Weather in San Sebastián for September 2024
Until now, September 2024 in San Sebastián is cooler than usual, with temperatures averaging 18.9 °C, this is -2.6 °C below the typical seasonal average.
The forecast for the next days in San Sebastián predicts temperatures to be around 20 °C, close to the historical average.
In general, the average temperature in San Sebastián at the beginning of September is 21.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 19.7 °C by the end of September.
The climate of San Sebastián in September is notably wet, with an average of 15 rainy days.
Is September a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.
- New! Chat with our AI weatherman - it’s amazing and free.
San Sebastián in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | ||||||
| 2 17° | 3  21° | 4  23° | 5  22° | 6  22° | 7 23° | 8 24° |
| 9 23° | 10 21° | 11 21° | 12 18° | 13  20° | 14 21° | 15 23° |
| 16 22° | 17 23° | 18 20° | 19 22° | 20 22° | 21 19° | 22 20° |
| 23 20° | 24 19° | 25 20° | 26 22° | 27 17° | 28 18° | 29 21° |
| 30 21° |
You can click on date
Temperatures trend during September in San Sebastián
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 22° /15° | 10.1 mm | 5 | |
| 2 Sept. | Light rain shower | 17° /14° | 16.8 mm | 4 | |
| 3 Sept. | Mist | 21° /14° | 2.1 mm | 5 | |
| 4 Sept. | Patchy light rain | 23° /15° | 3.6 mm | 6 | |
| 5 Sept. | Partly cloudy | 22° /14° | 5.1 mm | 6 | |
| 6 Sept. | Sunny | 22° /13° | 1.6 mm | 6 | |
| 7 Sept. | Patchy rain possible | 23° /14° | 1.8 mm | 6 | |
| 8 Sept. | Patchy rain possible | 24° /14° | 1.6 mm | 6 | |
| 9 Sept. | Light rain shower | 23° /15° | 4.3 mm | 6 | |
| 10 Sept. | Light rain shower | 21° /13° | 1.5 mm | 5 | |
| 11 Sept. | Light rain shower | 21° /14° | 7.7 mm | 5 | |
| 12 Sept. | Mist | 18° /14° | 3.9 mm | 4 | |
| 13 Sept. | Cloudy | 20° /13° | 0.2 mm | 5 | |
| 14 Sept. | Cloudy | 21° /13° | 0 mm | 5 | |
| 15 Sept. | Partly cloudy | 23° /13° | 0 mm | 7 | |
| 16 Sept. | Patchy light drizzle | 22° /13° | 0.6 mm | 6 | |
| 17 Sept. | Patchy rain possible | 23° /13° | 1.3 mm | 6 | |
| 18 Sept. | Light rain shower | 20° /14° | 1.8 mm | 5 | |
| 19 Sept. | Partly cloudy | 22° /13° | 0.1 mm | 3 | |
| 20 Sept. | Patchy rain possible | 22° /14° | 0.8 mm | 2 | |
| 21 Sept. | Patchy rain possible | 19° /15° | 1.7 mm | 2 | |
| 22 Sept. | Patchy rain possible | 20° /13° | 0.4 mm | 2 | |
| 23 Sept. | Patchy rain possible | 20° /12° | 0.4 mm | 2 | |
| 24 Sept. | Patchy rain possible | 19° /12° | 0.2 mm | 4 | |
| 25 Sept. | Patchy rain possible | 20° /14° | 1.8 mm | 4 | |
| 26 Sept. | Patchy rain possible | 22° /19° | 0.1 mm | 5 | |
| 27 Sept. | Patchy rain possible | 17° /14° | 1.6 mm | 4 | |
| 28 Sept. | Patchy rain possible | 18° /13° | 0.1 mm | 3 | |
| 29 Sept. | Sunny | 21° /12° | 0 mm | 5 | |
| 30 Sept. | Patchy rain possible | 21° /15° | 1.8 mm | 4 | |
| Next | |||||
San Sebastián in September - FAQ
What to pack to San Sebastián in September?
As you prepare for your trip to San Sebastián 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 San Sebastián, 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
Quick links
Where is San Sebastián?Get accurate weather forecasts for San Sebastián, located at latitude 43.567 and longitude -5.9. Stay updated with localized weather information tailored for San Sebastián.