Climate Insights for Khong

Champasak, Laos

Hottest
April
36°C peak
Coldest
December
21°C low
Wettest
September
340mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Khong is hot. The average annual temperature is 28°C and approximately 1800mm of precipitation falls per year. September is the wettest month, receiving around 340mm of rainfall. Khong is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, March, February. The coldest months are December, January, February, when temperatures can drop to 21°C.

Temperature

0° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 33° Average: 27° Min: 22° Feb Max: 35° Average: 28° Min: 23° Mar Max: 36° Average: 30° Min: 25° Apr Max: 36° Average: 31° Min: 27° May Max: 34° Average: 29° Min: 26° Jun Max: 33° Average: 29° Min: 26° Jul Max: 32° Average: 28° Min: 25° Aug Max: 32° Average: 28° Min: 25° Sep Max: 31° Average: 28° Min: 25° Oct Max: 32° Average: 27° Min: 24° Nov Max: 32° Average: 27° Min: 23° Dec Max: 31° Average: 26° Min: 21°
Max
Average
Min

Khong sees moderate temperature variation throughout the year, ranging from 21°C to 36°C. April is the hottest month, with daytime highs reaching 36°C and an average of 31°C. December is the coolest month, with minimum temperatures around 21°C and an average of 26°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 8mm Feb Precipitation: 7mm Mar Precipitation: 36mm Apr Precipitation: 73mm May Precipitation: 212mm Jun Precipitation: 231mm Jul Precipitation: 306mm Aug Precipitation: 274mm Sep Precipitation: 340mm Oct Precipitation: 218mm Nov Precipitation: 71mm Dec Precipitation: 23mm
Precipitation

Khong is a fairly wet location, receiving approximately 1800mm of precipitation annually, which averages out to around 150mm per month. The wettest month is September, averaging 340mm of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 7mm. That's 333mm less than September, 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 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 7km/h Feb Wind Speed: 7km/h Mar Wind Speed: 7km/h Apr Wind Speed: 6km/h May Wind Speed: 6km/h Jun Wind Speed: 6km/h Jul Wind Speed: 7km/h Aug Wind Speed: 7km/h Sep Wind Speed: 6km/h Oct Wind Speed: 5km/h Nov Wind Speed: 6km/h Dec Wind Speed: 7km/h
Wind Speed

Khong is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

Seasons

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

87 days until Winter

It is currently autumn in Khong, which began on September 23, 2026. Khong 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 36°C, while the coldest stretch bottoms out in December near 21°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from 25 to 36°C. Rainfall is heavy, totalling around 321mm across the season with a monthly average of 107mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 25 to 33°C. Rainfall is heavy, totalling around 811mm across the season with a monthly average of 270mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 629mm across the season with a monthly average of 210mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 21 to 35°C. Precipitation is minimal, with only around 38mm for the entire season. Winds are generally light, averaging 7km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Khong 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
22 °C
33 °C
7 km/h
8 mm
0 cm
Feb
23 °C
35 °C
7 km/h
7 mm
0 cm
Mar
25 °C
36 °C
7 km/h
36 mm
0 cm
Apr
27 °C
36 °C
6 km/h
73 mm
0 cm
May
26 °C
34 °C
6 km/h
212 mm
0 cm
Jun
26 °C
33 °C
6 km/h
231 mm
0 cm
Jul
25 °C
32 °C
7 km/h
306 mm
0 cm
Aug
25 °C
32 °C
7 km/h
274 mm
0 cm
Sep Current
25 °C
31 °C
6 km/h
340 mm
0 cm
Oct
24 °C
32 °C
5 km/h
218 mm
0 cm
Nov
23 °C
32 °C
6 km/h
71 mm
0 cm
Dec
21 °C
31 °C
7 km/h
23 mm
0 cm
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Metric (°C, km/h)