Weather Comparison
Side-by-side weather comparison for October
| Metric | Vientiane | Chiang Mai | Better |
|---|---|---|---|
| Average HighHigher is warmer | 29°C (84°F) | 29°C (84°F) | Tie |
| Average LowHigher is milder | 22°C (72°F)▲ | 21°C (70°F) | Vientiane |
| Rain DaysFewer is drier | 9 days▲ | 16 days | Vientiane |
| PrecipitationLess is drier | 105 mm▲ | 111 mm | Vientiane |
| Sunshine HoursMore is sunnier | 3h/day | 10h/day▲ | Chiang Mai |
| HumidityLower is more comfortable | 78% | 78% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 15 km/h | 6 km/h▲ | Chiang Mai |
Vientiane and Chiang Mai are closely matched in October. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
Vientiane can feel quite hot at 29°C, so plan for heat. Chiang Mai runs hot at 29°C.
For travelers who prioritize dry weather, Vientiane is the stronger choice in October. Chiang Mai receives 7 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Vientiane reaches an average high of 29°C (84°F) and drops to 22°C (72°F) at night during October. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Chiang Mai averages 29°C (84°F) for the high and 21°C (70°F) for the low, with a daily range of 8°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in October.
Vientiane receives approximately 105 mm of rainfall across 9 rain days during October. You can expect rain roughly every other day.
Chiang Mai sees 111 mm over 16 rain days. That makes Vientiane the drier option by 7 rain days and 6 mm of total precipitation.
Both cities share similar humidity levels at 78%.
Highs of 29°C, lows of 22°C, 9 rain days
Highs of 29°C, lows of 21°C, 16 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 October.
The table below shows average high temperatures and rain days for every month. October is highlighted for quick reference.
| Month | Vientiane | Chiang Mai | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 28°C | 7d | 28°C | 1d |
| Feb | 29°C | 9d | 31°C | 1d |
| Mar | 30°C | 12d | 34°C | 2d |
| Apr | 31°C | 15d | 36°C | 5d |
| May | 32°C | 17d | 33°C | 14d |
| Jun | 32°C | 18d | 31°C | 20d |
| Jul | 32°C | 17d | 30°C | 23d |
| Aug | 31°C | 15d | 29°C | 25d |
| Sep | 30°C | 12d | 29°C | 24d |
| Oct | 29°C | 9d | 29°C | 16d |
| Nov | 28°C | 7d | 28°C | 4d |
| Dec | 28°C | 6d | 27°C | 2d |
Vientiane Weather in October
Full forecast, packing tips, and activities
Chiang Mai Weather in October
Full forecast, packing tips, and activities