Chiang Mai Weather in August

Thailand · August climate averages and travel tips

Avg high29°C (85°F)
Avg low22°C (72°F)
Rainfall246 mm (9.7 in)
RatingPoor 1.6/10

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 high29°C (85°F)
Average low22°C (72°F)
Daily mean25°C (77°F)
Rainfall246 mm (9.7 in)
Rainy days (1 mm+)27
Humidity87%
Cloud cover95%
Daylight12.6 hours
Est. sunshine0.7 hours/day
Wind0.1 km/h
vs July1°C cooler than July, with 62 mm more rain.

What to pack for Chiang Mai in August

Chiang Mai weather in other months

Jan27°C / 15°C17 mmExcellentFeb31°C / 16°C9 mmExcellentMar34°C / 19°C20 mmFairApr36°C / 22°C74 mmFairMay33°C / 23°C183 mmPoorJun31°C / 23°C141 mmPoorJul30°C / 23°C184 mmPoorAug29°C / 22°C246 mmPoorSep29°C / 22°C237 mmPoorOct28°C / 21°C141 mmPoorNov27°C / 18°C31 mmExcellentDec26°C / 16°C13 mmExcellent

← JulyBest time to visit Chiang MaiSeptember →

Better weather in August nearby

Nearby in August

Where else is good in August? See where to go in August.