Islands in Champasak, Laos
4000 Islands weather by month and the best time to visit
When to go to 4000 Islands
Nov–Feb is dry and cooler. Mar–May is very hot; Jun–Oct rains bring high river levels, more mosquitoes and fewer visitors.
4000 Islands weather by month
Average daily high, rainfall and conditions.
- Jan32°4 mm
- Feb35°3 mm
- Mar37°24 mm
- Apr37°55 mm
- May35°128 mm
- Jun33°167 mm
- Jul31°249 mm
- Aug30°255 mm
- Sep30°236 mm
- Oct32°90 mm
- Nov32°17 mm
- Dec32°7 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 32°C90°F | 19°C66°F | 4 mm | 63% | Pleasant |
| February | 35°C95°F | 20°C69°F | 3 mm | 56% | Hot |
| March | 37°C98°F | 23°C74°F | 24 mm | 55% | Very hot |
| April | 37°C98°F | 25°C77°F | 55 mm | 59% | Very hot |
| May | 35°C95°F | 24°C76°F | 128 mm | 72% | Hot |
| June | 33°C91°F | 24°C75°F | 167 mm | 79% | Rainy |
| July | 31°C88°F | 23°C74°F | 249 mm | 84% | Rainy |
| August | 30°C87°F | 23°C74°F | 255 mm | 86% | Rainy |
| September | 30°C87°F | 23°C74°F | 236 mm | 87% | Rainy |
| October | 32°C89°F | 22°C72°F | 90 mm | 82% | Hot & humid |
| November | 32°C89°F | 21°C70°F | 17 mm | 77% | Hot & humid |
| December | 32°C89°F | 19°C67°F | 7 mm | 70% | Pleasant |
Best months across Laos
| Place | Best months | Warmest month |
|---|---|---|
| Luang Prabang | Nov–Feb | Apr (36°C) |
| Vang Vieng | Nov–Feb | Apr (35°C) |
| Vientiane | Nov–Feb | Apr (37°C) |
| 4000 Islands | Nov–Feb | Apr (37°C) |
| Pakse | Nov–Feb | Mar (36°C) |
| Nong Khiaw | Nov–Feb | Apr (35°C) |
| Thakhek | Nov–Feb | Apr (35°C) |
| Phonsavan | Nov–Mar | Apr (30°C) |
Quick answers
What is the best month to visit 4000 Islands?
Nov–Feb. Nov–Feb is dry and cooler. Mar–May is very hot; Jun–Oct rains bring high river levels, more mosquitoes and fewer visitors.
When is the rainy season in 4000 Islands?
Rain peaks in August with about 255 mm. Months with 150 mm or more: Jun–Sep.
What is the hottest month in 4000 Islands?
April, with average highs of 37°C (98°F).
How cold does 4000 Islands get?
The coolest nights are in January, averaging 19°C (66°F).
More about 4000 Islands
Going to 4000 Islands solo?
SoloSquare is where travelers, nomads and locals in 4000 Islands meet up for small plans: coffee, dinners, walks and day trips. Join one, or start your own in a minute.
Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.