Portugal Temperature Map

Peniche sea water temperature

Sea water: 19.1°C, warming slightly to around 20°C over the coming days

Waves: 1.4m

At 19.1 °C the water in Peniche is fresh. Fine for a dip, but the first minute bites.

Sunrise: 06:33 · Sunset: 20:55 · Day length: 14h 22m

Sea temperature in Peniche for the next 7 days

Day Sea water Waves
Monday 27/07 19.1 °C 1.4 m
Tuesday 28/07 19.4 °C 1.2 m
Wednesday 29/07 19.2 °C 1.0 m
Thursday 30/07 19.0 °C 0.9 m
Friday 31/07 19.0 °C 0.9 m
Saturday 01/08 19.6 °C 1.0 m
Sunday 02/08 19.8 °C 1.0 m

Average sea temperature in Peniche, month by month

Month Average water
January 15.5 °C
February 15.1 °C
March 15.0 °C
April 15.8 °C
May 16.1 °C
June 17.6 °C
July 17.3 °C
August 16.7 °C
September 16.8 °C
October 18.2 °C
November 17.6 °C
December 16.1 °C

Monthly averages for 2022–2025.

This page shows the water temperature at Peniche 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.

Peniche occupies a peninsula with the sea on almost every side and the Berlengas islands offshore. There is nearly always a beach sheltered from the wind somewhere, from Supertubos to Baleal, but the water is among the coldest on the coast and summer fog is not rare.

Frequently asked questions

When is the sea warmest in Peniche?

The water is warmest in October, averaging 18.2 °C, and coldest in March at 15.0 °C. On the west coast the peak arrives late, in early autumn, because summer upwelling keeps pulling cold deep water to the surface.

Why is the water colder than the air in Peniche?

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.

What can you do in the sea in Peniche?

Surfing all year round, from school-lined Baleal to the barrels of Supertubos, is what brings most people here. The alternative is boarding a boat to the Berlengas for diving and snorkelling in clear nature-reserve water.

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