Measurements:
°C
°F
Bilbao
42°F
E 11 mph
Feels like: 34°F
Precip: 100%
World Resorts Spain Bilbao Weather

Bilbao Sea Water Temperature

Current Sea Water Temperature:
+57.4°F
Maximum Sea Water Temperature in January: 58.8°F
Minimum Sea Water Temperature in January: 54.2°F
Average water temperature in January: 56.2°F

Sea Water Temperature for the Last 10 Days:

January 09 57.4°F January 04 57.2°F
January 08 57.4°F January 03 57.4°F
January 07 57.4°F January 02 57.4°F
January 06 57.2°F January 01 57.6°F
January 05 57.0°F December 31 57.4°F

When is the Warmest Sea for Bilbao?

According to our data for the last three years for Bilbao 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 Bilbao was 74.3°F. The maximum and minimum values were 73.4°F and 75.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Bilbao was 74.0°F. The maximum and minimum values were 70.8°F and 76.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Bilbao was 71.6°F. The maximum and minimum values were 69.2°F and 73.4°F respectively.

Best Time to Visit Bilbao
The most sunny months:
October 15 days
September 15 days
August 15 days
The most warm months:
August 81.4 °F
July 79.2 °F
September 77.6 °F
Warmest sea temperature:
August 73.8 °F
July 71.9 °F
September 71.3 °F
The most cold months:
January 53.1 °F
February 55.0 °F
December 56.2 °F
The most rainy months:
November 7 days
January 7 days
December 6 days
The most windy months:
February 8 mph
November 7 mph
January 7 mph

Bilbao on the Weather Map

24 Hours Weather Forecast
Bilbao
Local time: 15:19
09 jan, friday
1800 42°F
E
12 mph
2100 42°F
SE
11 mph
10 jan, saturday
0000 42°F
E
13 mph
0300 42°F
E
11 mph
0600 42°F
E
9 mph
0900 42°F
E
7 mph
1200 42°F
E
6 mph
1500 42°F
NE
4 mph