Ermua Weather in May

May in Ermua averages 19°C (66°F) during the day and 11°C (52°F) at night. Quite a bit of rainfall is typical this month, with around 99 mm (3.9 in) on average. An umbrella is a good idea.

Rainfall in Ermua in May

Historically, the month has about 16 days of rain, averaging 99 mm (3.9 in) in total. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Ermua in May

Expect highs of 19°C (66°F) in Ermua in May, with nights dropping to around 11°C (52°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Ermua in May

The area experiences a moderate amount of sunshine, with approximately 168 hours of sunlight expected. This means a decent mix of sun and overcast.

If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Ermua.

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• January
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For a detailed overview over the year and the best time to visit Spain, check out our Ermua's climate page.

Ermua Temperature in May

Min Temperature 11°C (52°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 54%  

Precipitation 99 mm (3.9 in)  

Rainy days 16 days  

Humidity 69% *  

Sunshine 168 hours *  

Percentage Sunshine *  

* Data from: Bilbao, Spain (36 KM, 22 Miles).

What to Wear in Ermua in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Ermua in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Spain, check out our Ermua's climate page.

More climate data for Ermua

Temperature Rainfall Sunshine Humidity

See the full Ermua climate overview or explore weather in Spain.