Koh Chang monthly weather and climate
Koh Chang · Eastern Gulf of Thailand
Koh Chang's dry season runs from November through March. Rainfall rises sharply in May, with heavy rain continuing from June through September. Even with little rain in January and February, haze from Cambodia can make the sky look murky. If clear beach weather matters to you, consider air quality along with rainfall.
Before choosing your travel dates
The facts list February as the hottest month, while the monthly notes point to March and April. The facts also name only June as the wettest month, although the table shows 550 mm for each month from June through September. Keep these differences in mind when comparing months.
When are the dry and rainy seasons?
- Best time to visit
- Nov–Mar
- Dry season
- Nov–Mar
- Rainy season
- May–Oct
- Hottest month
- Feb (33°C)
- Wettest month
- Jun (550 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 | 20~31°C (68~87.8°F) | 20 mm | 3 days | 74% | 9 hours | Calm |
| February | ++ Very good | 21~33°C (69.8~91.4°F) | 50 mm | 5 days | 72% | 9 hours | Calm |
| March | + Good | 23~33°C (73.4~91.4°F) | 90 mm | 7 days | 74% | 9 hours | Calm |
| April | + Good | 24~33°C (75.2~91.4°F) | 120 mm | 9 days | 77% | 9 hours | Calm |
| May | - Not recommended | 24~31°C (75.2~87.8°F) | 350 mm | 20 days | 80% | 8 hours | Moderate |
| June | - Not recommended | 23~30°C (73.4~86°F) | 550 mm | 23 days | 82% | 7 hours | Rough |
| July | - Not recommended | 23~30°C (73.4~86°F) | 550 mm | 21 days | 82% | 7 hours | Rough |
| August | - Not recommended | 23~30°C (73.4~86°F) | 550 mm | 23 days | 83% | 7 hours | Rough |
| September | - Not recommended | 22~29°C (71.6~84.2°F) | 550 mm | 22 days | 85% | 6 hours | Rough |
| October | - Not recommended | 23~30°C (73.4~86°F) | 300 mm | 20 days | 83% | 7 hours | Moderate |
| November | ++ Very good | 21~30°C (69.8~86°F) | 50 mm | 5 days | 78% | 9 hours | Moderate |
| December | ++ Very good | 20~30°C (68~86°F) | 30 mm | 3 days | 72% | 9 hours | Calm |
| Month | Weather and travel advice |
|---|---|
| January | This is the driest month, with relatively cool, sunny weather. Some haze from forest fires in Cambodia is possible. |
| February | The weather is clear and dry, but air pollution drifting from Cambodia can make the sky hazy. |
| March | Warm and mostly dry, this is one of the months with the most sunshine hours. |
| April | The heat remains intense, as in March. Nighttime thunderstorms become more frequent. |
| May | The rainy season begins around midmonth, and rainfall rises quickly. |
| June | Rainy-season weather continues. Showers mainly fall at night, while afternoons are generally clear. |
| July | This is one of the wettest months. Rain falls regularly, but there are still sunny spells during the day. |
| August | Rainfall is heavy, as in July. There are still sunny breaks between showers. |
| September | The likelihood of storms and flooding is at its highest. Heavy rain may change your travel plans. |
| October | The rainy season is drawing to a close, but rainfall varies considerably from year to year. |
| November | Northerly winds arrive as the dry season approaches. This is one of the better months to visit. |
| December | Days are dry and sunny. Northerly winds bring cooler evenings. |