The best time to visit Laos is Nov–Feb. Month by month, the verdicts rate Oct–Feb as comfortable on both daytime heat and rainfall — 5 months in all.
Monsoon May–Oct
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 26.1 | 79 | 6% | Go |
| February | 28.9 | 84 | 6% | Go |
| March | 31.8 | 89 | 17% | Fair |
| April | 33.0 | 91 | 39% | Too hot |
| May | 32.1 | 90 | 62% | Too wet |
| June | 30.9 | 88 | 66% | Too wet |
| July | 29.3 | 85 | 80% | Too wet |
| August | 28.8 | 84 | 81% | Too wet |
| September | 29.0 | 84 | 65% | Too wet |
| October | 28.6 | 83 | 35% | Go |
| November | 27.1 | 81 | 15% | Go |
| December | 24.9 | 77 | 7% | Go |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
January is the driest month, with rain on 6% of days and daytime highs near 26.1°C (79°F). August is the wettest, at 81%. The warmest month is April at 33.0°C (91°F); the coolest is December at 24.9°C (77°F). The record rules out too hot in April; too wet in May–Sep.