Average sea water temperature in September:
+71.2°F
| Minimum sea water temperature in September: | 73.6°F |
| Maximum sea water temperature in September: | 67.1°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 72.2°F. The highest and lowest sea temperatures during the month were 72.9°F and 71.2°F.
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| Rio das Ostras |
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| Rio das Ostras |
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| Rio das Ostras |
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| Rio das Ostras |
Monthly sea water temperature in Rio das Ostras, °F
Which Brazil resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Macapa | 86.5°F | 85.5°F |
| Belem | 84.9°F | 84.3°F |
| Ananindeua | 84.5°F | 84.1°F |
| Sao Luis | 83.0°F | 82.5°F |
| Sao Jose de Ribamar | 82.8°F | 82.5°F |
| Jericoacoara | 81.7°F | 80.7°F |
| Ilha de Itamaraca | 81.7°F | 80.1°F |
| Fortaleza | 81.6°F | 80.4°F |
| Paracuru | 81.6°F | 80.6°F |
| Jaboatao dos Guararapes | 81.5°F | 80.0°F |
| Recife | 81.5°F | 79.9°F |
| Paulista | 81.4°F | 80.0°F |
| Natal | 81.4°F | 79.9°F |
| Olinda | 81.3°F | 80.0°F |
| Joao Pessoa | 81.2°F | 79.8°F |
| Maceio | 80.4°F | 79.7°F |
| Salvador | 79.8°F | 78.5°F |
| Aracaju | 79.7°F | 79.0°F |
| Lauro de Freitas | 79.3°F | 78.4°F |
| Ilheus | 79.0°F | 78.0°F |
Best time for vacation in Rio das Ostras
Rio das Ostras on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Rio das Ostras
Local time: 05:49
September 15, tuesday
0600
66°F
S
9 mph
9 mph
0900
70°F
SW
14 mph
14 mph
1200
72°F
NW
7 mph
7 mph
1500
70°F
NE
11 mph
11 mph
1800
70°F
NE
11 mph
11 mph
2100
68°F
NE
10 mph
10 mph
September 16, wednesday
0000
66°F
NE
6 mph
6 mph
0300
66°F
NE
9 mph
9 mph
