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Weather in August in Puerto Rico

Planning a getaway to Puerto Rico this August and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in Puerto Rico in August?

August in Puerto Rico generally has temperatures that range from warm to very warm, with precipitation levels ranging from moderate to heavy.

Temperatures

The average highest temperatures fluctuate between warm in Maunabo at 30°C to very warm in Utuado at 32°C. Nighttime temperatures generally drop to 24°C in Utuado and 26°C in Maunabo. 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.

For a closer look at conditions across Puerto Rico, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in El Combate with an average of 68 mm to heavy rainfall in Naguabo with 162 mm.

Average sunshine

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

For a more detailed look at Puerto Rico's conditions throughout the year, check out our Puerto Rico climate page.

Where to go in Puerto Rico in August

Find more information for the most popular destinations in the Puerto Rico on the map below. Click on a destination dot for more details.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

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

Popular destinations

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

San Juan

In August San Juan generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 25°C and high monthly rainfall. So on average the conditions are tolerable that month.

San Juan
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
31°C 
25°C 
281 hours 
102 mm 
19 days 
31°C 
25°C 
267 hours 
118 mm 
20 days 
31°C 
25°C 
236 hours 
159 mm 
18 days 
Climate in San Juan

Rincon

In August Rincon generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Rincon
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
26°C 
60 mm 
18 days 
30°C 
27°C 
77 mm 
18 days 
30°C 
27°C 
111 mm 
17 days 
Climate in Rincon

Vieques

In August Vieques generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.

Vieques
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
29°C 
26°C 
281 hours 
131 mm 
19 days 
30°C 
27°C 
267 hours 
149 mm 
20 days 
30°C 
27°C 
236 hours 
176 mm 
18 days 
Climate in Vieques

Culebra

In August Culebra generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.

Culebra
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
29°C 
27°C 
110 mm 
19 days 
30°C 
27°C 
130 mm 
20 days 
30°C 
27°C 
159 mm 
18 days 
Climate in Culebra

Fajardo

In August Fajardo generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are tolerable that month.

Fajardo
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
26°C 
281 hours 
139 mm 
19 days 
30°C 
26°C 
267 hours 
152 mm 
20 days 
30°C 
26°C 
236 hours 
177 mm 
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 visit Puerto Rico?

In our opinion, August may not be the ideal time to visit Puerto Rico due to the typically tolerable weather in San Juan.

On average, the best time to visit Puerto Rico is in January, February, March and December with generally perfect weather in San Juan. The weather in May, July, August, September, October and November, on the other hand, tends to be tolerable.

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.