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Weather in San Sebastián for October 2026

Your guide to San Sebastián weather in October - trends and predictions

    Temperatures

  • Until now, October 2026 in San Sebastián is slightly cooler than the historical average by 1.3 °C.

  • The forecast for the coming days of October 2026 predicts a temperature of 19.3 °C , which is warmer than usual.

  • In general, the average temperature in San Sebastián at the beginning of October is 21 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.6 °C by the end of October.

    • Rain 🌧️

  • The climate of San Sebastián in October is notably wet, with an average of 12 rainy days, and a total of 122.1 mm of precipitation.

    • More

  • Is October a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.

  • ✨ Is October a good time to visit San Sebastián? – Ask the AI Weatherman

Average dry days
19
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/12°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
77 %
Avg humidity

San Sebastián Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
22°
2
Light rain
21°
3
Light rain
19°
4
Moderate rain
21°
5
Patchy rain possible
22°
6
Light rain
21°
7
Moderate rain
22°
8
Patchy rain possible
21°
9
Light rain
21°
10
Sunny
21°
11
Overcast
22°
12
Partly cloudy
23°
13
Patchy rain possible
22°
14
Light rain shower
21°
15
Light rain
19°
16
Patchy rain possible
21°
17
Light rain
19°
18
Light rain shower
20°
19
Light rain
18°
20
Light rain
18°
21
Patchy rain possible
18°
22
Patchy rain possible
19°
23
Light rain
17°
24
Patchy rain possible
19°
25
Light rain
15°
26
Sunny
23°
27
Patchy rain possible
18°
28
Overcast
19°
29
Overcast
18°
30
Cloudy
21°
31
Patchy rain possible
17°

Temperatures trend during October in San Sebastián

See the weather trend as well as the moving average line

October weather in San Sebastián day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Light rain
Light rain
 22° /14° 3.4 mm 4.8
2 Oct. Light rain
Light rain
 21° /14° 3.6 mm 4.7
3 Oct. Light rain
Light rain
 19° /14° 4.3 mm 4
4 Oct. Moderate rain
Moderate rain
 21° /13° 12.7 mm 4
5 Oct. Patchy rain possible
Patchy rain possible
 22° /13° 1 mm 4
6 Oct. Light rain
Light rain
 21° /13° 6.2 mm 4
7 Oct. Moderate rain
Moderate rain
 22° /14° 13.3 mm 4.3
8 Oct. Patchy rain possible
Patchy rain possible
 21° /14° 1.7 mm 4
9 Oct. Light rain
Light rain
 21° /13° 3.7 mm 4.1
10 Oct. Sunny
Sunny
 21° /12° 0.2 mm 4
11 Oct. Overcast
Overcast
 22° /13° 0.7 mm 3.9
12 Oct. Partly cloudy
Partly cloudy
 23° /14° 0 mm 3.9
13 Oct. Patchy rain possible
Patchy rain possible
 22° /14° 0.5 mm 3.8
14 Oct. Light rain shower
Light rain shower
 21° /14° 1.3 mm 3.7
15 Oct. Light rain
Light rain
 19° /14° 5.1 mm 3.6
16 Oct. Patchy rain possible
Patchy rain possible
 21° /14° 2.3 mm 3.5
17 Oct. Light rain
Light rain
 19° /13° 4.7 mm 3.5
18 Oct. Light rain shower
Light rain shower
 20° /13° 0.7 mm 3.4
19 Oct. Light rain
Light rain
 18° /12° 3.6 mm 3.3
20 Oct. Light rain
Light rain
 18° /12° 5.5 mm 3.3
21 Oct. Patchy rain possible
Patchy rain possible
 18° /11° 1.8 mm 3
22 Oct. Patchy rain possible
Patchy rain possible
 19° /12° 0.9 mm 3
23 Oct. Light rain
Light rain
 17° /10° 8.7 mm 3
24 Oct. Patchy rain possible
Patchy rain possible
 19° /9° 1.6 mm 3
25 Oct. Light rain
Light rain
 15° /12° 3 mm 2.9
26 Oct. Sunny
Sunny
 23° /10° 0 mm 3.1
27 Oct. Patchy rain possible
Patchy rain possible
 18° /11° 1.2 mm 1.3
28 Oct. Overcast
Overcast
 19° /11° 0.1 mm 2.8
29 Oct. Overcast
Overcast
 18° /11° 0 mm 2.6
30 Oct. Cloudy
Cloudy
 21° /11° 0 mm 6
31 Oct. Patchy rain possible
Patchy rain possible
 17° /14° 2.4 mm 4
Next
Important Notice
Our weather forecast for San Sebastián in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Sebastián forecast closer to your planned date for the most up-to-date weather information.
Change Month
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San Sebastián weather in October vs September vs November

Compare October weather in San Sebastián with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
SeptemberOctoberNovember
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures22°/14°19°/12°15°/10°
Rainfall67 mm122 mm111 mm
Wind13.2 km/h14.3 km/h15.3 km/h
Humidity77%77%78%
Rainy days11 days12 days14 days
Dry days19 days19 days16 days

Planning a trip to San Sebastián? Discover the best time to visit

San Sebastián in October - FAQ

What are the expected maximum and minimum temperatures in San Sebastián during October?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in San Sebastián during October?
Significant rainfall exceeding 122.1 mm is expected in San Sebastián during October, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in San Sebastián during October?
The average wind speed in San Sebastián during October is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in San Sebastián

Explore the daily rainfall trends and prepare for San Sebastiáns October weather 💧
Typically, San Sebastián has 12 rainy days in October with a total of 122.1 mm of rainfall.

UV exposure in San Sebastián during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

What to pack to San Sebastián in October?

🌦️ Mild · highs around 19 °C, frequent showers

As you prepare for your trip to San Sebastián in October, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in San Sebastián, during October, is comfortable and enjoyable, regardless of the weather conditions.

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Location coordinates Where is San Sebastián?

Get accurate weather forecasts for San Sebastián, located at latitude 43.567 and longitude -5.9. Stay updated with localized weather information tailored for San Sebastián.

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