Climate Insights for Alejo González (Bilbao)

The climate in Alejo González (Bilbao) is warm and mild. The average annual temperature is 24°C and approximately 152mm of precipitation falls per year. September is the wettest month, receiving around 34mm of rainfall. Alejo González (Bilbao) is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, May, July. The coldest months are January, December, February, when temperatures can drop to 9°C.

Temperatures in Alejo González (Bilbao) vary considerably across the year, with a 28°C difference between the coldest and warmest months. June is the hottest month, with daytime highs reaching 37°C and an average of 30°C. January is the coolest month, with minimum temperatures around 9°C and an average of 15°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Alejo González (Bilbao) is a quite dry location, receiving approximately 152mm of precipitation annually, which averages out to around 13mm per month. The wettest month is September, averaging 34mm of rainfall. October and August also tend to see above-average precipitation. The driest month is April, with just 1mm. That's 33mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Alejo González (Bilbao) is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in December, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 16km/h in winter, 21km/h in spring, 22km/h in summer, 17km/h in autumn.

It is currently spring in Alejo González (Bilbao), which began on March 20, 2026. Alejo González (Bilbao) 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 June at around 37°C, while the coldest stretch bottoms out in January near 9°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Alejo González (Bilbao) is during January, February, March, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 10mm per month. By contrast, June can be uncomfortably hot with temperatures reaching 37°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Alejo González (Bilbao) 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.