Climate averages 1991–2020
Basseterre weather
in December.
A warm, moderately wet month: the 9th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Basseterre: daytime highs average 26.4°C and nights cool to about 24.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 54 mm of rain on roughly 13 days, which makes December a moderately wet month (the 6th 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 Saint John’s (96 km away). In December its highs average 26.7°C, about as warm as Basseterre, with 57 mm of rain.
From December to January, average highs fall by 0.6°C to 25.9°C, and monthly rainfall falls from 54 mm to 30 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
Basseterre climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.9°C24.1°C | 24.1°C | 30 | 10.3 | 11.211 h |
| February | 25.8°C23.9°C | 23.9°C | 21 | 7.4 | 11.612 h |
| March | 26.1°C24.0°C | 24.0°C | 20 | 6.8 | 12.012 h |
| April | 26.8°C24.5°C | 24.5°C | 33 | 8.5 | 12.513 h |
| May | 27.5°C25.4°C | 25.4°C | 61 | 11.9 | 12.913 h |
| June | 28.2°C26.0°C | 26.0°C | 47 | 10.9 | 13.113 h |
| July | 28.3°C26.1°C | 26.1°C | 74 | 14.5 | 13.113 h |
| August | 28.5°C26.3°C | 26.3°C | 91 | 17.0 | 12.713 h |
| September | 28.5°C26.3°C | 26.3°C | 118 | 17.6 | 12.212 h |
| October | 28.1°C26.0°C | 26.0°C | 125 | 17.8 | 11.812 h |
| November | 27.3°C25.4°C | 25.4°C | 105 | 15.8 | 11.311 h |
| December, selected | 26.4°C24.7°C | 24.7°C | 54 | 13.2 | 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
- Saint John’s in DecemberAntigua and Barbuda · 96 kmHigh 26.7°C · Low 24.8°C · 57 mm rain
- Basse-Terre in DecemberGuadeloupe · 179 kmHigh 27.8°C · Low 25.0°C · 40 mm rain
- Roseau in DecemberDominica · 264 kmHigh 26.5°C · Low 24.8°C · 48 mm rain
- Fort-de-France in DecemberMartinique · 347 kmHigh 27.3°C · Low 24.9°C · 54 mm rain
- Carolina in DecemberPuerto Rico · 363 kmHigh 27.9°C · Low 22.4°C · 48 mm rain
- Caguas in DecemberPuerto Rico · 367 kmHigh 27.4°C · Low 22.4°C · 58 mm rain
- San Juan in DecemberPuerto Rico · 381 kmHigh 28.1°C · Low 22.1°C · 48 mm rain
- Bayamón in DecemberPuerto Rico · 383 kmHigh 28.1°C · Low 22.2°C · 45 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 Basseterre) is explained once on the Basseterre year overview and on the Sources, method and limits page.