Barcelona weather in May
May in Barcelona: nice, a little rain — one of the best months to visit.
#1 of 12 months in Barcelona · #70 of 604 destinations to visit in May · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Barcelona climate normals — May
| Daytime high | 21°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 47 mm / 1.8 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 12.3 h/day | |
| Daylight | 14.5 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 56 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Barcelona in May — FAQ
- Is May a good time to visit Barcelona?
- May in Barcelona: nice, a little rain — one of the best months to visit. It ranks #1 of 12 months for Barcelona on SeasonMap's comfort score (90/100).
- What is the weather like in Barcelona in May?
- In May, Barcelona averages a daily high of 21.4°C and a low of 13.7°C, with about 46.8 mm of rain over roughly 8 rainy days.
- What is the air quality in Barcelona in May?
- Barcelona has a mean US Air Quality Index of about 56 in May.