Climate averages 1991–2020
Kampong Chhnang weather
in December.
A hot, fairly dry month: the 10th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Kampong Chhnang: daytime highs average 30.5°C and nights cool to about 22.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 22 mm of rain on roughly 3 days, which makes December a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 25 min on an average December day.
The nearest other city in this atlas is Phnom Penh (81 km away). In December its highs average 30.5°C, about as warm as Kampong Chhnang, with 27 mm of rain.
Among the 8 cities listed in Cambodia, Kampong Chhnang ranks joint 1st of 8 for the warmest December highs and 4th of 8 for the driest December (rainfall, lowest first). The mean December high of those 8 cities is 30.3°C; Kampong Chhnang is 0.3°C warmer than that mean.
From December to January, average highs rise by 1.4°C to 31.9°C, and monthly rainfall falls from 22 mm to 10 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
Kampong Chhnang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.9°C22.5°C | 22.5°C | 10 | 1.9 | 11.511 h |
| February | 33.5°C23.9°C | 23.9°C | 8.5 | 1.8 | 11.712 h |
| March | 34.8°C25.6°C | 25.6°C | 43 | 6.3 | 12.112 h |
| April | 34.9°C26.1°C | 26.1°C | 86 | 14.1 | 12.412 h |
| May | 33.6°C25.9°C | 25.9°C | 151 | 22.5 | 12.713 h |
| June | 32.2°C25.3°C | 25.3°C | 158 | 23.5 | 12.813 h |
| July | 31.7°C24.9°C | 24.9°C | 166 | 25.6 | 12.813 h |
| August | 31.5°C24.7°C | 24.7°C | 186 | 26.7 | 12.513 h |
| September | 30.8°C24.5°C | 24.5°C | 234 | 26.6 | 12.212 h |
| October | 30.3°C24.0°C | 24.0°C | 209 | 22.8 | 11.912 h |
| November | 30.4°C23.3°C | 23.3°C | 71 | 9.8 | 11.612 h |
| December, selected | 30.5°C22.4°C | 22.4°C | 22 | 3.4 | 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
- Phnom Penh in DecemberCambodia · 81 kmHigh 30.5°C · Low 22.7°C · 27 mm rain
- Dangkao in DecemberCambodia · 86 kmHigh 30.5°C · Low 22.8°C · 27 mm rain
- Takeo in DecemberCambodia · 141 kmHigh 30.4°C · Low 22.7°C · 36 mm rain
- Siem Reap in DecemberCambodia · 151 kmHigh 30.1°C · Low 21.7°C · 16 mm rain
- Tân Châu in DecemberVietnam · 173 kmHigh 30.4°C · Low 22.7°C · 48 mm rain
- Hồng Ngự in DecemberVietnam · 178 kmHigh 30.4°C · Low 22.6°C · 48 mm rain
- Châu Đốc in DecemberVietnam · 179 kmHigh 30.2°C · Low 22.6°C · 47 mm rain
- Battambang in DecemberCambodia · 185 kmHigh 30.5°C · Low 21.5°C · 13 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 Kampong Chhnang) is explained once on the Kampong Chhnang year overview and on the Sources, method and limits page.