Phuket: monthly weather and climate
Phuket · Andaman Sea island
Phuket's dry season runs from December to April. Seas are generally calm from January to March, making it a good period for a beach holiday or diving. From May, the southwest monsoon brings more rain and rougher waves. For beach stays and boat trips, consider the changing waves as well as rainfall.
50 mmJan24 mmFeb81 mmMar135 mmApr237 mmMay249 mmJun240 mmJul309 mmAug350 mmSep336 mmOct178 mmNov82 mmDec
Before choosing your travel dates
The basic facts list February as the hottest month, while the monthly notes point to April. These descriptions differ, so neither month can be identified conclusively as the hottest from this information.
When are the dry and rainy seasons?
- Best time to visit
- Dec–Mar
- Dry season
- Dec–Apr
- Rainy season
- May–Nov
- Hottest month
- Feb (34°C)
- Wettest month
- Sep (350 mm)
Monthly weather and climate
Compare the table below to see which months are hotter or wetter. These are historical climate averages; they do not provide a forecast for your travel dates or tell you whether swimming will be permitted or safe.
| Month | Travel rating | Temperature | Rainfall | Rainy days | Humidity | Sunshine hours | Sea conditions |
|---|---|---|---|---|---|---|---|
| January | ++ Very good | 25~33°C | 50 mm | 4 days | 76% | 9 hours | Calm |
| February | ++ Very good | 25~34°C | 24 mm | 2 days | 74% | 8.7 hours | Calm |
| March | + Good | 26~34°C | 81 mm | 6 days | 76% | 8.9 hours | Calm |
| April | ± Average | 26~34°C | 135 mm | 10 days | 79% | 8 hours | Moderate |
| May | - Not recommended | 26~33°C | 237 mm | 16 days | 81% | 5.1 hours | Rough |
| June | - Not recommended | 26~33°C | 249 mm | 16 days | 82% | 3.9 hours | Rough |
| July | - Not recommended | 26~32°C | 240 mm | 16 days | 82% | 3.9 hours | Rough |
| August | - Not recommended | 26~32°C | 309 mm | 17 days | 82% | 3.8 hours | Rough |
| September | - Not recommended | 25~32°C | 350 mm | 19 days | 84% | 3.6 hours | Rough |
| October | - Not recommended | 25~32°C | 336 mm | 19 days | 85% | 5.8 hours | Rough |
| November | ± Average | 25~32°C | 178 mm | 13 days | 83% | 7.3 hours | Moderate |
| December | + Good | 25~32°C | 82 mm | 8 days | 79% | 8.4 hours | Calm |
| Month | Weather and travel advice |
|---|---|
| January | The weather is dry and clear, with calm, clear seas. The peak tourist season is in full swing. |
| February | This is the driest month, with good conditions for diving and beach holidays. |
| March | The weather is warm and mostly dry, with calm seas. |
| April | Heat is intense, and the Songkran festival takes place this month. Monsoon-related showers begin. |
| May | The southwest monsoon begins, bringing a sharp increase in rain and rougher seas. |
| June | As the rainy season sets in, waves suitable for surfing develop on the west coast. Good surfing waves do not mean conditions are safe for swimming. |
| July | Rain and wind strengthen. Red flags may be displayed on west-coast beaches during this month. |
| August | This is the windiest month, with heavy rain and rough waves on the west coast. |
| September | The rainy season peaks, with the heaviest rain and extensive cloud cover. |
| October | Rain continues, and humidity is at its highest for the year. |
| November | Rain decreases as the dry season approaches. |
| December | Dry-season weather returns and seas become calmer. The peak tourist season begins. |