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Bilbao weather in August

Weather in Bilbao: August

Average day temperature: 78.2°F
Average night temperature: 63.1°F
Sea water temperature: 71.5°F
Number of sunny days: 15 days
Day length: 13.2 - 14.5 hours
Number of rainy days: 2 days
Precipitation totals: 1.3 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 86°F. At the same time the lowest night temperature was 39°F. Daily and nightly averages during August were 76.4°F and 63.6°F.

Sea water temperature in Bilbao in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 73.9°F. The highest and lowest sea temperatures during the month were 75.2°F and 72.1°F.

Sunny, partly cloudy and cloudy days

Mostly all days in August are sunny but cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Bilbao in August is 1.3 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 4.6 mph It makes August lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 7.9.

Best time for vacation in Bilbao

Sunniest months:
October 15 days
September 15 days
August 15 days
Warmest months:
August 78.2 °F
July 76.5 °F
September 74.9 °F
Warmest sea temp:
August 71.5 °F
July 69.9 °F
September 69.2 °F
Coldest months:
January 52.5 °F
February 54.6 °F
December 55.6 °F
Rainiest months:
November 7 days
January 7 days
December 6 days
Windiest months:
February 8.2 mph
November 8.1 mph
December 8.0 mph

Bilbao on a weather map

Bilbao
+66°F
S 2 mph
Feels like: +66°F
Precip.: 6%
Places in Spain:
Name
°F
+77°F
+79°F
+77°F
+68°F
+77°F
+72°F
+70°F
+79°F
+77°F
+75°F
+79°F
+66°F
+77°F
24 Hours Forecast
Bilbao
Local time: 20:56
August 29, saturday
2100
66°F
S
2 mph
August 30, sunday
0000
66°F
N
2 mph
0300
64°F
N
2 mph
0600
64°F
N
3 mph
0900
63°F
N
2 mph
1200
73°F
S
4 mph
1500
72°F
S
9 mph
1800
68°F
S
5 mph
Units of measurement: °C / °F