Climate averages 1991–2020
Belmopan weather
in December.
A warm, moderately wet month: the 11th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Belmopan: daytime highs average 26.5°C and nights cool to about 20.0°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 76 mm of rain on roughly 16 days, which makes December a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 07 min on an average December day.
The nearest other city in this atlas is Chetumal (149 km away). In December its highs average 27.1°C, 0.6°C warmer than Belmopan, with 55 mm of rain.
From December to January, average highs fall by 0.2°C to 26.3°C, and monthly rainfall falls from 76 mm to 68 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
Belmopan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.3°C19.6°C | 19.6°C | 68 | 14.6 | 11.211 h |
| February | 27.9°C20.3°C | 20.3°C | 38 | 10.7 | 11.612 h |
| March | 29.9°C21.2°C | 21.2°C | 38 | 9.5 | 12.012 h |
| April | 32.1°C22.9°C | 22.9°C | 39 | 8.4 | 12.513 h |
| May | 32.0°C23.8°C | 23.8°C | 95 | 16.1 | 12.913 h |
| June | 30.3°C24.0°C | 24.0°C | 162 | 24.8 | 13.113 h |
| July | 30.1°C23.6°C | 23.6°C | 126 | 24.0 | 13.113 h |
| August | 30.8°C23.7°C | 23.7°C | 126 | 23.7 | 12.713 h |
| September | 30.5°C23.5°C | 23.5°C | 150 | 24.9 | 12.212 h |
| October | 28.8°C22.5°C | 22.5°C | 169 | 22.1 | 11.812 h |
| November | 27.2°C20.8°C | 20.8°C | 121 | 17.1 | 11.311 h |
| December, selected | 26.5°C20.0°C | 20.0°C | 76 | 16.3 | 11.111 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
- Chetumal in DecemberMexico · 149 kmHigh 27.1°C · Low 21.2°C · 55 mm rain
- Puerto Barrios in DecemberGuatemala · 171 kmHigh 25.8°C · Low 21.2°C · 243 mm rain
- Puerto Cortez in DecemberHonduras · 182 kmHigh 25.9°C · Low 21.6°C · 212 mm rain
- Choloma in DecemberHonduras · 202 kmHigh 26.6°C · Low 21.0°C · 146 mm rain
- San Pedro Sula in DecemberHonduras · 210 kmHigh 26.2°C · Low 20.2°C · 146 mm rain
- Panzos in DecemberGuatemala · 227 kmHigh 25.8°C · Low 19.8°C · 141 mm rain
- El Progreso in DecemberHonduras · 230 kmHigh 26.4°C · Low 20.3°C · 148 mm rain
- Cobán in DecemberGuatemala · 262 kmHigh 20.2°C · Low 14.2°C · 167 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 Belmopan) is explained once on the Belmopan year overview and on the Sources, method and limits page.