San Sebastian weather live forecast

Today's maximum temperature in San Sebastian is expected to be 23°C. Select a day from the live weather forecast for San Sebastian, Spain for more weather parameters.

Saturday
12th Sep
23

15

11

6
Sunday
13th Sep
27

15

12

6
Monday
14th Sep
30

17

12

6
Tuesday
15th Sep
27

18

7

6
Wednesday
16th Sep
22

18

6

3

5-day weather forecast updated at 04:01 on Thursday 10th September 2026 GMT

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The 5-day weather forecast for Spain (San Sebastian) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

San Sebastian weather forecast by day

Below are the detailed weather forecasts for San Sebastian for the next 5 days.

San Sebastian weather for Saturday 12th September 2026

Expect scattered clouds in San Sebastian, Spain with a maximum temperature of 23°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

23
°C maximum temperature
15
°C minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from N

San Sebastian weather for Sunday 13th September 2026

Expect scattered clouds in San Sebastian, Spain with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north.

27
°C maximum temperature
15
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
9
kph wind from N

San Sebastian weather for Monday 14th September 2026

Expect clear skies in San Sebastian, Spain with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north.

30
°C maximum temperature
17
°C minimum temperature
clear skies
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from N

San Sebastian weather for Tuesday 15th September 2026

Expect sunshine and showers in San Sebastian, Spain with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 14 kph from the north-west.

27
°C maximum temperature
18
°C minimum temperature
sunshine and showers
7
hours of sunshine
6
UV index (High)
25
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
14
kph wind from NW

San Sebastian weather for Wednesday 16th September 2026

Expect sunshine and showers in San Sebastian, Spain with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 15 kph from the north.