- Temperature
- Feels like
- Rain
- Wind
- Sea water
- Waves
- Updated
Sea water: 21.4°C, cooling slightly to around 21°C over the coming days
Waves: 1.6m
At 21.4 °C the water in Nazaré is pleasant for swimming by Atlantic standards.
| Day | Sea water | Waves |
|---|---|---|
| Saturday 25/07 | 21.4 °C | 1.6 m |
| Sunday 26/07 | 20.3 °C | 1.7 m |
| Monday 27/07 | 20.7 °C | 1.4 m |
| Tuesday 28/07 | 21.2 °C | 1.3 m |
| Wednesday 29/07 | 21.4 °C | 1.0 m |
| Thursday 30/07 | 21.2 °C | 0.8 m |
| Friday 31/07 | 20.7 °C | 0.9 m |
The water temperature shown here comes from marine forecast models with a dedicated ocean grid point for Nazaré, updated every day. The table covers 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.
Nazaré faces the open Atlantic on the west coast, above the underwater canyon that funnels the giant winter waves toward Praia do Norte. The same exposed position keeps the sea cool even in August, and the surf changes quickly, so check both the water and the waves.
Usually in September and October. Even then the west coast rarely climbs past 18 to 20 °C, 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.
Once a day, every morning, from marine forecast models. The page shows today's water temperature in Nazaré, the outlook for seven days and the wave height for each day.