Climate Insights for Phôngsali

, Khouèng Phôngsali, Laos

Hottest
May
31°C peak
Coldest
January
11°C low
Wettest
August
388mm rain
Best to Visit
January, February, March
Mild temps & low rain

Climate Overview

The climate in Phôngsali is warm and mild. The average annual temperature is 22°C and approximately 1651mm of precipitation falls per year. August is the wettest month, receiving around 388mm of rainfall. Phôngsali is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, June. The coldest months are January, February, December, when temperatures can drop to 11°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 22° Average: 16° Min: 11° Feb Max: 25° Average: 17° Min: 12° Mar Max: 29° Average: 21° Min: 15° Apr Max: 30° Average: 24° Min: 18° May Max: 31° Average: 25° Min: 21° Jun Max: 30° Average: 26° Min: 23° Jul Max: 29° Average: 25° Min: 23° Aug Max: 29° Average: 25° Min: 22° Sep Max: 29° Average: 25° Min: 21° Oct Max: 27° Average: 23° Min: 19° Nov Max: 26° Average: 20° Min: 16° Dec Max: 23° Average: 17° Min: 12°
Max
Average
Min

Phôngsali sees moderate temperature variation throughout the year, ranging from 11°C to 31°C. The warmest month is May, when average highs reach 31°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 11°C and an average of 16°C. On average, daily temperatures fluctuate by about 10°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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 41mm Feb Precipitation: 23mm Mar Precipitation: 29mm Apr Precipitation: 82mm May Precipitation: 148mm Jun Precipitation: 235mm Jul Precipitation: 331mm Aug Precipitation: 388mm Sep Precipitation: 214mm Oct Precipitation: 95mm Nov Precipitation: 33mm Dec Precipitation: 31mm
Precipitation

Phôngsali is a fairly wet location, receiving approximately 1651mm of precipitation annually, which averages out to around 138mm per month. The wettest month is August, averaging 388mm of rainfall. July and June also tend to see above-average precipitation. The driest month is February, with just 23mm. That's 365mm less than August, 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: 9km/h Mar Wind Speed: 10km/h Apr Wind Speed: 10km/h May Wind Speed: 9km/h Jun Wind Speed: 8km/h Jul Wind Speed: 7km/h Aug Wind Speed: 6km/h Sep Wind Speed: 6km/h Oct Wind Speed: 6km/h Nov Wind Speed: 6km/h Dec Wind Speed: 7km/h
Wind Speed

Phôngsali is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

Seasons

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

89 days until Summer

It is currently spring in Phôngsali, which began on March 20, 2026. Phôngsali 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 May at around 31°C, while the coldest stretch bottoms out in January near 11°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 15 to 31°C. Precipitation is moderate at around 258mm for the season, averaging 86mm per month. Winds are generally light, averaging 10km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 955mm across the season with a monthly average of 318mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 16 to 29°C. Rainfall is heavy, totalling around 342mm across the season with a monthly average of 114mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 11 to 25°C. Rainfall is relatively light, with around 96mm over the season and a monthly average of 32mm. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 16°
Feb 17°
Mar 21°
Apr 24°
May 25°
Jun 26°
Jul 25°
Aug 25°
Sep 25°
Oct 23°
Nov 20°
Dec 17°

The best time to visit Phôngsali is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 48mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 31°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Phôngsali 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
11 °C
22 °C
7 km/h
41 mm
0 cm
Feb
12 °C
25 °C
9 km/h
23 mm
0 cm
Mar Current
15 °C
29 °C
10 km/h
29 mm
0 cm
Apr
18 °C
30 °C
10 km/h
82 mm
0 cm
May
21 °C
31 °C
9 km/h
148 mm
0 cm
Jun
23 °C
30 °C
8 km/h
235 mm
0 cm
Jul
23 °C
29 °C
7 km/h
331 mm
0 cm
Aug
22 °C
29 °C
6 km/h
388 mm
0 cm
Sep
21 °C
29 °C
6 km/h
214 mm
0 cm
Oct
19 °C
27 °C
6 km/h
95 mm
0 cm
Nov
16 °C
26 °C
6 km/h
33 mm
0 cm
Dec
12 °C
23 °C
7 km/h
31 mm
0 cm
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Metric (°C, km/h)