Measurements:
°C
°F
Lisbon
58°F
E 11 mph
Feels like: 56°F
Precip: 100%
World Resorts Portugal Lisbon Weather

Lisbon Sea Water Temperature

Current Sea Water Temperature:
+58.2°F
Maximum Sea Water Temperature in January: 62.4°F
Minimum Sea Water Temperature in January: 56.6°F
Average water temperature in January: 59.1°F

Sea Water Temperature for the Last 10 Days:

January 09 58.2°F January 04 58.4°F
January 08 58.2°F January 03 57.8°F
January 07 58.4°F January 02 57.2°F
January 06 58.6°F January 01 56.8°F
January 05 58.6°F December 31 56.2°F

When is the Warmest Sea for Lisbon?

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

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Lisbon was 72.4°F. The maximum and minimum values were 70.2°F and 75.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Lisbon was 71.3°F. The maximum and minimum values were 67.2°F and 74.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Lisbon was 67.7°F. The maximum and minimum values were 64.4°F and 71.4°F respectively.

Best Time to Visit Lisbon
The most sunny months:
August 28 days
July 26 days
September 23 days
The most warm months:
August 85.4 °F
July 84.2 °F
September 81.7 °F
Warmest sea temperature:
August 69.0 °F
July 68.6 °F
September 68.5 °F
The most cold months:
January 59.5 °F
February 60.9 °F
December 61.6 °F
The most rainy months:
March 4 days
November 4 days
April 4 days
The most windy months:
July 11 mph
August 10 mph
June 10 mph

Lisbon on the Weather Map

Portugal Resorts:
NAME
Albufeira +52
Algarve +54
Cascais +58
Faro +54
Funchal +54
Lagos +56
Lisbon +58
Madeira +54
Ponta Delgada +62
Portimao +54
Porto +52
Porto Santo Island +62
Quarteira +52
Sao Miguel +62
Terceira Island +60
24 Hours Weather Forecast
Lisbon
Local time: 08:01
09 jan, friday
0900 58°F
E
11 mph
1200 58°F
SE
9 mph
1500 60°F
SE
12 mph
1800 56°F
SE
10 mph
2100 54°F
S
6 mph
10 jan, saturday
0000 54°F
S
6 mph
0300 52°F
S
6 mph
0600 50°F
S
6 mph

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