Early autumn · Weather & things to do
Bilbao in September
Bilbao edges cooler than August, with highs of 72°F (22°C), lows of 64°F (18°C) and about 2.1 in (53 mm) of rain.
At 86/100 for comfort (2nd of 12), it's one of the best months to visit.
- Avg high
- 72°F (22°C)
- Avg low
- 64°F (18°C)
- Rain
- 2.1 in (53 mm)
- Humidity
- 72%
- Cloud cover
- 62%
- Daylight
- ~12 h 17 min
- Comfort score
- 86/100 · Great
What September feels like
Days are warm, averaging 72°F (22°C), easy weather for being outside from morning to evening.
After dark, temperatures fall to about 64°F (18°C).
Rain is moderate at about 2.1 in (53 mm) for the month.
Plan around September
September is one of Bilbao's best months on the climate data.
- Last warm month for a while: October highs fall to 68°F.
- Last dry month before the rain picks up: October brings 3.7 in (95 mm).
- Last of the best-scoring months: by October, the score drops to 80/100.
- Comfort holds steady from August (87 → 86/100).
- September sits inside the May – Oct window our Basque Coast Food Trail route recommends.
What to pack for September
- Light, breathable clotheshighs average 72°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Bilbao in September
With conditions on your side, the picks below favor time outside.
San Juan de Gaztelugatxe
Hermitage on an islet reached by 241 steps along a stone causeway.
Why now September scores 86/100 for comfort, good conditions for being outside.
Café Bar Bilbao
Plaza Nueva bar with tiled walls and a counter of pintxos.
Why now Highs near 72°F and 2.1 in of monthly rain make this an easy outdoor pick.
La Viña del Ensanche
Old-school deli and wine bar specializing in ibérico ham and refined pintxos.
Museo de Bellas Artes de Bilbao
Fine arts museum with Spanish masters and Basque painters, next to Doña Casilda park.
Plaza Nueva
Arcaded square in the old town lined with pintxos bars.
Why now One to do outside while the weather is on your side.
Nearby in September
- San Sebastián in September~48 mi · highs 72°F, 2.5 in rain · similar daytime temperatures, about as wet
- Laguardia in September~52 mi · highs 75°F, 1.5 in rain · 1°C (2°F) warmer by day, about as wet
- Barcelona in September~291 mi · highs 81°F, 2.3 in rain · 5°C (9°F) warmer by day, about as wet
- Girona in September~306 mi · highs 76°F, 2.3 in rain · 2°C (4°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Bilbao in September: quick answers
Is September a good time to visit Bilbao?
Yes. On the climate data it's one of the best months, scoring 86/100. Expect highs of 72°F (22°C) and 2.1 in (53 mm) of rain. September is inside the May – Oct window our Basque Coast Food Trail route recommends.
How hot is Bilbao in September?
Average highs are 72°F (22°C) and average lows 64°F (18°C), making it the 3rd-warmest month by daytime highs.
Does it rain a lot in Bilbao in September?
Not much: about 2.1 in (53 mm) of rain falls across September on average, the 3rd-driest month of the year. The annual total is about 39.5 in (1003 mm).
What should I pack for Bilbao in September?
Bring light, breathable clothes (highs average 72°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Routes in season in September
- Basque Coast Food Trail May – Oct
Planning Bilbao in September?
Share this September plan with your group, poll everyone on dates and keep the packing list in one place.