°C
Clearer skies and milder temperatures make hilltop temple visits and views more pleasant; expect more visitors.
Hot
March-May · 30-38°C
Hot, sunny days - go early to avoid heat and strong sun exposure.
Rainy
May-October · 24-33°C
Frequent rain and muddy trails on hill approaches; fewer tourists during heavy rains.

Weather & Climate near Wat Phra That Phu Khao#

Climate

Wat Phra That Phu Khao's climate is classified as Tropical Savanna - Tropical Savanna climate with hot summers (peaking in April) and warm winters (coldest in December). Temperatures range from 13°C to 35°C. Abundant rainfall (1193 mm/year), wettest in August with a pronounced dry season.

Air Quality: AQI 85 Moderate
Best Time to Visit
FebruaryJanuaryDecember
Temperature & Rainfall
Temperature Range
41°
Warmest Month
Coldest Month
Monthly Conditions

January

January is mild with highs of 29°C and lows of 13°C. The driest month with just 3 mm and mostly sunny skies.

93 Ideal

Comfort

21°
Feels Like Mild
21°C
Temperature
13° 29°
70%
Humidity
Humid

Weather

3 mm
Rainfall
0.8 m/s
Wind
Calm
1.4
UV Index
High
11.0h daylight

February

February is mild with highs of 31°C and lows of 14°C. Almost no rain and mostly sunny skies.

95 Ideal

Comfort

23°
Feels Like Mild
23°C
Temperature
14° 31°
62%
Humidity
Humid

Weather

8 mm
Rainfall
0.9 m/s
Wind
Calm
1.7
UV Index
Very High
11.4h daylight

March

March is warm with highs of 34°C and lows of 17°C. Moderate rainfall (31 mm) and mostly sunny skies.

83 Excellent

Comfort

26°
Feels Like Warm
26°C
Temperature
17° 34°
58%
Humidity
Humid

Weather

31 mm
Rainfall
1.1 m/s
Wind
Calm
1.8
UV Index
Very High
11.9h daylight

April

April is the hottest month, feeling like 30°C. Regular rainfall (87 mm).

75 Very Good

Comfort

30°
Feels Like Hot
28°C
Temperature
21° 35°
63%
Humidity
Humid

Weather

87 mm
Rainfall
1.4 m/s
Wind
Calm
2.1
UV Index
Extreme
12.4h daylight

May

May is hot, feeling like 30°C due to high humidity. Significant rainfall (166 mm) and mostly overcast skies.

59 Acceptable

Comfort

30°
Feels Like Hot
27°C
Temperature
22° 33°
75%
Humidity
Very Humid

Weather

166 mm
Rainfall
1.4 m/s
Wind
Calm
2.1
UV Index
Extreme
12.9h daylight

June

June is hot, feeling like 31°C with oppressive humidity. Significant rainfall (137 mm) and mostly overcast skies.

59 Acceptable

Comfort

31°
Feels Like Hot
27°C
Temperature
23° 32°
81%
Humidity
Very Humid

Weather

137 mm
Rainfall
1.3 m/s
Wind
Calm
2.0
UV Index
Extreme
13.1h daylight

July

July is warm with muggy conditions (dew point 22°C). Heavy rain (218 mm) and mostly overcast skies.

55 Acceptable

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°
84%
Humidity
Very Humid

Weather

218 mm
Rainfall
1.3 m/s
Wind
Calm
2.0
UV Index
Very High
13.0h daylight

August

August is warm with muggy conditions (dew point 22°C). The wettest month with heavy rain (245 mm) and mostly overcast skies.

63 Good

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 30°
86%
Humidity
Very Humid

Weather

245 mm
Rainfall
1.2 m/s
Wind
Calm
1.9
UV Index
Very High
12.6h daylight

September

September is warm with muggy conditions (dew point 22°C). Significant rainfall (191 mm) and mostly overcast skies.

65 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 31°
84%
Humidity
Very Humid

Weather

191 mm
Rainfall
1.2 m/s
Wind
Calm
1.9
UV Index
Very High
12.1h daylight

October

October is warm with highs of 30°C and lows of 21°C. Moderate rainfall (75 mm) and partly cloudy skies.

77 Very Good

Comfort

26°
Feels Like Warm
26°C
Temperature
21° 31°
81%
Humidity
Very Humid

Weather

75 mm
Rainfall
1.5 m/s
Wind
Calm
1.7
UV Index
Very High
11.6h daylight

November

November is mild with highs of 29°C and lows of 17°C. Light rainfall.

91 Ideal

Comfort

23°
Feels Like Mild
23°C
Temperature
17° 29°
78%
Humidity
Very Humid

Weather

24 mm
Rainfall
1.0 m/s
Wind
Calm
1.6
UV Index
Very High
11.2h daylight

December

December is mild with highs of 28°C and lows of 14°C. Almost no rain and mostly sunny skies.

93 Ideal

Comfort

21°
Feels Like Mild
21°C
Temperature
14° 28°
75%
Humidity
Very Humid

Weather

8 mm
Rainfall
0.8 m/s
Wind
Calm
1.4
UV Index
High
10.9h daylight

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