Bangkok monthly weather and climate
Bangkok · Central Thailand · capital
Bangkok has little rain during its November–February dry season, but temperatures and air pollution begin to rise in February. April brings particularly intense afternoon heat. During the May–October rainy season, frequent showers and flooded streets can affect plans for getting around the city.
10 mmJan10 mmFeb50 mmMar110 mmApr180 mmMay180 mmJun180 mmJul170 mmAug220 mmSep190 mmOct40 mmNov10 mmDec
When are the dry and rainy seasons?
- Best time to visit
- Nov–Feb
- Dry season
- Nov–Feb
- Rainy season
- May–Oct
- Hottest month
- Apr (35°C)
- Wettest month
- Sep (220 mm)
Monthly weather and climate
Use the table below to compare hotter and rainier months. These are historical climate averages, not a forecast for your travel dates or an indication that swimming is allowed or safe.
| Month | Travel rating | Temperature | Rainfall | Rainy days | Humidity | Sunshine | Sea conditions |
|---|---|---|---|---|---|---|---|
| January | ++ Very good | 22~32°C (71.6~89.6°F) | 10 mm | 1 days | 70% | 9 hours | Not applicable |
| February | ++ Very good | 24~33°C (75.2~91.4°F) | 10 mm | 2 days | 72% | 8 hours | Not applicable |
| March | ++ Very good | 25~34°C (77~93.2°F) | 50 mm | 4 days | 71% | 9 hours | Not applicable |
| April | + Good | 26~35°C (78.8~95°F) | 110 mm | 7 days | 73% | 8 hours | Not applicable |
| May | ± Average | 26~34°C (78.8~93.2°F) | 180 mm | 15 days | 74% | 8 hours | Not applicable |
| June | ± Average | 26~33°C (78.8~91.4°F) | 180 mm | 15 days | 75% | 6 hours | Not applicable |
| July | ± Average | 25~32°C (77~89.6°F) | 180 mm | 16 days | 75% | 5 hours | Not applicable |
| August | ± Average | 25~32°C (77~89.6°F) | 170 mm | 17 days | 75% | 5 hours | Not applicable |
| September | - Not recommended | 25~32°C (77~89.6°F) | 220 mm | 19 days | 79% | 5 hours | Not applicable |
| October | ± Average | 24~31°C (75.2~87.8°F) | 190 mm | 16 days | 79% | 6 hours | Not applicable |
| November | ++ Very good | 23~31°C (73.4~87.8°F) | 40 mm | 5 days | 72% | 8 hours | Not applicable |
| December | ++ Very good | 22~31°C (71.6~87.8°F) | 10 mm | 1 days | 67% | 9 hours | Not applicable |
| Month | Weather and travel advice |
|---|---|
| January | This is the coolest and driest month. Conditions are comfortable, with very little smog at this point in the season. |
| February | Temperatures rise while the weather stays dry. Air pollution and fine particles increase, however. |
| March | The weather feels hot and stifling. Showers begin to arrive, sometimes taking the edge off the heat. |
| April | This is the hottest month and coincides with the Songkran water festival. Afternoon heat is especially intense. |
| May | The rainy season begins, with more afternoon showers. Temperatures decrease, but humidity rises. |
| June | Rainy-season weather brings brief, heavy showers each day. |
| July | As in June, regular rain and muggy conditions continue. |
| August | Continuing rain can cause localized flooding in parts of the city. |
| September | This is the wettest month, with the greatest likelihood of flooded streets. |
| October | Rain gradually decreases. The Chao Phraya River may still rise following the heavy rainfall. |
| November | The transition to the dry season brings clearer, more comfortable weather. |
| December | Little rain and comfortable weather make this a busy month for visitors. |