Best time to visit Bilbao
The best months to visit Bilbao are June, September and July, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
June, September and July score best for Bilbao weather:
- June22° / 16°CReal warmth arrives and the rain backs off; Getxo beaches start filling on weekends.
- July23° / 18°CThe driest month — comfortable mid-20s rather than baking; the best month for Gaztelugatxe.
- September23° / 16°CWarm seas and thinning crowds — the connoisseur's month on the Basque coast.
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By TripSapien Research · Updated May 20, 2026
Bilbao weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight | Sea |
|---|---|---|---|---|---|---|
| January | 13° | 8° | 122 | 20 | 9h | 14° |
| February | 13° | 8° | 103 | 18 | 10h | 13° |
| March | 15° | 9° | 96 | 19 | 11h | 13° |
| April | 16° | 10° | 93 | 20 | 13h | 14° |
| May | 19° | 13° | 79 | 19 | 14h | 16° |
| JuneBest weather | 22° | 16° | 70 | 17 | 15h | 20° |
| JulyBest weather | 23° | 18° | 58 | 17 | 15h | 23° |
| August | 24° | 18° | 54 | 18 | 15h | 22° |
| SeptemberBest weather | 23° | 16° | 68 | 17 | 13h | 21° |
| October | 21° | 14° | 87 | 18 | 12h | 19° |
| November | 16° | 11° | 145 | 20 | 10h | 17° |
| December | 14° | 9° | 106 | 19 | 9h | 15° |
Temperatures in °C. Long-term monthly averages.
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Bilbao month by month
January
Bilbao in January: 12.7°C high, 7.8°C low, 121.7mm rain over 20 days, 9.4h daylight. Mild but rainy — flexible plans pay off.
February
Bilbao in February: 13.3°C high, 7.7°C low, 103.3mm rain over 18 days, 9.9h daylight. Mild but rainy — flexible plans pay off.
March
Bilbao in March: 15.1°C high, 9.1°C low, 95.5mm rain over 19 days, 11.2h daylight. Mild but rainy — flexible plans pay off.
April
Bilbao in April: 16.2°C high, 10.3°C low, 92.5mm rain over 20 days, 12.8h daylight. Mild but rainy — flexible plans pay off.
May
Bilbao in May: 18.9°C high, 12.9°C low, 79.2mm rain over 19 days, 14.2h daylight. Mild but rainy — flexible plans pay off.
JuneBest weather
Bilbao in June: 21.7°C high, 15.8°C low, 69.8mm rain over 17 days, 15.2h daylight. Mild but rainy — flexible plans pay off.
JulyBest weather
Bilbao in July: 23.4°C high, 17.6°C low, 57.6mm rain over 17 days, 15.3h daylight. Mild but rainy — flexible plans pay off.
August
Bilbao in August: 24.2°C high, 18.1°C low, 53.9mm rain over 18 days, 14.5h daylight. Mild but rainy — flexible plans pay off.
SeptemberBest weather
Bilbao in September: 22.7°C high, 16.4°C low, 67.6mm rain over 17 days, 13.2h daylight. Mild but rainy — flexible plans pay off.
October
Bilbao in October: 20.5°C high, 14.3°C low, 87mm rain over 18 days, 11.7h daylight. Mild but rainy — flexible plans pay off.
November
Bilbao in November: 15.7°C high, 10.8°C low, 144.7mm rain over 20 days, 10.3h daylight. Mild but rainy — flexible plans pay off.
December
Bilbao in December: 13.5°C high, 8.6°C low, 106.4mm rain over 19 days, 9.2h daylight. Mild but rainy — flexible plans pay off.
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