What May feels like in Bilbao
In Bilbao, May brings late spring. Afternoons are mild and comfortable for most people in light layers. The gap between afternoon and night is small, so nights are cool and the temperature hardly changes after dark. Moist air is typical, yet it seldom feels heavy at this time of year.
Rain in Bilbao in May
Rain is part of normal life this month, falling on about every other day. A rainy day brings about 5.6 mm (0.2 in) on average — steady rain rather than a passing shower. Across the year Bilbao averages about 6.9 mm per rainy day, so May is typical.
Daylight and sunshine in May
On 15 May the sun rises at about 6:49 am and sets around 9:27 pm local time, giving 14 h 39 min of daylight. Since mid-April the day has gained 1 h 17 min. Measured sunshine covers about 71% of the daylight — there are plenty of bright spells.
How May compares to the rest of the year
In Bilbao's temperature order, May sits as the 6th warmest month. Afternoons run 2.3°C (4.1°F) warmer than in April, with 6 mm less rain. June continues the upward trend. June averages a high of 21.8°C (71.2°F).
Who May suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: a good fit — good conditions for sitting outside.
- Beach: less ideal — too many rainy days.
Tips for visiting Bilbao in May
Rain Protection
A compact umbrella and a light waterproof jacket.
Sunglasses
Bright days make sunglasses worth packing.
Quick questions
How warm is Bilbao in May?
Afternoons average 18.8°C (65.8°F) and nights about 11.7°C (53.1°F) — mild by most people's standards. It is the 6th warmest month of the year.
Does it rain a lot in Bilbao in May?
It does: about 15 rainy days bring roughly 84 mm, so plan some indoor options.
What should I wear in Bilbao in May?
The numbers point to rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.
Is May or June better for visiting Bilbao?
June scores better on our climate ranking (#4 of 12 vs #6), rated Good against Good. June is warmer and has fewer rainy days.