Rayong monthly weather and climate
Rayong · Eastern Gulf of Thailand coast
Rayong's dry season runs from November through April, with many good days for spending time at the beach. The rainy season lasts from May through October. September is the wettest month, with rough seas and a risk of tropical storms. For a beach trip, consider rainfall and sea conditions along with 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
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 | 22~32°C (71.6~89.6°F) | 25 mm | 3 days | 74% | 7.5 hours | Calm |
| February | ++ Very good | 22~32°C (71.6~89.6°F) | 25 mm | 3 days | 74% | 7.5 hours | Calm |
| March | + Good | 26~33°C (78.8~91.4°F) | 65 mm | 6 days | 74% | 8 hours | Calm |
| April | + Good | 27~34°C (80.6~93.2°F) | 80 mm | 9 days | 77% | 7 hours | Calm |
| May | ± Average | 27~34°C (80.6~93.2°F) | 185 mm | 17 days | 78% | 5.5 hours | Moderate |
| June | - Not recommended | 27~33°C (80.6~91.4°F) | 240 mm | 18 days | 78% | 4 hours | Moderate |
| July | - Not recommended | 27~32°C (80.6~89.6°F) | 240 mm | 18 days | 77% | 4 hours | Moderate |
| August | - Not recommended | 26~32°C (78.8~89.6°F) | 220 mm | 18 days | 79% | 3.8 hours | Moderate |
| September | - Not recommended | 26~32°C (78.8~89.6°F) | 300 mm | 20 days | 82% | 3.7 hours | Rough |
| October | - Not recommended | 26~32°C (78.8~89.6°F) | 230 mm | 18 days | 82% | 4.5 hours | Rough |
| November | + Good | 25~32°C (77~89.6°F) | 55 mm | 8 days | 76% | 6 hours | Moderate |
| December | ++ Very good | 22~32°C (71.6~89.6°F) | 15 mm | 2 days | 70% | 7.5 hours | Calm |
| Month | Weather and travel advice |
|---|---|
| January | Cool, dry weather brings clear skies and low humidity, making this a good month to spend time at the beach. |
| February | The dry season continues with plenty of warm, sunny days. Seas are generally calm at this time of year. |
| March | Temperatures rise as the hot season approaches. This month has the most sunshine hours of the year, though occasional showers still occur. |
| April | Heat is at its most intense during the month of the Songkran festival. Afternoon thunderstorms are possible. |
| 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. Cloudy days and frequent afternoon showers are common. |
| 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 can affect beach plans. |
| October | Heavy rain eases as the rainy season draws to a close, but seas remain rough. |
| November | Rainfall drops quickly as the dry season approaches. Seas gradually become calmer. |
| December | This month has the least rain and lowest humidity. Clear weather coincides with the busy beach vacation season. |