- Temperature
- Feels like
- Rain
- Wind
- Sea water
- Waves
- Updated
Sea water: 19.8°C, cooling slightly to around 19°C over the coming days
Waves: 0.7m
At 19.8 °C the water in Costa da Caparica is fresh. Fine for a dip, but the first minute bites.
Sunrise: 06:34 · Sunset: 20:52 · Day length: 14h 18m
| Day | Sea water | Waves |
|---|---|---|
| Monday 27/07 | 19.8 °C | 0.7 m |
| Tuesday 28/07 | 19.8 °C | 0.7 m |
| Wednesday 29/07 | 19.5 °C | 0.6 m |
| Thursday 30/07 | 19.1 °C | 0.6 m |
| Friday 31/07 | 18.6 °C | 0.7 m |
| Saturday 01/08 | 18.9 °C | 0.8 m |
| Sunday 02/08 | 18.7 °C | 0.7 m |
| Month | Average water |
|---|---|
| January | 15.3 °C |
| February | 14.9 °C |
| March | 15.0 °C |
| April | 16.3 °C |
| May | 16.9 °C |
| June | 18.4 °C |
| July | 18.3 °C |
| August | 18.1 °C |
| September | 17.7 °C |
| October | 18.3 °C |
| November | 17.6 °C |
| December | 15.9 °C |
Monthly averages for 2022–2025.
This page shows the water temperature at Costa da Caparica today and over the next seven days, so you can pick the best beach day before you go.
Sea temperature moves much more slowly than air temperature. A hot afternoon does not warm the ocean, and a windy day can cool it fast. Checking the water itself is the only reliable way to know what to expect.
Costa da Caparica lines up kilometres of unbroken west-facing sand across the Tagus from Lisbon. It is the city's beach, but the sea is properly Atlantic: the northerly wind and coastal upwelling keep the water fresh through most of the summer.
The water is warmest in June, averaging 18.4 °C, and coldest in February at 14.9 °C. On the west coast the peak arrives late, in early autumn, because summer upwelling keeps pulling cold deep water to the surface.
The ocean gains and loses heat far more slowly than land, so it runs months behind the seasons. On top of that, the summer northerly wind pushes surface water offshore and draws cold deep water up in its place, which is why a heatwave on land so often coincides with a colder sea.
Caparica is surf territory, with schools along the whole strip and approachable waves most days. Paragliders soar the fossil cliff at Fonte da Telha, kitesurfing rules the southern beaches and the beach bars fill from early summer to September.