Puerto Rico weather in July

In July, Puerto Rico sees average daytime highs of 21°C and overnight lows near 11°C, with 125 mm of rain across 9.1 wet days and about 10.5 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 44% of the time in July, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of July to 10 h 42 min by month's end. Set against the rest of the year, July is Puerto Rico's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Puerto Rico's year-round climate.

Daytime high
21°
12th warmest
Overnight low
11°
1st coldest
Rainfall
125 mm
9.1 wet days
Daylight
10 h 30 min
7:32 AM – 6:00 PM
Cloud cover
49%
2nd clearest
Wind
10 km/h
2nd windiest
Solar energy
3.02 kWh/m²
Travel score
6.9
out of 10

Puerto Rico is capital city of the Libertador General San Martín Department, in the Misiones Province of Argentina.

Founded
1919

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical July day in Puerto Rico reaches about 21°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 28°C. Set against its neighbours, July runs on par with June and about 3°C cooler than August.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72112
82112
92112
102111
112111
122111
132111
142111
152111
162111
172111
182111
192111
202111
212111
222111
232111
242111
252211
262211
272211
282211
292211
302212
312212

How July really feels in Puerto Rico

Once humidity and wind are folded in, July 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

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

Puerto Rico weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°15114.913.53.7
Feb31° / 21°15414.412.94.0
Mar30° / 20°13711.912.24.9
Apr27° / 17°1419.711.46.5
May23° / 14°1629.210.77.0
Jun21° / 12°1549.110.36.7
Jul21° / 11°1259.110.56.9
Aug24° / 13°907.611.17.6
Sep26° / 15°15310.211.86.8
Oct28° / 17°20613.212.65.8
Nov30° / 18°16711.413.35.1
Dec31° / 20°1811413.74.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45347
55446
65446
75644
85644
95743
105743
115842
125842
135842
145842
155842
165842
175842
185842
195842
205842
215842
225842
235842
245941
255941
265941
275941
286040
296040
306040
316040

Chance of precipitation in July

Any precipitation

Puerto Rico gets around 125 mm of rain over 9.1 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 29% and peaks near 32% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
132
232
332
431
531
631
731
831
931
1031
1131
1231
1331
1431
1531
1630
1730
1830
1930
2029
2129
2229
2328
2428
2527
2626
2726
2825
2924
3024
3124

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13826287
23926287
33926287
44026286
54126276
64226276
74326266
84426265
94426255
104526254
114625244
124726234
134826223
144926213
155126203
165226193
175127193
185227183
195228173
205228173
215328163
225229163
235229163
245229163
255129173
265030173
275030173
284930183
294930193
304830193
314730203

Wind in July

Winds average 10 km/h in July.

Across July, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 18 min at the start of July to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over July. Sunrise moves from 7:33 AM to 7:25 AM, and sunset from 5:53 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.37:335:53
210.37:335:54
310.37:335:54
410.37:335:54
510.47:335:55
610.47:335:55
710.47:335:56
810.47:335:56
910.47:335:56
1010.47:335:57
1110.47:335:57
1210.47:335:58
1310.47:325:58
1410.47:325:59
1510.57:325:59
1610.57:326:00
1710.57:316:00
1810.57:316:01
1910.57:316:01
2010.57:306:02
2110.57:306:02
2210.57:306:03
2310.67:296:03
2410.67:296:04
2510.67:286:04
2610.67:286:05
2710.67:276:05
2810.67:276:06
2910.77:266:06
3010.77:266:07
3110.77:256:07

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.02 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.44 kWh/m² in December across the year — July's 3.02 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.2Moderate
233.2Moderate
243.2Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in July

Is July a good time to visit Puerto Rico?

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

6.9
Sightseeing
3rd-best month of the year
4.4
Beach & pool
11th-best month of the year

July is a reasonable time to visit Puerto Rico for sightseeing.

What to pack for Puerto Rico in July

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

In July, Puerto Rico sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Puerto Rico in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Puerto Rico peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 18UV 14Jun 22UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct8Very high
Nov11Extreme
Dec13Extreme

Air quality in Puerto Rico 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 Puerto Rico is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1318 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar7Good
Apr8Good
May7Good
Jun7Good
Jul10Good
Aug16Moderate
Sep19Moderate
Oct11Good
Nov8Good
Dec7Good
Location & terrain

Where is Puerto Rico?

Puerto Rico sits at 26.8°S, 55.0°W, 188 m above sea level, in Argentina. The nearest listed city is Jardín América, 33 km away.

Topography around Puerto Rico

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

Within 3 km, the terrain around Puerto Rico has only modest variations in elevation — a maximum elevation change of 161 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, significant variations in elevation — a maximum elevation change of 550 m.

The land around Puerto Rico is covered by trees (52%) and grassland (24%) within 3 km, trees (59%) and cropland (21%) within 16 km, and trees (65%) and cropland (24%) within 80 km.

3 km
161 m
16 km
250 m
80 km
550 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Jardín América 33 km · Montecarlo 37 km · Eldorado 60 km · Oberá 76 km · Trinidad 77 km · San Vicente 91 km · San Pedro 93 km · Leandro N. Alem 93 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Puerto Rico (-26.8089°, -55.0215°, elevation 188 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. 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).