Climate averages 1991–2020
Santo Domingo weather
in December.
A warm, fairly dry month: the 11th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Santo Domingo: daytime highs average 27.7°C and nights cool to about 21.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 39 mm of rain on roughly 11 days, which makes December a fairly dry month (the 4th 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 Santo Domingo Este (5 km away). In December its highs average 27.5°C, about as warm as Santo Domingo, with 42 mm of rain.
Among the 14 cities listed in the Dominican Republic, Santo Domingo ranks 7th of 14 for the warmest December highs and joint 7th of 14 for the driest December (rainfall, lowest first). The mean December high of those 14 cities is 27.7°C; Santo Domingo is 0.1°C warmer than that mean.
From December to January, average highs fall by 0.3°C to 27.5°C, and monthly rainfall falls from 39 mm to 32 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
Santo Domingo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.5°C20.4°C | 20.4°C | 32 | 11.8 | 11.211 h |
| February | 27.9°C20.4°C | 20.4°C | 30 | 10.5 | 11.512 h |
| March | 28.4°C20.7°C | 20.7°C | 37 | 11.9 | 12.012 h |
| April | 29.1°C21.6°C | 21.6°C | 62 | 15.2 | 12.613 h |
| May | 29.3°C22.5°C | 22.5°C | 120 | 21.3 | 13.013 h |
| June | 29.8°C23.1°C | 23.1°C | 107 | 21.6 | 13.213 h |
| July | 30.3°C23.4°C | 23.4°C | 108 | 21.1 | 13.113 h |
| August | 30.3°C23.6°C | 23.6°C | 129 | 21.3 | 12.813 h |
| September | 29.9°C23.4°C | 23.4°C | 120 | 21.0 | 12.312 h |
| October | 29.3°C23.0°C | 23.0°C | 115 | 21.5 | 11.712 h |
| November | 28.3°C22.2°C | 22.2°C | 75 | 15.9 | 11.311 h |
| December, selected | 27.7°C21.1°C | 21.1°C | 39 | 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
- Santo Domingo Este in DecemberDominican Republic · 5 kmHigh 27.5°C · Low 21.7°C · 42 mm rain
- Santo Domingo Oeste in DecemberDominican Republic · 12 kmHigh 27.6°C · Low 20.6°C · 39 mm rain
- San Cristóbal in DecemberDominican Republic · 23 kmHigh 27.9°C · Low 21.2°C · 39 mm rain
- San Pedro de Macorís in DecemberDominican Republic · 62 kmHigh 28.2°C · Low 23.4°C · 23 mm rain
- Bonao in DecemberDominican Republic · 76 kmHigh 26.8°C · Low 19.5°C · 73 mm rain
- La Romana in DecemberDominican Republic · 98 kmHigh 28.8°C · Low 22.6°C · 22 mm rain
- San Francisco de Macorís in DecemberDominican Republic · 99 kmHigh 27.6°C · Low 19.4°C · 44 mm rain
- La Vega in DecemberDominican Republic · 107 kmHigh 27.3°C · Low 19.3°C · 47 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 Santo Domingo) is explained once on the Santo Domingo year overview and on the Sources, method and limits page.
Santo Domingo Oeste and San Cristóbal lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.