Average sea water temperature in April:
+59.5°F
| Minimum sea water temperature in April: | 63.5°F |
| Maximum sea water temperature in April: | 56.3°F |
Daily sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 59.4°F. The highest and lowest sea temperatures during the month were 61.5°F and 57.7°F.
Monthly sea water temperature in Cascais, °F
Which Portugal resorts have warmest sea in April?
| Place name | April 2026 | April 2025 |
|---|---|---|
| Madeira | 64.2°F | 66.5°F |
| Funchal | 64.2°F | 66.5°F |
| Canico | 64.1°F | 66.4°F |
| Porto Santo Island | 63.5°F | 65.3°F |
| Algarve | 62.2°F | 62.3°F |
| Faro | 62.2°F | 62.3°F |
| Quarteira | 62.1°F | 62.0°F |
| Tavira | 62.0°F | 62.3°F |
| Albufeira | 61.9°F | 61.9°F |
| Portimao | 61.7°F | 61.5°F |
| Alvor | 61.5°F | 61.5°F |
| Lisbon | 61.3°F | 60.9°F |
| Santa Maria Island | 61.3°F | 62.6°F |
| Lagos | 61.2°F | 61.4°F |
| Faial Island | 60.9°F | 60.9°F |
| Pico Island | 60.9°F | 60.9°F |
| Corvo Island | 60.8°F | 60.8°F |
| Sao Jorge | 60.8°F | 61.0°F |
| Ponta Delgada | 60.7°F | 61.8°F |
| Sao Miguel | 60.6°F | 61.6°F |
Best time for vacation in Cascais
Cascais on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Cascais
Local time: 03:38
May 17, sunday
0600
59°F
S
16 mph
16 mph
0900
61°F
SE
15 mph
15 mph
1200
61°F
SE
16 mph
16 mph
1500
61°F
SE
17 mph
17 mph
1800
61°F
S
19 mph
19 mph
2100
59°F
S
19 mph
19 mph
May 18, monday
0000
59°F
S
17 mph
17 mph
0300
57°F
S
14 mph
14 mph
