São Sebastião Weather in October
What's the weather like in São Sebastião (Alagoas) in October 2025?
The climate in São Sebastião during October can be summarized as hot, humid and dry.
October is in the spring in São Sebastião and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 20°C (69°F) is normal.
| Daytime temperature | 30°C 86°F |
|---|---|
| Nightly temperature | 20.4°C 68.7°F |
| Average temperature | 25.2°C 77.4°F |
| Daily sunshine | 8.7 hrs |
| Avg rainfall | 28 mm 1.1 ins |
| Rainy days | 15 days |
| Sea temperature | 26.5°C 79.7°F |
| Humidity | 74% |
| Windspeed | 11.5kph 7 mph |
On average October is the 2nd driest month of the year in São Sebastião with around 28mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.7 hours of sunshine per day.
October temperatures in São Sebastião
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in São Sebastião in October 2025.
Other monthly averages
Best places to visit in October
São Sebastião weather stats
| Hottest month: | January | 31.5°C 88.7°F |
|---|---|---|
| Driest month: | November | 25mm 1ins |
| Sunniest month: | November | 9.5hrs |
| Coldest month: | July | 25.8°C 78.4°F |
| Wettest month: | May | 172mm 6.8ins |
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