Jaca, Spain experiences average highs of 17°C (63°F) and lows of 7°C (45°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have warmed by 1.2°C (2.2°F) across the available records.
Jaca, Spain Weather & Climate 2026
Monthly climate averages for Jaca, Spain. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Dec 
Wetter season: Jan–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6/10
Best: June, July, August, September
UV Index
5
Low
Temperature 17°C / 7°C
Feels Like 16°C / 5°C
Rainy Days 10
Rainfall 78 mm
Sunshine 10 h
Humidity 74%
Wind Speed 12 km/h
Dew Point 7°C
Snow Days 6 days
Frost Days 8 days
Hottest Month
28°C
August
Avg Low16°C
Rain6days
Coldest Month
0°C
January
Avg High8°C
Rain12days
Driest Month
6days
July
Avg High28°C
Avg Low16°C
Windiest Month
14 km/h
March (Gusts 44)
Worst Time to Visit
Consider avoiding January, February, December due to frequent rain.
Sun Position
Sunrise 06:25
Daylight 15.3h
Sunset 21:43
Live conditions—
Jaca on the map · live conditions
Jaca, Spain
- Continent
- Europe
- Country
- Spain
- City
- Jaca
- Population
- 13.4K
- Coordinates
- 42.57°, -0.55°
Seasonal Breakdown
Spring
Mar–May
Avg High 15°C
Avg Low 5°C
Rain 12 days/mo
Summer
Jun–Aug
Avg High 27°C
Avg Low 15°C
Rain 8 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 18°C
Avg Low 8°C
Rain 10 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 9°C
Avg Low 1°C
Rain 10 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 8°C / 0°C . Feb: 10°C / 1°C . Mar: 11°C / 2°C . Apr: 15°C / 5°C . May: 19°C / 8°C . Jun: 24°C / 13°C . Jul: 28°C / 16°C . Aug: 28°C / 16°C . Sep: 23°C / 12°C . Oct: 18°C / 9°C . Nov: 12°C / 4°C . Dec: 9°C / 1°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 93 mm. Feb: 72 mm. Mar: 100 mm. Apr: 90 mm. May: 80 mm. Jun: 71 mm. Jul: 32 mm. Aug: 39 mm. Sep: 63 mm. Oct: 108 mm. Nov: 102 mm. Dec: 84 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 81%. Feb: 79%. Mar: 78%. Apr: 75%. May: 72%. Jun: 67%. Jul: 60%. Aug: 59%. Sep: 69%. Oct: 76%. Nov: 83%. Dec: 84%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 12 km/h . Mar: 14 km/h . Apr: 13 km/h . May: 13 km/h . Jun: 12 km/h . Jul: 12 km/h . Aug: 12 km/h . Sep: 12 km/h . Oct: 11 km/h . Nov: 12 km/h . Dec: 11 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 8h. Mar: 9h. Apr: 11h. May: 12h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 11h. Oct: 9h. Nov: 7h. Dec: 7h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 10 days. Feb: 7 days. Mar: 10 days. Apr: 3 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 6 days. Dec: 7 days.
Climate Trends
Average highs have warmed by 1.2°C (2.2°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 30°C | Aug · 28°C |
| Coldest month | Jan 2025 · 1°C | Jan · 0°C |
| Wettest month | Mar 2025 · 147 mm | Oct · 108 mm |
| Windiest month | Mar 2025 · 15 km/h | Mar · 14 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 0°C | 5°C / -4°C | 12days (93 mm) Wet | 7h Good | 81% Humid | 2.1 Moderate | Poor | View Details |
| February | 10°C / 1°C | 7°C / -3°C | 8days (72 mm) Wet | 8.2h Good | 79% Humid | 3.2 Moderate | Poor | View Details |
| March | 11°C / 2°C | 9°C / -1°C | 13days (100 mm) Wet | 9.4h Good | 78% Humid | 4.1 Moderate | Poor | View Details |
| April | 15°C / 5°C | 13°C / 2°C | 12days (90 mm) Wet | 10.7h Excellent | 75% Muggy | 6.1 High | Fair | View Details |
| May | 19°C / 8°C | 18°C / 6°C | 12days (80 mm) Wet | 12.4h Excellent | 72% Muggy | 7 High | Good | View Details |
| June best | 24°C / 13°C | 25°C / 13°C | 11days (71 mm) Wet | 13.1h Excellent | 67% Muggy | 7.5 Very High | Excellent | View Details |
| July best | 28°C / 16°C | 29°C / 16°C | 6days (32 mm) Good | 13.4h Excellent | 60% Moderate | 7.7 Very High | Excellent | View Details |
| August best | 28°C / 16°C | 29°C / 16°C | 6days (39 mm) Good | 12.3h Excellent | 59% Moderate | 7 High | Excellent | View Details |
| September best | 23°C / 12°C | 22°C / 11°C | 8days (63 mm) Wet | 10.6h Excellent | 69% Muggy | 5.5 High | Excellent | View Details |
| October | 18°C / 9°C | 17°C / 7°C | 10days (108 mm) Wet | 8.5h Good | 76% Humid | 3.6 Moderate | Good | View Details |
| November | 12°C / 4°C | 9°C / 1°C | 12days (102 mm) Wet | 7.1h Good | 83% Humid | 2.4 Moderate | Fair | View Details |
| December | 9°C / 1°C | 7°C / -2°C | 11days (84 mm) Wet | 6.6h Fair | 84% Humid | 1.9 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Jaca are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Jaca, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Jaca is August, with average daytime highs of 28°C (83°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Jaca is January, with average overnight lows of 0°C (31°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Jaca is October, averaging 108mm of precipitation across 10 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Jaca runs through March, January, April, May, with the heaviest rainfall in March. Based on 10-year averages for Jaca.
Jaca receives approximately 119 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Jaca.
The least favorable months to visit Jaca are January, February, December, primarily due to frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Jaca is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Jaca is 74%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Jaca receives snow. Months with snowfall average 6 snow days and 15 cm (6 in) of accumulation, with about 8 frost days during winter.
Average wind speeds in Jaca are 12 km/h (7 mph). The windiest month is March with peak winds reaching 14 km/h (8 mph) (gusts up to 44 km/h / 27 mph).
Jaca averages 6 clear-sky days per month with overall cloud cover around 52%. The clearest skies occur in August.
The annual average dew point in Jaca is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Jaca has a Hot-Summer Mediterranean climate, classified as Csa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Jaca ranges from 5°C (41°F) to 16°C (61°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Jaca. It earns a climate score of 8.6/10 with Excellent.
For June in Jaca, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 24°C (76°F) and 11 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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