Current sea water temperature:
+66.0°F
| Minimum sea water temperature in October: | 68.2°F |
| Maximum sea water temperature in October: | 59.7°F |
| Average sea water temperature in October: | 64.4°F |
| more information | |
14 days
forecast
forecast
| Cascais |
monthly
weather
weather
| Cascais |
Sea water temperature for the last 10 days:
| October 6 | 66.0°F | October 1 | 64.9°F |
| October 5 | 66.6°F | September 30 | 63.9°F |
| October 4 | 65.1°F | September 29 | 63.7°F |
| October 3 | 64.9°F | September 28 | 64.0°F |
| October 2 | 64.9°F | September 27 | 64.4°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 64.6°F. The highest and lowest sea temperatures during the month were 66.9°F and 62.1°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 65.8°F. The highest and lowest sea temperatures during the month were 67.5°F and 63.7°F.
current
weather
weather
| Cascais |
weather in
October
October
| Cascais |
Best time for vacation in Cascais
Cascais on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 12:10
October 06, tuesday
1500
68°F
E
12 mph
12 mph
1800
66°F
SE
11 mph
11 mph
2100
66°F
SE
9 mph
9 mph
October 07, wednesday
0000
66°F
SE
7 mph
7 mph
0300
66°F
SE
7 mph
7 mph
0600
64°F
SE
10 mph
10 mph
0900
64°F
S
11 mph
11 mph
1200
66°F
S
11 mph
11 mph
