San Juan de la Maguana weather in January

In January, San Juan de la Maguana sees average daytime highs of 26°C and overnight lows near 16°C, with 14 mm of rain across 3.8 wet days and about 11 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 64% of the time in January, and the air most often feels humid.

Daylight stretches from about 10 h 54 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is San Juan de la Maguana's 1st-clearest and 5th-windiest month. For the whole year in context, see San Juan de la Maguana's year-round climate.

Daytime high
26°
12th warmest
Overnight low
16°
1st coldest
Rainfall
14 mm
3.8 wet days
Daylight
11 hours
7:25 AM – 6:24 PM
Cloud cover
35%
1st clearest
Wind
5 km/h
5th windiest
Solar energy
4.69 kWh/m²
Travel score
8.1
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical January day in San Juan de la Maguana reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, January runs on par with December and on par with February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72616
82616
92616
102616
112616
122616
132616
142616
152616
162616
172616
182616
192616
202616
212616
222616
232616
242616
252616
262616
272616
282616
292616
302616
312616

San Juan de la Maguana weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 16°143.8118.1
Feb26° / 16°266.211.47.6
Mar26° / 17°7112.511.96.5
Apr26° / 18°10116.712.45.7
May26° / 19°12219.712.95.2
Jun27° / 19°7416.713.15.4
Jul28° / 19°6215.9135.5
Aug28° / 19°10318.512.64.9
Sep28° / 19°11120.212.14.8
Oct27° / 19°10418.311.65.3
Nov26° / 18°5911.411.16.5
Dec26° / 16°184.210.97.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of January, with mostly cloudy or overcast conditions the remaining 15%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38416
48416
58515
68416
78416
88416
98416
108416
118515
128515
138515
148515
158515
168614
178614
188614
198713
208713
218713
228614
238614
248614
258614
268614
278614
288614
298614
308713
318713

Chance of precipitation in January

Any precipitation

San Juan de la Maguana gets around 14 mm of rain over 3.8 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 15% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
412
512
612
712
812
912
1012
1112
1212
1312
1412
1512
1612
1712
1812
1912
2012
2112
2212
2313
2413
2513
2613
2714
2814
2914
3015
3115

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1338563
2338563
3339553
4340543
5441532
6441532
7442522
8542512
9542512
10543502
11643502
12643492
13644482
14644482
15745472
16745472
17745462
18745462
19745462
20745462
21745462
22745462
23745462
24745461
25845461
26845461
27845461
28845461
29944461
30944461
31943471

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 54 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 12 minutes over January. Sunrise moves from 7:21 AM to 7:24 AM, and sunset from 6:15 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:216:15
210.97:226:15
310.97:226:16
410.97:226:16
510.97:236:17
610.97:236:18
710.97:236:18
810.97:236:19
910.97:246:19
1010.97:246:20
1110.97:246:21
1210.97:246:21
1311.07:246:22
1411.07:256:22
1511.07:256:23
1611.07:256:24
1711.07:256:24
1811.07:256:25
1911.07:256:26
2011.07:256:26
2111.07:256:27
2211.07:256:27
2311.17:256:28
2411.17:256:29
2511.17:256:29
2611.17:256:30
2711.17:246:30
2811.17:246:31
2911.17:246:32
3011.17:246:32
3111.17:246:33

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.69 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 6.52 kWh/m² in July across the year — January's 4.69 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
315.0Bright
Planning a trip in January

Is January a good time to visit San Juan de la Maguana?

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

8.1
Sightseeing
1st-best month of the year
7.6
Beach & pool
1st-best month of the year

January is one of the better times to visit San Juan de la Maguana for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Juan de la Maguana in January

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

In January, San Juan de la Maguana sees daytime highs around 26°C and nights near 16°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near San Juan de la Maguana in January

The nearest coast averages about 27°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 61 km away) is warmest in September at about 29°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in San Juan de la Maguana in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Juan de la Maguana peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 24UV 13Dec 15UV 7
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in San Juan de la Maguana 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 San Juan de la Maguana is worst in June — around 30 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (February, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2230 µg/m³Feb 1014 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May21Moderate
Jun30Moderate
Jul29Moderate
Aug25Moderate
Sep22Moderate
Oct23Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is San Juan de la Maguana?

San Juan de la Maguana sits at 18.8°N, 71.2°W, 406 m above sea level, in Dominican Republic. The nearest listed city is Las Matas de Farfán, 31 km away.

Las Matas de FarfánNeibaConstanzaAzuaSanta Cruz de BarahonaJarabacoaSan Ignacio de SabanetaSan José de Ocoa

Topography around San Juan de la Maguana

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Juan de la Maguana.

Within 3 km, the terrain around San Juan de la Maguana has only modest variations in elevation — a maximum elevation change of 55 m around an average of 410 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,406 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,109 m.

The land around San Juan de la Maguana is covered by cropland (49%) and artificial surfaces (24%) within 3 km, trees (51%), grassland (24%) and cropland (22%) within 16 km, and trees (54%) and grassland (29%) within 80 km.

3 km
55 m
16 km
1,406 m
80 km
3,109 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Las Matas de Farfán 31 km · Neiba 41 km · Constanza 52 km · Azua 65 km · Santa Cruz de Barahona 68 km · Jarabacoa 71 km · San Ignacio de Sabaneta 76 km · San José de Ocoa 81 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 San Juan de la Maguana (18.8064°, -71.2263°, elevation 406 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. 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).