Climate Insights for Barbastro

The climate in Barbastro is temperate. The average annual temperature is 15°C and approximately 621mm of precipitation falls per year. October is the wettest month, receiving around 84mm of rainfall. Barbastro is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to 0°C.

Temperatures in Barbastro vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 34°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 0°C and an average of 5°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Barbastro is a relatively dry area, receiving approximately 621mm of precipitation annually, which averages out to around 52mm per month. The wettest month is October, averaging 84mm of rainfall. September and April also tend to see above-average precipitation. The driest month is December, with just 26mm. That's 58mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Barbastro is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 13km/h in winter, 15km/h in spring, 15km/h in summer, 13km/h in autumn.

It is currently spring in Barbastro, which began on March 20, 2026. Barbastro is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 34°C, while the coldest stretch bottoms out in January near 0°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Barbastro is during May, June, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 67mm per month. By contrast, July can be uncomfortably hot with highs reaching 34°C, while January is the coldest period with lows dropping to 0°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Barbastro based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.