Weather in Bilbao: May
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Average day temperature: | 66.2°F |
| Average night temperature: | 53.3°F | |
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Sea water temperature: | 59.9°F |
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Number of sunny days: | 11 days |
| Day length: | 14.1 - 15.2 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.2 in. | |
| more information | ||
14 days
forecast
forecast
| Bilbao |
sea water
temperature
temperature
| Bilbao |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 92°F. At the same time the lowest night temperature was 46°F. Daily and nightly averages during May were 69.0°F and 55.2°F.
Sea water temperature in Bilbao in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 62.0°F. The highest and lowest sea temperatures during the month were 66.6°F and 59.9°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Bilbao in May is 2.2 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 5.0 mph
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 May is: 7.2.
Best time for vacation in Bilbao
Bilbao on a weather map
Places in Spain:
Name
°F
24 Hours Forecast
Bilbao
Local time: 05:00
June 15, monday
0600
63°F
N
2 mph
2 mph
0900
68°F
E
1 mph
1 mph
1200
77°F
S
6 mph
6 mph
1500
75°F
S
8 mph
8 mph
1800
73°F
S
7 mph
7 mph
2100
66°F
S
4 mph
4 mph
June 16, tuesday
0000
59°F
NW
1 mph
1 mph
0300
59°F
S
1 mph
1 mph
