Weather overview

In September, Bilbao's weather becomes comfortably mild, making it a lovely time to explore the city. Average daytime temperatures range around 22°C (72°F), while in the evenings, you can expect cooler conditions around 14°C (57°F). Although it’s generally pleasant, prepare for some showers, as average precipitation levels for the month reach approximately 90 mm. Humidity often hovers around 75%, lending a refreshing feel to the air. You'll generally find a light breeze flowing through the city, but it rarely disrupts outdoor plans.

Activities and seasonal highlights

With such pleasant weather, September is an inviting time to experience the outdoor charm of Bilbao. Head to the iconic Guggenheim Museum or explore the charming streets of the Old Town, known as Casco Viejo. For nature lovers, a hike in the nearby green hills, such as Pagasarri, promises rewarding views without the summer heat. While you're at it, a stroll through the Doña Casilda Park can be quite enjoyable. History buffs might find the Bilbao Fine Arts Museum particularly appealing.

September also brings an array of cultural events that you might enjoy. The Zinemaldia, a prestigious international film festival, takes place nearby in San Sebastián, adding to the cultural buzz of the region. Don't miss out on Aste Nagusia, a lively local fiesta celebrated at the end of August and sometimes extending into early September, known for its live music, performances, and delicious local cuisine.

What to pack

When packing for Bilbao in September, think comfort and versatility. Layering is key to adapting to the changing temperatures throughout the day. Opt for light clothing for daytime excursions, but pack a light jacket or sweater for the cooler evenings. Comfortable walking shoes are a must for exploring both city streets and surrounding hiking trails. Don't forget to bring a raincoat or travel umbrella to stay dry during occasional showers. Sunglasses and sunscreen are handy for sun-soaked days, and you might want to pack a hat for added comfort.

FAQs

Is Bilbao, Spain crowded during September?

September in Bilbao tends to be less crowded than the peak summer months. While there’s still a good number of visitors enjoying the city’s cultural attractions and festivals, you’ll find it easier to explore popular sites without the hustle and bustle of peak tourist season.

Can you swim or enjoy outdoor activities?

While the sea temperature might be cooling down, you can still enjoy outdoor activities. Explore Bilbao’s beautiful parks and nearby hiking trails, and take in the lush scenery. Local beaches like Playa de Ereaga remain an option for a leisurely beach day with cooler water temperatures, just remember the shifting tides.

What’s the best way to get around Bilbao, Spain in September?

Getting around Bilbao is straightforward thanks to its efficient public transport system. The city’s metro and buses are easy to navigate and well-connected, making it simple to explore different areas. Walking is also a great way to explore, especially in the more compact Old Town. Don’t hesitate to hop on a tram to experience a scenic local commute.