Santo Domingo, Dominican Republic Climate & Monthly Averages
The climate of Santo Domingo
Santo Domingo has one of the steadier climates in our dataset. Average highs move only 4°C across the whole year - from 67°F (20°C) in January to 74°F (23°C) in August - so the practical difference between seasons here is rainfall and daylight, not warmth.
Climate quick facts
- Hottest month: August - highs near 74°F (23°C)
- Coldest month: January - highs near 67°F (20°C)
- Decade extremes (2015-2024): 83°F (28°C) high · 43°F (6°C) low
- Wettest month: May (19 rainy days) · Sunniest: June (11.8 h sun/day)
- Climate type: subtropical highland
- Annual swing: 4°C between the average warmest and coolest month · day to night: 8°C
- Average humidity: 83%
Temperatures through the year
At its warmest, in August, Santo Domingo runs to 74°F (23°C) in the afternoon and back to 59°F (15°C) by dawn. January bottoms out at 67°F (20°C) in daylight, 53°F (11°C) after dark. Between the average August and the average January lie 4°C, a narrower spread than about 89% of the cities we track.
Rain, sun and snow
May is the wettest month at 5.7 inches (145 mm) over 19 days; December is the driest. Relative humidity averages 83% across the year, more humid than 94% of the 3496 cities in our dataset. June is the brightest month at 11.8 hours of sun a day, against an annual average of 10.6 - sunnier than roughly 85% of the cities we track. The gridded 2015-2024 daily record for this location tops out at 83°F (28°C) and bottoms at 43°F (6°C) - decade extremes, not all-time station records.
How Santo Domingo compares
- Rain or snow reaches the ground on 208 days a year - more wet days than 92% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 67° | 53° | 13 | 3.3 in | 9.9 h/day | 11.1 h | 41% | 84% |
| February | 67° | 53° | 15 | 3.1 in | 10.3 h/day | 11.5 h | 54% | 86% |
| March | 68° | 53° | 15 | 5.0 in | 10.6 h/day | 12.0 h | 48% | 83% |
| April | 70° | 56° | 20 | 5.6 in | 10.7 h/day | 12.6 h | 66% | 84% |
| May | 72° | 57° | 19 | 5.7 in | 11.0 h/day | 13.0 h | 61% | 81% |
| June | 74° | 58° | 16 | 3.4 in | 11.8 h/day | 13.3 h | 55% | 79% |
| July | 74° | 59° | 17 | 3.2 in | 11.7 h/day | 13.2 h | 56% | 81% |
| August | 74° | 59° | 18 | 4.8 in | 11.3 h/day | 12.8 h | 59% | 81% |
| September | 74° | 59° | 22 | 4.7 in | 10.4 h/day | 12.2 h | 73% | 83% |
| October | 72° | 58° | 20 | 4.0 in | 9.8 h/day | 11.7 h | 65% | 84% |
| November | 70° | 56° | 17 | 4.2 in | 9.8 h/day | 11.2 h | 57% | 87% |
| December | 68° | 54° | 15 | 2.9 in | 10.1 h/day | 11.0 h | 48% | 87% |
Santo Domingo month by month
Average high and low for each month, with the bar showing where it sits in Santo Domingo's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 13 days
- Sunshine
- 9.9 h
- Daylight
- 11.1 h
February
- Rain
- 15 days
- Sunshine
- 10.3 h
- Daylight
- 11.5 h
March
- Rain
- 15 days
- Sunshine
- 10.6 h
- Daylight
- 12.0 h
April
- Rain
- 20 days
- Sunshine
- 10.7 h
- Daylight
- 12.6 h
May
- Rain
- 19 days
- Sunshine
- 11.0 h
- Daylight
- 13.0 h
June
- Rain
- 16 days
- Sunshine
- 11.8 h
- Daylight
- 13.3 h
July
- Rain
- 17 days
- Sunshine
- 11.7 h
- Daylight
- 13.2 h
August
- Rain
- 18 days
- Sunshine
- 11.3 h
- Daylight
- 12.8 h
September
- Rain
- 22 days
- Sunshine
- 10.4 h
- Daylight
- 12.2 h
October
- Rain
- 20 days
- Sunshine
- 9.8 h
- Daylight
- 11.7 h
November
- Rain
- 17 days
- Sunshine
- 9.8 h
- Daylight
- 11.2 h
December
- Rain
- 15 days
- Sunshine
- 10.1 h
- Daylight
- 11.0 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Santo Domingo
Spring (March through May)
Spring is pleasantly warm here - highs near 70°F (21°C), nights near 55°F (13°C), and rain falls on around 54 of the 90 days. Daylight is generous - around 10.8 hours of sun a day.
Summer (June through August)
Summer in Santo Domingo brings comfortable warmth, with daytime highs averaging 74°F (23°C) and nights around 59°F (15°C); rain falls on around 52 of the 90 days. Daylight is generous - around 11.6 hours of sun a day.
Fall (September through November)
Fall in Santo Domingo brings comfortable warmth, with daytime highs averaging 72°F (22°C) and nights around 58°F (14°C); rain falls on around 59 of the 90 days. Daylight is generous - around 10.0 hours of sun a day.
Winter (December through February)
Through winter, Santo Domingo stays on the cool side of mild: 67°F (20°C) by day, 53°F (12°C) after dark, and rain falls on around 43 of the 90 days. Daylight is generous - around 10.1 hours of sun a day.
Climate questions, answered
How many rainy days does Santo Domingo get in a year?
How warm is Santo Domingo on average?
Is Santo Domingo hot in summer?
How cold does Santo Domingo get in winter?
Best time to visit Santo Domingo
December to March is the sweet spot for Santo Domingo - warm days, manageable rainfall and plenty of daylight line up. Expect 67°F (20°C) in the afternoon and around 14 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in December.
Pack for Santo Domingo with proper waterproofs rather than an umbrella - wet days are the norm here. Even in August, lows of 59°F (15°C) make an extra layer worth the space.
Santo Domingo temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.