Mild
Average highs are around 25°C, so days are mild rather than hot.
August verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 82mm, so some wet days are possible.
Monthly averages
Temp
25°C
Rain
82mm
Sun
5.9h
Sea
22°C
Weather score
57
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 82mm, so some wet days are possible.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 22°C, so the water can feel cool.
Map
Compare Bilbao, Spain with nearby places by weather score, rain, sun, temperature, and swim conditions.
August25°C average high
August is one of Bilbao's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August82mm average rain
August sits near Bilbao's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJune to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August5.9 hours average sun
August is brighter than Bilbao's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
August22°C average sea
August is one of Bilbao's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
August57 weather score
August is one of Bilbao's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.