August weather forecast
Angra dos Reis, Brazil

August in Angra dos Reis introduces the slow climb of temperatures as winter begins to loosen its grip. Whereas sea temperature is at 21.8°C (71.2°F), registering a minimal increase from July. This is the perfect time for locals and tourists to soak in the city's picturesque views before the summer heat kicks in. An increase in the length of the day corresponds to an increase in sunshine hours. Despite changes in the weather, the UV index remains relatively constant.

Temperature

The average high-temperature in August in Angra dos Reis, at a still moderately hot 25°C (77°F), reveals a modest deviation from July's 24.6°C (76.3°F). In August, the nighttime temperature lowers to an average of 17.2°C (63°F).

Humidity

In August, the average relative humidity is 81%.

Rainfall

In Angra dos Reis, Brazil, during August, the rain falls for 9 days and regularly aggregates up to 78mm (3.07") of precipitation. In Angra dos Reis, during the entire year, the rain falls for 165 days and collects up to 1977mm (77.83") of precipitation.

Sea temperature

In August, the average sea temperature is 21.8°C (71.2°F).
Note: Swimming is not a pleasurable activity for most people when the water temperature is 21.8°C (71.2°F). Breathing control gets harder as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Angra dos Reis, the average length of the day in August is 11h and 21min.
On the first day of the month, sunrise is at 06:30 and sunset at 17:36. On the last day of August, sunrise is at 06:07 and sunset at 17:46 -03.

Sunshine

The average sunshine in August in Angra dos Reis is 5h.

UV index

In August, the average daily maximum UV index in Angra dos Reis is 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in August translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Attention! UV radiation is markedly stronger with water and sand reflections.