09.29
tue
tue
DAY
80°F
N 12 mph
precip
11%
11%
NIGHT
78°F
N 11 mph
precip
8%
8%
09.30
wed
wed
DAY
76°F
S 2 mph
precip
20%
20%
NIGHT
62°F
S 5 mph
precip
66%
66%
10.01
thu
thu
DAY
64°F
S 3 mph
precip
32%
32%
NIGHT
60°F
NE 2 mph
precip
38%
38%
10.02
fri
fri
DAY
68°F
W 1 mph
precip
76%
76%
NIGHT
64°F
E 2 mph
precip
43%
43%
10.03
sat
sat
DAY
68°F
E 2 mph
precip
20%
20%
NIGHT
62°F
NE 3 mph
precip
36%
36%
10.04
sun
sun
DAY
68°F
SE 5 mph
precip
39%
39%
NIGHT
58°F
NE 4 mph
precip
25%
25%
10.05
mon
mon
DAY
56°F
E 8 mph
precip
75%
75%
NIGHT
54°F
SE 4 mph
precip
67%
67%
10.06
tue
tue
DAY
56°F
S 3 mph
precip
47%
47%
NIGHT
56°F
NE 4 mph
precip
52%
52%
10.07
wed
wed
DAY
62°F
S 6 mph
precip
53%
53%
NIGHT
56°F
SE 4 mph
precip
65%
65%
10.08
thu
thu
DAY
60°F
NE 4 mph
precip
54%
54%
NIGHT
58°F
SE 2 mph
precip
35%
35%
10.09
fri
fri
DAY
62°F
SE 4 mph
precip
39%
39%
NIGHT
50°F
N 4 mph
precip
20%
20%
10.10
sat
sat
DAY
64°F
SE 3 mph
precip
5%
5%
NIGHT
50°F
N 4 mph
precip
17%
17%
10.11
sun
sun
DAY
68°F
NE 2 mph
precip
4%
4%
NIGHT
54°F
NE 3 mph
precip
20%
20%
10.12
mon
mon
DAY
64°F
S 3 mph
precip
14%
14%
NIGHT
60°F
SW 2 mph
precip
29%
29%
Sea water
temperature
temperature
| San Sebastian |
Weather in
October
October
| 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 2026 for San Sebastian was 74.9°F. The maximum and minimum values were 73.4°F and 76.4°F respectively.
San Sebastian on the Weather Map
Spain Resorts:
NAME
F°
| Alicante |  |
+78 |
| Barcelona |  |
+74 |
| Costa Brava | |
+74 |
| Eivissa | |
+76 |
| Gran Canaria |  |
+72 |
| Lloret de Mar | |
+72 |
| Madrid | |
+60 |
| Malaga | |
+70 |
| Marbella | |
+70 |
| Palma de Majorka | |
+76 |
| Palma de Mallorca | |
+74 |
| Salou | |
+78 |
| Tenerife | |
+66 |
| Torrevieja | |
+78 |
| Valencia | |
+78 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Sebastian
Local time: 01:48
29 sep, tuesday
| 0300 | |
68°F | NW 6 mph |
| 0600 |  |
66°F | N 9 mph |
| 0900 | |
68°F | N 9 mph |
| 1200 | |
80°F | N 12 mph |
| 1500 | |
86°F | N 12 mph |
| 1800 | |
86°F | NW 9 mph |
| 2100 | |
80°F | N 12 mph |
30 sep, wednesday
| 0000 | |
78°F | N 11 mph |