Puerto Rico weather in May

In May, Puerto Rico sees average daytime highs of 24°C and overnight lows near 17°C, with 195 mm of rain across 27.7 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 1% of the time in May, and the air most often feels humid.

Daylight stretches from about 12 h 06 min at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Puerto Rico's 12th-clearest and 10th-windiest month. For the whole year in context, see Puerto Rico's year-round climate.

Daytime high
24°
9th warmest
Overnight low
17°
9th coldest
Rainfall
195 mm
27.7 wet days
Daylight
12 h 06 min
5:54 AM – 5:59 PM
Cloud cover
89%
12th clearest
Wind
4 km/h
10th windiest
Solar energy
4.18 kWh/m²
Travel score
4.0
out of 10

Puerto Rico is capital of Puerto Rico municipality, Caquetá Department, Colombia.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical May day in Puerto Rico reaches about 24°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 26°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12517
22417
32417
42417
52417
62417
72417
82417
92417
102417
112417
122417
132417
142417
152417
162417
172417
182417
192417
202417
212417
222417
232417
242417
252417
262416
272416
282416
292416
302416
312416

Puerto Rico weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 16°8012.811.96.0
Feb26° / 17°10114.711.95.4
Mar26° / 17°17524.1124.3
Apr25° / 17°20027.1123.9
May24° / 17°19527.712.14.0
Jun23° / 16°18125.912.14.0
Jul23° / 16°16825.312.14.3
Aug24° / 16°10020.312.15.1
Sep25° / 16°9021124.9
Oct25° / 16°16624.3124.3
Nov26° / 17°2262611.94.0
Dec26° / 16°14119.211.95.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 4% of May, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4496
5496
6496
7397
8397
9397
10397
11397
12397
13397
14496
15496
16595
17595
18595
19595
20595
21694
22694
23694
24694
25793
26793
27793
28793
29793
30793
31793

Chance of precipitation in May

Any precipitation

Puerto Rico gets around 195 mm of rain over 27.7 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 89% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
290
390
490
590
690
790
890
990
1090
1191
1290
1390
1490
1590
1689
1789
1889
1989
2088
2188
2288
2388
2488
2588
2687
2787
2887
2987
3087
3187

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
12899
22899
32899
42899
52899
62899
71909
81909
91909
102899
112899
122899
132908
142908
152908
162908
172908
183898
193898
203907
213907
223907
233916
243916
253916
263925
273925
283934
293934
304924
314933

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in May

DaylightNight

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

Days grow by about 0 minutes over May. Sunrise moves from 5:56 AM to 5:55 AM, and sunset from 6:00 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:566:00
212.15:566:00
312.15:566:00
412.15:556:00
512.15:556:00
612.15:555:59
712.15:555:59
812.15:555:59
912.15:555:59
1012.15:555:59
1112.15:555:59
1212.15:545:59
1312.15:545:59
1412.15:545:59
1512.15:545:59
1612.15:545:59
1712.15:546:00
1812.15:546:00
1912.15:546:00
2012.15:546:00
2112.15:546:00
2212.15:546:00
2312.15:546:00
2412.15:546:00
2512.15:546:00
2612.15:556:00
2712.15:556:00
2812.15:556:01
2912.15:556:01
3012.15:556:01
3112.15:556:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.18 kWh/m².

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 5.48 kWh/m² in September across the year — May's 4.18 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in May

Is May a good time to visit Puerto Rico?

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

4.0
Sightseeing
9th-best month of the year
3.4
Beach & pool
10th-best month of the year

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

What to pack for Puerto Rico in May

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

In May, Puerto Rico sees daytime highs around 24°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 28 days see rain.

rain gearlight clothes

UV index in Puerto Rico in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Puerto Rico peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 13UV 15Dec 12UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May14Extreme
Jun13Extreme
Jul12Extreme
Aug11Extreme
Sep14Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Puerto Rico in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Puerto Rico is worst in February — around 54 µg/m³ PM2.5 (poor), about 5.3× the cleanest month (July, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodModerateFeb 1650 µg/m³Jul 1210 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb54Poor
Mar29Moderate
Apr19Moderate
May13Moderate
Jun11Good
Jul10Good
Aug13Moderate
Sep14Moderate
Oct13Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Puerto Rico?

Puerto Rico sits at 1.9°N, 75.2°W, 259 m above sea level, in Colombia. The nearest listed city is El Doncello, 29 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 240 m around an average of 266 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,995 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,253 m.

The land around Puerto Rico is covered by grassland (60%) and trees (33%) within 3 km, trees (58%) and grassland (41%) within 16 km, and trees (57%) and grassland (42%) within 80 km.

3 km
240 m
16 km
1,995 m
80 km
3,253 m
treesgrasslandartificial surfaceswater
May weather nearby: El Doncello 29 km · Florencia 59 km · Garzón 61 km · Guadalupe 68 km · Gigante 68 km · Tarqui 77 km · Campoalegre 88 km · Rivera 97 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 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 (1.91°, -75.1593°, elevation 259 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).