Climate averages 1991–2020
Chanthaburi weather
in December.
A hot, fairly dry month: the joint 5th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Chanthaburi: daytime highs average 30.0°C and nights cool to about 22.3°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 16 mm of rain on roughly 3 days, which makes December a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 24 min on an average December day.
The nearest other city in this atlas is Rayong (92 km away). In December its highs average 30.3°C, about as warm as Chanthaburi, with 17 mm of rain.
Among the 46 cities listed in Thailand, Chanthaburi ranks joint 27th of 46 for the warmest December highs and 37th of 46 for the driest December (rainfall, lowest first). The mean December high of those 46 cities is 29.6°C; Chanthaburi is 0.4°C warmer than that mean.
From December to January, average highs rise by 0.4°C to 30.4°C, and monthly rainfall rises from 16 mm to 29 mm.
The annual picture
December 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
Chanthaburi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.4°C22.2°C | 22.2°C | 29 | 6.2 | 11.511 h |
| February | 30.7°C23.2°C | 23.2°C | 33 | 8.2 | 11.712 h |
| March | 30.9°C24.6°C | 24.6°C | 85 | 15.1 | 12.112 h |
| April | 31.0°C25.4°C | 25.4°C | 122 | 18.8 | 12.412 h |
| May | 30.0°C25.5°C | 25.5°C | 320 | 28.2 | 12.713 h |
| June | 29.2°C25.3°C | 25.3°C | 384 | 28.4 | 12.913 h |
| July | 28.8°C25.0°C | 25.0°C | 369 | 29.6 | 12.813 h |
| August | 28.8°C24.9°C | 24.9°C | 328 | 29.2 | 12.513 h |
| September | 28.7°C24.5°C | 24.5°C | 363 | 28.8 | 12.212 h |
| October | 29.4°C24.0°C | 24.0°C | 238 | 23.0 | 11.912 h |
| November | 29.9°C23.4°C | 23.4°C | 46 | 7.9 | 11.612 h |
| December, selected | 30.0°C22.3°C | 22.3°C | 16 | 3.2 | 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
December in nearby cities
- Rayong in DecemberThailand · 92 kmHigh 30.3°C · Low 23.0°C · 17 mm rain
- Paoy Paet in DecemberCambodia · 127 kmHigh 30.1°C · Low 21.0°C · 5.8 mm rain
- Battambang in DecemberCambodia · 131 kmHigh 30.5°C · Low 21.5°C · 13 mm rain
- Pattaya in DecemberThailand · 137 kmHigh 30.4°C · Low 22.9°C · 14 mm rain
- Si Racha in DecemberThailand · 142 kmHigh 30.5°C · Low 22.4°C · 12 mm rain
- Laem Chabang in DecemberThailand · 143 kmHigh 29.9°C · Low 22.9°C · 14 mm rain
- Chon Buri in DecemberThailand · 147 kmHigh 30.8°C · Low 21.9°C · 12 mm rain
- Kabin Buri in DecemberThailand · 155 kmHigh 30.1°C · Low 20.4°C · 5.1 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 Chanthaburi) is explained once on the Chanthaburi year overview and on the Sources, method and limits page.