Climate averages 1991–2020
Montego Bay weather
in December.
A hot, moderately wet 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 Montego Bay: daytime highs average 29.0°C and nights cool to about 22.9°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 50 mm of rain on roughly 11 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 03 min on an average December day.
The nearest other city in this atlas is Spanish Town (115 km away). In December its highs average 28.4°C, 0.6°C cooler than Montego Bay, with 30 mm of rain.
Among the 4 cities listed in Jamaica, Montego Bay ranks 1st of 4 for the warmest December highs and 4th of 4 for the driest December (rainfall, lowest first). The mean December high of those 4 cities is 28.6°C; Montego Bay is 0.4°C warmer than that mean.
From December to January, average highs fall by 0.1°C to 28.9°C, and monthly rainfall falls from 50 mm to 44 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
Montego Bay climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C22.1°C | 22.1°C | 44 | 11.4 | 11.211 h |
| February | 29.5°C21.9°C | 21.9°C | 41 | 11.5 | 11.512 h |
| March | 30.3°C22.2°C | 22.2°C | 58 | 12.7 | 12.012 h |
| April | 31.2°C23.1°C | 23.1°C | 93 | 16.3 | 12.613 h |
| May | 31.4°C24.1°C | 24.1°C | 220 | 23.8 | 13.013 h |
| June | 32.2°C25.0°C | 25.0°C | 148 | 21.8 | 13.213 h |
| July | 32.4°C25.1°C | 25.1°C | 138 | 23.3 | 13.113 h |
| August | 32.3°C25.3°C | 25.3°C | 171 | 26.1 | 12.813 h |
| September | 31.7°C25.1°C | 25.1°C | 205 | 25.9 | 12.312 h |
| October | 30.7°C24.7°C | 24.7°C | 182 | 24.7 | 11.712 h |
| November | 29.5°C23.8°C | 23.8°C | 91 | 16.4 | 11.311 h |
| December, selected | 29.0°C22.9°C | 22.9°C | 50 | 11.4 | 11.011 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
- Spanish Town in DecemberJamaica · 115 kmHigh 28.4°C · Low 22.8°C · 30 mm rain
- Portmore in DecemberJamaica · 122 kmHigh 28.4°C · Low 22.8°C · 30 mm rain
- Kingston in DecemberJamaica · 130 kmHigh 28.4°C · Low 22.0°C · 41 mm rain
- Manzanillo, Cuba in DecemberCuba · 224 kmHigh 29.9°C · Low 21.1°C · 23 mm rain
- Bayamo in DecemberCuba · 250 kmHigh 29.2°C · Low 19.8°C · 28 mm rain
- Contramaestre in DecemberCuba · 269 kmHigh 29.0°C · Low 20.2°C · 27 mm rain
- Palma Soriano in DecemberCuba · 280 kmHigh 28.7°C · Low 20.1°C · 23 mm rain
- Santiago de Cuba in DecemberCuba · 280 kmHigh 29.1°C · Low 22.1°C · 22 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 Montego Bay) is explained once on the Montego Bay year overview and on the Sources, method and limits page.