Weather in San Sebastián for May 2025
The forecast for the next days in San Sebastián predicts temperatures to be around 17 °C, close to the historical average.
In general, the average temperature in San Sebastián at the beginning of May is 16.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 17.6 °C by the end of May.
The climate of San Sebastián in May is notably wet, with an average of 15 rainy days, and a total of 76.5 mm of precipitation.
Is May a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.
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San Sebastián Weather May
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2  19° | 3 20° | 4 17° | |||
| 5 12° | 6 14° | 7  15° | 8 16° | 9 16° | 10 17° | 11 18° |
| 12 19° | 13  18° | 14 14° | 15 13° | 16  15° | 17 15° | 18 12° |
| 19 13° | 20 15° | 21 14° | 22 15° | 23 16° | 24  17° | 25 20° |
| 26 15° | 27 16° | 28 19° | 29 20° | 30 16° | 31 17° |
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Temperatures trend during May in San Sebastián
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 18° /12° | 0.2 mm | 1.7 | |
| 2 May | Moderate rain | 19° /12° | 7.7 mm | 1.2 | |
| 3 May | Patchy rain possible | 20° /11° | 0.9 mm | 1.4 | |
| 4 May | Moderate rain | 17° /11° | 5.7 mm | 0.7 | |
| 5 May | Moderate rain | 12° /9° | 11.7 mm | 0.2 | |
| 6 May | Patchy rain possible | 14° /8° | 0.1 mm | 3 | |
| 7 May | Sunny | 15° /7° | 0 mm | 4 | |
| 8 May | Sunny | 16° /7° | 0 mm | 4 | |
| 9 May | Patchy rain possible | 16° /10° | 1.2 mm | 3 | |
| 10 May | Sunny | 17° /8° | 0 mm | 4 | |
| 11 May | Sunny | 18° /7° | 0 mm | 4 | |
| 12 May | Sunny | 19° /10° | 0 mm | 4 | |
| 13 May | Cloudy | 18° /10° | 0 mm | 3 | |
| 14 May | Patchy rain possible | 14° /9° | 1.2 mm | 3 | |
| 15 May | Light rain shower | 13° /9° | 2.9 mm | 3 | |
| 16 May | Light drizzle | 15° /9° | 2.7 mm | 4 | |
| 17 May | Light rain shower | 15° /7° | 2.5 mm | 4 | |
| 18 May | Light rain shower | 12° /9° | 9.6 mm | 3 | |
| 19 May | Light rain shower | 13° /9° | 9.7 mm | 3 | |
| 20 May | Patchy rain possible | 15° /8° | 0.7 mm | 4 | |
| 21 May | Light rain shower | 14° /10° | 4.1 mm | 3 | |
| 22 May | Light rain shower | 15° /9° | 4 mm | 4 | |
| 23 May | Patchy rain possible | 16° /7° | 0.2 mm | 4 | |
| 24 May | Partly cloudy | 17° /10° | 0.1 mm | 5 | |
| 25 May | Patchy rain possible | 20° /11° | 0.8 mm | 5 | |
| 26 May | Patchy rain possible | 15° /12° | 0.3 mm | 4 | |
| 27 May | Patchy rain possible | 16° /9° | 0.4 mm | 4 | |
| 28 May | Partly cloudy | 19° /9° | 0 mm | 5 | |
| 29 May | Sunny | 20° /11° | 0 mm | 6 | |
| 30 May | Light rain shower | 16° /11° | 0.8 mm | 4 | |
| 31 May | Patchy rain possible | 17° /10° | 0.1 mm | 4 | |
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San Sebastián in May - FAQ
What to pack to San Sebastián in May?
As you prepare for your trip to San Sebastián in May, 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 May, 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
- 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
May rainfall patterns in San Sebastián
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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.