Santiago de Compostela
September
Weather in Santiago de Compostela for September 2025
Your guide to Santiago de Compostela weather in September - trends and predictions
In general, the average temperature in Santiago de Compostela at the beginning of September is 23 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.6 °C by the end of September.
Santiago de Compostela in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 148.5 mm.
Is September a good time to visit Santiago de Compostela? check out the best time to travel to Santiago de Compostela page.
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Temperatures
Rain 🌧️
More
11
Dry days
19
Rainy days
0
Snow days
23°/12°
Temperatures
11 km/h
Avg max wind
77 %
Avg humidity
Santiago de Compostela in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  20° | 3 25° | 4  24° | 5  22° | 6  23° | 7 24° |
| 8 24° | 9  23° | 10 24° | 11 23° | 12 21° | 13 24° | 14 29° |
| 15  28° | 16 26° | 17 23° | 18 24° | 19 24° | 20 21° | 21 18° |
| 22 20° | 23 21° | 24  19° | 25 22° | 26 21° | 27 18° | 28 22° |
| 29 23° | 30 26° |
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Temperatures trend during September in Santiago de Compostela
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Torrential rain shower | 23° /13° | 21 mm | 5 | |
| 2 Sept. | Fog | 20° /10° | 0.9 mm | 5 | |
| 3 Sept. | Fog | 25° /11° | 0.1 mm | 6 | |
| 4 Sept. | Light rain shower | 24° /12° | 3.7 mm | 5 | |
| 5 Sept. | Patchy light drizzle | 22° /12° | 2.6 mm | 5 | |
| 6 Sept. | Thundery outbreaks possible | 23° /10° | 3.5 mm | 5 | |
| 7 Sept. | Mist | 24° /11° | 1.5 mm | 5 | |
| 8 Sept. | Light rain shower | 24° /12° | 15.3 mm | 6 | |
| 9 Sept. | Patchy light rain with thunder | 23° /13° | 4.3 mm | 5 | |
| 10 Sept. | Patchy light rain with thunder | 24° /12° | 2.2 mm | 6 | |
| 11 Sept. | Light rain shower | 23° /11° | 2.7 mm | 6 | |
| 12 Sept. | Fog | 21° /12° | 0.4 mm | 5 | |
| 13 Sept. | Fog | 24° /11° | 0 mm | 6 | |
| 14 Sept. | Fog | 29° /11° | 0 mm | 7 | |
| 15 Sept. | Partly cloudy | 28° /12° | 0 mm | 7 | |
| 16 Sept. | Patchy light rain with thunder | 26° /12° | 1.2 mm | 6 | |
| 17 Sept. | Light rain shower | 23° /11° | 6.8 mm | 6 | |
| 18 Sept. | Light rain shower | 24° /11° | 12.4 mm | 6 | |
| 19 Sept. | Fog | 24° /11° | 0 mm | 6 | |
| 20 Sept. | Light rain | 21° /12° | 12.8 mm | 5 | |
| 21 Sept. | Light rain shower | 18° /10° | 14.3 mm | 4 | |
| 22 Sept. | Light rain shower | 20° /9° | 0.7 mm | 5 | |
| 23 Sept. | Fog | 21° /8° | 0 mm | 5 | |
| 24 Sept. | Sunny | 19° /11° | 1.8 mm | 5 | |
| 25 Sept. | Light rain shower | 22° /13° | 19.4 mm | 5 | |
| 26 Sept. | Fog | 21° /11° | 18.7 mm | 5 | |
| 27 Sept. | Partly cloudy | 18° /9° | 1.6 mm | 5 | |
| 28 Sept. | Mist | 22° /10° | 0 mm | 5 | |
| 29 Sept. | Fog | 23° /12° | 0.2 mm | 5 | |
| 30 Sept. | Sunny | 26° /14° | 0.3 mm | 7 | |
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Important Notice
Our weather forecast for Santiago de Compostela 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 Santiago de Compostela forecast closer to your planned date for the most up-to-date weather information.
Santiago de Compostela in September - FAQ
What are the expected maximum and minimum temperatures in Santiago de Compostela during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Santiago de Compostela during September?
Significant rainfall exceeding 148.5 mm is expected in Santiago de Compostela during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Santiago de Compostela during September?
The average wind speed in Santiago de Compostela during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Santiago de Compostela in September?
As you prepare for your trip to Santiago de Compostela 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 Santiago de Compostela, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long 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
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Santiago de Compostela
Explore the daily rainfall trends and prepare for Santiago de Compostelas September weather 💧
UV exposure in Santiago de Compostela during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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