Current sea water temperature:
+65.3°F
| Minimum sea water temperature in June: | 67.6°F |
| Maximum sea water temperature in June: | 57.7°F |
| Average sea water temperature in June: | 63.1°F |
| more information | |
14 days
forecast
forecast
| Cascais |
monthly
weather
weather
| Cascais |
Sea water temperature for the last 10 days:
| June 26 | 65.3°F | June 21 | 63.9°F |
| June 25 | 65.3°F | June 20 | 62.8°F |
| June 24 | 64.2°F | June 19 | 62.2°F |
| June 23 | 63.5°F | June 18 | 61.7°F |
| June 22 | 63.1°F | June 17 | 61.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Cascais?
Based on the data about daily sea water temperature for the last three years the warmest sea in Cascais was noticed in September, October and August.
Monthly Sea Temperatures in Cascais, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 62.6°F. The highest and lowest sea temperatures during the month were 65.5°F and 60.3°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 63.2°F. The highest and lowest sea temperatures during the month were 65.8°F and 61.5°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 65.2°F. The highest and lowest sea temperatures during the month were 67.5°F and 63.3°F.
current
weather
weather
| Cascais |
weather in
June
June
| Cascais |
Best time for vacation in Cascais
Cascais on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 11:59
June 26, friday
1200
70°F
NE
9 mph
9 mph
1500
70°F
NE
9 mph
9 mph
1800
70°F
NE
9 mph
9 mph
2100
68°F
E
9 mph
9 mph
June 27, saturday
0000
66°F
E
7 mph
7 mph
0300
66°F
E
6 mph
6 mph
0600
66°F
E
4 mph
4 mph
0900
66°F
NE
6 mph
6 mph
