Our weather and climate analysis offers a detailed understanding of average weather patterns for locations across the globe. Derived from 26 years of historical simulated weather data from ECMWF, it provides valuable insights into typical weather conditions, including air temperature, humidity, precipitation, cloud cover and wind. It is important to note the data is not observational, but rather derived from climate reanalysis.
Our database was last updated in January 2026, and current weather and climate guides are derived from an hourly dataset spanning 26 years (2000 to 2025). Our database contain modified Copernicus Climate Change Service information for these years. Refer to our Terms for full acknowledgements and disclaimers.
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Discover if upcoming months are expected to be warmer, colder, wetter, or drier than average
What is the best time to visit Barcelona to enjoy the optimal weather conditions?
This quick reference weather table contains a summary of the annual climate trends in Barcelona. It contains key metrics, including average monthly high & low temperatures, rainfall, humidity and UV index. The data is presented on a monthly basis, allowing you to see how each these weather components change throughout the year.
Barcelona's long-term climate patterns earn these Weather Badges.
Explore the most extreme weather events in Barcelona over the past 26 years, including record highs and lows for temperatures, rainfall, and wind speeds. This data is sourced from the latest ERA5 reanalysis model spanning 2000 to 2025.
Explore weather patterns in areas close to Barcelona, Spain
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Use our Climate Finder to search locations by their temperature and humidity patterns.
Weather guides, climate insights, and travel planning stories that talk about Barcelona.
Barcelona experiences a temperate climate defined by warm summers and mild winters, making it a year-round destination. WeatherBox data shows that average daily temperatures shift from 9.2°C (48.6°F) in the colder months to 23.0°C (73.4°F) during the summer season. While the city enjoys significant clear skies with up to 347.4 of sunshine during peak months, the weather becomes more variable later in the year when cloud coverage reaches 73.2.
Thermal conditions are generally moderate, with the highest average daily temperatures reaching 27.4°C (81.3°F) in August. Extreme or scorching heat is infrequent, as historical statistics indicate temperatures rarely exceed 30.5°C (86.9°F). Conversely, the coolest period sees average daily lows dipping to 5.4°C (41.7°F). Freezing conditions are exceptionally rare, with data suggesting temperatures rarely fall below 2.5°C (36.5°F) even during the deepest winter weeks.
Precipitation is unevenly distributed, characterized by heavy autumn rains and dry summer spells. October is typically the wettest month, accumulating 95 mm (4 in) of precipitation, while the driest month sees just 30 mm (1 in). Humidity remains a constant factor, with the average relative humidity peaking at 79.9. During the sunniest periods, the average peak UV Index is 7.8. Winds generally arrive from the SSW, with the highest mean speeds reaching 10.4 km/h (6.4 mph). Click through to view the advanced weather charts on WeatherBox for a detailed breakdown of these climate patterns.