Mild
Average highs are around 25°C, so days are mild rather than hot.
Weather Guide
Bilbao, Spain Average Monthly Weather
Weather score32Poor annual avg
Best months: July, August, September
Across the year, average daytime temperatures are around 18°C, sunshine averages 4.3h per day, and rainfall totals about 1176mm. Sea temperatures average 16°C across the year.
Annual weather
Annual averages
Temp
18°C
Rain
1176mm
Annual total
Sun
4.3h
Sea
16°C
Weather score
32
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 51mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.4h per day, enough for a balanced month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Bilbao, Spain with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July25°C average high
July 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.
Rain
July51mm average rain
July is one of Bilbao's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJune to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6.4 hours average sun
July is one of Bilbao's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July21°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
July59 weather score
July 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.
