Measurements:
°C
°F
Barcelona
74°F
NW 4 mph
Feels like: 80°F
Precip: 34%
World Resorts Spain Barcelona Weather

Barcelona Sea Water Temperature

Current Sea Water Temperature:
+82.0°F
Maximum Sea Water Temperature in September: 85.4°F
Minimum Sea Water Temperature in September: 74.4°F
Average water temperature in September: 79.7°F

Sea Water Temperature for the Last 10 Days:

September 28 82.0°F September 23 82.0°F
September 27 82.2°F September 22 82.2°F
September 26 82.2°F September 21 82.6°F
September 25 82.2°F September 20 83.0°F
September 24 81.8°F September 19 82.8°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 86.0°F. The maximum and minimum values were 82.2°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: 2026 2025 2024

The average sea surface temperature in September 2026 for Barcelona was 82.9°F. The maximum and minimum values were 80.2°F and 85.4°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 86.6 °F
July 85.9 °F
September 80.6 °F
Warmest sea temperature:
August 82.3 °F
July 79.8 °F
September 79.7 °F
The most cold months:
January 55.6 °F
February 57.0 °F
December 58.1 °F
The most rainy months:
October 3 days
November 3 days
September 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: 01:54
29 sep, tuesday
0300 74°F
NW
4 mph
0600 74°F
W
2 mph
0900 74°F
W
4 mph
1200 74°F
NW
3 mph
1500 78°F
NW
6 mph
1800 78°F
W
6 mph
2100 76°F
SW
4 mph
30 sep, wednesday
0000 76°F
S
2 mph