Weather in San Juan, Puerto Rico in August

So you're interested in going to San Juan, Puerto Rico in August

August is a hot and very rainy time for sunbathing in San Juan. August is an excellent month for swimming in San Juan with very warm sea temperatures. Consider visiting San Juan in the months of January, February, March, April, for the best beach weather. Also consider one of our other suggestions for August.

Temperature in San Juan in August

The average maximum temperature in San Juan in August is 32°. The average maximum temperature is 32° in the previous month and 35° in the next month.

The average temperature in San Juan in August is 29°. The average temperature ranges is 29° in the previous month and 29° in the next month.

The average minimum temperature in San Juan in August is 26°. The minimum temperature is 26° in the previous month and 26° in the next month.

Sunshine in San Juan in August

The average day light hours per day in San Juan in August are 12.8 and there are 8.7 hours of sunshine per day on average during August making it a sunny month with few clouds.

The ultraviolet index in San Juan in August is typically 13.1 during August. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in San Juan in August

The average sea water temperature in San Juan in August is 28.3° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in San Juan in August

The average total rainfall in San Juan in August is 225.7cm and on average there are 24.3 rainy days in August making it a very wet time to visit the beach.

Humidity in San Juan in August

The maximum dew point (an indicator of humidity) in San Juan in August is 25° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 25° in the previous month and 25° in the next month.

The average maximum relative humidity in San Juan in August is typically 87.9%. The maximum relative humidity is 87.2% in the previous month and 88% in the next month.

The average relative humidity in San Juan in August is typically 75.9%. The average relative humidity is 75.4% in the previous month and 75.6% in the next month.

Wind Speed in San Juan in August

The average maximum wind speed in San Juan in August is typically 32kmh. The average maximum wind speed is 34kmh in the previous month and 28kmh in the next month.

The average wind speed in San Juan in August is typically 13kmh. The average wind speed is 14kmh in the previous month and 9kmh in the next month.

The average wind direction in San Juan in August is from the East.

Monthly Averages

Book Accomodation Deals