Average sea water temperature in July:
+63.8°F
| Minimum sea water temperature in July: | 67.8°F |
| Maximum sea water temperature in July: | 58.5°F |
Daily sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 66.4°F. The highest and lowest sea temperatures during the month were 67.8°F and 64.6°F.
Monthly sea water temperature in Cascais, °F
Which Portugal resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Tavira | 73.8°F | 70.5°F |
| Madeira | 73.4°F | 73.5°F |
| Funchal | 73.4°F | 73.5°F |
| Faro | 73.1°F | 70.4°F |
| Algarve | 73.1°F | 70.4°F |
| Canico | 73.0°F | 73.3°F |
| Porto Santo Island | 73.0°F | 72.1°F |
| Quarteira | 72.3°F | 69.4°F |
| Albufeira | 71.9°F | 68.9°F |
| Portimao | 71.6°F | 68.8°F |
| Flores Island | 71.2°F | 71.1°F |
| Alvor | 71.2°F | 68.1°F |
| Lisbon | 71.1°F | 69.1°F |
| Corvo Island | 71.1°F | 71.0°F |
| Santa Maria Island | 70.3°F | 71.8°F |
| Setubal | 70.3°F | 67.6°F |
| Lagos | 70.2°F | 67.0°F |
| Ponta Delgada | 69.7°F | 71.1°F |
| Sao Jorge | 69.7°F | 71.4°F |
| Graciosa | 69.6°F | 71.7°F |
Best time for vacation in Cascais
Cascais on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 14:54
July 16, thursday
1500
73°F
E
11 mph
11 mph
1800
72°F
SE
12 mph
12 mph
2100
70°F
SE
9 mph
9 mph
July 17, friday
0000
68°F
SE
9 mph
9 mph
0300
66°F
S
8 mph
8 mph
0600
66°F
S
6 mph
6 mph
0900
68°F
S
8 mph
8 mph
1200
72°F
SE
12 mph
12 mph
