Thailand Chiang Mai Weather in August — Climate Guide
August in Chiang Mai is moderate
August is moderate for Chiang Mai.
Wettest month — 175mm rain. Hotels affordable. Lush emerald countryside.
Travel score
Chiang Mai August Weather Stats
Avg High
32°C
Avg Low
23°C
Rainy Days
16
175mm total
Sunshine
6h
Daily avg
Humidity
82%
high
UV Index
9
Very high
Wind
6 km/h
Gusts 15
Sea Temp
0°C
no swimming
Crowds
Moderate
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
18 μg/m³
PM10
30 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
35°C
Nighttime
24°C
Humidity and wind affect how the actual temperature feels.
Wind
6 km/h
Max gust 15 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Hotels affordable
- Emerald countryside peak
Cons
- 175mm rain (wettest)
- Humid 82%
- Outdoor sites soggy
August Events & Festivals
- Rainy season peak
Chiang Mai in August — Full Picture
Wettest month — 175mm rain. Hotels affordable. Lush emerald countryside.
What to Wear & What to Pack
Wettest month. T-shirt + waterproof + umbrella.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
34.7°C
22°C
6.3/mo
Summer (Jun·Jul·Aug)
Current32°C
23°C
14.3/mo
Autumn (Sep·Oct·Nov)
30.3°C
21°C
11.3/mo
Winter (Dec·Jan·Feb)
29°C
15.7°C
2/mo
Chiang Mai Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 28° | 15° | 2d·10mm | 8h | 65% | 7 | Very busy | Peak |
| February (Best) | 31° | 17° | 2d·10mm | 9h | 60% | 8 | Very busy | Peak |
| 34° | 20° | 3d·25mm | 9h | 60% | 10 | Busy | Shoulder | |
| 36° | 23° | 5d·50mm | 8h | 65% | 11 | Busy | Peak | |
| 34° | 23° | 11d·150mm | 7h | 75% | 11 | Quiet | Low season | |
| 32° | 23° | 13d·130mm | 6h | 80% | 10 | Quiet | Low season | |
| 32° | 23° | 14d·150mm | 6h | 80% | 10 | Moderate | Shoulder | |
| 32° | 23° | 16d·175mm | 6h | 82% | 9 | Moderate | Shoulder | |
| 32° | 23° | 17d·200mm | 6h | 82% | 8 | Quiet | Low season | |
| 30° | 22° | 12d·130mm | 7h | 80% | 8 | Moderate | Shoulder | |
| November (Best) | 29° | 18° | 5d·50mm | 8h | 70% | 7 | Very busy | Peak |
| December (Best) | 28° | 15° | 2d·15mm | 8h | 65% | 7 | Very busy | Peak |
View Other Months
Chiang Mai August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Chiang Mai?
Chiang Mai in August is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Chiang Mai in August?
Chiang Mai August averages a high of 32°C and a low of 23°C.
Does it rain much in Chiang Mai in August?
Chiang Mai August averages 175mm of rainfall over about 16 rainy days.
What should I wear in Chiang Mai in August?
Wettest month. T-shirt + waterproof + umbrella.
What time are sunrise and sunset in Chiang Mai in August?
Chiang Mai August sunrise is 06:05 and sunset is 18:40, with 12h 35min of daylight.
What's the air quality like in Chiang Mai in August?
Chiang Mai August air quality (AQI) averages 50, rated Good. PM2.5 averages 18μg/m³.
What activities are recommended in Chiang Mai in August?
In August, Chiang Mai is great for Morning Old City, Indoor afternoon, Spa days.
Is August peak season in Chiang Mai?
Chiang Mai August crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Chiang Mai
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.