Measurements:
°C
°F
Barcelona
94°F
NW 9 mph
Feels like: 100°F
Precip: 2%
World Resorts Spain Barcelona Weather

Barcelona Sea Water Temperature

Current Sea Water Temperature:
+87.0°F
Maximum Sea Water Temperature in August: 88.2°F
Minimum Sea Water Temperature in August: 78.0°F
Average water temperature in August: 82.2°F

Sea Water Temperature for the Last 10 Days:

August 19 87.0°F August 14 88.0°F
August 18 87.8°F August 13 88.2°F
August 17 87.8°F August 12 88.0°F
August 16 88.2°F August 11 87.8°F
August 15 88.2°F August 10 87.2°F

When is the Warmest Sea for Barcelona?

According to our data for the last three years for Barcelona 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: 2026 2025 2024

The average sea surface temperature in August 2026 for Barcelona was 86.7°F. The maximum and minimum values were 83.0°F and 88.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Barcelona was 83.0°F. The maximum and minimum values were 80.2°F and 85.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Barcelona was 81.0°F. The maximum and minimum values were 78.4°F and 83.8°F respectively.

Best Time to Visit Barcelona
The most sunny months:
July 26 days
August 24 days
June 24 days
The most warm months:
August 86.5 °F
July 85.9 °F
September 80.3 °F
Warmest sea temperature:
August 82.1 °F
July 79.8 °F
September 79.5 °F
The most cold months:
January 55.6 °F
February 57.0 °F
December 58.1 °F
The most rainy months:
September 4 days
October 3 days
November 3 days
The most windy months:
March 8 mph
November 7 mph
April 7 mph

Barcelona on the Weather Map

24 Hours Weather Forecast
Barcelona
Local time: 14:37
19 aug, wednesday
1500 94°F
NW
9 mph
1800 92°F
NW
7 mph
2100 90°F
N
8 mph
20 aug, thursday
0000 90°F
NW
2 mph
0300 86°F
E
1 mph
0600 84°F
NW
2 mph
0900 88°F
S
3 mph
1200 86°F
NE
10 mph