Puerto Rico in august: average Weather, Temperature and Climate, Where to go?
Weather in Puerto Rico in august 2026
Below, check out the weather forecast for the month of august for most popular cities in Puerto Rico. These forecasts are statistics for august from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in august in San Juan
very bad weather UV index: 7
Weather at 6am
83°F
Partly Cloudy
48% of time
27%
21%
3%
Weather at 12pm
86°F
Clear/Sunny
52% of time
25%
19%
3%
Weather at 6pm
83°F
Clear/Sunny
44% of time
39%
14%
2%
Weather at 3am
81°F
44%
28%
22%
4%
Where to go in Puerto Rico in august?
Where to go in Puerto Rico in august: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go in Puerto Rico in august when it comes to the weather?
Remember:
The climate in Puerto Rico in august ranges from good to tolerable depending on the region and city.
August is not the best month to go to in Puerto Rico. The weather everywhere is OK but just acceptable: in Arecibo, Caguas, Mayagüez, Bayamón, Ponce and San Juan. The sun is not there all the time and you might make you wet by rain regularly. However, if you don't plan a beach and sun travel in Puerto Rico but rather cultural visits, this climate could be appropriate. In addition, there are definitely fewer tourists at this time of year.
Climate in Puerto Rico in august
Climate in San Juan in august
In the month of august, the mean temperature in San Juan is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is very warm in that locality in the month of august. With 3.6in over 4 days, you will experience some showers for your trip. But this is reasonably and you will not be too bothered by it.
With a correct climate, august is okay (but not the best time) for traveling in this locality.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 3.6in | ||
| Number of days with rainfall | 4 day(s) (13%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 32% | ||
| Length of day | 12:45 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Mayagüez in august
In the month of august, the mean temperature in Mayagüez is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is very hot here in the month of august. With 9.7in over 16 days, rain may occur throughout your vacations. But this is rather reasonably and it is only of temporary showers.
With a correct climate, august is okay (but not good time) for traveling there.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 9.7in | ||
| Number of days with rainfall | 16 day(s) (53%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 23% | ||
| Length of day | 12:44 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Caguas in august
In the month of august, the mean temperature in Caguas is 85°F (maximum temperature is 86°F and minimum temperature is 81°F). The climate is burning in this location in august. With 7.3in over 9 days, rain may occur during your stay. But this is rather moderate and it is only of temporary showers.
With a correct climate, the month of august is okay (but not the best time) for traveling in this locality.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 81°F | ||
| Rainfall | 7.3in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 38% | ||
| Length of day | 12:45 | ||
| Our opinion at whereandwhen.net | good |
Climate in Arecibo in august
In the month of august, maximum temperature is 86°F and minimum temperature is 81°F (for an average temperature of 85°F). The climate is burning there in august. With 7.1in over 10 days, rain may occur during your stay. But this is pretty reasonably and it is only of temporary showers.
With a correct climate, the month of august is okay (but not the best time) for traveling in this city in Puerto Rico.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 7.1in | ||
| Number of days with rainfall | 10 day(s) (33%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 26% | ||
| Length of day | 12:45 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Bayamón in august
In the month of august, the mean temperature in Bayamón is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is very hot around this city in august. With 4.4in over 5 days, rainfall can happen for your holidays. But this is reasonably and you will not be too bothered by it.
With a correct climate, the month of august is okay (but not good month) for traveling in this city.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 4.4in | ||
| Number of days with rainfall | 5 day(s) (16%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 33% | ||
| Length of day | 12:44 | ||
| Our opinion at whereandwhen.net | good |
All cities in Puerto Rico in august
| San Juan in august | very bad weather |
| Mayagüez in august | very bad weather |
| Caguas in august | very bad weather |
| Arecibo in august | very bad weather |
| Bayamón in august | very bad weather |
| Culebra in august | very bad weather |
| Isla De Mona in august | very bad weather |
| Ponce in august | very bad weather |
| Vieques in august | very bad weather |
| Adjuntas in august | very bad weather |
| Aguadilla in august | very bad weather |
| Aibonito in august | very bad weather |
| Anasco in august | very bad weather |
| Arroyo in august | very bad weather |
| Boqueron in august | very bad weather |
| Cabo Rojo in august | very bad weather |
| Carolina in august | very bad weather |
| Cayey in august | very bad weather |
| Ceiba in august | very bad weather |
| Cidra in august | very bad weather |
| Coamo in august | very bad weather |
| Comerio in august | very bad weather |
| Dorado in august | very bad weather |
| Fajardo in august | very bad weather |
| Florida in august | very bad weather |
| Guanica in august | very bad weather |
| Guayama in august | very bad weather |
| Hatillo in august | very bad weather |
| Hormigueros in august | very bad weather |
| Humacao in august | very bad weather |
| Isabela in august | very bad weather |
| Luquillo in august | very bad weather |
| Manati in august | very bad weather |
| Maunabo in august | very bad weather |
| Punta Santiago in august | very bad weather |
| Quebradillas in august | very bad weather |
| Rincon in august | very bad weather |
| Salinas in august | very bad weather |
| San German in august | very bad weather |
| San Sebastian in august | very bad weather |
| Santa Isabel in august | very bad weather |
| Utuado in august | very bad weather |
| Vega Alta in august | very bad weather |
| Yauco in august | very bad weather |
Weather data for Puerto Rico in august:
Weather data for Puerto Rico in august is derived from an average of the weather forecast since 2009 in Puerto Rico. There is a margin of error and these forecasts are to be considered as general information only. The weather in Puerto Rico can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Puerto Rico.