Rayong monthly weather and climate
Rayong · Eastern Gulf coast
Rayong's dry season runs from November to April, with many days suited to spending time on the beach. The rainy season lasts from May to October. September is the wettest month, with rough seas and a risk of tropical storms. For a beach trip, consider rainfall and sea conditions alongside temperature.
25 mmJan25 mmFeb65 mmMar80 mmApr185 mmMay240 mmJun240 mmJul220 mmAug300 mmSep230 mmOct55 mmNov15 mmDec
When are the dry and rainy seasons?
- Best time to visit
- Nov–Apr
- Dry season
- Nov–Apr
- Rainy season
- May–Oct
- Hottest month
- Apr (34°C)
- Wettest month
- Sep (300 mm)
Monthly weather and climate
Compare hotter and wetter months in the table below. These are historical climate averages: they are not a forecast for your travel dates and do not tell you whether swimming will be possible.
| Month | Travel rating | Temperature | Rainfall | Rainy days | Humidity | Sunshine | Sea conditions |
|---|---|---|---|---|---|---|---|
| January | ++ Very good | 22~32°C | 25 mm | 3 d | 74% | 7.5 h | Calm |
| February | ++ Very good | 22~32°C | 25 mm | 3 d | 74% | 7.5 h | Calm |
| March | + Good | 26~33°C | 65 mm | 6 d | 74% | 8 h | Calm |
| April | + Good | 27~34°C | 80 mm | 9 d | 77% | 7 h | Calm |
| May | ± Average | 27~34°C | 185 mm | 17 d | 78% | 5.5 h | Moderate |
| June | - Not recommended | 27~33°C | 240 mm | 18 d | 78% | 4 h | Moderate |
| July | - Not recommended | 27~32°C | 240 mm | 18 d | 77% | 4 h | Moderate |
| August | - Not recommended | 26~32°C | 220 mm | 18 d | 79% | 3.8 h | Moderate |
| September | - Not recommended | 26~32°C | 300 mm | 20 d | 82% | 3.7 h | Rough |
| October | - Not recommended | 26~32°C | 230 mm | 18 d | 82% | 4.5 h | Rough |
| November | + Good | 25~32°C | 55 mm | 8 d | 76% | 6 h | Moderate |
| December | ++ Very good | 22~32°C | 15 mm | 2 d | 70% | 7.5 h | Calm |
| Month | Weather and travel advice |
|---|---|
| January | Cooler, dry weather brings clear skies and low humidity, making this a good month for time on the beach. |
| February | The dry season continues with many warm, sunny days. The sea is generally calm. |
| March | Temperatures rise as the hot season approaches. This month has the most sunshine hours of the year, though occasional showers are possible. |
| April | The heat is at its strongest, and Songkran takes place this month. Thunderstorms are possible in the afternoon. |
| May | Rainfall increases rapidly as the southwest monsoon begins. This is also the month of the Rayong Fruit Festival. |
| June | The rainy season is firmly established, with frequent cloudy days and afternoon showers. |
| July | The rainy season continues with regular rainfall. |
| August | The monsoon strengthens, bringing heavy rain and high humidity. |
| September | This is the wettest month. Rough seas and a risk of tropical storms need to be considered when planning beach activities. |
| October | Heavy rain eases towards the end of the rainy season, but the sea remains rough. |
| November | Rainfall drops quickly as the dry season approaches. The sea gradually becomes calmer. |
| December | This month has the least rain and lowest humidity. Clear weather accompanies the beach tourism high season. |