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 has the heaviest rain and rough seas, with a risk of tropical storms. For a beach holiday, consider rainfall and sea conditions alongside the 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 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 | 22~32°C | 25 mm | 3 days | 74% | 7.5 hours | Calm |
| February | ++ Very good | 22~32°C | 25 mm | 3 days | 74% | 7.5 hours | Calm |
| March | + Good | 26~33°C | 65 mm | 6 days | 74% | 8 hours | Calm |
| April | + Good | 27~34°C | 80 mm | 9 days | 77% | 7 hours | Calm |
| May | ± Average | 27~34°C | 185 mm | 17 days | 78% | 5.5 hours | Moderate |
| June | - Not recommended | 27~33°C | 240 mm | 18 days | 78% | 4 hours | Moderate |
| July | - Not recommended | 27~32°C | 240 mm | 18 days | 77% | 4 hours | Moderate |
| August | - Not recommended | 26~32°C | 220 mm | 18 days | 79% | 3.8 hours | Moderate |
| September | - Not recommended | 26~32°C | 300 mm | 20 days | 82% | 3.7 hours | Rough |
| October | - Not recommended | 26~32°C | 230 mm | 18 days | 82% | 4.5 hours | Rough |
| November | + Good | 25~32°C | 55 mm | 8 days | 76% | 6 hours | Moderate |
| December | ++ Very good | 22~32°C | 15 mm | 2 days | 70% | 7.5 hours | Calm |
| Month | Weather and travel advice |
|---|---|
| January | Cooler, dry weather brings clear skies and low humidity, making this a good month to spend time on the beach. |
| February | The dry season continues, with many warm, sunny days. Seas are 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 the Songkran festival takes place this month. Thunderstorms are possible in the afternoon. |
| May | Rainfall increases quickly as the southwest monsoon begins. The Rayong Fruit Festival also takes place this month. |
| June | The rainy season is well underway, with many cloudy days and frequent afternoon showers. |
| July | The rainy season continues, with steady rainfall. |
| August | The monsoon strengthens, bringing heavy rain and high humidity. |
| September | This is the wettest month. Rough seas and the risk of tropical storms need to be considered when planning time at the beach. |
| October | Heavy rain begins to ease towards the end of the rainy season, but seas remain rough. |
| November | Rainfall drops quickly as the dry season approaches. Seas gradually become calmer. |
| December | Rainfall and humidity are at their lowest. Clear weather accompanies the beach holiday peak season. |