Overview
Barcelona is in Spain. The figures below are long-term monthly averages (2014-2023), not a forecast.
- Warmest month: July, with daytime highs around 28°C.
- Coolest month: January, with daytime highs around 13°C.
- Driest month: December, about 26 mm of rain.
- Wettest month: October, about 94 mm of rain.
- Sunniest month: July, about 13.5 hr of sunshine per day.
- Warmest sea: August, around 26°C.
Best months by holiday type
- Beach (warm air and sea)
- June, July, August, and September
Judged by simple climate rules applied to the monthly averages, not by local knowledge.
Climate by month
| Month | Day high | Night low | Sea | Rain (mm) | Rainy days | Sun (h/day) | Humidity | Wind (km/h) |
|---|---|---|---|---|---|---|---|---|
| January | 13°C | 5°C | 14°C | 43 mm | 4 | 7.9 | 75% | 11 km/h |
| February | 14°C | 6°C | 13°C | 37 mm | 6 | 8.7 | 76% | 10 km/h |
| March | 16°C | 8°C | 14°C | 41 mm | 7 | 9.9 | 75% | 11 km/h |
| April | 18°C | 10°C | 15°C | 59 mm | 8 | 10.8 | 76% | 10 km/h |
| May | 21°C | 14°C | 18°C | 48 mm | 7 | 12.3 | 75% | 10 km/h |
| June | 26°C | 18°C | 22°C | 32 mm | 6 | 13.1 | 72% | 9 km/h |
| July | 28°C | 21°C | 25°C | 29 mm | 5 | 13.5 | 72% | 9 km/h |
| August | 28°C | 22°C | 26°C | 55 mm | 7 | 12.2 | 74% | 9 km/h |
| September | 25°C | 19°C | 25°C | 91 mm | 11 | 10.2 | 79% | 9 km/h |
| October | 22°C | 15°C | 22°C | 94 mm | 8 | 9.0 | 81% | 9 km/h |
| November | 17°C | 10°C | 18°C | 61 mm | 8 | 7.8 | 77% | 10 km/h |
| December | 15°C | 6°C | 16°C | 26 mm | 4 | 7.6 | 78% | 9 km/h |
Similar destinations
Data and sources
- Air climate: Open-Meteo Historical Weather API (ERA5 / ERA5-Land reanalysis), 2014-2023. CC BY 4.0 (Open-Meteo); underlying ERA5 data: Copernicus licence
- Sea temperature: NOAA Coral Reef Watch CoralTemp v3.1 monthly SST (5 km), 2014-2023.
- Last updated October 8, 2026.