Weather in Santander for September 2025
In general, the average temperature in Santander at the beginning of September is 21.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 20.7 °C by the end of September.
Expect significant rainfall in Santander during September, with an average of 19 rainy days.
Is September a good time to visit Santander? check out the best time to travel to Santander page.
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Santander in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 21° | 2 20° | 3 21° | 4 23° | 5 22° | 6 21° | 7 22° |
8 22° | 9 24° | 10 21° | 11 21° | 12 19° | 13 19° | 14 20° |
15 22° | 16 22° | 17 21° | 18 21° | 19 20° | 20 20° | 21 20° |
22 18° | 23 19° | 24 20° | 25 23° | 26 21° | 27 19° | 28 19° |
29 22° | 30 21° |
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Temperatures trend during September in Santander
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Cloudy | 21° /17° | 1.6 mm | 5 | |
2 Sept. | Moderate or heavy rain shower | 20° /17° | 9.7 mm | 5 | |
3 Sept. | Partly cloudy | 21° /17° | 3 mm | 5 | |
4 Sept. | Light rain shower | 23° /18° | 10.8 mm | 5 | |
5 Sept. | Sunny | 22° /16° | 9.8 mm | 6 | |
6 Sept. | Patchy rain possible | 21° /16° | 3.5 mm | 5 | |
7 Sept. | Thundery outbreaks possible | 22° /17° | 1 mm | 5 | |
8 Sept. | Partly cloudy | 22° /17° | 1.1 mm | 6 | |
9 Sept. | Patchy light rain with thunder | 24° /17° | 1.9 mm | 6 | |
10 Sept. | Light rain shower | 21° /17° | 5.1 mm | 5 | |
11 Sept. | Thundery outbreaks possible | 21° /17° | 2.1 mm | 5 | |
12 Sept. | Moderate or heavy rain shower | 19° /17° | 14.9 mm | 5 | |
13 Sept. | Partly cloudy | 19° /15° | 1.1 mm | 5 | |
14 Sept. | Partly cloudy | 20° /14° | 0 mm | 6 | |
15 Sept. | Thundery outbreaks possible | 22° /15° | 1.8 mm | 5 | |
16 Sept. | Patchy rain possible | 22° /15° | 0.1 mm | 6 | |
17 Sept. | Patchy light rain | 21° /16° | 0.9 mm | 5 | |
18 Sept. | Light rain shower | 21° /16° | 0.6 mm | 5 | |
19 Sept. | Patchy rain possible | 20° /15° | 1.5 mm | 5 | |
20 Sept. | Sunny | 20° /16° | 4 mm | 6 | |
21 Sept. | Moderate or heavy rain shower | 20° /16° | 11.1 mm | 5 | |
22 Sept. | Light rain shower | 18° /15° | 7.2 mm | 4 | |
23 Sept. | Patchy rain possible | 19° /14° | 0.6 mm | 4 | |
24 Sept. | Sunny | 20° /14° | 1 mm | 6 | |
25 Sept. | Sunny | 23° /15° | 0.1 mm | 6 | |
26 Sept. | Patchy rain possible | 21° /16° | 15 mm | 5 | |
27 Sept. | Overcast | 19° /16° | 3.7 mm | 5 | |
28 Sept. | Sunny | 19° /14° | 3.4 mm | 5 | |
29 Sept. | Patchy rain possible | 22° /15° | 0.1 mm | 5 | |
30 Sept. | Sunny | 21° /16° | 0 mm | 5 | |
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Santander in September - FAQ
What to pack to Santander in September?
As you prepare for your trip to Santander in September, 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 Santander, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Santander
UV exposure in Santander during September
Quick links
Get accurate weather forecasts for Santander, located at latitude 43.465 and longitude -3.804. Stay updated with localized weather information tailored for Santander.