Average sea water temperature in August:
+68.1°F
| Minimum sea water temperature in August: | 75.4°F |
| Maximum sea water temperature in August: | 61.7°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 66.8°F. The highest and lowest sea temperatures during the month were 70.0°F and 64.4°F.
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Monthly sea water temperature in Portimao, °F
Which Portugal resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Madeira | 76.5°F | 75.2°F |
| Funchal | 76.5°F | 75.2°F |
| Canico | 76.4°F | 75.0°F |
| Porto Santo Island | 76.0°F | 73.7°F |
| Corvo Island | 75.1°F | 75.0°F |
| Santa Maria Island | 74.7°F | 74.8°F |
| Flores Island | 74.5°F | 75.0°F |
| Sao Jorge | 74.4°F | 75.1°F |
| Pico Island | 74.3°F | 74.6°F |
| Faial Island | 74.3°F | 74.5°F |
| Graciosa | 74.2°F | 75.3°F |
| Terceira Island | 73.6°F | 74.3°F |
| Sao Miguel | 73.2°F | 74.1°F |
| Ponta Delgada | 73.1°F | 74.2°F |
| Lisbon | 69.9°F | 70.2°F |
| Setubal | 68.8°F | 68.4°F |
| Tavira | 68.7°F | 73.9°F |
| Faro | 68.5°F | 73.4°F |
| Algarve | 68.5°F | 73.4°F |
| Quarteira | 67.3°F | 72.5°F |
Best time for vacation in Portimao
Portimao on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Portimao
Local time: 17:53
September 16, wednesday
1800
75°F
SE
10 mph
10 mph
2100
63°F
SE
9 mph
9 mph
September 17, thursday
0000
63°F
S
9 mph
9 mph
0300
63°F
S
8 mph
8 mph
0600
61°F
S
7 mph
7 mph
0900
68°F
S
6 mph
6 mph
1200
82°F
S
8 mph
8 mph
1500
90°F
SW
5 mph
5 mph
