Portugal · Atlantic Europe
Nazaré
Sea
21.0°C69.8°F
Air
UV
Refreshing
⁦18–23°C⁩

Last updated ·

Today, September 13, the sea temperature at Nazaré is 21 °C (70 °F). That is 3 °C warmer than the usual 18 °C in September. Comfortable for swimming in September.

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Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in September (18.0°C). Coldest in February (14.3°C). Comfortable for swimming in September.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January13.7°C14.7°C15.5°C9.4°C11.3°C14.2°C
February13.7°C14.3°C15.2°C10.2°C12.4°C15.8°C
March13.7°C14.3°C14.7°C10.9°C13.2°C16.4°C
April14.5°C15.4°C16.0°C12.6°C15.4°C18.9°C
May15.9°C16.2°C16.6°C14.2°C17.0°C20.6°C
June16.2°C17.2°C18.1°C16.4°C19.0°C22.6°C
July16.8°C17.4°C17.8°C17.5°C20.5°C24.8°C
August17.0°C17.7°C18.4°C17.6°C20.5°C25.0°C
September16.1°C18.0°C19.1°C17.0°C19.7°C23.4°C
October16.7°C17.6°C19.5°C16.4°C18.5°C21.8°C
November15.6°C16.9°C17.7°C12.8°C14.5°C17.1°C
December14.3°C15.4°C16.2°C10.7°C12.4°C15.0°C

About Nazaré

On Portugal's Costa de Prata, Nazaré owes its fame to the 230-kilometre Nazaré Canyon, which funnels Atlantic swell into the giants of Praia do Norte, where Sebastian Steudtner rode a record 26.2-metre wave below the Forte de São Miguel Arcanjo lighthouse in 2020. South of the cliff, Praia da Nazaré offers a kilometre of fine sand calm enough for summer swimming, while Praia do Salgado runs wilder down the coast. The ocean stays cool at 17-19 °C63-66 °F from July through September, Lisbon airport 75 minutes south by the A8.

Frequently asked questions

Today, September 13, the sea at Nazaré is 21 °C (70 °F)70 °F (21 °C) – refreshing, good for a short swim. The usual September average is 18 °C64 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Nazaré is 21 °C70 °F.

In June the sea at Nazaré (Portugal) averages 17.2 °C63 °F – cold, most people reach for a wetsuit. It keeps warming until September, when it peaks at 18 °C64 °F.

In November the sea at Nazaré (Portugal) still averages 16.9 °C62 °F – cold, most people reach for a wetsuit. It peaks in September at 18 °C64 °F and cools slowly from there.