Temperature in Puerto Rico in August

Daytime highs, nighttime lows and the warmest cities across Puerto Rico this August.

Puerto Rico, experiences maximum daytime temperatures in August ranging from 28°C (82°F) in Adjuntas to 32°C (90°F) in Utuado. Nighttime temperatures generally drop to 24°C (75°F) in Utuado and 19°C (66°F) in Adjuntas. In Puerto Rico, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

What is the temperature of the different cities in Puerto Rico in August?

To get a sense of August's typical temperatures in the key spots of Puerto Rico, explore the map below. Click on a point for an in-depth look.

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For a detailed overview over the year and the best time to visit Puerto Rico, check out our Puerto Rico's climate page.

See also: the Puerto Rico weather by month.

Best Places to Visit in Puerto Rico in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Puerto Rico.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

Puerto Rico temperatures in August: frequently asked questions

How hot does it get in Puerto Rico in August?

Daytime temperatures in San Juan typically peak at 31°C (88°F) in August, putting it in the very high range.

How cold does it get at night in Puerto Rico in August?

San Juan sees nighttime lows close to 25°C (77°F) in August.

What is the warmest city in August in Puerto Rico?

From a thorough analysis of our records, Utuado clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 32°C (90°F), and evenings that remain near 24°C (75°F).

What is the coldest city in August in Puerto Rico?

Our database indicates that in August, Adjuntas is the city with the coolest temperatures in Puerto Rico. You can expect daytime highs of 28°C (82°F) and nighttime lows close to 19°C (66°F).

How much sun does Puerto Rico get in August?

San Juan usually sees around 267 hours of sunlight, indicating many sunny days.

What is the water temperature in August?

The water temperature averages approximately 29°C (84°F) in San Juan this month, which is a bit warm for swimming. For many people, water temperatures around 29°C (84°F) might feel quite warm, especially compared to typical swimming pool temperatures of 25°C (77°F) to 28°C (82°F).

Interested in more climate information?

We have much more information about the climate in Puerto Rico.

Weather and climate has detailed information for every country in the world. Are you going to Puerto Rico? Get detailed historical weather averages for many cities in Puerto Rico.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.