Climate Insights for Bermeo

The climate in Bermeo is temperate. The average annual temperature is 15°C and approximately 1321mm of precipitation falls per year. Bermeo receives a notable amount of rainfall throughout the year, including during its driest month. Bermeo is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to 10°C.

Bermeo sees moderate temperature variation throughout the year, ranging from 10°C to 22°C. August is the warmest month, though highs remain moderate at 22°C with a mean of 21°C. February is the coolest month, with minimum temperatures around 10°C and an average of 11°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.

Bermeo is a fairly wet location, receiving approximately 1321mm of precipitation annually, which averages out to around 110mm per month. The wettest month is November, averaging 196mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 44mm. That's 152mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Bermeo is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 6km/h in winter, 5km/h in spring, 4km/h in summer, 5km/h in autumn.

It is currently summer in Bermeo, which began on June 21, 2026. Bermeo 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 August at around 22°C, while the coldest stretch bottoms out in February near 10°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.

The best time to visit Bermeo is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 63mm per month. By contrast, February can be quite cold with temperatures dropping to 10°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 Bermeo 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.