October could be a good time to visit San Sebastian, as the weather is generally fine. The average high temperature is around +20°C, and there are typically 6 sunny days in October. However, expect about 17 rainy days, and total monthly rainfall of approximately 144 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+20°C
Avg. max. temperature
+2°C
Min.
+31°C
Max.
144 mm
Total precipitation
77%
Avg. humidity
2 m/s
Avg. wind
6 ☀️
Sunny Days
7 ⛅️
Cloudy
17 🌦
Rainy
Our opinion: San Sebastian has OK weather in October.
Avionero – A better way to search for flights:
Cheapest prices on the market!
Check all your dates and date combinations in a single search!
Want inspiration, set your dates and find the cheapest destinations!
Saves your searches in the browser so you can easily return to them!
Average temperature in San Sebastian in October
Here are the expected maximum, average and minimum temperatures in San Sebastian for October based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in October is +24°C with a maximum of +31°C and a minimum of +10°C.
The average maximum temperature goes down 43% by the end of the month, compared with the beginning of the month, from +30°C to +21°C.
Is San Sebastian warm or cold in October?
San Sebastian is typically mild in October.
Maximum temperatures go down compared to the previous month from +23°C to +20°C. The minimum temperature also goes down from +16°C to +14°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in San Sebastian:
Water temperature in San Sebastian in October
Water in San Sebastian in October is Fresh. It varies from +16°C to +21°C, with an average of +19°C.This is almost similar to the air temperature, which averages +20°C.
In October, water temperatures are average relative to the rest of the year:
The warmest water temperatures in San Sebastian are reached in August, when the average sea temperature rises to +21°C. The coldest water temperatures are in February, with an average of +12°C.
Can you swim in San Sebastian in October?
Water temperature (+19°C) in San Sebastian in October might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in San Sebastian in October
San Sebastian weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+23°C
+20°C
+15°C
Min. temperature
+7°C
+2°C
-2°C
Max. temperature
+37°C
+31°C
+29°C
Rainfall
109 mm
144 mm
191 mm
Wind
2 m/s
2 m/s
3 m/s
Avg. water temperature
+21°C
+19°C
+16°C
Humidity
78%
77%
78%
Air pressure
1017 HPa
1016 HPa
1017 HPa
Sunny days
6
6
5
Cloudy days
7
7
6
Rainy days
15
17
18
Snowy days
0
0
0
October weather is still as ok as in September.It’s getting colder in October. From +23°C in the day, the average maximum temperature lowers to +20°C.Prepare for more rain. Average rainfall goes from 109 mm to 144 mm.It feels drier, as humidity decreases from 78% to 77%.The average wind speed doesn’t change much during October, staying around 2 m/s.The amount of sunny days stay about the same, averaging 6 sunny days during the month.
November brings much the same weather, it remains ok.
Wind speed in San Sebastian in October based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Sebastian is gradually increasing during October, going from 2 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in San Sebastian based on historical data.
Last Year
Historical Data
Total precipitation in October is about 158 mm, with a 55% chance of rain on a typical day. The maximum amount of rainfall per day is around 45 mm, which is moderate rain.October is a pretty wet month with over 17 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how October is compared with other months in the amount of precipitation, total mm:
San Sebastian wettest month is November, where a typical day has a 60% chance of precipitation and 191 mm of rainfall per day. July, on the other hand, is the driest month with a mere 52% chance of precipitation and 93 mm of rainfall per day.
How was the weather last October in San Sebastian?
This is the weather in San Sebastian in October 2024:
1 October
☀️
+30°C
2 October
☀️
+31°C
3 October
🌧️
+22°C
4 October
🌧️
+22°C
5 October
☀️
+24°C
6 October
☀️
+25°C
7 October
☀️
+27°C
8 October
☀️
+27°C
9 October
☀️
+24°C
10 October
☀️
+25°C
11 October
☀️
+30°C
12 October
☀️
+30°C
13 October
☀️
+30°C
14 October
🌧️
+21°C
15 October
☀️
+20°C
16 October
☀️
+25°C
17 October
☀️
+28°C
18 October
☀️
+26°C
19 October
🌧️
+23°C
20 October
☁️
+19°C
21 October
☀️
+20°C
22 October
☀️
+21°C
23 October
🌧️
+21°C
24 October
☀️
+19°C
25 October
🌧️
+21°C
26 October
🌧️
+22°C
27 October
☀️
+19°C
28 October
☀️
+23°C
29 October
🌧️
+22°C
30 October
🌧️
+19°C
31 October
☀️
+21°C
In October 2024 San Sebastian had 21 sunny days, 1 cloudy days, and 9 rainy days. The average maximum temperature was +24°C, with an absolute maximum of +31°C and a minimum of +19°C. The average humidity was 77%, with a maximum of 100% and a minimum of 51%. The average wind speed was 3 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in October?
Climate Change over Years
This is how San Sebastian climate have been changing during last 43 years period.
The climate in San Sebastian in October has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+16°C) and the highest in 2022 (+20°C). The driest year was 1989 with only 973 mm of rainfall, and the wettest year was 2019 with 4351 mm.
FAQ
Frequently asked questions about the weather in San Sebastian in October:
Is October a good time to visit San Sebastian?
It’s always a good time to visit San Sebastian, but the weather is changeable in October, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in San Sebastian in October?
October has mild temperatures in San Sebastian. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in San Sebastian in October?
In general, you can swim in San Sebastian in October, if you want to, at an average water temperature of +19°C. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is San Sebastian rainy in October?
San Sebastian is often rainy in October. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in San Sebastian in October?
Usually, it’s not very sunny in San Sebastian in October, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in San Sebastian, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
