Pontal do Atalaia sea temperature today: 22°C – beach water temperature, Pontal do Atalaia, Brazil
Interactive map
Brazil · Atlantic
Pontal do Atalaia
Sea
22.3°C72.1°F
Air
–
UV
–
Refreshing
⁦18–23°C⁩

Last updated ·

Today, September 14, the sea temperature at Pontal do Atalaia is 22.3 °C (72 °F). That is 0.9 °C warmer than the usual 21.5 °C in September. Comfortable for swimming year-round.

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Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in March (25.3°C). Coldest in September (21.4°C). Comfortable for swimming year-round.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January23.6°C24.4°C25.2°C24.3°C24.7°C25.0°C
February23.9°C24.7°C25.8°C24.6°C24.9°C25.4°C
March24.3°C25.3°C25.9°C24.9°C25.2°C25.6°C
April24.8°C24.9°C25.2°C23.9°C24.3°C24.6°C
May23.6°C23.8°C24.0°C22.7°C23.1°C23.5°C
June21.9°C22.6°C23.4°C21.6°C22.0°C22.6°C
July21.4°C22.0°C22.6°C21.0°C21.3°C21.8°C
August21.2°C21.5°C22.2°C20.8°C21.2°C21.6°C
September20.8°C21.4°C22.3°C21.2°C21.6°C22.1°C
October21.1°C22.1°C22.8°C21.8°C22.2°C22.5°C
November22.4°C23.2°C24.0°C22.6°C22.9°C23.3°C
December23.5°C24.0°C24.8°C23.8°C24.1°C24.6°C

About Pontal do Atalaia

Pontal do Atalaia is the hundred-metre rocky headland that closes Arraial do Cabo at the east end of Rio de Janeiro's Costa do Sol, looking across to Ilha do Cabo Frio over water that cold-water upwelling turns turquoise – the only Brazilian shore known as Caribe Brasileiro. Praia do Forno hides at the foot of the cliff, a hike-in cove with calm, glass-clear shallows; Prainha sits beside the town with broader sand and easy access. The same upwelling keeps the sea cool: 22–24 °C72–75 °F from December through March.

Frequently asked questions

Today, September 14, the sea at Pontal do Atalaia is 22.3 °C (72 °F)72 °F (22.3 °C) – refreshing, good for a short swim. The usual September average is 21.5 °C71 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Pontal do Atalaia is 22.3 °C72 °F.

Yes – the sea at Pontal do Atalaia (Atlantic, Brazil) stays swimmable all year. September is the coolest month, averaging 21.5 °C71 °F – refreshing, good for a short swim; the warmest is March at 25.3 °C78 °F.

In March, at 25.3 °C78 °F on average. The coolest month is September at 21.5 °C71 °F – still above the 18 °C64 °F swimming line, so there is no off-season for swimming.