29.08
sat
sat
Day
77°F
NE 2 mph
Precip.
1%
1%
Night
66°F
N 2 mph
Precip.
9%
9%
30.08
sun
sun
Day
73°F
S 4 mph
Precip.
7%
7%
Night
63°F
S 1 mph
Precip.
26%
26%
31.08
mon
mon
Day
68°F
SW 3 mph
Precip.
16%
16%
Night
61°F
E 1 mph
Precip.
54%
54%
01.09
tue
tue
Day
64°F
S 5 mph
Precip.
43%
43%
Night
63°F
E 2 mph
Precip.
25%
25%
02.09
wed
wed
Day
68°F
SW 3 mph
Precip.
5%
5%
Night
61°F
N 2 mph
Precip.
11%
11%
03.09
thu
thu
Day
70°F
SW 3 mph
Precip.
7%
7%
Night
66°F
N 2 mph
Precip.
7%
7%
04.09
fri
fri
Day
81°F
W 3 mph
Precip.
1%
1%
Night
72°F
NE 2 mph
Precip.
3%
3%
05.09
sat
sat
Day
84°F
NE 5 mph
Precip.
0%
0%
Night
70°F
NW 1 mph
Precip.
13%
13%
06.09
sun
sun
Day
70°F
NE 5 mph
Precip.
15%
15%
Night
63°F
SE 2 mph
Precip.
49%
49%
07.09
mon
mon
Day
66°F
E 2 mph
Precip.
13%
13%
Night
59°F
S 2 mph
Precip.
22%
22%
08.09
tue
tue
Day
63°F
S 4 mph
Precip.
11%
11%
Night
61°F
SE 3 mph
Precip.
38%
38%
09.09
wed
wed
Day
61°F
S 4 mph
Precip.
28%
28%
Night
59°F
N 2 mph
Precip.
24%
24%
10.09
thu
thu
Day
68°F
W 2 mph
Precip.
4%
4%
Night
64°F
N 3 mph
Precip.
10%
10%
11.09
fri
fri
Day
77°F
NW 4 mph
Precip.
4%
4%
Night
68°F
SE 3 mph
Precip.
14%
14%
Sea water temperature 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.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.4°F. The highest and lowest sea temperatures during the month were 71.1°F and 67.3°F.
Air temperature in Bilbao, °F
Precipitation total in Bilbao, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Bilbao
Bilbao on a weather map
Places in Spain:
Name
°F
24 Hours Forecast
Bilbao
Local time: 20:58
August 29, saturday
2100
66°F
S
2 mph
2 mph
August 30, sunday
0000
66°F
N
2 mph
2 mph
0300
64°F
N
2 mph
2 mph
0600
64°F
N
3 mph
3 mph
0900
63°F
N
2 mph
2 mph
1200
73°F
S
4 mph
4 mph
1500
72°F
S
9 mph
9 mph
1800
68°F
S
5 mph
5 mph
