S
M
T
W
T
F
S
27
74°
51°
28
72°
54°
29
71°
56°
30
71°
54°
1
72°
53°
2
71°
50°
3
70°
49°
4
71°
50°
5
70°
53°
6
72°
56°
7
74°
52°
8
72°
51°
9
69°
54°
10
76°
54°
11
69°
51°
12
68°
54°
13
Hist. Avg.
68°
52°
14
Hist. Avg.
67°
52°
15
Hist. Avg.
67°
52°
16
Hist. Avg.
67°
52°
17
Hist. Avg.
66°
52°
18
Hist. Avg.
66°
51°
19
Hist. Avg.
66°
51°
20
Hist. Avg.
66°
51°
21
Hist. Avg.
65°
51°
22
Hist. Avg.
65°
51°
23
Hist. Avg.
65°
50°
24
Hist. Avg.
65°
50°
25
Hist. Avg.
64°
50°
26
Hist. Avg.
64°
50°
27
Hist. Avg.
64°
49°
28
Hist. Avg.
63°
49°
29
Hist. Avg.
63°
49°
30
Hist. Avg.
63°
49°
31
Hist. Avg.
63°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Donostia-San Sebastian
Donostia-San Sebastian's October 2026 forecast shows daily high temperatures ranging from 68° to 76°, with overnight lows between 49° and 56°. The average high for October is 71° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Donostia-San Sebastian. See also: November | December | January.