Chiang Mai weather in August
Chiang Mai in August averages 28°C (82°F), 234 mm of rain and 3.6 hours of sun a day. It is one of the wetter months of the year here.
Of the twelve months in Chiang Mai, August is the wettest and the dullest.
- Average temp
- 28°C (82°F)
24–32°C · 75–89°F
- Rainfall
- 234 mm
A wet month
- Sunshine
- 3.6 h
hours per day
What is Chiang Mai like in August?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Expect frequent rain — this is a wet month.
Evening
Evenings stay warm.
What should I pack for Chiang Mai in August?
High-factor sun cream
With daytime highs around 32°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A proper waterproof, not a folding umbrella
234 mm in the month usually arrives as heavy bursts that an umbrella will not cover.
A dry bag for phone and documents
Worth it for one downpour caught between the taxi and the door.
August compared with July and September
August in Chiang Mai is about the same temperature as July and 81 mm wetter than it, which averages 28°C (83°F).
August in Chiang Mai is about the same temperature as September and 16 mm wetter than it, which averages 28°C (82°F).
Daylight in Chiang Mai in August
On 15 August the sun is up for 12 hours 46 minutes in Chiang Mai, rising about 06:05 and setting about 18:51 local time.
August ends 28 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
Where to stay in Chiang Mai
Dates are a starting point for August.
Travel guides for Chiang Mai
What to read before you book.
Chiang Mai weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 23°C / 73°F | 8 mm |
| February | 25°C / 77°F | 9 mm |
| March | 28°C / 82°F | 22 mm |
| April | 30°C / 86°F | 56 mm |
| May | 29°C / 85°F | 164 mm |
| June | 29°C / 84°F | 111 mm |
| July | 28°C / 83°F | 153 mm |
| August | 28°C / 82°F | 234 mm |
| September | 28°C / 82°F | 218 mm |
| October | 27°C / 81°F | 118 mm |
| November | 26°C / 78°F | 39 mm |
| December | 23°C / 74°F | 14 mm |
Similar weather in August
Other destinations whose August averages sit close to this one.
Check another month
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FAQs about Chiang Mai in August
August climate averages for Chiang Mai, 1991–2020.
Chiang Mai averages 28°C (82°F) in August, ranging from about 24°C (75°F) at night to 32°C (89°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Yes, a lot. August brings about 234 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
They are about the same. August averages 28°C (82°F) and September 28°C (82°F), so temperature alone will not decide between them.
August is about as warm as July, and 81 mm wetter.
It is outside the easiest window. The most comfortable stretch here is October to March; August sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 3.6 hours of sun a day on the 1991–2020 average, so daylight is short on useful sun.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 46 minutes of daylight in mid-August, against 13 hours 15 minutes in June and 11 hours 1 minute in December.
On 15 August, sunrise is about 06:05 and sunset about 18:51 local time. Both shift across the month — the month ends 28 minutes shorter than it starts.
