Climate averages 1991–2020
Chon Buri weather
in May.
A hot, wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Chon Buri: daytime highs average 32.5°C and nights cool to about 26.2°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 145 mm of rain on roughly 21 days, which makes May a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 44 min on an average May day.
The nearest other city in this atlas is Si Racha (22 km away). In May its highs average 32.1°C, about as warm as Chon Buri, with 145 mm of rain.
Among the 46 cities listed in Thailand, Chon Buri ranks joint 31st of 46 for the warmest May highs and joint 21st of 46 for the driest May (rainfall, lowest first). The mean May high of those 46 cities is 32.7°C; Chon Buri is 0.1°C cooler than that mean.
From May to June, average highs fall by 1.0°C to 31.6°C, and monthly rainfall falls from 145 mm to 123 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
Chon Buri climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.4°C22.1°C | 22.1°C | 22 | 4.7 | 11.411 h |
| February | 32.4°C23.4°C | 23.4°C | 23 | 5.1 | 11.712 h |
| March | 33.3°C25.1°C | 25.1°C | 58 | 10.6 | 12.012 h |
| April | 33.8°C26.1°C | 26.1°C | 90 | 14.1 | 12.412 h |
| May, selected | 32.5°C26.2°C | 26.2°C | 145 | 21.2 | 12.713 h |
| June | 31.6°C26.1°C | 26.1°C | 123 | 20.9 | 12.913 h |
| July | 31.0°C25.8°C | 25.8°C | 133 | 22.5 | 12.813 h |
| August | 30.8°C25.6°C | 25.6°C | 136 | 23.3 | 12.613 h |
| September | 30.4°C25.0°C | 25.0°C | 232 | 25.1 | 12.212 h |
| October | 30.2°C24.0°C | 24.0°C | 195 | 21.7 | 11.812 h |
| November | 30.8°C23.2°C | 23.2°C | 43 | 7.1 | 11.512 h |
| December | 30.8°C21.9°C | 21.9°C | 12 | 2.6 | 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
May in nearby cities
- Si Racha in MayThailand · 22 kmHigh 32.1°C · Low 26.6°C · 145 mm rain
- Laem Chabang in MayThailand · 32 kmHigh 31.3°C · Low 26.8°C · 152 mm rain
- Lat Krabang in MayThailand · 45 kmHigh 33.1°C · Low 26.4°C · 150 mm rain
- Pattaya in MayThailand · 49 kmHigh 31.5°C · Low 26.8°C · 152 mm rain
- Samut Prakan in MayThailand · 49 kmHigh 32.6°C · Low 27.0°C · 124 mm rain
- Ban Khlong Prawet in MayThailand · 51 kmHigh 33.1°C · Low 26.7°C · 150 mm rain
- Nong Chok in MayThailand · 56 kmHigh 33.2°C · Low 25.8°C · 150 mm rain
- Bueng Kum in MayThailand · 58 kmHigh 33.1°C · Low 26.4°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 Chon Buri) is explained once on the Chon Buri year overview and on the Sources, method and limits page.
Si Racha lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.