Climate averages 1991–2020
Weather in Thailand in December
In December, average daytime highs across the 46 cities listed in Thailand range from 25.5°C in Chiang Rai to 30.9°C in Khlong Luang. Monthly rainfall ranges from 4.9 mm in Si Maha Phot to 338 mm in Ban Mai.
Long-term climate patterns, not a forecast for a particular trip.
City by city
December in Thailand
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Bangkok | 30.6°C21.7°C | 21.7°C | 9.5 | 1.7 |
| Samut Prakan | 30.3°C22.3°C | 22.3°C | 9.5 | 1.7 |
| Mueang Nonthaburi | 30.8°C21.6°C | 21.6°C | 9.5 | 1.7 |
| Chon Buri | 30.8°C21.9°C | 21.9°C | 12 | 2.6 |
| Phra Pradaeng | 30.5°C21.9°C | 21.9°C | 9.5 | 1.7 |
| Bang Khae | 30.6°C22.1°C | 22.1°C | 9.5 | 1.7 |
| Hat Yai | 27.9°C23.5°C | 23.5°C | 277 | 21.9 |
| Sai Mai | 30.7°C21.4°C | 21.4°C | 8.8 | 2.0 |
| Si Racha | 30.5°C22.4°C | 22.4°C | 12 | 2.6 |
| Watthana | 30.4°C21.7°C | 21.7°C | 9.5 | 1.7 |
| Khlong Sam Wa | 30.6°C21.2°C | 21.2°C | 9.7 | 1.9 |
| Lat Krabang | 30.7°C21.6°C | 21.6°C | 9.7 | 1.9 |
| Chatuchak | 30.5°C21.5°C | 21.5°C | 9.5 | 1.7 |
| Ban Khlong Prawet | 30.5°C21.7°C | 21.7°C | 9.7 | 1.9 |
| Nong Chok | 30.7°C20.8°C | 20.8°C | 9.7 | 1.9 |
| Lampang | 27.8°C17.6°C | 17.6°C | 12 | 1.8 |
| Nong Khaem | 30.6°C22.1°C | 22.1°C | 11 | 2.2 |
| Bueng Kum | 30.6°C21.5°C | 21.5°C | 9.7 | 1.9 |
| Kabin Buri | 30.1°C20.4°C | 20.4°C | 5.1 | 1.2 |
| Surat Thani | 28.4°C23.1°C | 23.1°C | 149 | 15.7 |
| Udon Thani | 27.4°C17.3°C | 17.3°C | 6.4 | 0.9 |
| Chiang Mai | 27.1°C16.0°C | 16.0°C | 9.1 | 1.2 |
| Nakhon Ratchasima | 28.9°C19.1°C | 19.1°C | 5.3 | 1.3 |
| Hua Hin | 29.1°C22.8°C | 22.8°C | 18 | 3.1 |
| Ban Samae Dam | 30.1°C22.4°C | 22.4°C | 9.5 | 1.7 |
| Ubon Ratchathani | 29.4°C19.5°C | 19.5°C | 6.3 | 1.3 |
| Ban I Chang | 30.6°C21.5°C | 21.5°C | 12 | 2.3 |
| Khlong Luang | 30.9°C21.6°C | 21.6°C | 8.8 | 2.0 |
| Nakhon Pathom | 30.8°C21.8°C | 21.8°C | 12 | 2.3 |
| Thung Khru | 30.2°C22.3°C | 22.3°C | 9.5 | 1.7 |
| Pattaya | 30.4°C22.9°C | 22.9°C | 14 | 3.2 |
| Khon Kaen | 28.3°C18.3°C | 18.3°C | 5.1 | 1.0 |
| Rayong | 30.3°C23.0°C | 23.0°C | 17 | 3.3 |
| Nakhon Si Thammarat | 27.6°C23.0°C | 23.0°C | 250 | 20.0 |
| Si Maha Phot | 30.2°C20.5°C | 20.5°C | 4.9 | 1.2 |
| Chanthaburi | 30.0°C22.3°C | 22.3°C | 16 | 3.2 |
| Yala | 28.0°C22.3°C | 22.3°C | 236 | 21.3 |
| Ratchaburi | 30.0°C21.5°C | 21.5°C | 10 | 2.2 |
| Laem Chabang | 29.9°C22.9°C | 22.9°C | 14 | 3.2 |
| Ban Mai | 27.3°C24.8°C | 24.8°C | 338 | 22.4 |
| Nakhon Sawan | 29.8°C20.2°C | 20.2°C | 7.7 | 1.2 |
| Phuket | 28.1°C25.4°C | 25.4°C | 81 | 11.4 |
| Nong Prue | 28.8°C19.7°C | 19.7°C | 8.6 | 1.6 |
| Chiang Rai | 25.5°C15.4°C | 15.4°C | 27 | 3.7 |
| Thawi Watthana | 30.7°C21.9°C | 21.9°C | 9.5 | 1.7 |
| Sakon Nakhon | 27.6°C17.2°C | 17.2°C | 5.5 | 1.2 |
A rain day is a local calendar day with at least 1 mm of precipitation.