Humacao weather in April

In April, Humacao sees average daytime highs of 27°C and overnight lows near 23°C, with 82 mm of rain across 19.7 wet days and about 12.4 hours of daylight. It is the 8th-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 38% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 36 min by month's end. Set against the rest of the year, April is Humacao's 5th-clearest and 8th-windiest month. For the whole year in context, see Humacao's year-round climate.

Daytime high
27°
8th warmest
Overnight low
23°
4th coldest
Rainfall
82 mm
19.7 wet days
Daylight
12 h 24 min
6:11 AM – 6:36 PM
Cloud cover
50%
5th clearest
Wind
14 km/h
8th windiest
Solar energy
6.54 kWh/m²
Travel score
5.2
out of 10

Humacao is historical and administrative center (seat) of Humacao, Puerto Rico.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

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

A typical April day in Humacao reaches about 27°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 26°C and 28°C. Set against its neighbours, April runs on par with March and about 1°C cooler than May.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52623
62623
72623
82623
92623
102623
112723
122723
132723
142723
152723
162723
172723
182724
192724
202724
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724

How April really feels in Humacao

Once humidity and wind are folded in, April 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

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

Humacao weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 8th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 31% of April, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17525
27525
37426
47426
57426
67426
77426
87327
97327
107327
117228
127129
137129
147030
156931
166931
176832
186733
196733
206634
216634
226535
236535
246535
256337
266337
276238
286139
296139
305941

Chance of precipitation in April

Any precipitation

Humacao gets around 82 mm of rain over 19.7 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 66% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
162
262
362
462
562
663
763
863
963
1064
1164
1264
1365
1465
1566
1666
1766
1867
1967
2067
2167
2267
2368
2468
2568
2669
2769
2870
2970
3071

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1535600
2535600
3534610
4534610
5533620
6433630
7433630
8433630
9433630
10433630
11432640
12432640
13332650
14332641
15331651
16330661
17230671
18229672
19227692
20226702
21124732
22123733
23121753
24119773
25118783
26116803
27115813
28113833
29112843
30111853

Wind in April

Winds average 14 km/h in April.

Across April, 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.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light 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
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over April. Sunrise moves from 6:23 AM to 6:02 AM, and sunset from 6:33 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:236:33
212.26:236:33
312.26:226:33
412.26:216:33
512.26:206:33
612.26:196:34
712.36:186:34
812.36:186:34
912.36:176:34
1012.36:166:34
1112.36:156:35
1212.36:146:35
1312.46:146:35
1412.46:136:35
1512.46:126:36
1612.46:116:36
1712.46:106:36
1812.46:106:36
1912.56:096:37
2012.56:086:37
2112.56:086:37
2212.56:076:37
2312.56:066:38
2412.56:056:38
2512.66:056:38
2612.66:046:38
2712.66:036:39
2812.66:036:39
2912.66:026:39
3012.66:026:40

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.54 kWh/m² — the sunniest month for solar.

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 — April's 6.54 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in April

Hazard calendar for Humacao

In seasonPeak

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

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

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

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

Is April a good time to visit Humacao?

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

5.2
Sightseeing
5th-best month of the year
5.2
Beach & pool
5th-best month of the year

April is a reasonable time to visit Humacao for sightseeing.

What to pack for Humacao in April

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

In April, Humacao sees daytime highs around 27°C and nights near 23°C. Pack rain gear and sun protection. Worth having: light clothes. About 20 days see rain.

rain gearsun protectionlight clothes

Sea temperature near Humacao in April

The nearest coast averages about 27°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 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
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Humacao in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Humacao peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 12UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Humacao in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Humacao 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 Humacao?

Humacao sits at 18.1°N, 65.8°W, 22 m above sea level, in Puerto Rico. The nearest listed city is Caguas, 25 km away.

CaguasFajardoCarolinaTrujillo AltoGuayamaCayeyGuaynaboBayamón

Topography around Humacao

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

Within 3 km, the terrain around Humacao has significant variations in elevation — a maximum elevation change of 271 m around an average of 68 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,052 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,298 m.

The land around Humacao is covered by trees (65%) and artificial surfaces (24%) within 3 km, trees (55%) and water (24%) within 16 km, and water (69%) and trees (24%) within 80 km.

3 km
271 m
16 km
1,052 m
80 km
1,298 m
treesgrasslandartificial surfaceswaterwetland
April weather nearby: Caguas 25 km · Fajardo 27 km · Carolina 29 km · Trujillo Alto 30 km · Guayama 35 km · Cayey 36 km · Guaynabo 38 km · Bayamón 44 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 Humacao (18.1497°, -65.8274°, elevation 22 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).