Puerto Rico in Summer
In summer (June, July and August), Puerto Rico sees average daytime highs around 23°C and overnight lows near 16°C, with 449 mm of rain over about 72 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 23°C. The sky is clear or mostly clear about 4% of the time across summer, and the air most often feels humid.
Summer is Puerto Rico's 2nd-best season to visit on our travel score. For the whole year in context, see Puerto Rico's year-round climate.
- Avg daytime high
- 23°C
- coldest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 449 mm
- 72 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.5
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Puerto Rico in Summer
Across summer, daytime highs hold fairly steady around 23°C.
A typical summer day in Puerto Rico reaches about 23°C and drops to 16°C overnight. The warmest of the three months is August, the coolest July.
Puerto Rico weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 16° | 80 | 12.8 | 11.9 | 6.0 |
| Feb | 26° / 17° | 101 | 14.7 | 11.9 | 5.4 |
| Mar | 26° / 17° | 175 | 24.1 | 12 | 4.3 |
| Apr | 25° / 17° | 200 | 27.1 | 12 | 3.9 |
| May | 24° / 17° | 195 | 27.7 | 12.1 | 4.0 |
| Jun | 23° / 16° | 181 | 25.9 | 12.1 | 4.0 |
| Jul | 23° / 16° | 168 | 25.3 | 12.1 | 4.3 |
| Aug | 24° / 16° | 100 | 20.3 | 12.1 | 5.1 |
| Sep | 25° / 16° | 90 | 21 | 12 | 4.9 |
| Oct | 25° / 16° | 166 | 24.3 | 12 | 4.3 |
| Nov | 26° / 17° | 226 | 26 | 11.9 | 4.0 |
| Dec | 26° / 16° | 141 | 19.2 | 11.9 | 5.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Puerto Rico gets around 449 mm of rain over 72 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early June to 12 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.3 kWh/m².
Is summer a good time to visit Puerto Rico?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Puerto Rico for sightseeing.
What to pack for Puerto Rico in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Puerto Rico sees daytime highs around 23°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 72 days see rain.
UV index in Puerto Rico in Summer
Clear-sky midday UV across summer averages 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 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 14 | 13 | 14 | 13 | 12 | 11 | 14 | 13 | 12 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 14 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 14 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 11 | Extreme |
Air quality in Puerto Rico in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 23 | 54 | 29 | 19 | 13 | 11 | 10 | 13 | 14 | 13 | 13 | 13 |
| Level | Moderate | Poor | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 23 | Moderate |
| Feb | 54 | Poor |
| Mar | 29 | Moderate |
| Apr | 19 | Moderate |
| May | 13 | Moderate |
| Jun | 11 | Good |
| Jul | 10 | Good |
| Aug | 13 | Moderate |
| Sep | 14 | Moderate |
| Oct | 13 | Moderate |
| Nov | 13 | Moderate |
| Dec | 13 | Moderate |
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.
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
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.