Chiang Mai Weather in August
Thailand · August climate averages and travel tips
Chiang Mai in August sees daytime temperatures around 29°C (85°F), dropping to about 22°C (72°F) at night. The month is very wet, with about 246 mm (9.7 in) of rain spread over 27 days, making it the wettest month of the year. Humidity averages 87%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.6 hours of daylight and frequently cloudy skies.
Is August a good time to visit Chiang Mai?
August is not the best time to visit Chiang Mai (1.6/10) mainly because of the rain. The weather is much better in January.
Visiting Chiang Mai in August
August weather
Chiang Mai feels warm, sticky and often grey in August. The high is 29°C and the low is 22°C, with rain on 27 days. Showers can interrupt a day out, and wet paths make longer hikes less appealing. You can still explore temples such as Wat Chedi Luang between showers, or duck into cafés around Nimman when rain sets in.
If you hate crowds, August's quieter streets may suit you.
What to do
The rain doesn't usually mean staying indoors all day, but keep your plans flexible. A break in the showers can be a good time to wander the Old City's temples and lanes. Skip exposed mountain trails when paths are slick, and take care on the steep road up to Doi Suthep. For a local-weather tip, leave the waterfall stops on the Mae Sa route for a drier day; heavy rain can make paths muddy and water levels rise.
August 12 is Thailand's Queen Sirikit's birthday and Mother's Day. You may see public celebrations, though it's not a Chiang Mai-only festival.
Crowds and costs
August is part of the rainy-season low period, so Chiang Mai is generally quieter than in the cool, dry months around January. Hotels and flights can cost less than during peak season, though exact deals vary. The trade-off is cloud, humidity and frequent showers; sunshine averages just 0.7 hours a day.
Travelling with kids? Keep a rainy-day option nearby, such as the Chiang Mai City Arts & Cultural Centre in the Old City. You'll have more room to explore than in high season, but a wet afternoon can still change your plans.
August weather at a glance
| Average high | 29°C (85°F) |
|---|---|
| Average low | 22°C (72°F) |
| Daily mean | 25°C (77°F) |
| Rainfall | 246 mm (9.7 in) |
| Rainy days (1 mm+) | 27 |
| Humidity | 87% |
| Cloud cover | 95% |
| Daylight | 12.6 hours |
| Est. sunshine | 0.7 hours/day |
| Wind | 0.1 km/h |
| vs July | 1°C cooler than July, with 62 mm more rain. |
What to pack for Chiang Mai in August
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
Chiang Mai weather in other months
← JulyBest time to visit Chiang MaiSeptember →
Better weather in August nearby
- Astana25°C · 30 mm · Excellent
- Baku29°C · 3 mm · Excellent
- Sanaa29°C · 13 mm · Excellent
- Istanbul30°C · 17 mm · Excellent
- Ulan Bator23°C · 73 mm · Excellent
- Bali28°C · 27 mm · Excellent
Nearby in August
- Nay Pyi Taw32°C · 177 mm
- Luang Prabang31°C · 248 mm
- Yangon30°C · 317 mm
- Vientiane30°C · 246 mm
- Mandalay36°C · 49 mm
- Bangkok32°C · 196 mm
Where else is good in August? See where to go in August.