Climate averages 1991–2020
Si Maha Phot weather
in May.
A hot, very wet month: the joint 3rd warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Si Maha Phot: daytime highs average 32.4°C and nights cool to about 24.9°C. By daytime temperature it is the joint 3rd warmest of the 12 months.
Expect about 209 mm of rain on roughly 24 days, which makes May a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 46 min on an average May day.
The nearest other city in this atlas is Kabin Buri (22 km away). In May its highs average 32.5°C, about as warm as Si Maha Phot, with 174 mm of rain.
Among the 46 cities listed in Thailand, Si Maha Phot ranks 34th of 46 for the warmest May highs and 40th of 46 for the driest May (rainfall, lowest first). The mean May high of those 46 cities is 32.7°C; Si Maha Phot is 0.2°C cooler than that mean.
From May to June, average highs fall by 1.6°C to 30.9°C, and monthly rainfall rises from 209 mm to 267 mm.
The annual picture
May 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
Si Maha Phot climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.9°C20.4°C | 20.4°C | 9.8 | 2.2 | 11.411 h |
| February | 32.4°C21.7°C | 21.7°C | 14 | 3.0 | 11.712 h |
| March | 33.6°C23.6°C | 23.6°C | 41 | 8.5 | 12.012 h |
| April | 34.2°C24.8°C | 24.8°C | 70 | 13.2 | 12.412 h |
| May, selected | 32.4°C24.9°C | 24.9°C | 209 | 24.0 | 12.813 h |
| June | 30.9°C24.5°C | 24.5°C | 267 | 26.5 | 12.913 h |
| July | 30.3°C24.2°C | 24.2°C | 281 | 27.5 | 12.913 h |
| August | 30.1°C24.1°C | 24.1°C | 300 | 28.2 | 12.613 h |
| September | 29.9°C23.7°C | 23.7°C | 308 | 27.3 | 12.212 h |
| October | 29.9°C23.0°C | 23.0°C | 148 | 18.7 | 11.812 h |
| November | 30.5°C21.9°C | 21.9°C | 24 | 4.3 | 11.511 h |
| December | 30.2°C20.5°C | 20.5°C | 4.9 | 1.2 | 11.311 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
May in nearby cities
- Kabin Buri in MayThailand · 22 kmHigh 32.5°C · Low 24.9°C · 174 mm rain
- Nong Chok in MayThailand · 71 kmHigh 33.2°C · Low 25.8°C · 150 mm rain
- Lat Krabang in MayThailand · 83 kmHigh 33.1°C · Low 26.4°C · 150 mm rain
- Khlong Sam Wa in MayThailand · 84 kmHigh 33.2°C · Low 26.1°C · 150 mm rain
- Chon Buri in MayThailand · 88 kmHigh 32.5°C · Low 26.2°C · 145 mm rain
- Bueng Kum in MayThailand · 93 kmHigh 33.1°C · Low 26.4°C · 150 mm rain
- Sai Mai in MayThailand · 94 kmHigh 33.4°C · Low 26.2°C · 185 mm rain
- Ban Khlong Prawet in MayThailand · 94 kmHigh 33.1°C · Low 26.7°C · 150 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 Si Maha Phot) is explained once on the Si Maha Phot year overview and on the Sources, method and limits page.