Barcelona weather in August
August in Barcelona: hot, a little rain — a great time to visit.
#11 of 12 months in Barcelona · #348 of 604 destinations to visit in August · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Barcelona climate normals — August
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 72°F | |
| Feels like (high) | 32°C / 90°F | |
| Rainfall | 43 mm / 1.7 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 13.8 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Barcelona in August — FAQ
- Is August a good time to visit Barcelona?
- August in Barcelona: hot, a little rain — a great time to visit. It ranks #11 of 12 months for Barcelona on SeasonMap's comfort score (76/100).
- What is the weather like in Barcelona in August?
- In August, Barcelona averages a daily high of 28.9°C and a low of 22°C, with about 43.1 mm of rain over roughly 6.8 rainy days.
- What is the air quality in Barcelona in August?
- Barcelona has a mean US Air Quality Index of about 55 in August.