Average sea water temperature in September:
+64.4°F
| Minimum sea water temperature in September: | 69.4°F |
| Maximum sea water temperature in September: | 60.3°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 64.3°F. The highest and lowest sea temperatures during the month were 65.8°F and 62.4°F.
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| Porto Alegre |
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| Porto Alegre |
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| Porto Alegre |
14 days
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| Porto Alegre |
Monthly sea water temperature in Porto Alegre, °F
Which Brazil resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Macapa | 85.5°F | 86.3°F |
| Belem | 84.3°F | 84.7°F |
| Ananindeua | 84.1°F | 84.5°F |
| Sao Luis | 82.5°F | 82.4°F |
| Sao Jose de Ribamar | 82.5°F | 82.3°F |
| Jericoacoara | 80.7°F | 80.2°F |
| Paracuru | 80.6°F | 80.0°F |
| Fortaleza | 80.4°F | 79.9°F |
| Ilha de Itamaraca | 80.1°F | 80.0°F |
| Paulista | 80.0°F | 79.9°F |
| Olinda | 80.0°F | 79.9°F |
| Jaboatao dos Guararapes | 80.0°F | 80.0°F |
| Recife | 79.9°F | 79.9°F |
| Natal | 79.9°F | 79.7°F |
| Joao Pessoa | 79.8°F | 79.7°F |
| Maceio | 79.7°F | 80.1°F |
| Aracaju | 79.0°F | 79.5°F |
| Salvador | 78.5°F | 79.3°F |
| Lauro de Freitas | 78.4°F | 79.2°F |
| Ilheus | 78.0°F | 79.1°F |
Best time for vacation in Porto Alegre
Porto Alegre on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Porto Alegre
Local time: 17:21
December 16, tuesday
1800
72°F
N
11 mph
11 mph
2100
68°F
NW
8 mph
8 mph
December 17, wednesday
0000
64°F
NW
6 mph
6 mph
0300
64°F
W
5 mph
5 mph
0600
66°F
W
4 mph
4 mph
0900
73°F
NW
2 mph
2 mph
1200
77°F
N
6 mph
6 mph
1500
77°F
NW
9 mph
9 mph
