Climate Insights for Thakhèk

Muang Thakhèk, Khammouan, Laos

Hottest
April
35°C peak
Coldest
December
17°C low
Wettest
July
458mm rain
Best to Visit
January, February, December
Mild temps & low rain

Climate Overview

The climate in Thakhèk is hot. The average annual temperature is 26°C and approximately 1870mm of precipitation falls per year. July is the wettest month, receiving around 458mm of rainfall. Thakhèk is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, March. The coldest months are December, February, January, when temperatures can drop to 17°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 29° Average: 23° Min: 18° Feb Max: 31° Average: 24° Min: 18° Mar Max: 33° Average: 27° Min: 22° Apr Max: 35° Average: 29° Min: 24° May Max: 34° Average: 29° Min: 25° Jun Max: 32° Average: 28° Min: 26° Jul Max: 31° Average: 28° Min: 25° Aug Max: 31° Average: 27° Min: 25° Sep Max: 32° Average: 28° Min: 25° Oct Max: 31° Average: 27° Min: 23° Nov Max: 31° Average: 25° Min: 21° Dec Max: 29° Average: 22° Min: 17°
Max
Average
Min

Thakhèk sees moderate temperature variation throughout the year, ranging from 17°C to 35°C. The warmest month is April, when average highs reach 35°C and the mean temperature sits around 29°C. December is the coolest month, with minimum temperatures around 17°C and an average of 22°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 4°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 12mm Feb Precipitation: 7mm Mar Precipitation: 36mm Apr Precipitation: 53mm May Precipitation: 199mm Jun Precipitation: 231mm Jul Precipitation: 458mm Aug Precipitation: 424mm Sep Precipitation: 257mm Oct Precipitation: 143mm Nov Precipitation: 39mm Dec Precipitation: 11mm
Precipitation

Thakhèk is a fairly wet location, receiving approximately 1870mm of precipitation annually, which averages out to around 156mm per month. The wettest month is July, averaging 458mm of rainfall. August and September also tend to see above-average precipitation. The driest month is February, with just 7mm. That's 451mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 3km/h Feb Wind Speed: 3km/h Mar Wind Speed: 2km/h Apr Wind Speed: 2km/h May Wind Speed: 2km/h Jun Wind Speed: 2km/h Jul Wind Speed: 2km/h Aug Wind Speed: 2km/h Sep Wind Speed: 2km/h Oct Wind Speed: 2km/h Nov Wind Speed: 3km/h Dec Wind Speed: 3km/h
Wind Speed

Thakhèk is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

93 days until Autumn

It is currently summer in Thakhèk, which began on June 21, 2026. Thakhèk is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 35°C, while the coldest stretch bottoms out in December near 17°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

Spring

Temperatures range from 22 to 35°C. Precipitation is moderate at around 288mm for the season, averaging 96mm per month. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 25 to 32°C. Rainfall is heavy, totalling around 1113mm across the season with a monthly average of 371mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 21 to 32°C. Rainfall is heavy, totalling around 439mm across the season with a monthly average of 146mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 17 to 31°C. Precipitation is minimal, with only around 30mm for the entire season. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 23°
Feb 24°
Mar 27°
Apr 29°
May 29°
Jun 28°
Jul 28°
Aug 27°
Sep 28°
Oct 27°
Nov 25°
Dec 22°

The best time to visit Thakhèk is during January, February and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 10mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 35°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Thakhèk based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
18 °C
29 °C
3 km/h
12 mm
0 cm
Feb
18 °C
31 °C
3 km/h
7 mm
0 cm
Mar
22 °C
33 °C
2 km/h
36 mm
0 cm
Apr
24 °C
35 °C
2 km/h
53 mm
0 cm
May
25 °C
34 °C
2 km/h
199 mm
0 cm
Jun Current
26 °C
32 °C
2 km/h
231 mm
0 cm
Jul
25 °C
31 °C
2 km/h
458 mm
0 cm
Aug
25 °C
31 °C
2 km/h
424 mm
0 cm
Sep
25 °C
32 °C
2 km/h
257 mm
0 cm
Oct
23 °C
31 °C
2 km/h
143 mm
0 cm
Nov
21 °C
31 °C
3 km/h
39 mm
0 cm
Dec
17 °C
29 °C
3 km/h
11 mm
0 cm
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