Chiang Mai in August
In August, Chiang Mai averages 31°C (88°F) during the day and 23°C (73°F) at night, with frequent rain — about 17 days of the month see precipitation (205 mm total).
High seasonConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
August is one of the wetter and less comfortable months in Chiang Mai. If your dates are flexible, consider a different time of year.
How August compares to the rest of the year in Chiang Mai
August is in the middle of the year for warmth in Chiang Mai (7th of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 1°C below the annual average (32°C). August runs 1°C cooler than July (32°C) and stays flat into September.
August sunrise & sunset in Chiang Mai
Times shown for Chiang Mai local time (Asia/Bangkok), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Chiang Mai — August
Golden-hour and blue-hour windows for the 15th of August, in Chiang Mai's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Chiang Mai in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (High season) and Chiang Mai's popularity.
Crowds & pricing — August in Chiang Mai
This is a busy month in Chiang Mai — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: Northern Hemisphere summer holidays
Sun & mosquito risk — August in Chiang Mai
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Chiang Mai in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 29°C / 84°F | 14°C / 57°F | 5 mm | 1 | 0 |
| February | 32°C / 90°F | 15°C / 59°F | 10 mm | 1 | 0 |
| March | 34°C / 93°F | 18°C / 64°F | 30 mm | 3 | 0 |
| April | 36°C / 97°F | 22°C / 72°F | 55 mm | 5 | 0 |
| May | 34°C / 93°F | 23°C / 73°F | 165 mm | 12 | 0 |
| June | 33°C / 91°F | 23°C / 73°F | 150 mm | 12 | 0 |
| July | 32°C / 90°F | 23°C / 73°F | 165 mm | 15 | 0 |
| August | 31°C / 88°F | 23°C / 73°F | 205 mm | 17 | 0 |
| September | 31°C / 88°F | 23°C / 73°F | 250 mm | 18 | 0 |
| October | 31°C / 88°F | 22°C / 72°F | 140 mm | 10 | 0 |
| November | 30°C / 86°F | 19°C / 66°F | 50 mm | 5 | 0 |
| December | 28°C / 82°F | 16°C / 61°F | 15 mm | 2 | 0 |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Chiang Mai in August →
Frequently asked questions
How hot is Chiang Mai in August?
In August, Chiang Mai averages a high of 31°C (88°F) and a low of 23°C (73°F) — generally hot.
Does it rain a lot in Chiang Mai in August?
August is quite rainy in Chiang Mai, with about 17 rainy days on average.
Is August a good time to visit Chiang Mai?
August is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Chiang Mai in August?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full August packing list for Chiang Mai for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.