Bilbao has a vibrant nightlife with locals typically heading out late at night. The best area to explore is the Casco Viejo (Old Town), with its narrow streets, lively bars, and traditional pintxos (tapas) scene. Some of the popular bars and clubs include Bar El Globo, La Vía Láctea, and Cotton Club. The Muelle de Marzana is another happening spot for nightlife, located near the riverfront. The rooftop bars in Bilbao are also gaining popularity, with options like the Guggenheim Bilbao Restaurant and the Azkuna Zentroa Rooftop Terrace offering stunning views of the city.

Casco Viejo: This is the historic heart of Bilbao and a great place to start exploring the city's nightlife. The narrow streets are lined with traditional taverns serving delicious pintxos and local wines. Some of the popular spots in Casco Viejo include Plaza Nueva, La Ribera Market, and the 7 Calles (Seven Streets) area. Indautxu: This neighborhood is home to some of the city's most popular nightclubs, such as Fever and Kafe Antzokia. It's also a great place to catch live music performances at venues like Bilborock and Stage Live. Abando: The Abando neighborhood is located near the city center and is home to several trendy bars and clubs, such as Shake and Roll, Txitxiburduntzi, and Café Antzokia. This area also has a variety of restaurants and cafes, making it a great place to spend the evening. One of the most popular venues for electronic music in Bilbao is the Sala Sonora, which hosts regular events featuring international DJs and local talent. The venue has a capacity of around 500 people and offers a top-of-the-line sound system that provides an immersive experience for music lovers. Sala Sonora is known for its commitment to the underground scene, providing a platform for up-and-coming DJs to showcase their talent. Another popular venue for electronic music in Bilbao is the Sala Stage Live. This club has a capacity of around 1,200 people and regularly hosts events featuring international DJs and live acts. Stage Live also has a rooftop terrace, providing a unique setting for party-goers to dance the night away under the stars.For those looking for a more intimate setting, the Sala Azkena is a great option. This underground club has a capacity of around 200 people and regularly hosts events featuring local DJs and live acts. The venue has a reputation for its commitment to the local music scene and its dedication to providing a unique and memorable experience for its patrons. Bilbao's rave and underground scene is not limited to just electronic music. The city has a thriving punk and metal scene, with venues such as the Sala Bilborock and the Sala Edaska regularly hosting events featuring local and international bands.

The cost of going out in Bilbao varies depending on the neighborhood and type of establishment. The prices are generally reasonable, with pintxos costing around €2-€3 each and drinks averaging around €3-€5. However, the cost can go up in some of the more upscale rooftop bars and clubs, with drinks costing upwards of €10-€15. It's always a good idea to check the menu or ask for prices before ordering.

The dress code in Bilbao is generally casual, especially in the more traditional bars and taverns. However, some of the more upscale clubs and rooftop bars may have a dress code, so it's best to check ahead. During the summer months, it's common to see people wearing shorts and sandals, but in the colder months, it's best to dress in layers and wear comfortable shoes for walking around the city.