Month guide · Jaca, Spain

Jaca in August: weather and what to expect

August is the last month of the year with average highs above 25°C in Jaca. August highs in Jaca are now 2.1°C warmer than in 1991-2000. In August, Jaca averages highs of 27°C and lows of 15°C, with about 10 rainy days and 54 mm of rain. Crowds in Aragon are at their peak.

Based on 1991-2020 climate data · Updated 2 November 2026 · Sources

Average high Town-level27°CLow 15°C
Rainy days Town-level1054 mm in total
UV index Modelled8Very high at noon on a clear day
Crowds RegionalPeakAragon as a whole

Is August a good time to visit?

Good for

No verdicts for Jaca in August yet. They only use climate values that are precise enough to judge with.

Not ideal for

Nothing stands out as a weaker fit.

Daily highs through August

Town-level · ERA5-Land 1991-2020
Usual range (8 in 10 years)Typical high

Highs fall about 3°C over the month. Nights below 10°C in about 1 in 2.

August in detail

Town-level · ERA5-Land
MeasureJulyAugustSeptember
Average high27°C27°C22°C
Average low15°C15°C11°C
Rainy days (at least 1 mm)91010
Total rainfall45 mm54 mm64 mm
Daylight (mid-month)15 h 02 min13 h 58 min12 h 34 min

Crowds, holidays and daylight

Visitor level RegionalPeakNights booked through online platforms in Aragon in August 2025: the busiest month of the year.

Public holidays in August 2027

  • 16 Aug Monday following Assumption DayAragon

Local (municipal) holidays are not included.

Daylight mid-month Exact13 h 58 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Jaca
Arquillos, Andalusia35°C2545 km
Blanca, Murcia34°C3493 km
Santo Tomé, Andalusia34°C3549 km
Ceutí, Murcia34°C2503 km
Alguazas, Murcia34°C2506 km

The nearest towns with a warmer August. Distances are in a straight line.

How August is changing

Town-level · ERA5-Land

August highs are 2.1°C warmer than in 1991-2000, and August rainfall is down about 20% (2016-2025 against 1991-2000). Days above 30°C in August went from 5.2 to 11 a year on average.

Questions about Jaca in August

How warm is Jaca in August?

Average highs are 27°C and lows 15°C. July averages 27°C and September 22°C.

Does it rain much in Jaca in August?

About 10 days have at least 1 mm of rain, with 54 mm in total over the month.

Is Jaca busy in August?

In August 2025, nights booked through online platforms in Aragon were the busiest month of the year, which we count as peak. The figure is for the whole region and leaves out hotels.

How long are the days in Jaca in August?

About 13 h 58 min from sunrise to sunset in the middle of the month.

Sources

Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology