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Weather in Santander for September 2025

Your guide to Santander weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Santander is slightly cooler than the historical average by -0.8 °C.

  • Expect cooler weather in the next days in Santander with the forecast suggesting a temperature of 19.7 °C, lower than the historical average.

  • In general, the average temperature in Santander at the beginning of September is 21.9 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 19.7 °C by the end of September.

    • Rain 🌧️

  • Santander experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 116.8 mm.

    • More

  • Is September a good time to visit Santander? check out the best time to travel to Santander page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
8
Dry days
Average rainy days
22
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/16°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Santander Weather September

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

Temperatures trend during September in Santander

See the weather trend as well as the moving average line

September weather in Santander day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 21° /16° 1.5 mm 5
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 21° /16° 6.5 mm 5
3 Sept. Partly cloudy
Partly cloudy
 22° /17° 2.3 mm 5
4 Sept. Patchy rain possible
Patchy rain possible
 22° /18° 7.8 mm 5
5 Sept. Sunny
Sunny
 22° /15° 6.5 mm 6
6 Sept. Patchy rain possible
Patchy rain possible
 23° /16° 2.3 mm 5
7 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 22° /17° 1 mm 5
8 Sept. Partly cloudy
Partly cloudy
 20° /16° 3.7 mm 5
9 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 22° /16° 1.6 mm 5
10 Sept. Light rain shower
Light rain shower
 21° /16° 4.4 mm 4
11 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 21° /16° 2.9 mm 5
12 Sept. Light rain shower
Light rain shower
 19° /17° 11.5 mm 4
13 Sept. Partly cloudy
Partly cloudy
 19° /15° 0.7 mm 5
14 Sept. Partly cloudy
Partly cloudy
 21° /15° 0 mm 5
15 Sept. Patchy rain possible
Patchy rain possible
 20° /18° 2.6 mm 0.4
16 Sept. Patchy rain possible
Patchy rain possible
 21° /17° 0.2 mm 1.3
17 Sept. Sunny
Sunny
 23° /16° 0 mm 1.3
18 Sept. Sunny
Sunny
 24° /17° 0 mm 1.4
19 Sept. Patchy rain possible
Patchy rain possible
 23° /18° 0.1 mm 1.2
20 Sept. Moderate rain
Moderate rain
 20° /16° 6.2 mm 4
21 Sept. Patchy rain possible
Patchy rain possible
 18° /16° 1.9 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 15° /15° 1.3 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 0.4 mm 4
24 Sept. Partly cloudy
Partly cloudy
 18° /13° 0.1 mm 5
25 Sept. Cloudy
Cloudy
 18° /14° 0 mm 4
26 Sept. Sunny
Sunny
 19° /14° 0 mm 5
27 Sept. Partly cloudy
Partly cloudy
 19° /15° 0 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 21° /16° 1.7 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 22° /15° 0.1 mm 5
30 Sept. Sunny
Sunny
 21° /16° 0 mm 5
Next
Important Notice
Our weather forecast for Santander in September 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 Santander forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
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Santander weather in September vs August vs October

Compare September weather in Santander with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures22°/18°21°/16°19°/15°
Rainfall74 mm117 mm130 mm
Wind19.6 km/h20.4 km/h24.3 km/h
Humidity77%76%73%
Rainy days18 days22 days21 days
Dry days13 days8 days10 days

Planning a trip to Santander? Discover the best time to visit

Santander in September - FAQ

What are the expected maximum and minimum temperatures in Santander during September?
During September, expect a variety of temperatures with highs around 21° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Santander during September?
Significant rainfall exceeding 116.8 mm is expected in Santander during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Santander during September?
The average wind speed in Santander during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

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

Explore the daily rainfall trends and prepare for Santanders September weather 💧

UV exposure in Santander during September

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

Quick links

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Location coordinates Where is Santander?

Get accurate weather forecasts for Santander, located at latitude 43.465 and longitude -3.804. Stay updated with localized weather information tailored for Santander.

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