January in Bilbao — workable with trade-offs
Trade-offs · 5.2/10January averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 148 mm this is a genuinely wet month: about 17 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 5.2/10 here, 12th of 12 months, against 9.6/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
Flexible dates? July scores 4.4 points higher here — enough to change the trip.
February in Bilbao — workable with trade-offs
Trade-offs · 6.5/10February averages 10°C (49°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 90 mm, so plan one flexible day in three; you still get about 17 days with 6+ hours of sunshine and 10.5 hours of daylight.
It scores 6.5/10 here, 9th of 12 months, against 9.6/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Flexible dates? July scores 3.1 points higher here — enough to change the trip.
March in Bilbao: strong conditions, 7th of 12
Good · 7.6/10Temperatures hover around 12°C (54°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 94 mm of rain this month — a flexible day or two helps — with about 22 days with 6+ hours of sunshine and 12 hours of daylight to work around it.
That is 7.6/10 on the same scale — 7th of 12 months, versus 9.6/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, July is materially better in Bilbao — 2 points higher on the same scale.
April in Bilbao: strong conditions, 6th of 12
Good · 7.8/10April averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 90 mm, so plan one flexible day in three; you still get about 23 days with 6+ hours of sunshine and 13.4 hours of daylight.
It scores 7.8/10 here, 6th of 12 months, against 9.6/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Flexible dates? July scores 1.8 points higher here — enough to change the trip.
May ranks 4th of 12 for Bilbao — one of the best windows
Best window · 8.5/10Temperatures hover around 16°C (60°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 73 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 14.7 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Bilbao at 8.5/10 (4th of 12), just behind July at 9.6/10.
Budget for mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
June ranks 3rd of 12 for Bilbao — one of the best windows
Best window · 8.7/10June averages 19°C (67°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 63 mm, so plan one flexible day in three; you still get about 23 days with 6+ hours of sunshine and 15.3 hours of daylight.
A 8.7/10 puts this among the year's best months in Bilbao (3rd of 12); only July scores higher, at 9.6/10.
Plan for mid-season pricing, with crowds are moderate.
Pack light clothing, a hat and real sun protection, a packable rain layer.
July in Bilbao — the year's strongest window
Best window · 9.6/10July averages 21°C (70°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Expect 25 mm of rain — occasional showers rather than washed-out days — alongside about 27 days with 6+ hours of sunshine and 15 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Bilbao at 9.6/10 — the reference point every other month on this page is measured against.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection.
August is one of the strongest months in Bilbao (2nd)
Best window · 9/10At 22°C (71°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 54 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 13.9 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Bilbao at 9/10 (2nd of 12), just behind July at 9.6/10.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection, a packable rain layer.
September in Bilbao — reliably good (5th best month)
Good · 7.9/10At 19°C (66°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
105 mm of rain makes this a wet month here, though with about 25 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.9/10 on the same scale — 5th of 12 months, versus 9.6/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Bilbao — 1.7 points higher on the same scale.
October in Bilbao — reliably good (8th best month)
Good · 7.4/10October averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 117 mm — wet for this destination — but about 20 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.4/10 here, 8th of 12 months, against 9.6/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Flexible dates? July scores 2.2 points higher here — enough to change the trip.
November in Bilbao — workable with trade-offs
Trade-offs · 6/10November averages 14°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 156 mm this is a genuinely wet month: about 16 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 6/10 here, 10th of 12 months, against 9.6/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Flexible dates? July scores 3.6 points higher here — enough to change the trip.
December in Bilbao: mixed conditions, plan around the weather
Trade-offs · 5.6/10Expect 11°C (51°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
125 mm of rain signals a properly wet month, with only about 13 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5.6/10 on the same scale — 11th of 12 months, versus 9.6/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Bilbao — 4 points higher on the same scale.
