Weather in Bilbao in July

Prime time. July is about as good as Bilbao gets. Highs average 23.2 °C, lows 18.9 °C, and rain falls on 8 days — nothing in the month is working against you.

July is the highest-scoring month of the twelve. The nearest rival is August, and the month at the other end of the year is January.

Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 4.3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest July day reached 35 °C and the coldest night fell to 14.4 °C.

July is moderately variable: 15 mm in the driest year against 98 mm in the wettest, around an average of 35 mm. Roughly two Julys in three land near that average, and the third does something else entirely.

Wind is light at 12.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 76%, high enough to notice on the warm days without dominating them.

How July sits in the year

Temperatures hold steady either side: 21.1 °C in June, 23.2 here, 24.1 in August. Nothing about the timing within the month matters much.

Daylight in July

July is at or near the longest days of Bilbao's year: 15.1 hours of daylight, losing 0.7 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

Sea temperature

The sea sits at about 20.9 °C in July — swimmable, but it takes a moment to commit. This is the warmest the water gets all year.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Bilbao versus nearby

If Bilbao is one option among several, the nearby comparison is worth making. Gasteiz / Vitoria is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Gijón is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: July is the answer for Bilbao. If it is booked out or priced out, August is the next best thing at 0 points behind, and January is the month to keep off the shortlist.

Every month in Bilbao

See all twelve months in Bilbao, or where else to go in July.