Weather in Бильбао by month: what to expect

The weather in Бильбао is mild year-round, shaped by its coastal location in northern Spain. Winters here are cool but rarely harsh, while summers stay warm without extreme heat. The city’s proximity to the Bay of Biscay softens temperature swings, making Бильбао a comfortable destination in any season.

Rainfall defines much of the year in Бильбао, especially from November to January, when the skies are most generous with showers. The driest months—July and August—offer the best chance of sunny days, though even then, brief rain isn’t uncommon. Spring and autumn bring a mix of sun and clouds, with temperatures that hover between 12 °C and 20 °C.

If you prefer fewer crowds and don’t mind a light jacket, Бильбао in April or September can be ideal. The city’s lush greenery thrives on the frequent rain, so even in wetter months, the landscapes stay vibrant.

In Бильбао, temperatures rarely stray into extremes. The coldest month, January, sees averages around 9.6 °C, with lows dipping to 5.2 °C at night. Frost is almost unheard of, and snow is a rare curiosity. By June, the mercury climbs to a pleasant 19.5 °C, with daytime highs reaching 24.3 °C.

Summer in Бильбао is warm but not stifling. July and August are the hottest months, with averages of 21.3 °C and 21.7 °C, and peaks around 27 °C. Evenings cool down comfortably, making it easy to enjoy outdoor dining or a stroll along the Nervión River. By October, temperatures ease back to 17.3 °C, signaling the shift toward cooler weather.

The sea temperature in Бильбао follows a similar rhythm. In January, the water hovers around 13.9 °C, while by August, it warms to a more inviting 22.3 °C. If you’re hoping to swim, July through September are the most suitable months, though the Atlantic remains brisk compared to the Mediterranean.

Бильбао is one of Spain’s wettest cities, with rain a frequent companion. The heaviest downpours occur in November, when the city receives nearly 200 mm of rain. January and December are also wet, with around 150 mm each. Even in the driest months, like July, you might still see 38 mm of rain, though it often comes in short bursts.

The rain in Бильбао isn’t usually relentless. Instead, it tends to arrive in brief, intense showers, leaving plenty of time for exploration between downpours. May and June are transitional months, with rainfall dropping to around 68 mm and 67 mm, respectively. If you’re planning outdoor activities, July and August offer the best odds for dry weather.

Despite the rain, Бильбао rarely feels gloomy. The city’s green hills and coastal scenery thrive on the moisture, and even on cloudy days, the light has a soft, diffused quality. If you’re visiting in November or December, a compact umbrella and waterproof shoes will serve you well.

For a trip to Бильбао in winter, pack layers that can handle both cool temperatures and rain. A waterproof jacket is essential, along with a warm sweater for evenings when the mercury dips to 5 °C. Comfortable walking shoes with good grip will help on wet cobblestones, and a scarf can add extra warmth without bulk.

In spring or autumn, Бильбао calls for versatile clothing. Light layers, like a long-sleeve shirt or a light fleece, work well for daytime temperatures between 12 °C and 20 °C. A foldable raincoat or a travel umbrella is still a good idea, as showers can pop up unexpectedly. Sunglasses are useful for the brighter days in May or September.

Summer in Бильбао is the easiest season to pack for. Light, breathable fabrics will keep you comfortable in temperatures up to 27 °C, while a light jacket or shawl is handy for breezy evenings. If you plan to visit the beach, swimwear and a quick-dry towel are worth bringing, though the Atlantic’s 22 °C water may not suit everyone. Don’t forget sunscreen—even on cloudy days, UV levels can be high.