Climate · Dominican Republic

Río San Juan

Hot and wet from June to October; warm and wet from December to March.

Typical weather, averaged over 30 years19.6°N20 m above the sea
  1. Jan83°28°70°21°Rain on about five days a week.
  2. Feb83°28°70°21°Rain on about five days a week.
  3. Mar84°29°70°21°Rain on about four days a week.
  4. Apr85°29°71°22°Rain on about five days a week.
  5. May87°31°73°23°Rain on about five days a week.
  6. Jun89°32°75°24°Rain on about five days a week.
  7. Jul89°32°75°24°Rain on about six days a week.
  8. Aug89°32°76°24°Rain on about six days a week.
  9. Sep90°32°75°24°Rain on about six days a week.
  10. Oct89°32°75°24°Rain on about six days a week.
  11. Nov85°29°73°23°Rain on about six days a week.
  12. Dec83°28°71°22°Rain on about five days a week.
Each month: its typical high and low, and dots for wet days a week. Tap a month to open it.The best months

The hot season runs from June to October, with highs near 89°F and nights near 75°F. From December to March, highs are nearer 83°F. Rain comes in two spells, in May and from July to November. February to March is the driest stretch, with rain on about four days a week. Daylight runs from about 11 hours in December to 13½ hours in June.The hot season runs from June to October, with highs near 32°C and nights near 24°C. From December to March, highs are nearer 28°C. Rain comes in two spells, in May and from July to November. February to March is the driest stretch, with rain on about four days a week. Daylight runs from about 11 hours in December to 13½ hours in June.

Where Río San Juan sits

America/Santo Domingo

this place
typical high in Januarytypical high in Februarytypical high in Marchtypical high in Apriltypical high in Maytypical high in Junetypical high in Julytypical high in Augusttypical high in Septembertypical high in Octobertypical high in Novembertypical high in December 40°F4°C95°F35°C
Latitude
19.6°Nnorthern hemisphere
Above the sea
20 mlow-lying
Sunrise, mid-JanuarySunrise, mid-FebruarySunrise, mid-MarchSunrise, mid-AprilSunrise, mid-MaySunrise, mid-JuneSunrise, mid-JulySunrise, mid-AugustSunrise, mid-SeptemberSunrise, mid-OctoberSunrise, mid-NovemberSunrise, mid-December
7:17 AM7:10 AM6:50 AM6:23 AM6:05 AM6:01 AM6:10 AM6:21 AM6:27 AM6:34 AM6:49 AM7:07 AMsets 6:21 PMsets 6:39 PMsets 6:50 PMsets 6:58 PMsets 7:08 PMsets 7:20 PMsets 7:23 PMsets 7:10 PMsets 6:44 PMsets 6:18 PMsets 6:02 PMsets 6:04 PM
Nearest of ours
Santo Domingo132 km south

The land around Río San Juan, shaded by its typical high in January, the planning map's own layer.The land around Río San Juan, shaded by its typical high in February, the planning map's own layer.The land around Río San Juan, shaded by its typical high in March, the planning map's own layer.The land around Río San Juan, shaded by its typical high in April, the planning map's own layer.The land around Río San Juan, shaded by its typical high in May, the planning map's own layer.The land around Río San Juan, shaded by its typical high in June, the planning map's own layer.The land around Río San Juan, shaded by its typical high in July, the planning map's own layer.The land around Río San Juan, shaded by its typical high in August, the planning map's own layer.The land around Río San Juan, shaded by its typical high in September, the planning map's own layer.The land around Río San Juan, shaded by its typical high in October, the planning map's own layer.The land around Río San Juan, shaded by its typical high in November, the planning map's own layer.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.

Through the year

week by week

Temperature

Highs from 83°F in December and January to 90°F in September.Highs from 28°C in December and January to 32°C in September.

Chance of a wet day

Wettest in August (87% of days), driest in March (60%).

Cloud cover

Clearest in March (27% cover), cloudiest in June (69%).

Daylight

From 10h 58m in December to 13h 18m in June.

Week by week, lightly smoothed. Shading marks the seasons; the olive line, the best months. Hover or tap a week for its figures.

Month by month

°F°C

Río San Juan, month by month: the typical high and low, wet days a week, cloud cover and daylight.
MonthTypical low to highWet days a weekCloudDaylight
JanuaryCool seasonAt its best
70°21°83°28°
5 days28%11h 05m
FebruaryCool seasonAt its best
70°21°83°28°
5 days28%11h 28m
MarchCool seasonAt its best
70°21°84°29°
4 days27%12h 00m
April
71°22°85°29°
5 days36%12h 35m
May
73°23°87°31°
5 days59%13h 03m
JuneHot season
75°24°89°32°
5 days69%13h 18m
JulyHot season
75°24°89°32°
6 days63%13h 11m
AugustHot season
76°24°89°32°
6 days63%12h 46m
SeptemberHot season
75°24°90°32°
6 days67%12h 13m
OctoberHot season
75°24°89°32°
6 days67%11h 39m
November
73°23°85°29°
6 days53%11h 11m
DecemberCool seasonAt its best
71°22°83°28°
5 days35%10h 58m

When is the best time to visit Río San Juan?


The best months are December to March: highs near 83°F, nights near 70°F, and rain on about five days a week.The best months are December to March: highs near 28°C, nights near 21°C, and rain on about five days a week.

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.

Questions


What is the warmest month in Río San Juan?

September, with highs near 90°F and lows near 75°F. The coolest are December and January, with highs near 83°F.September, with highs near 32°C and lows near 24°C. The coolest are December and January, with highs near 28°C.

When does it rain most in Río San Juan?

August, with rain on about six days a week. March is the driest, with rain on about four days a week.

How long are the days in Río San Juan?

From about 11 hours in December to 13½ hours in June.

When are the skies clearest in Río San Juan?

March, when cloud covers about 27% of the sky on average. June is the cloudiest, at about 69%.

Places with a year like Río San Juan's

by their highs, lows and wet days

Their highs, lows, wet days and cloud run closest to Río San Juan's through the year, one place a country. “Six months apart”: their winter is Río San Juan's summer.

Elsewhere in Dominican Republic

All of Dominican Republic

Where to stay

1 in our collection

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.