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Cantabria (Santander)
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Weather in Cantabria for September 2025

Your guide to Cantabria weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Yellow High Temperature Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Cantabria is slightly cooler than the historical average by -0.6 °C.

  • Expect cooler weather in the next days in Cantabria with the forecast suggesting a temperature of 19.2 °C, lower than the historical average.

  • In general, the average temperature in Cantabria at the beginning of September is 21.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °C by the end of September.

    • Rain 🌧️

  • Cantabria 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 Cantabria? check out the best time to travel to Cantabria 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

Cantabria 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
Thundery outbreaks possible
21°
16
Weather Alert Patchy rain possible
21°
17
Weather Alert Sunny
22°
18
Weather Alert Sunny
24°
19
Patchy rain possible
24°
20
Moderate rain
19°
21
Patchy rain possible
18°
22
Patchy rain possible
16°
23
Patchy rain possible
16°
24
Partly cloudy
18°
25
Overcast
17°
26
Sunny
18°
27
Overcast
18°
28
Sunny
19°
29
Patchy rain possible
19°
30
Sunny
21°

What’s the Weather Like in Cantabria This September?

Discover the average temperatures and weather trends across Cantabria’s cities this September.
Patchy rain possibleSantander21 °C / 16 °CPatchy rain possibleSan Sebastián21 °C / 14 °CMore Locations

Temperatures trend during September in Cantabria

See the weather trend as well as the moving average line

September weather in Cantabria 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. Thundery outbreaks possible
Thundery outbreaks possible
 21° /16° 2.6 mm 5
16 Sept. Patchy rain possible
Patchy rain possible
 21° /17° 0.2 mm 1.3
17 Sept. Sunny
Sunny
 22° /16° 0 mm 1.4
18 Sept. Sunny
Sunny
 24° /16° 0 mm 1.4
19 Sept. Patchy rain possible
Patchy rain possible
 24° /19° 0.4 mm 0.9
20 Sept. Moderate rain
Moderate rain
 19° /16° 5.8 mm 0.5
21 Sept. Patchy rain possible
Patchy rain possible
 18° /15° 2.2 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 16° /15° 3.6 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 16° /15° 4.1 mm 4
24 Sept. Partly cloudy
Partly cloudy
 18° /14° 0.1 mm 5
25 Sept. Overcast
Overcast
 17° /14° 0 mm 4
26 Sept. Sunny
Sunny
 18° /12° 0 mm 4
27 Sept. Overcast
Overcast
 18° /13° 0 mm 4
28 Sept. Sunny
Sunny
 19° /14° 0 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 19° /16° 0.2 mm 4
30 Sept. Sunny
Sunny
 21° /16° 0 mm 5
Next
Important Notice
Our weather forecast for Cantabria 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 Cantabria forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Cantabria weather in September vs August vs October

Compare September weather in Cantabria 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 Cantabria? Discover the best time to visit

Cantabria in September - FAQ

What are the expected maximum and minimum temperatures in Cantabria 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 Cantabria during September?
Significant rainfall exceeding 116.8 mm is expected in Cantabria during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cantabria during September?
The average wind speed in Cantabria during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Cantabria in September?

As you prepare for your trip to Cantabria 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 Cantabria, 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 Cantabria

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

UV exposure in Cantabria during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in Cantabria
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Provincia de Cantabria
Top locations in Cantabria
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San SebastiánSantander
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Location coordinates Where is Cantabria?

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

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