SeasonMapSantander weather in May
Spain
May in Santander: nice, a little rain, with muggy air — an excellent time to visit.
#4 of 12 months in Santander · #468 of 1383 destinations to visit in May · comfort 85/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Santander in May
Other months in Santander
Santander's forum describes July as mild rather than hot by Spanish standards, with beautiful sunshine possible but never guaranteed on the Bay of Biscay coast. Regulars are candid that this 'Green Coast' region stays damp and humid much of the time thanks to the surrounding mountains, and that a morning drizzle turning to afternoon sun (or the reverse) is a completely normal pattern.
Add your own note from Santander's card on the map.
Santander climate normals — May
| Daytime high | 18°C / 64°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Feels like (high) | 18°C / 64°F | |
| Sea temperature | 16°C / 62°F | 🧊 bracing |
| Rainfall | 70 mm / 2.8 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 11.4 h/day | |
| Daylight | 14.7 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Santander in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 4 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Santander's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSantander's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
Nearby, and something's on
Within 300 km of Santander — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Santander?
Santander in May — FAQ
- Is May a good time to visit Santander?
- May in Santander: nice, a little rain, with muggy air — an excellent time to visit. It ranks #4 of 12 months for Santander on SeasonMap's comfort score (85/100).
- What is the weather like in Santander in May?
- In May, Santander averages a daily high of 17.7°C and a low of 12.5°C, with about 70.3 mm of rain over roughly 9.9 rainy days.
- What is the air quality in Santander in May?
- Santander has a mean US Air Quality Index of about 53 in May.
Other months in Santander
Compare Santander in May
Warmer or cooler than Santander in May
Similar destinations in Southern Europe — May
Within 300 km: Bilbao's Cantabrian anchovy season around 15 Mar – 15 Jun.