Bangkok monthly weather and climate
Bangkok · Central Thailand, capital
Bangkok has little rain during its November-to-February dry season, but temperatures and air pollution start to rise in February. April brings particularly intense afternoon heat. During the May-to-October rainy season, frequent showers and flooded roads can affect plans for exploring 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 wetter months. These are historical climate averages, so they do not give a forecast for your travel dates or tell you whether you will be able to swim.
| Month | Travel rating | Temperature | Rainfall | Rainy days | Humidity | Sunshine | Sea conditions |
|---|---|---|---|---|---|---|---|
| January | ++ Very good | 22~32°C | 10 mm | 1 days | 70% | 9 hours | Not applicable |
| February | ++ Very good | 24~33°C | 10 mm | 2 days | 72% | 8 hours | Not applicable |
| March | ++ Very good | 25~34°C | 50 mm | 4 days | 71% | 9 hours | Not applicable |
| April | + Good | 26~35°C | 110 mm | 7 days | 73% | 8 hours | Not applicable |
| May | ± Average | 26~34°C | 180 mm | 15 days | 74% | 8 hours | Not applicable |
| June | ± Average | 26~33°C | 180 mm | 15 days | 75% | 6 hours | Not applicable |
| July | ± Average | 25~32°C | 180 mm | 16 days | 75% | 5 hours | Not applicable |
| August | ± Average | 25~32°C | 170 mm | 17 days | 75% | 5 hours | Not applicable |
| September | - Not recommended | 25~32°C | 220 mm | 19 days | 79% | 5 hours | Not applicable |
| October | ± Average | 24~31°C | 190 mm | 16 days | 79% | 6 hours | Not applicable |
| November | ++ Very good | 23~31°C | 40 mm | 5 days | 72% | 8 hours | Not applicable |
| December | ++ Very good | 22~31°C | 10 mm | 1 days | 67% | 9 hours | Not applicable |
| Month | Weather and travel advice |
|---|---|
| January | This is the coolest, driest month. Temperatures are pleasant and there is still very little smog. |
| February | Temperatures rise while the dry weather continues. Air pollution and fine particles increase, however. |
| March | It feels hot and stifling. Showers begin to arrive and can offer some relief from the heat. |
| April | This is the hottest month and coincides with the Songkran water festival. The heat is particularly strong in the afternoon. |
| May | The rainy season begins, with more afternoon showers. Temperatures fall, but humidity rises. |
| June | The rainy season brings short, heavy showers every day. |
| July | As in June, rain is frequent and conditions feel hot and humid. |
| August | Rain continues, with a risk of localised flooding in parts of the city. |
| September | This is the wettest month, with the highest risk of flooded roads. |
| October | Rain gradually eases. However, the Chao Phraya River can still rise after the preceding heavy rainfall. |
| November | Skies clear and conditions become more pleasant as the dry season approaches. |
| December | Low rainfall and pleasant weather make this a busy month in the peak tourist season. |