Climate averages 1991–2020
Rayong weather
in April.
A hot, wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Rayong: daytime highs average 31.4°C and nights cool to about 26.2°C. By daytime temperature it is the warmest month of the year.
Expect about 133 mm of rain on roughly 19 days, which makes April a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average April day.
The nearest other city in this atlas is Pattaya (49 km away). In April its highs average 32.3°C, 0.9°C warmer than Rayong, with 90 mm of rain.
Among the 46 cities listed in Thailand, Rayong ranks 42nd of 46 for the warmest April highs and 45th of 46 for the driest April (rainfall, lowest first). The mean April high of those 46 cities is 33.9°C; Rayong is 2.6°C cooler than that mean.
From April to May, average highs fall by 0.7°C to 30.7°C, and monthly rainfall rises from 133 mm to 220 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rayong climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.4°C22.9°C | 22.9°C | 28 | 5.9 | 11.511 h |
| February | 30.7°C23.9°C | 23.9°C | 32 | 6.9 | 11.712 h |
| March | 31.0°C25.3°C | 25.3°C | 81 | 14.2 | 12.112 h |
| April, selected | 31.4°C26.2°C | 26.2°C | 133 | 18.9 | 12.412 h |
| May | 30.7°C26.2°C | 26.2°C | 220 | 24.9 | 12.713 h |
| June | 30.0°C26.1°C | 26.1°C | 210 | 24.5 | 12.913 h |
| July | 29.7°C25.9°C | 25.9°C | 206 | 24.9 | 12.813 h |
| August | 29.6°C25.7°C | 25.7°C | 196 | 24.9 | 12.513 h |
| September | 29.4°C25.1°C | 25.1°C | 300 | 26.4 | 12.212 h |
| October | 29.5°C24.4°C | 24.4°C | 256 | 23.2 | 11.912 h |
| November | 30.2°C24.0°C | 24.0°C | 59 | 8.5 | 11.612 h |
| December | 30.3°C23.0°C | 23.0°C | 17 | 3.3 | 11.411 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Pattaya in AprilThailand · 49 kmHigh 32.3°C · Low 26.7°C · 90 mm rain
- Laem Chabang in AprilThailand · 61 kmHigh 32.1°C · Low 26.7°C · 90 mm rain
- Si Racha in AprilThailand · 65 kmHigh 33.1°C · Low 26.4°C · 90 mm rain
- Chon Buri in AprilThailand · 81 kmHigh 33.8°C · Low 26.1°C · 90 mm rain
- Chanthaburi in AprilThailand · 92 kmHigh 31.0°C · Low 25.4°C · 122 mm rain
- Samut Prakan in AprilThailand · 125 kmHigh 33.5°C · Low 27.1°C · 67 mm rain
- Lat Krabang in AprilThailand · 127 kmHigh 34.3°C · Low 26.4°C · 81 mm rain
- Ban Khlong Prawet in AprilThailand · 131 kmHigh 34.1°C · Low 26.7°C · 81 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rayong) is explained once on the Rayong year overview and on the Sources, method and limits page.