Río Grande weather in January

In January, Río Grande sees average daytime highs of 27°C and overnight lows near 21°C, with 61 mm of rain across 11.1 wet days and about 10.9 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 63% of the time in January, and the air most often feels muggy.

Daylight stretches from about 10 h 48 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is Río Grande's 2nd-clearest and 6th-windiest month. For the whole year in context, see Río Grande's year-round climate.

Daytime high
27°
12th warmest
Overnight low
21°
2nd coldest
Rainfall
61 mm
11.1 wet days
Daylight
10 h 54 min
7:24 AM – 6:20 PM
Cloud cover
37%
2nd clearest
Wind
14 km/h
6th windiest
Solar energy
4.4 kWh/m²
Travel score
6.8
out of 10

Río Grande is human settlement in the Dominican Republic.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical January day in Río Grande reaches about 27°C in the afternoon and slips back to 21°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52721
62721
72721
82721
92721
102721
112721
122721
132721
142721
152721
162721
172721
182721
192721
202721
212721
222721
232721
242721
252721
262721
272721
282721
292721
302721
312721

How January really feels in Río Grande

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Río Grande weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 21°6111.110.96.8
Feb27° / 21°448.811.37.0
Mar28° / 21°6210.511.96.7
Apr28° / 22°6212.212.45.9
May29° / 23°8415.912.94.7
Jun30° / 24°421013.24.7
Jul31° / 25°359.713.14.9
Aug31° / 25°4610.712.74.6
Sep31° / 25°7615.612.14.0
Oct30° / 24°831611.54.4
Nov28° / 23°8715.511.15.3
Dec27° / 22°6311.910.86.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 18%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27921
37921
47921
57921
67921
78020
88020
98020
108119
118119
128218
138317
148317
158317
168416
178416
188416
198416
208416
218416
228416
238416
248416
258317
268317
278317
288317
298317
308317
318317

Chance of precipitation in January

Any precipitation

Río Grande gets around 61 mm of rain over 11.1 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
339
439
539
640
740
840
940
1040
1139
1239
1339
1438
1537
1637
1736
1835
1935
2034
2134
2233
2333
2432
2532
2632
2731
2831
2931
3031
3131

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the muggy band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 89% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1166330
2166429
3156727
4156826
5166825
6067123
7067222
8167221
9167419
10177418
11177517
12177517
13187516
14197416
15197515
161107415
171107514
181117414
191127413
201127413
212137312
222137312
232137312
242137411
252137411
262137411
272137510
282137510
292137510
302137510
312137510

Wind in January

Winds average 14 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 48 min at the start of January to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over January. Sunrise moves from 7:21 AM to 7:23 AM, and sunset from 6:11 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:216:11
210.87:226:12
310.87:226:12
410.87:226:13
510.97:226:14
610.97:236:14
710.97:236:15
810.97:236:15
910.97:236:16
1010.97:246:17
1110.97:246:17
1210.97:246:18
1310.97:246:18
1410.97:246:19
1510.97:246:20
1610.97:246:20
1710.97:246:21
1811.07:246:22
1911.07:256:22
2011.07:256:23
2111.07:256:23
2211.07:246:24
2311.07:246:25
2411.07:246:25
2511.07:246:26
2611.07:246:27
2711.17:246:27
2811.17:246:28
2911.17:246:28
3011.17:236:29
3111.17:236:30

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.4 kWh/m².

For context, solar energy here swings from a low near 4.15 kWh/m² to a high of 6.9 kWh/m² in June across the year — January's 4.4 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in January

Hazard calendar for Río Grande

In seasonPeak

None of Río Grande's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Río Grande sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Río Grande?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.8
Sightseeing
2nd-best month of the year
6.8
Beach & pool
4th-best month of the year

January is a reasonable time to visit Río Grande for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Río Grande in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Río Grande sees daytime highs around 27°C and nights near 21°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Río Grande in January

The nearest coast averages about 26°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 km away) is warmest in September at about 29°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr26Warm
May27Warm
Jun28Warm
Jul28Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Río Grande in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Río Grande peaks around March 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighMar 22UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct10Very high
Nov7Very high
Dec7High

Air quality in Río Grande in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Río Grande is worst in June — around 30 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (February, 16 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2030 µg/m³Feb 2016 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb16Moderate
Mar16Moderate
Apr18Moderate
May23Moderate
Jun30Moderate
Jul28Moderate
Aug25Moderate
Sep26Moderate
Oct27Moderate
Nov20Moderate
Dec17Moderate
Location & terrain

Where is Río Grande?

Río Grande sits at 19.7°N, 70.8°W, 397 m above sea level, in Dominican Republic. The nearest listed city is Villa Bisonó, 16 km away.

EsperanzaSantiago de los CaballerosTamborilSosuaMao

Topography around Río Grande

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Río Grande.

Within 3 km, the terrain around Río Grande has significant variations in elevation — a maximum elevation change of 453 m around an average of 344 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,235 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,073 m.

The land around Río Grande is covered by trees (88%) within 3 km, trees (78%) within 16 km, and trees (47%) and water (30%) within 80 km.

3 km
453 m
16 km
1,235 m
80 km
3,073 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Villa Bisonó 16 km · Puerto Plata 16 km · Monte Llano 19 km · Esperanza 25 km · Santiago de los Caballeros 25 km · Tamboril 26 km · Sosua 28 km · Mao 35 km

Dominican Republic travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
120 V · 60 Hz
Prices
≈ 39% of US
price level, 2025
GDP per capita
$11,059
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
45%
of population, 2024
Homicide rate
10.9
per 100k, 2023
Road deaths
64.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 503

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Río Grande (19.6667°, -70.7667°, elevation 397 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).