Climate averages 1991–2020
Surat Thani weather
in April.
A hot, wet month: the warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Surat Thani: daytime highs average 33.4°C and nights cool to about 24.9°C. By daytime temperature it is the warmest month of the year.
Expect about 114 mm of rain on roughly 14 days, which makes April a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average April day.
The nearest other city in this atlas is Nakhon Si Thammarat (105 km away). In April its highs average 31.2°C, 2.2°C cooler than Surat Thani, with 120 mm of rain.
Among the 46 cities listed in Thailand, Surat Thani ranks 36th of 46 for the warmest April highs and 39th of 46 for the driest April (rainfall, lowest first). The mean April high of those 46 cities is 33.9°C; Surat Thani is 0.5°C cooler than that mean.
From April to May, average highs fall by 1.3°C to 32.1°C, and monthly rainfall rises from 114 mm to 124 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
Surat Thani climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C22.6°C | 22.6°C | 68 | 9.5 | 11.712 h |
| February | 31.8°C22.9°C | 22.9°C | 32 | 4.8 | 11.812 h |
| March | 33.3°C24.0°C | 24.0°C | 92 | 9.1 | 12.112 h |
| April, selected | 33.4°C24.9°C | 24.9°C | 114 | 14.4 | 12.312 h |
| May | 32.1°C24.9°C | 24.9°C | 124 | 22.1 | 12.513 h |
| June | 31.3°C24.6°C | 24.6°C | 95 | 18.6 | 12.613 h |
| July | 31.1°C24.4°C | 24.4°C | 89 | 18.4 | 12.613 h |
| August | 30.9°C24.3°C | 24.3°C | 108 | 19.7 | 12.412 h |
| September | 30.2°C23.9°C | 23.9°C | 154 | 23.6 | 12.212 h |
| October | 29.2°C23.6°C | 23.6°C | 268 | 27.3 | 11.912 h |
| November | 28.6°C23.5°C | 23.5°C | 267 | 23.5 | 11.712 h |
| December | 28.4°C23.1°C | 23.1°C | 149 | 15.7 | 11.612 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
- Nakhon Si Thammarat in AprilThailand · 105 kmHigh 31.2°C · Low 24.5°C · 120 mm rain
- Phuket in AprilThailand · 173 kmHigh 29.4°C · Low 26.7°C · 125 mm rain
- Ban Mai in AprilThailand · 253 kmHigh 30.2°C · Low 26.0°C · 112 mm rain
- Hat Yai in AprilThailand · 268 kmHigh 31.7°C · Low 24.7°C · 136 mm rain
- Alor Setar in AprilMalaysia · 354 kmHigh 31.3°C · Low 24.8°C · 193 mm rain
- Yala in AprilThailand · 360 kmHigh 33.0°C · Low 23.7°C · 124 mm rain
- Pendang in AprilMalaysia · 372 kmHigh 31.3°C · Low 24.3°C · 220 mm rain
- Myeik in AprilMyanmar · 376 kmHigh 32.3°C · Low 25.1°C · 153 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 Surat Thani) is explained once on the Surat Thani year overview and on the Sources, method and limits page.