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Vila Nova de Milfontes weather forecast and sea temperature

Right now in Vila Nova de Milfontes: clear skies, 20°C, feels like 21°C.

Expect a mostly clear week in Vila Nova de Milfontes, warming from around 16°C to near 35°C by Thursday.

Daytime highs this week are about 2°C above the August average of 25°C.

Sunrise: 07:01 · Sunset: 20:10 · Day length: 13h 9m

Vila Nova de Milfontes sea temperature today

Sea water: 20.5°C, cooling to around 19°C over the coming days

Wave height: 2.4m (min 1.1m on 2026-09-03, max 2.4m on 2026-08-28)

Vila Nova de Milfontes water temperature for the next 7 days · Sea temperature along the whole coast

Next 24 hours

20:00 20°
21:00 20°
22:00 20°
23:00 20°
00:00 19°
01:00 19°
02:00 19°
03:00 18°
04:00 18°
05:00 17°
06:00 17°
07:00 16°
08:00 17°
09:00 19°
10:00 21°
11:00 23°
12:00 24°
13:00 25°
14:00 25°
15:00 24°
16:00 24°
17:00 23°
18:00 23°
19:00 22°
  1. Fri 28/08 clear skies 24°16°
  2. Sat 29/08 sunny and clear 25°16°
  3. Sun 30/08 bright and clear 26°19°
  4. Mon 31/08 clear skies 28°17°
  5. Tue 01/09 sunny and clear 24°16°
  6. Wed 02/09 bright and clear 28°16°
  7. Thu 03/09 clear skies 35°16°

Vila Nova de Milfontes stands where the Mira river meets the Atlantic, inside the Southwest Alentejo and Vicentina Coast Natural Park. It is one of the classic Portuguese summer destinations, packed with domestic holidaymakers in August and quiet the rest of the year. The river beaches, Franquia above all, are calm and sheltered, while the ocean beaches out by the Farol are open to the full swell.

Summer afternoons usually reach 25–28 °C, with a northerly wind that builds after lunch and drops again in the evening. Winter is mild at 15–16 °C, with rain in Atlantic spells. This is west-facing coast, so upwelling keeps the ocean cool through the summer at around 16–18 °C, while the shallow river water behind the sandbar can feel several degrees warmer.

Climate through the year

Month Min (°C) Max (°C) Rainy days
January 8.8 15.6 8.2
February 9.5 16.7 7.4
March 10.3 17.2 11.6
April 12.1 18.9 11.1
May 14.1 21.3 4.8
June 16.2 23.0 4.2
July 17.2 24.7 1.0
August 17.5 25.3 0.2
September 16.7 24.4 3.1
October 15.2 22.7 8.3
November 12.1 18.5 10.8
December 10.0 16.7 10.1

Going by Vila Nova de Milfontes's own averages, July is the most balanced month: highs near 25 °C and about 1 rainy days. The hottest month is August at 25 °C, and the wettest is March with 12 rainy days.

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

When is the sea warmest in Vila Nova de Milfontes?

In September, once the summer northerly eases and the upwelling relaxes, when the ocean reaches about 17–19 °C. For a warmer swim at any point in the season, use the river beaches: the Mira estuary is shallow and sheltered and always ahead of the open sea.

River beach or ocean beach?

The river for calm water, safe paddling and warmth, the ocean for waves, space and sunsets. Franquia, on the estuary, is the family choice and is protected from the afternoon wind. The Atlantic beaches by the river mouth have currents and shorebreak, so swim near the lifeguards.

When should you visit Milfontes?

June and September are the sweet spot: warm, uncrowded and with the sea at its best in September. August is when the whole country arrives, so book months ahead and expect the beaches and restaurants to be full. Outside summer it is a quiet base for walking the cliffs inside the natural park.