Salavan, Laos experiences average highs of 31°C (88°F) and lows of 22°C (72°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Salavan, Laos Weather & Climate 2026
Monthly climate averages for Salavan, Laos. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.9/10
Best: January, February, November, December
UV Index
8
High
Temperature 31°C / 22°C
Feels Like 35°C / 25°C
Rainy Days 14
Rainfall 145 mm
Sunshine 9 h
Humidity 77%
Wind Speed 9 km/h
Dew Point 22°C
Hottest Month
35°C
April
Avg Low24°C
Rain11days
Coldest Month
18°C
January
Avg High30°C
Rain2days
Driest Month
1days
February
Avg High32°C
Avg Low19°C
Windiest Month
12 km/h
December (Gusts 33)
Worst Time to Visit
Consider avoiding April, May, June, August due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:24
Daylight 13.1h
Sunset 18:28
Live conditions—
Salavan on the map · live conditions
Salavan, Laos
- Continent
- Asia
- Country
- Laos
- City
- Salavan
- Population
- 5.5K
- Coordinates
- 15.72°, 106.42°
Seasonal Breakdown
Spring
Mar–May
Avg High 34°C
Avg Low 23°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 30°C
Avg Low 24°C
Rain 27 days/mo
Autumn
Sep–Nov
Avg High 29°C
Avg Low 22°C
Rain 16 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 30°C
Avg Low 18°C
Rain 2 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 30°C / 18°C . Feb: 32°C / 19°C . Mar: 34°C / 22°C . Apr: 35°C / 24°C . May: 33°C / 24°C . Jun: 31°C / 24°C . Jul: 29°C / 24°C . Aug: 29°C / 23°C . Sep: 29°C / 23°C . Oct: 29°C / 22°C . Nov: 29°C / 20°C . Dec: 28°C / 18°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 5 mm. Feb: 5 mm. Mar: 24 mm. Apr: 55 mm. May: 147 mm. Jun: 193 mm. Jul: 376 mm. Aug: 330 mm. Sep: 358 mm. Oct: 178 mm. Nov: 54 mm. Dec: 11 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 67%. Feb: 61%. Mar: 61%. Apr: 66%. May: 78%. Jun: 83%. Jul: 87%. Aug: 88%. Sep: 89%. Oct: 85%. Nov: 80%. Dec: 74%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 10 km/h . Mar: 9 km/h . Apr: 9 km/h . May: 8 km/h . Jun: 9 km/h . Jul: 9 km/h . Aug: 8 km/h . Sep: 7 km/h . Oct: 8 km/h . Nov: 10 km/h . Dec: 12 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 11h. Mar: 11h. Apr: 11h. May: 10h. Jun: 10h. Jul: 8h. Aug: 8h. Sep: 8h. Oct: 9h. Nov: 10h. Dec: 10h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 7. Feb: UV 8. Mar: UV 9. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 7. Aug: UV 8. Sep: UV 7. Oct: UV 7. Nov: UV 7. Dec: UV 6.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 19 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Apr 2025 · 36°C | Apr · 35°C |
| Coldest month | Jan 2025 · 15°C | Jan · 18°C |
| Wettest month | Sep 2025 · 455 mm | Jul · 376 mm |
| Windiest month | Jan 2025 · 12 km/h | Dec · 12 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March
Fair April
Poor May
Wet June
Wet July
Wet August
Wet September
Wet October
Poor November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 30°C / 18°C | 32°C / 19°C | 2days (5 mm) Excellent | 9.9h Good | 67% Muggy | 6.9 High | Excellent | View Details |
| February best | 32°C / 19°C | 34°C / 20°C | 1days (5 mm) Excellent | 10.5h Excellent | 61% Muggy | 7.8 Very High | Excellent | View Details |
| March | 34°C / 22°C | 38°C / 25°C | 5days (24 mm) Good | 11.1h Excellent | 61% Muggy | 8.7 Very High | Fair | View Details |
| April | 35°C / 24°C | 40°C / 28°C | 11days (55 mm) Wet | 11.2h Excellent | 66% Muggy | 8.9 Very High | Poor | View Details |
| May | 33°C / 24°C | 39°C / 29°C | 22days (147 mm) Wet | 10h Excellent | 78% Humid | 8 Very High | Wet | View Details |
| June | 31°C / 24°C | 37°C / 29°C | 23days (193 mm) Wet | 9.7h Good | 83% Humid | 7.8 Very High | Wet | View Details |
| July | 29°C / 24°C | 35°C / 28°C | 28days (376 mm) Wet | 7.6h Good | 87% Very Muggy | 7.1 Very High | Wet | View Details |
| August | 29°C / 23°C | 35°C / 28°C | 29days (330 mm) Wet | 8h Good | 88% Very Muggy | 8.1 Very High | Wet | View Details |
| September | 29°C / 23°C | 35°C / 28°C | 26days (358 mm) Wet | 7.9h Good | 89% Very Muggy | 7.4 Very High | Wet | View Details |
| October | 29°C / 22°C | 34°C / 26°C | 17days (178 mm) Wet | 8.5h Good | 85% Humid | 6.9 High | Poor | View Details |
| November best | 29°C / 20°C | 33°C / 23°C | 6days (54 mm) Good | 9.7h Good | 80% Humid | 6.5 High | Excellent | View Details |
| December best | 28°C / 18°C | 30°C / 20°C | 2days (11 mm) Excellent | 9.8h Good | 74% Muggy | 6.2 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Salavan are January, February, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Salavan, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Salavan is April, with average daytime highs of 35°C (95°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Salavan is January, with average overnight lows of 18°C (64°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Salavan is July, averaging 376mm of precipitation across 28 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Salavan runs through August, July, September, June, with the heaviest rainfall in August. Based on 10-year averages for Salavan.
Salavan receives approximately 114 sunshine hours per year. The sunniest month is April with around 11 hours. Based on climate data for Salavan.
The least favorable months to visit Salavan are April, May, June, August, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, November, December instead.
The annual average UV index in Salavan is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Salavan is 77%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Average wind speeds in Salavan are 9 km/h (6 mph). The windiest month is December with peak winds reaching 12 km/h (7 mph) (gusts up to 33 km/h / 20 mph).
Salavan averages 3 clear-sky days per month with overall cloud cover around 64%. The clearest skies occur in February.
The annual average dew point in Salavan is 22°C (72°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Salavan has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Salavan ranges from 25°C (77°F) to 35°C (95°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Salavan, with a climate score of 2.1/10. Consider visiting during January, February, November, December instead for better conditions.
For June in Salavan, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 31°C (87°F) and 23 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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