Measurements:
°C
°F
Estoril
74°F
SE 12 mph
Feels like: 80°F
Precip: 5%
World Resorts Portugal Estoril Weather

Estoril Sea Water Temperature

Current Sea Water Temperature:
+65.8°F
Maximum Sea Water Temperature in July: 70.4°F
Minimum Sea Water Temperature in July: 59.2°F
Average water temperature in July: 65.1°F

Sea Water Temperature for the Last 10 Days:

July 30 65.8°F July 25 69.8°F
July 29 66.4°F July 24 69.8°F
July 28 67.8°F July 23 70.0°F
July 27 67.8°F July 22 70.2°F
July 26 68.4°F July 21 68.8°F

When is the Warmest Sea for Estoril?

According to our data for the last three years for Estoril the highest average sea water temperature was in September, October and August.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Estoril was 63.9°F. The maximum and minimum values were 61.4°F and 67.6°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Estoril was 64.4°F. The maximum and minimum values were 62.0°F and 67.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Estoril was 66.4°F. The maximum and minimum values were 64.4°F and 68.8°F respectively.

Best Time to Visit Estoril
The most sunny months:
August 27 days
July 26 days
September 24 days
The most warm months:
August 79.0 °F
July 77.7 °F
September 77.4 °F
Warmest sea temperature:
September 66.2 °F
October 65.8 °F
August 65.3 °F
The most cold months:
January 59.3 °F
February 59.9 °F
December 61.6 °F
The most rainy months:
November 5 days
March 4 days
December 4 days
The most windy months:
July 13 mph
August 13 mph
June 12 mph

Estoril on the Weather Map

Portugal Resorts:
NAME
Albufeira +82
Algarve +76
Cascais +74
Ericeira +76
Faro +76
Funchal +76
Lagos +82
Lisbon +80
Madeira +76
Ponta Delgada +78
Portimao +86
Porto +72
Quarteira +82
Sao Miguel +78
Setubal +84
24 Hours Weather Forecast
Estoril
Local time: 11:39
30 jul, thursday
1200 74°F
SE
12 mph
1500 76°F
SE
16 mph
1800 74°F
SE
18 mph
2100 70°F
S
17 mph
31 jul, friday
0000 68°F
S
14 mph
0300 68°F
S
14 mph
0600 68°F
S
15 mph
0900 70°F
S
14 mph