Weather Comparison
Side-by-side weather comparison for April
| Metric | Vientiane | Chiang Mai | Better |
|---|---|---|---|
| Average HighHigher is warmer | 34°C (93°F) | 36°C (97°F)▲ | Chiang Mai |
| Average LowHigher is milder | 24°C (75°F) | 24°C (75°F) | Tie |
| Rain DaysFewer is drier | 11 days | 5 days▲ | Chiang Mai |
| PrecipitationLess is drier | 68 mm | 31 mm▲ | Chiang Mai |
| Sunshine HoursMore is sunnier | 11h/day | 11h/day | Tie |
| HumidityLower is more comfortable | 78% | 78% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 11 km/h | 10 km/h▲ | Chiang Mai |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Chiang Mai edges ahead as the better destination in April. Chiang Mai offers 11 hours of daily sunshine with only 5 rain days, while Vientiane sees 11 sunshine hours and 11 rain days.
Vientiane can feel quite hot at 34°C, so plan for heat. Chiang Mai runs hot at 36°C.
For travelers who prioritize dry weather, Chiang Mai is the stronger choice in April.
Vientiane reaches an average high of 34°C (93°F) and drops to 24°C (75°F) at night during April. The daily temperature range is 10°C, meaning moderate variation throughout the day.
Chiang Mai averages 36°C (97°F) for the high and 24°C (75°F) for the low, with a daily range of 12°C. The 2°C difference is noticeable but not dramatic.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in April.
Vientiane receives approximately 68 mm of rainfall across 11 rain days during April. You can expect rain roughly every other day.
Chiang Mai sees 31 mm over 5 rain days. That makes Chiang Mai the drier option by 6 rain days and 37 mm of total precipitation.
Both cities share similar humidity levels at 78%.
Highs of 34°C, lows of 24°C, 11 rain days
Highs of 36°C, lows of 24°C, 5 rain days
Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, moisture-wicking fabrics. These items are useful in either destination during April.
The table below shows average high temperatures and rain days for every month. April is highlighted for quick reference.
| Month | Vientiane | Chiang Mai | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 27°C | 2d | 28°C | 1d |
| Feb | 30°C | 2d | 31°C | 1d |
| Mar | 32°C | 6d | 34°C | 2d |
| Apr | 34°C | 11d | 36°C | 5d |
| May | 32°C | 23d | 33°C | 14d |
| Jun | 30°C | 26d | 31°C | 20d |
| Jul | 30°C | 28d | 30°C | 23d |
| Aug | 30°C | 28d | 29°C | 25d |
| Sep | 30°C | 24d | 29°C | 24d |
| Oct | 29°C | 11d | 29°C | 16d |
| Nov | 29°C | 3d | 28°C | 4d |
| Dec | 27°C | 1d | 27°C | 2d |
Vientiane Weather in April
Full forecast, packing tips, and activities
Chiang Mai Weather in April
Full forecast, packing tips, and activities