Yauco weather in January

In January, Yauco sees average daytime highs of 27°C and overnight lows near 22°C, with 15 mm of rain across 4.4 wet days and about 11 hours of daylight. It is the 10th-warmest and 12th-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 65% of the time in January, and the air most often feels muggy.

Daylight stretches from about 10 h 54 min at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Yauco's 1st-clearest and 4th-windiest month. For the whole year in context, see Yauco's year-round climate.

Daytime high
27°
10th warmest
Overnight low
22°
3rd coldest
Rainfall
15 mm
4.4 wet days
Daylight
11 hours
7:06 AM – 6:08 PM
Cloud cover
37%
1st clearest
Wind
16 km/h
4th windiest
Solar energy
4.82 kWh/m²
Travel score
7.8
out of 10

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 Yauco reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102722
112722
122722
132722
142722
152722
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292722
302722
312722

How January really feels in Yauco

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.

Yauco weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°154.4117.8
Feb27° / 22°194.511.47.7
Mar27° / 22°357.511.97.1
Apr27° / 23°5511.212.46.4
May28° / 24°9215.412.85.6
Jun29° / 24°5313.213.15.2
Jul29° / 25°6013.3135.1
Aug29° / 25°8517.412.64.5
Sep29° / 25°12720.112.14.3
Oct28° / 24°10619.511.64.6
Nov28° / 23°7313.111.26.0
Dec27° / 23°22510.97.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of January, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18713
28812
38812
48911
58911
68911
78911
88911
98911
108911
118911
128911
138812
148812
158812
168812
178812
188812
198812
208812
218812
228812
238812
248812
258911
268911
278911
288911
298911
308911
319010

Chance of precipitation in January

Any precipitation

Yauco gets around 15 mm of rain over 4.4 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 14% and peaks near 15% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
412
512
613
713
813
914
1014
1114
1214
1315
1415
1515
1615
1715
1815
1915
2015
2115
2215
2315
2415
2515
2615
2715
2815
2915
3015
3115

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 79% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1098110
209829
309838
4010837
5010846
6011845
7011845
8011854
9012844
10012844
11112843
12113833
13113833
14114823
15115813
16115813
17116803
18117793
19117793
20218773
21219763
22219763
23220762
24220762
25221752
26322732
27322732
28322732
29323722
30323722
31322732

Wind in January

Winds average 16 km/h in January.

Across January, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 54 min at the start of January to 11 h 12 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 7:02 AM to 7:05 AM, and sunset from 5:59 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:025:59
210.97:035:59
310.97:036:00
410.97:036:00
511.07:046:01
611.07:046:02
711.07:046:02
811.07:056:03
911.07:056:03
1011.07:056:04
1111.07:056:04
1211.07:056:05
1311.07:056:06
1411.07:066:06
1511.07:066:07
1611.07:066:08
1711.07:066:08
1811.07:066:09
1911.17:066:09
2011.17:066:10
2111.17:066:11
2211.17:066:11
2311.17:066:12
2411.17:066:12
2511.17:066:13
2611.17:066:13
2711.17:066:14
2811.17:066:15
2911.27:066:15
3011.27:056:16
3111.27:056:16

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 6.69 kWh/m² in June across the year — January's 4.82 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
315.1Bright
Planning a trip in January

Hazard calendar for Yauco

In seasonPeak

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

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

Yauco's rainy season runs July–November, when most of the year's rain falls.

Yauco sees seasonal dust haze (July), heaviest in July.

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

Is January a good time to visit Yauco?

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

7.8
Sightseeing
1st-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Yauco in January

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

In January, Yauco sees daytime highs around 27°C and nights near 22°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Yauco 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 18 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
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Yauco 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 Yauco peaks around April 13 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 highApr 13UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Yauco 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 Yauco is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.8× the cleanest month (January, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1025 µg/m³Jan 15 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr8Good
May15Moderate
Jun25Moderate
Jul25Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov8Good
Dec5Good
Location & terrain

Where is Yauco?

Yauco sits at 18.0°N, 66.8°W, 40 m above sea level, in Puerto Rico. The nearest listed city is San Germán, 21 km away.

San GermánLa PargueraPonceMayagüezAreciboAguadillaBarcelonetaManatí

Topography around Yauco

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

Within 3 km, the terrain around Yauco has only modest variations in elevation — a maximum elevation change of 215 m around an average of 79 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,191 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,307 m.

The land around Yauco is covered by trees (56%) and artificial surfaces (25%) within 3 km, trees (60%) and water (21%) within 16 km, and water (60%) and trees (31%) within 80 km.

3 km
215 m
16 km
1,191 m
80 km
1,307 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: San Germán 21 km · La Parguera 22 km · Ponce 24 km · Mayagüez 36 km · Arecibo 51 km · Aguadilla 54 km · Barceloneta 57 km · Manatí 58 km

Puerto Rico travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 78% of US
price level, 2025
GDP per capita
$40,620
2025
Happiness
7.0 / 10
World Happiness, 2015
Safe drinking water
99%
of population, 2024
Homicide rate
14.6
per 100k, 2023
Income group
High
World Bank
Religion
Roman Catholic 56%Protestant 33%none 7%other 2%

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 Yauco (18.035°, -66.8499°, elevation 40 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).