Month guide · Bilbao, Spain
Bilbao in May: weather and what to expect
In May, Bilbao averages highs of 18°C and lows of 12°C, with about 15 rainy days and 89 mm of rain. Highs are 3°C warmer than in April and 2°C cooler than in June. Crowds in Basque Country are high. These are regional figures for the wider area.
Is May a good time to visit?
Good for
No verdicts for Bilbao in May yet. They only use climate values that are precise enough to judge with.
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through May
Regional · ERA5-Land 1991-2020Highs climb about 3°C over the month. A day above 25°C happens in roughly 1 May in 2.
May in detail
Regional · ERA5-LandCrowds, holidays and daylight
Public holidays in May 2027
- 1 May Labor Day
Local (municipal) holidays are not included.
Warmer in May
Where is warm in May →| Place | High | Rain days | From Bilbao |
|---|---|---|---|
| Archena, Murcia | 27°C | 4 | 588 km |
| Blanca, Murcia | 26°C | 5 | 580 km |
| Abarán, Murcia | 26°C | 5 | 577 km |
| Cieza, Murcia | 26°C | 5 | 573 km |
| Fortuna, Murcia | 26°C | 5 | 585 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Regional · ERA5-LandMay highs are about the same as in 1991-2000, and May rainfall is about the same (2016-2025 against 1991-2000). Days above 20°C in May went from 9.2 to 8.1 a year on average.
Questions about Bilbao in May
How warm is Bilbao in May?
Average highs are 18°C and lows 12°C. April averages 15°C and June 20°C. These are regional figures for the wider area.
Does it rain much in Bilbao in May?
About 15 days have at least 1 mm of rain, with 89 mm in total over the month. These are regional figures for the wider area.
Is Bilbao busy in May?
In May 2025, nights booked through online platforms in Basque Country were about 60% of the busiest month, which we count as high. The figure is for the whole region and leaves out hotels.
How long are the days in Bilbao in May?
About 14 h 39 min from sunrise to sunset in the middle of the month.
Sources
Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology