Thailand in July: where is it warmest?
In July, Bangkok is the warmest place with 32 °C by day, Ko Pha-ngan the coolest with 26 °C. 10 of 12 destinations have good holiday weather.
All destinations in July, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Bangkok | 26 | 32° | – | 5 h | 23 |
| Hua Hin | 64 | 31° | 30° | 4 h | 22 |
| Koh Samui | 69 | 30° | 30° | 6 h | 21 |
| Pattaya | 67 | 30° | 30° | 5 h | 18 |
| Chiang Mai | 32 | 30° | – | 4 h | 22 |
| Koh Lanta | 67 | 29° | 30° | 5 h | 24 |
| Patong, Phuket | 66 | 29° | 29° | 5 h | 25 |
| Ao Nang, Krabi | 66 | 29° | 30° | 5 h | 25 |
| Khao Lak | 66 | 29° | 29° | 5 h | 25 |
| Koh Tao | 67 | 28° | 29° | 5 h | 20 |
| Phuket | 66 | 28° | 30° | 5 h | 25 |
| Ko Pha-ngan | 68 | 26° | 30° | 5 h | 21 |
Thailand in July: quick answers
Thailand in July: where is it warmest?
The warmest places in July are Bangkok (32 °C), Hua Hin (31 °C) and Koh Samui (30 °C).
Thailand in July: where is the sea warmest?
The sea is warmest at Hua Hin (30 °C), Koh Samui (30 °C) and Pattaya (30 °C).
Thailand in July: where is the weather best?
The best holiday weather in July – warm, sunny and dry – is in Koh Samui, Ko Pha-ngan and Pattaya.
Thailand month by month
Thailand: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences