Climate averages 1991–2020
Guantánamo weather
in December.
A hot, fairly dry month: the 11th 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 Guantánamo: daytime highs average 29.5°C and nights cool to about 21.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 26 mm of rain on roughly 5 days, which makes December a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 56 min on an average December day.
The nearest other city in this atlas is Moa (63 km away). In December its highs average 26.9°C, 2.6°C cooler than Guantánamo, with 85 mm of rain.
Among the 21 cities listed in Cuba, Guantánamo ranks 2nd of 21 for the warmest December highs and joint 13th of 21 for the driest December (rainfall, lowest first). The mean December high of those 21 cities is 27.7°C; Guantánamo is 1.8°C warmer than that mean.
From December to January, average highs fall by 0.1°C to 29.4°C, and monthly rainfall falls from 26 mm to 16 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
Guantánamo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C20.4°C | 20.4°C | 16 | 4.2 | 11.111 h |
| February | 30.0°C20.3°C | 20.3°C | 16 | 3.6 | 11.511 h |
| March | 30.3°C20.6°C | 20.6°C | 34 | 6.3 | 12.012 h |
| April | 31.0°C21.7°C | 21.7°C | 58 | 9.7 | 12.613 h |
| May | 31.1°C22.8°C | 22.8°C | 139 | 17.2 | 13.113 h |
| June | 32.3°C24.0°C | 24.0°C | 99 | 16.6 | 13.313 h |
| July | 33.8°C24.7°C | 24.7°C | 77 | 16.7 | 13.213 h |
| August | 33.6°C24.7°C | 24.7°C | 98 | 18.4 | 12.813 h |
| September | 32.2°C24.1°C | 24.1°C | 137 | 21.5 | 12.312 h |
| October | 30.8°C23.4°C | 23.4°C | 117 | 18.7 | 11.712 h |
| November | 30.0°C22.2°C | 22.2°C | 58 | 10.0 | 11.211 h |
| December, selected | 29.5°C21.1°C | 21.1°C | 26 | 5.2 | 10.911 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
- Moa in DecemberCuba · 63 kmHigh 26.9°C · Low 23.0°C · 85 mm rain
- Santiago de Cuba in DecemberCuba · 65 kmHigh 29.1°C · Low 22.1°C · 22 mm rain
- Palma Soriano in DecemberCuba · 82 kmHigh 28.7°C · Low 20.1°C · 23 mm rain
- Contramaestre in DecemberCuba · 109 kmHigh 29.0°C · Low 20.2°C · 27 mm rain
- Holguín in DecemberCuba · 137 kmHigh 27.5°C · Low 21.1°C · 38 mm rain
- Bayamo in DecemberCuba · 152 kmHigh 29.2°C · Low 19.8°C · 28 mm rain
- Puerto Padre in DecemberCuba · 186 kmHigh 27.2°C · Low 22.4°C · 41 mm rain
- Manzanillo, Cuba in DecemberCuba · 200 kmHigh 29.9°C · Low 21.1°C · 23 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 Guantánamo) is explained once on the Guantánamo year overview and on the Sources, method and limits page.