January in Jaca — off-season conditions
Hardest · 4.8/10January averages 3°C (37°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Rainfall runs 59 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 9.2 hours of daylight.
It scores 4.8/10 here, 12th of 12 months, against 10/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
Flexible dates? July scores 5.2 points higher here — enough to change the trip.
February in Jaca: mixed conditions, plan around the weather
Trade-offs · 5.9/10February averages 5°C (40°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 50 mm, so plan one flexible day in three; you still get about 5 days with 6+ hours of sunshine and 10.3 hours of daylight.
It scores 5.9/10 here, 8th of 12 months, against 10/10 in the destination's best month.
Plan for 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 4.1 points higher here — enough to change the trip.
March in Jaca — middling scores, decent value
Trade-offs · 5.8/10Expect 7°C (44°F) in March. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 86 mm of rain this month — a flexible day or two helps — with about 10 days with 6+ hours of sunshine and 11.7 hours of daylight to work around it.
That is 5.8/10 on the same scale — 9th of 12 months, versus 10/10 for the best month here.
Budget for 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 packable rain layer.
If your dates are flexible, July is materially better in Jaca — 4.2 points higher on the same scale.
April in Jaca — reliably good (5th best month)
Good · 8.3/10April averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 49 mm, so plan one flexible day in three; you still get about 22 days with 6+ hours of sunshine and 13.2 hours of daylight.
It scores 8.3/10 here, 5th of 12 months, against 10/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Flexible dates? July scores 1.7 points higher here — enough to change the trip.
May in Jaca — one of the year's strongest windows (3rd)
Best window · 9/10Temperatures hover around 13°C (56°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 52 mm of rain this month — a flexible day or two helps — with about 29 days with 6+ hours of sunshine and 14.4 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Jaca at 9/10 (3rd of 12), just behind July at 10/10.
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.
June in Jaca — one of the year's strongest windows (4th)
Best window · 8.8/10June 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.
Rainfall runs 78 mm, so plan one flexible day in three; you still get about 29 days with 6+ hours of sunshine and 15.1 hours of daylight.
A 8.8/10 puts this among the year's best months in Jaca (4th of 12); only July scores higher, at 10/10.
Figure on 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.
July: the best month of the year in Jaca
Best window · 10/10July averages 22°C (71°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Expect 28 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 14.8 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Jaca at 10/10 — the reference point every other month on this page is measured against.
Plan for 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 in Jaca — one of the year's strongest windows (2nd)
Best window · 9.4/10At 22°C (71°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 56 mm of rain this month — a flexible day or two helps — with about 30 days with 6+ hours of sunshine and 13.7 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Jaca at 9.4/10 (2nd of 12), just behind July at 10/10.
Expect 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 Jaca: strong conditions, 6th of 12
Good · 7.7/10Temperatures hover around 16°C (61°F) — the kind of month where neither heat nor cold forces the schedule.
103 mm of rain signals a properly wet month, with only about 16 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 7.7/10 on the same scale — 6th of 12 months, versus 10/10 for the best month here.
Budget for mid-season pricing, and 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.
If your dates are flexible, July is materially better in Jaca — 2.3 points higher on the same scale.
October in Jaca — middling scores, decent value
Trade-offs · 6.6/10October averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 92 mm, so plan one flexible day in three; you still get about 5 days with 6+ hours of sunshine and 10.8 hours of daylight.
It scores 6.6/10 here, 7th of 12 months, against 10/10 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 packable rain layer.
Flexible dates? July scores 3.4 points higher here — enough to change the trip.
November in Jaca — middling scores, decent value
Trade-offs · 5/10November averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 84 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 9.5 hours of daylight.
It scores 5/10 here, 10th of 12 months, against 10/10 in the destination's best month.
Plan for 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 5 points higher here — enough to change the trip.
December in Jaca — the hardest end of the year
Hardest · 4.9/10Expect 5°C (40°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 59 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 8.9 hours of daylight to work around it.
That is 4.9/10 on the same scale — 11th of 12 months, versus 10/10 for the best month here.
Budget for 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 packable rain layer.
If your dates are flexible, July is materially better in Jaca — 5.1 points higher on the same scale.
