Monthly weather forecast and climate
Rio das Ostras, Brazil

Average sea temperature - Rio das Ostras, Brazil

The best month for swimming (with the highest average sea temperature) is March (25.8°C).
The coldest month (with the lowest average sea temperature) is September (21.9°C).

Average daylight - Rio das Ostras, Brazil

The month with the longest days is December (Average daylight: 13.5h).
The month with shortest days is June (Average daylight: 10.8h).