09.08
tue
tue
DAY
76°F
SE 4 mph
precip
4%
4%
NIGHT
64°F
SE 7 mph
precip
89%
89%
09.09
wed
wed
DAY
62°F
S 6 mph
precip
48%
48%
NIGHT
56°F
S 3 mph
precip
28%
28%
09.10
thu
thu
DAY
68°F
SE 5 mph
precip
14%
14%
NIGHT
52°F
N 4 mph
precip
17%
17%
09.11
fri
fri
DAY
72°F
S 4 mph
precip
2%
2%
NIGHT
54°F
N 4 mph
precip
20%
20%
09.12
sat
sat
DAY
70°F
S 5 mph
precip
3%
3%
NIGHT
58°F
N 3 mph
precip
42%
42%
09.13
sun
sun
DAY
76°F
S 4 mph
precip
3%
3%
NIGHT
62°F
N 3 mph
precip
16%
16%
09.14
mon
mon
DAY
80°F
S 4 mph
precip
1%
1%
NIGHT
68°F
N 4 mph
precip
5%
5%
09.15
tue
tue
DAY
88°F
E 2 mph
precip
1%
1%
NIGHT
64°F
N 2 mph
precip
5%
5%
09.16
wed
wed
DAY
72°F
SE 5 mph
precip
16%
16%
NIGHT
66°F
SE 6 mph
precip
53%
53%
09.17
thu
thu
DAY
68°F
S 5 mph
precip
23%
23%
NIGHT
64°F
E 0 mph
precip
25%
25%
09.18
fri
fri
DAY
74°F
NW 5 mph
precip
8%
8%
NIGHT
66°F
SE 2 mph
precip
23%
23%
09.19
sat
sat
DAY
82°F
SW 3 mph
precip
2%
2%
NIGHT
74°F
N 4 mph
precip
4%
4%
09.20
sun
sun
DAY
88°F
N 6 mph
precip
5%
5%
NIGHT
72°F
N 2 mph
precip
21%
21%
09.21
mon
mon
DAY
82°F
N 2 mph
precip
12%
12%
NIGHT
72°F
N 3 mph
precip
16%
16%
Sea water
temperature
temperature
| San Sebastian |
Weather in
September
September
| San Sebastian |
7 day weather
forecast
forecast
| San Sebastian |
10 day weather
forecast
forecast
| San Sebastian |
14 day weather
forecast
forecast
| San Sebastian |
Monthly weather
averages
averages
| San Sebastian |
Current Weather
Conditions
Conditions
| San Sebastian |
When is the Best
Time to Visit?
Time to Visit?
| San Sebastian |
San Sebastian Sea Water Temperature in September, °F
The average sea surface temperature in September 2025 for San Sebastian was 72.5°F. The maximum and minimum values were 70.2°F and 74.4°F respectively.
San Sebastian on the Weather Map
Spain Resorts:
NAME
F°
| Alicante |  |
+82 |
| Barcelona | |
+86 |
| Costa Brava | |
+80 |
| Eivissa | |
+82 |
| Gran Canaria |  |
+86 |
| Lloret de Mar | |
+78 |
| Madrid | |
+76 |
| Malaga |  |
+88 |
| Marbella | |
+88 |
| Palma de Majorka | |
+80 |
| Palma de Mallorca | |
+78 |
| Salou | |
+84 |
| Tenerife | |
+84 |
| Torrevieja | |
+84 |
| Valencia | |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Sebastian
Local time: 22:49
09 sep, wednesday
| 0000 | |
64°F | SE 7 mph |
| 0300 | |
62°F | SE 5 mph |
| 0600 | |
58°F | S 6 mph |
| 0900 | |
60°F | SE 4 mph |
| 1200 | |
62°F | S 6 mph |
| 1500 | |
64°F | S 7 mph |
| 1800 | |
66°F | S 8 mph |
| 2100 | |
56°F | S 3 mph |