Weather in Grumari Beach, Barra da Tijuca, Brazil in September

As spring begins in September, the weather starts to warm up at Grumari Beach. The beach may begin to see an increase in visitors, especially during weekends and holidays such as Brazil's Independence Day on September 7th. However, the crowds are still relatively small compared to the peak season.

The average maximum temperature in Grumari Beach in September is 28°C (82°F). The average maximum temperature is 27°C (81°F) in the previous month and 28°C (83°F) in the next month.

The average temperature in Grumari Beach in September is 24°C (74°F). The average temperature is 23°C (73°F) in the previous month and 24°C (76°F) in the next month.

The average minimum temperature in Grumari Beach in September is 20°C (68°F). The minimum temperature is 18°C (65°F) in the previous month and 21°C (70°F) in the next month.

During September the average day light hours are 12 per day in Grumari Beach. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 8.0hrs making the days quite long and bright.

The ultraviolet index in Grumari Beach in September is typically 10.7 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. 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.