Measurements:
°C
°F
Sao Sebastiao
68°F
SW 3 mph
Feels like: 68°F
Precip: 85%
World Resorts Brazil Sao Sebastiao Weather August Weather in Sao Sebastiao

Sao Sebastiao Weather: August

Average Day Temperature: 74.2°F
Average Night Temperature: 65.5°F
Sea Water Temperature: 72.8°F
Number of Sunny Days: 14 days
Sunshine Hours: 11.0 - 11.6 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.2 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 87°F. The lowest night temperature was 58°F. The average values for day and night temperatures during August were 73.0°F и 63.8°F respectivly.

Sao Sebastiao Water Sea Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Sao Sebastiao was 71.6°F. The maximum and minimum values were 69.8°F and 74.2°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Sao Sebastiao is 1.2 in. It makes august one of the least rainy months of the year.

Wind Speed in August, mph

The average wind speed in August is 6.1 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sao Sebastiao in August is 6.8 hours.

Best Time to Visit Sao Sebastiao
The most sunny months:
July 18 days
June 15 days
May 15 days
The most warm months:
February 84.4 °F
March 83.9 °F
January 83.8 °F
Warmest sea temperature:
February 84.8 °F
March 83.9 °F
January 83.2 °F
The most cold months:
July 74.0 °F
August 74.2 °F
June 75.9 °F
The most rainy months:
December 7 days
February 6 days
January 5 days
The most windy months:
October 6 mph
September 6 mph
August 6 mph

Sao Sebastiao on the Weather Map

24 Hours Weather Forecast
Sao Sebastiao
Local time: 06:13
18 dec, thursday
0900 72°F
SW
6 mph
1200 78°F
W
6 mph
1500 76°F
SW
8 mph
1800 74°F
SW
9 mph
2100 72°F
SW
8 mph
19 dec, friday
0000 72°F
SW
9 mph
0300 72°F
SW
7 mph
0600 72°F
SW
5 mph