Fajardo weather in January

In January, Fajardo sees average daytime highs of 26°C and overnight lows near 23°C, with 60 mm of rain across 19 wet days and about 11 hours of daylight. It is the 11th-warmest and 10th-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 55% of the time in January, and the air most often feels oppressive.

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 Fajardo's 2nd-clearest and 4th-windiest month. For the whole year in context, see Fajardo's year-round climate.

Daytime high
26°
11th warmest
Overnight low
23°
3rd coldest
Rainfall
60 mm
19 wet days
Daylight
11 hours
7:02 AM – 6:02 PM
Cloud cover
41%
2nd clearest
Wind
15 km/h
4th windiest
Solar energy
4.65 kWh/m²
Travel score
5.7
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 Fajardo reaches about 26°C in the afternoon and slips back to 23°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°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)
12623
22623
32623
42623
52623
62623
72623
82623
92623
102623
112623
122623
132623
142623
152623
162623
172623
182623
192623
202623
212623
222623
232623
242623
252623
262623
272623
282623
292623
302623
312623

How January really feels in Fajardo

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.

Fajardo weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 23°6019115.7
Feb26° / 23°4816.511.45.9
Mar26° / 23°5817.111.95.9
Apr27° / 23°8219.712.45.2
May27° / 24°13624.212.84.4
Jun28° / 25°10823.113.14.1
Jul28° / 25°13524.7134.0
Aug29° / 26°14626.712.63.6
Sep29° / 25°17025.512.13.5
Oct28° / 25°1602611.63.7
Nov27° / 24°14023.811.14.5
Dec26° / 24°7419.910.95.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 29% of January, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28218
38317
48416
58416
68416
78515
88515
98515
108515
118515
128515
138515
148515
158515
168515
178416
188416
198416
208416
218416
228416
238416
248416
258416
268416
278416
288416
298416
308416
318416

Chance of precipitation in January

Any precipitation

Fajardo gets around 60 mm of rain over 19 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 62% and peaks near 65% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
364
464
565
665
765
865
965
1065
1165
1264
1364
1463
1563
1662
1762
1861
1960
2060
2159
2259
2358
2458
2558
2657
2757
2857
2958
3058
3158

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 54% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1023068
2023068
3023167
4023266
5023365
6023464
7023563
8023761
9023860
10023959
11024058
12024157
13124156
14124255
15124354
16124453
17124552
18134551
19134650
20134750
21134749
22144848
23144847
24054946
25054945
26065044
27065143
28075142
29075241
30075340
31085240

Wind in January

Winds average 15 km/h in January.

Across January, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 6:58 AM to 7:01 AM, and sunset from 5:53 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:585:53
210.96:595:54
310.96:595:54
410.96:595:55
510.96:595:56
610.97:005:56
710.97:005:57
811.07:005:57
911.07:005:58
1011.07:015:59
1111.07:015:59
1211.07:016:00
1311.07:016:00
1411.07:016:01
1511.07:016:02
1611.07:026:02
1711.07:026:03
1811.07:026:03
1911.07:026:04
2011.07:026:05
2111.17:026:05
2211.17:026:06
2311.17:026:06
2411.17:026:07
2511.17:026:08
2611.17:026:08
2711.17:016:09
2811.17:016:09
2911.17:016:10
3011.27:016:11
3111.27:016:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.65 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 6.54 kWh/m² in April across the year — January's 4.65 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
315.0Bright
Planning a trip in January

Hazard calendar for Fajardo

In seasonPeak

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

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

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

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

Is January a good time to visit Fajardo?

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

5.7
Sightseeing
3rd-best month of the year
5.4
Beach & pool
3rd-best month of the year

January is a reasonable time to visit Fajardo for sightseeing.

What to pack for Fajardo in January

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

In January, Fajardo sees daytime highs around 26°C and nights near 23°C. Pack rain gear. Worth having: light clothes and sun protection. About 19 days see rain.

rain gearlight clothessun protection

Sea temperature near Fajardo 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 offshore 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
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Fajardo 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 Fajardo peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highApr 13UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Fajardo 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 Fajardo is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.7× the cleanest month (January, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1125 µg/m³Jan 15 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr9Good
May14Moderate
Jun24Moderate
Jul25Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov8Good
Dec5Good
Location & terrain

Where is Fajardo?

Fajardo sits at 18.3°N, 65.7°W, 10 m above sea level, in Puerto Rico. The nearest listed city is Humacao, 27 km away.

HumacaoCarolinaTrujillo AltoCaguasGuaynaboSan JuanCatañoBayamón

Topography around Fajardo

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

Within 3 km, the terrain around Fajardo has only modest variations in elevation — a maximum elevation change of 236 m around an average of 31 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,040 m; within 80 km, large variations in elevation — a maximum elevation change of 1,022 m.

The land around Fajardo is covered by trees (48%) and artificial surfaces (26%) within 3 km, water (58%) and trees (34%) within 16 km, and water (74%) and trees (20%) within 80 km.

3 km
236 m
16 km
1,040 m
80 km
1,022 m
treesgrasslandartificial surfaceswaterwetlandmangroves
January weather nearby: Humacao 27 km · Carolina 33 km · Trujillo Alto 38 km · Caguas 43 km · Guaynabo 49 km · San Juan 50 km · Cataño 51 km · Bayamón 54 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 Fajardo (18.3258°, -65.6524°, elevation 10 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).