Month guide · Ermua, Spain
Ermua in May: weather and what to expect
May is when Ermua warms up fastest: average highs climb 3°C on the month before. In May, Ermua averages highs of 18°C and lows of 11°C, with about 16 rainy days and 110 mm of rain. Highs are 3°C warmer than in April and 3°C cooler than in June. Crowds in Basque Country are high.
Is May a good time to visit?
Good for
No verdicts for Ermua in May yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Reliable dry weatherAbout 16 rainy days in the month
Daily highs through May
Town-level · ERA5-Land 1991-2020Highs climb about 4°C over the month. Nights below 5°C in about 1 in 5.
May in detail
Town-level · 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 Ermua |
|---|---|---|---|
| Archena, Murcia | 27°C | 4 | 573 km |
| Blanca, Murcia | 26°C | 5 | 565 km |
| Abarán, Murcia | 26°C | 5 | 562 km |
| Cieza, Murcia | 26°C | 5 | 558 km |
| Fortuna, Murcia | 26°C | 5 | 569 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · 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 13 to 11 a year on average.
Questions about Ermua in May
Is May a good time to visit Ermua?
It is less suited to reliable dry weather (about 16 rainy days in the month).
How warm is Ermua in May?
Average highs are 18°C and lows 11°C. April averages 15°C and June 21°C.
Does it rain much in Ermua in May?
About 16 days have at least 1 mm of rain, with 110 mm in total over the month.
Is Ermua 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 Ermua in May?
About 14 h 38 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