Trujillo Alto weather in July

In July, Trujillo Alto sees average daytime highs of 29°C and overnight lows near 24°C, with 110 mm of rain across 21.8 wet days and about 13 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 27% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 13 h 06 min at the start of July to 12 h 48 min by month's end. Set against the rest of the year, July is Trujillo Alto's 7th-clearest and 1st-windiest month. For the whole year in context, see Trujillo Alto's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
24°
11th coldest
Rainfall
110 mm
21.8 wet days
Daylight
13 hours
6:00 AM – 7:00 PM
Cloud cover
60%
7th clearest
Wind
13 km/h
1st windiest
Solar energy
6.5 kWh/m²
Travel score
3.9
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical July day in Trujillo Alto reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262925
272925
282925
292925
302925
312925

How July really feels in Trujillo Alto

Once humidity and wind are folded in, July averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Trujillo Alto weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 22°4915.7116.0
Feb27° / 21°391311.46.2
Mar27° / 22°5514.811.96.0
Apr28° / 22°8717.712.45.3
May28° / 23°14221.912.94.2
Jun29° / 24°9920.813.14.0
Jul29° / 24°11021.8133.9
Aug30° / 25°1272412.63.6
Sep29° / 24°16825.212.13.4
Oct29° / 24°15624.911.63.6
Nov28° / 23°12422.311.14.5
Dec27° / 22°5916.510.95.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 28% of July, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45545
55545
65545
75545
85545
95644
105644
115644
125644
135545
145545
155545
165446
175446
185545
195446
205446
215545
225545
235545
245545
255446
265545
275545
285545
295545
305545
315545

Chance of precipitation in July

Any precipitation

Trujillo Alto gets around 110 mm of rain over 21.8 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 70% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
165
265
366
466
567
667
768
868
969
1070
1170
1270
1371
1471
1571
1671
1771
1871
1971
2072
2172
2272
2372
2472
2572
2672
2773
2873
2973
3073
3173

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
18020
28020
38020
47921
57921
67921
77921
87921
97822
107822
117723
127723
137624
147525
157525
167426
177327
187327
197228
207129
217030
227030
236931
246832
256733
266634
276634
286535
296436
306436
316337

Wind in July

Winds average 13 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 06 min at the start of July to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 5:55 AM to 6:05 AM, and sunset from 7:00 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:557:00
213.15:557:00
313.15:557:00
413.15:567:00
513.15:567:00
613.15:567:00
713.15:577:00
813.15:577:00
913.15:577:00
1013.05:577:00
1113.05:587:00
1213.05:587:00
1313.05:587:00
1413.05:597:00
1513.05:597:00
1613.06:007:00
1713.06:007:00
1813.06:006:59
1913.06:016:59
2013.06:016:59
2113.06:016:59
2212.96:026:59
2312.96:026:58
2412.96:026:58
2512.96:036:58
2612.96:036:57
2712.96:036:57
2812.96:046:57
2912.96:046:56
3012.96:046:56
3112.86:056:56

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.5 kWh/m².

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.55 kWh/m² in June across the year — July's 6.5 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
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
316.5Intense
Planning a trip in July

Hazard calendar for Trujillo Alto

In seasonPeak

In July, Trujillo Alto sits inside its atlantic hurricane and dust season. The full year is below, with each hazard's peak months called out.

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

Trujillo Alto sees seasonal dust haze (July), heaviest in July.

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

Is July a good time to visit Trujillo Alto?

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

3.9
Sightseeing
9th-best month of the year
5.2
Beach & pool
6th-best month of the year

July is a weaker month for outdoor sightseeing in Trujillo Alto.

What to pack for Trujillo Alto in July

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

In July, Trujillo Alto sees daytime highs around 29°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Trujillo Alto in July

The nearest coast averages about 28°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 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
May27Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Trujillo Alto in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Trujillo Alto 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
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Trujillo Alto in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Trujillo Alto 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 Trujillo Alto?

Trujillo Alto sits at 18.4°N, 66.0°W, 20 m above sea level, in Puerto Rico. The nearest listed city is Carolina, 6.0 km away.

San JuanBayamónLevittownCandelaria

Topography around Trujillo Alto

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

Within 3 km, the terrain around Trujillo Alto has only modest variations in elevation — a maximum elevation change of 211 m around an average of 65 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 573 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,308 m.

The land around Trujillo Alto is covered by trees (61%) and artificial surfaces (36%) within 3 km, trees (51%) and artificial surfaces (25%) within 16 km, and water (64%) and trees (28%) within 80 km.

3 km
211 m
16 km
573 m
80 km
1,308 m
treesgrasslandartificial surfaceswaterwetlandmangroves
July weather nearby: Carolina 6.0 km · Guaynabo 11 km · Caguas 14 km · Cataño 15 km · San Juan 16 km · Bayamón 16 km · Levittown 21 km · Candelaria 22 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 Trujillo Alto (18.3547°, -66.0074°, elevation 20 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).