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Climate · Río San Juan

Río San Juan in December

Warm and wet, as the days hold steady.

Typical weather, averaged over 30 years

December in Río San Juan is warm: highs near 83°F, lows near 71°F. Rain falls on about five days a week, and daylight holds at about 10 hours 58 minutes.December in Río San Juan is warm: highs near 28°C, lows near 22°C. Rain falls on about five days a week, and daylight holds at about 10 hours 58 minutes.

High
83°F28°Caverage
Low
71°F22°Caverage
Wet days
5a week · 71% of days
Daylight
10h 58mon average

Is December a good time to visit Río San Juan?

Yes. December is one of Río San Juan's best months (December to March).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 83°F in December, against 83°F to 90°F through the year.Highs near 28°C in December, against 28°C to 32°C through the year.

Chance of a wet day

71% of days in December, against 60% to 87% through the year.

Cloud cover

35% cover in December, against 27% to 69% through the year.

Daylight

10h 58m in December, against 10h 58m to 13h 18m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November85°29°low 73°low 23°6 wet days a weekRain on about six days a week.
  2. December83°28°low 71°low 22°5 wet days a weekRain on about five days a week.
  3. January83°28°low 70°low 21°5 wet days a weekRain on about five days a week.

Where Río San Juan sits, in December

America/Santo Domingo
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
7:07 AMsets 6:04 PM
Above the sea
20 mlow-lying
Latitude
19.6°Nnorthern hemisphere
Nearest of ours
Santo Domingo132 km south

The land around Río San Juan, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Dominican Republic in December

high · low · wet days
See December on the planning mapThe whole year in Río San Juan

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Río San Juan. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (20 m) against the climate model's (93 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (20 m) against the climate model's (93 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.