Weather in San Sebastián for May 2027
In general, the average temperature in San Sebastián at the beginning of May is 15.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.8 °C by the end of May.
San Sebastián in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 116.8 mm.
Is May a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.
✨ Is May a good time to visit San Sebastián? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
San Sebastián Weather May
Temperatures trend during May in San Sebastián
May weather in San Sebastián day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Light rain | 17° /10° | 4.3 mm | 4 | |
| 2 May | Light rain | 17° /10° | 3.7 mm | 3 | |
| 3 May | Light rain | 17° /9° | 4.7 mm | 3 | |
| 4 May | Light rain | 16° /11° | 6.1 mm | 3 | |
| 5 May |  Moderate rain | 15° /9° | 12.1 mm | 3 | |
| 6 May | Light rain | 14° /8° | 2.5 mm | 3 | |
| 7 May |  Patchy rain possible | 16° /8° | 0.5 mm | 4 | |
| 8 May | Light rain | 17° /9° | 2.5 mm | 5 | |
| 9 May | Light rain | 19° /9° | 3.5 mm | 6 | |
| 10 May | Light rain | 19° /11° | 3.6 mm | 5 | |
| 11 May |  Patchy light rain with thunder | 18° /10° | 6.3 mm | 5 | |
| 12 May | Patchy rain possible | 16° /10° | 1.6 mm | 3 | |
| 13 May | Moderate rain | 17° /10° | 7.3 mm | 4 | |
| 14 May | Moderate rain | 14° /10° | 16.4 mm | 3 | |
| 15 May | Moderate rain | 13° /9° | 20.9 mm | 3 | |
| 16 May | Patchy rain possible | 15° /9° | 1.9 mm | 3 | |
| 17 May | Patchy rain possible | 16° /9° | 2 mm | 4 | |
| 18 May | Light rain | 18° /10° | 2.8 mm | 5 | |
| 19 May | Light rain shower | 17° /11° | 2.2 mm | 5 | |
| 20 May | Patchy rain possible | 18° /11° | 0.2 mm | 6 | |
| 21 May | Light rain | 17° /11° | 3.2 mm | 4 | |
| 22 May | Light rain | 20° /13° | 3.3 mm | 5 | |
| 23 May |  Sunny | 20° /11° | 0.3 mm | 6 | |
| 24 May | Sunny | 20° /12° | 0.1 mm | 6 | |
| 25 May |  Partly cloudy | 23° /15° | 0.2 mm | 6 | |
| 26 May | Patchy rain possible | 21° /14° | 0.6 mm | 5 | |
| 27 May | Light rain shower | 21° /13° | 0.4 mm | 6 | |
| 28 May | Sunny | 22° /13° | 0 mm | 6 | |
| 29 May | Sunny | 22° /13° | 0 mm | 7 | |
| 30 May | Light rain | 19° /14° | 3.4 mm | 6 | |
| 31 May | Patchy rain possible | 18° /12° | 0.2 mm | 6 | |
| Next | |||||
San Sebastián weather in May vs April vs June
| April | May | June | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 16°/9° | 18°/11° | 22°/15° |
| Rainfall | 55 mm | 117 mm | 68 mm |
| Wind | 15 km/h | 13.2 km/h | 12.9 km/h |
| Humidity | 76% | 79% | 79% |
| Rainy days | 13 days | 16 days | 12 days |
| Dry days | 17 days | 15 days | 18 days |
Planning a trip to San Sebastián? Discover the best time to visit
San Sebastián in May - FAQ
What are the expected maximum and minimum temperatures in San Sebastián during May?
How much rainfall should be expected in San Sebastián during May?
What are the typical wind conditions in San Sebastián during May?
May rainfall patterns in San Sebastián
UV exposure in San Sebastián during May
What to pack to San Sebastián in May?
Mild · highs around 18 °C, frequent showers
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
👟 Footwear
🎒 Accessories
Where is San Sebastián?Get accurate weather forecasts for San Sebastián, located at latitude 43.201 and longitude -4.423. Stay updated with localized weather information tailored for San Sebastián.