Annual average weather for Grumari Beach, Barra da Tijuca, Brazil

Annual Temperature for Grumari Beach

The hottest month in Grumari Beach is February when the average maximum temperature is 33°, average temperature is 29° and average minimum temperature is 24°.

The coolest month in Grumari Beach is July when the average maximum temperature is 26°, average temperature is 22° and average minimum temperature is 18°.

Annual Sunshine for Grumari Beach

The longest days in Grumari Beach are in December, with an average of 13.5 hours of daylight per day. June has the shortest days with an average of 10.7 hours of daylight per day.

The sunniest days in Grumari Beach are in October which has the most hours of sunshine per day with an average of 8.1 hours of sunshine per day, making it a sunny month with few clouds. December has the least sunshine with an average of 5.8 hours of sunshine per day, making it a sunny month that is overcast at times.

The ultraviolet index is the highest in January when it reaches 15.4 and lowest in June when it reaches 5.7.

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.

Annual Sea Temperature for Grumari Beach

The warmest sea water temperatures in Grumari Beach are found in February when they peak at 27° and lowest in August when they dip to 21°.

The sea is best for swimming between December and May when the temperature is above 24° which is warm and pleasant for relaxing and swimming for long periods.

Annual Humidity for Grumari Beach

The most humid month in Grumari Beach is January with a dew point (an indicator of humidity) of 25° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

The least humid month in Grumari Beach is July with a dew point of 20° which is somewhat uncomfortable for most people in cities but fine on a beach.

Annual Wind Speed for Grumari Beach

The most windy month in Grumari Beach is September when the average maximum windspeed is 18kmh and the average wind speed is 9kmh.

The least windy month in Grumari Beach is June when the average maximum windspeed is 14kmh and the average wind speed is 7kmh.

Monthly Averages

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