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Ericeira weather forecast and sea temperature

Right now in Ericeira: cloudy, 18°C, feels like 18°C.

Expect a mostly clear week in Ericeira, with temperatures staying fairly steady between 17°C and 30°C.

Daytime highs this week are about 5°C above the September average of 23°C.

Sunrise: 07:15 · Sunset: 19:53 · Day length: 12h 38m

Ericeira sea temperature today

Sea water: 17.5°C, practically unchanged all week

Wave height: 2.0m (min 1.2m on 2026-09-12, max 2.2m on 2026-09-16)

Ericeira water temperature for the next 7 days · Sea temperature along the whole coast

Next 24 hours

00:00 18°
01:00 18°
02:00 18°
03:00 18°
04:00 18°
05:00 18°
06:00 18°
07:00 18°
08:00 18°
09:00 20°
10:00 21°
11:00 23°
12:00 25°
13:00 26°
14:00 26°
15:00 26°
16:00 26°
17:00 25°
18:00 24°
19:00 23°
20:00 22°
21:00 21°
22:00 20°
23:00 20°
  1. Fri 11/09 clear skies 26°18°
  2. Sat 12/09 sunny and clear 29°17°
  3. Sun 13/09 bright and clear 30°19°
  4. Mon 14/09 clear skies 29°19°
  5. Tue 15/09 partly cloudy 23°18°
  6. Wed 16/09 a mix of sun and cloud 25°18°
  7. Thu 17/09 clear skies 30°17°

Ericeira is a fishing town perched on the cliffs of the west coast, less than an hour from Lisbon, and Europe's first World Surfing Reserve. Along a few kilometres of coast, world-class waves line up from Ribeira d'Ilhas to Coxos, fed by Atlantic swell that almost never switches off.

The climate is the west coast in its purest form: summers cool by Portuguese standards at 22–25 °C, a northerly wind most afternoons, and mornings that sometimes start grey before opening into sunny afternoons. Winter is mild at 14–15 °C, with rain in Atlantic spells. The sea means business: coastal upwelling holds the water at 16–18 °C even in August.

Climate through the year

Month Min (°C) Max (°C) Rainy days
January 9.4 14.5 11.0
February 10.0 15.5 8.6
March 10.5 15.9 12.6
April 12.1 17.4 13.2
May 14.0 19.4 7.4
June 15.9 20.9 7.8
July 17.1 22.5 4.0
August 17.5 23.1 1.8
September 16.8 22.7 4.7
October 15.6 21.1 10.0
November 12.5 17.3 12.8
December 10.6 15.5 11.5

Going by Ericeira's own averages, August is both the warmest and the most balanced month: highs near 23 °C and about 2 rainy days. The wettest is April with 13 rainy days.

Averages for 2016–2025. A rainy day is one with at least 1 mm of precipitation.

When is the sea warmest in Ericeira?

In September and October, when the northerly wind eases and the water can reach 18–19 °C. Even then it is always a fresh sea: anyone spending long in the water wears a wetsuit most of the year.

Why is Ericeira a World Surfing Reserve?

It was designated in 2011, the first in Europe, for packing seven world-class waves into about 4 km of coast, over bottoms ranging from sand to rock slab. The consistency of the Atlantic swell and the orientation of the coast deliver surfable waves nearly all year.

What is the best time of day for the sea in Ericeira?

The morning. The typical summer northerly picks up after lunch and tears up the conditions, so surfers and swimmers make the most of the early hours, when the sea is smoothest and the wind light.