Average sea water temperature in October:
+64.4°F
| Minimum sea water temperature in October: | 68.2°F |
| Maximum sea water temperature in October: | 59.7°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 64.9°F. The highest and lowest sea temperatures during the month were 66.6°F and 63.0°F.
Monthly sea water temperature in Cascais, °F
Which Portugal resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Madeira | 74.9°F | 74.1°F |
| Funchal | 74.9°F | 74.1°F |
| Canico | 74.5°F | 73.7°F |
| Porto Santo Island | 73.7°F | 73.3°F |
| Santa Maria Island | 72.6°F | 73.3°F |
| Ponta Delgada | 71.9°F | 72.0°F |
| Faial Island | 71.8°F | 70.9°F |
| Flores Island | 71.7°F | 70.6°F |
| Pico Island | 71.7°F | 70.9°F |
| Sao Miguel | 71.6°F | 71.9°F |
| Sao Jorge | 71.6°F | 71.3°F |
| Corvo Island | 71.5°F | 70.3°F |
| Quarteira | 71.4°F | 68.5°F |
| Tavira | 71.4°F | 68.9°F |
| Algarve | 71.3°F | 68.8°F |
| Faro | 71.3°F | 68.8°F |
| Albufeira | 71.2°F | 68.1°F |
| Portimao | 71.1°F | 67.6°F |
| Graciosa | 71.0°F | 70.7°F |
| Alvor | 71.0°F | 67.5°F |
Best time for vacation in Cascais
Cascais on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 13:18
October 26, monday
1500
63°F
E
6 mph
6 mph
1800
61°F
SE
6 mph
6 mph
2100
59°F
SE
5 mph
5 mph
October 27, tuesday
0000
59°F
SE
4 mph
4 mph
0300
59°F
NW
1 mph
1 mph
0600
59°F
NW
2 mph
2 mph
0900
63°F
NW
4 mph
4 mph
1200
66°F
E
2 mph
2 mph
