15.09
tue
tue
Day
73°F
E 14 mph
Precip.
5%
5%
Night
66°F
SE 9 mph
Precip.
33%
33%
16.09
wed
wed
Day
66°F
S 9 mph
Precip.
29%
29%
Night
61°F
S 5 mph
Precip.
21%
21%
17.09
thu
thu
Day
66°F
E 5 mph
Precip.
20%
20%
Night
63°F
E 5 mph
Precip.
22%
22%
18.09
fri
fri
Day
64°F
S 7 mph
Precip.
34%
34%
Night
59°F
SW 2 mph
Precip.
9%
9%
19.09
sat
sat
Day
66°F
N 5 mph
Precip.
4%
4%
Night
61°F
E 2 mph
Precip.
11%
11%
20.09
sun
sun
Day
66°F
NW 3 mph
Precip.
4%
4%
Night
63°F
NE 7 mph
Precip.
10%
10%
21.09
mon
mon
Day
70°F
SE 3 mph
Precip.
5%
5%
Night
66°F
NE 7 mph
Precip.
23%
23%
22.09
tue
tue
Day
72°F
SE 3 mph
Precip.
4%
4%
Night
66°F
NE 7 mph
Precip.
14%
14%
23.09
wed
wed
Day
75°F
N 4 mph
Precip.
2%
2%
Night
68°F
NE 3 mph
Precip.
8%
8%
24.09
thu
thu
Day
79°F
N 3 mph
Precip.
1%
1%
Night
70°F
NE 3 mph
Precip.
5%
5%
25.09
fri
fri
Day
82°F
NE 4 mph
Precip.
1%
1%
Night
73°F
NW 5 mph
Precip.
2%
2%
26.09
sat
sat
Day
79°F
NE 5 mph
Precip.
2%
2%
Night
70°F
NE 6 mph
Precip.
16%
16%
27.09
sun
sun
Day
77°F
N 4 mph
Precip.
12%
12%
Night
73°F
NW 5 mph
Precip.
14%
14%
28.09
mon
mon
Day
75°F
N 3 mph
Precip.
13%
13%
Night
75°F
NW 6 mph
Precip.
16%
16%
sea water
temperature
temperature
| Biarritz |
monthly
weather
weather
| Biarritz |
current
weather
weather
| Biarritz |
7 days
forecast
forecast
| Biarritz |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 70.7°F. The highest and lowest sea temperatures during the month were 72.9°F and 68.0°F.
Air temperature in Biarritz, °F
Precipitation total in Biarritz, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Biarritz
Biarritz on a weather map
Places in France:
Name
°F
24 Hours Forecast
Biarritz
Local time: 04:01
September 15, tuesday
0600
66°F
NE
2 mph
2 mph
0900
68°F
NE
7 mph
7 mph
1200
73°F
E
14 mph
14 mph
1500
73°F
E
16 mph
16 mph
1800
72°F
E
14 mph
14 mph
2100
68°F
E
12 mph
12 mph
September 16, wednesday
0000
66°F
SE
9 mph
9 mph
0300
66°F
S
8 mph
8 mph
