Puerto Rico weather in August

Many people wonder what kind of weather they can expect in August in Puerto Rico. Is this month a good time to go to Puerto Rico? To answer that question we created this page with all the information you need.

What is the weather like in Puerto Rico in August?

The weather conditions in Puerto Rico in August are generally tolerable.

You can expect very warm maximum average daytime temperatures of around 32°C (89°F) and nighttime temperatures around 26°C (78°F) in San Juan. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

Precipitation in August ranges from heavy in San Juan with an average of 162mm (6.4inch) rainfall to heavy in Mayaguez with 177mm (7inch). It is also generally a sunny period with an average of 267 hours of sunshine in San Juan during the entire month.

We invite you to have a look at the map below to find out more about the different weather conditions per location in Puerto Rico.

Where to go in Puerto Rico in August

Find the average weather conditions in August for the most popular destinations in Puerto Rico on the map below. Click on a destination dot for more detailed information.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

Popular destinations in Puerto Rico

What is the weather like in August for the 5 most popular destinations in Puerto Rico?

Average weather in San Juan

In August San Juan generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 26°C (78°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

San Juan
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
32°C / 89°F 
25°C / 78°F 
281 hours 
155mm / 6.1inch 
18 days 
32°C / 89°F 
26°C / 78°F 
267 hours 
162mm / 6.4inch 
20 days 
32°C / 89°F 
25°C / 78°F 
236 hours 
167mm / 6.6inch 
18 days 
Climate in San Juan

Average weather in Rincon

In August Rincon generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

Rincon
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
32°C / 90°F 
23°C / 73°F 
145mm / 5.7inch 
13 days 
32°C / 90°F 
23°C / 73°F 
177mm / 7inch 
15 days 
32°C / 90°F 
23°C / 73°F 
167mm / 6.6inch 
15 days 
Climate in Rincon

Average weather in Vieques

In August Vieques generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 26°C (78°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

Vieques
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
32°C / 89°F 
25°C / 78°F 
281 hours 
155mm / 6.1inch 
18 days 
32°C / 89°F 
26°C / 78°F 
267 hours 
162mm / 6.4inch 
20 days 
32°C / 89°F 
25°C / 78°F 
236 hours 
167mm / 6.6inch 
18 days 
Climate in Vieques

Average weather in Culebra

In August Culebra generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 26°C (78°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

Culebra
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
32°C / 89°F 
25°C / 78°F 
281 hours 
155mm / 6.1inch 
18 days 
32°C / 89°F 
26°C / 78°F 
267 hours 
162mm / 6.4inch 
20 days 
32°C / 89°F 
25°C / 78°F 
236 hours 
167mm / 6.6inch 
18 days 
Climate in Culebra

Average weather in Fajardo

In August Fajardo generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 26°C (78°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

Fajardo
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
32°C / 89°F 
25°C / 78°F 
281 hours 
155mm / 6.1inch 
18 days 
32°C / 89°F 
26°C / 78°F 
267 hours 
162mm / 6.4inch 
20 days 
32°C / 89°F 
25°C / 78°F 
236 hours 
167mm / 6.6inch 
18 days 
Climate in Fajardo

Is your destination not in the list? Have a look at other destinations in Puerto Rico.

Is August the best time to go to Puerto Rico?

In our opinion August is a good time to visit Puerto Rico with commonly tolerable weather in San Juan. However, the weather conditions may vary depending on your destination.

On average the best time to visit Puerto Rico is in February and March with generally perfect weather in San Juan. The worst month is November that can have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Puerto Rico. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.