← Sea temperature
Cascais bay
17.6°CNowWear now3/2 fullsuit
air17°CPeak UV1 Low
8-day trend
Water temperature by day
| Day | low | high |
|---|---|---|
| Wed 11 | 17.4° | 17.7° |
| Thu 12 | 17.7° | 17.7° |
| Fri 13 | 17.6° | 17.7° |
| Sat 14 | 17.6° | 17.8° |
| Sun 15 | 17.7° | 17.8° |
| Mon 16 | 17.7° | 17.8° |
| Tue 17 | 17.7° | 17.8° |
| Wed 18 | 17.7° | 17.8° |
How this is calculated
Modelled sea surface temperature (Open-Meteo), not a buoy reading.
Guides Snorkeling Conditions in Portugal: How to Read Them · Portugal Surf Seasons: What to Expect All Year · Tides and Surf Portugal: Best Tide for Surfing