Weather in Bilbao for May 2026
In general, the average temperature in Bilbao at the beginning of May is 17.9 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20.3 °C by the end of May.
Bilbao experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 81.1 mm.
Is May a good time to visit Bilbao? check out the best time to travel to Bilbao page.
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Bilbao Weather May
Temperatures trend during May in Bilbao
May weather in Bilbao day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Patchy rain possible | 17° /9° | 3.4 mm | 4 | |
| 2 May | Patchy rain possible | 17° /9° | 2.3 mm | 4 | |
| 3 May | Patchy rain possible | 20° /10° | 0.6 mm | 5 | |
| 4 May |  Partly cloudy | 19° /11° | 1.8 mm | 5 | |
| 5 May | Partly cloudy | 17° /11° | 3.8 mm | 5 | |
| 6 May | Patchy rain possible | 17° /10° | 1.4 mm | 4 | |
| 7 May | Patchy rain possible | 18° /10° | 0.5 mm | 4 | |
| 8 May |  Sunny | 20° /10° | 0.1 mm | 5 | |
| 9 May |  Moderate or heavy rain shower | 20° /10° | 4.5 mm | 5 | |
| 10 May |  Cloudy | 20° /11° | 4.1 mm | 5 | |
| 11 May | Patchy rain possible | 19° /11° | 3.3 mm | 5 | |
| 12 May | Moderate or heavy rain shower | 18° /10° | 6.8 mm | 4 | |
| 13 May | Light rain shower | 18° /10° | 6.2 mm | 4 | |
| 14 May | Moderate or heavy rain shower | 18° /11° | 9.2 mm | 4 | |
| 15 May | Light rain shower | 17° /12° | 4.9 mm | 4 | |
| 16 May | Patchy rain possible | 18° /11° | 2.5 mm | 4 | |
| 17 May | Sunny | 19° /12° | 1 mm | 5 | |
| 18 May | Patchy rain possible | 21° /11° | 1.1 mm | 5 | |
| 19 May | Light rain shower | 18° /11° | 4.8 mm | 4 | |
| 20 May | Partly cloudy | 19° /11° | 0.9 mm | 5 | |
| 21 May | Patchy rain possible | 18° /11° | 1.9 mm | 4 | |
| 22 May | Patchy rain possible | 18° /12° | 3.1 mm | 4 | |
| 23 May | Patchy rain possible | 17° /11° | 2.7 mm | 4 | |
| 24 May | Patchy rain possible | 17° /10° | 2.6 mm | 4 | |
| 25 May | Patchy rain possible | 19° /11° | 1.4 mm | 5 | |
| 26 May | Patchy rain possible | 18° /11° | 0.3 mm | 4 | |
| 27 May | Patchy rain possible | 20° /11° | 0.4 mm | 5 | |
| 28 May | Sunny | 21° /12° | 0.7 mm | 6 | |
| 29 May | Partly cloudy | 22° /13° | 0.9 mm | 6 | |
| 30 May | Moderate rain at times | 21° /13° | 3.5 mm | 5 | |
| 31 May | Cloudy | 21° /13° | 0.4 mm | 5 | |
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Bilbao in May - FAQ
What to pack to Bilbao in May?
As you prepare for your trip to Bilbao in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Bilbao, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
May rainfall patterns in Bilbao
UV exposure in Bilbao during May
Quick links
Where is Bilbao?Get accurate weather forecasts for Bilbao, located at latitude 43.263 and longitude -2.925. Stay updated with localized weather information tailored for Bilbao.