Best year time to visit Illaso

General weather information about Illaso

Average annual temperature is 12.6 °C

Absolute maximum temperature: 33.8 °C

Absolute minimum temperature: -4.0 °C

Number of sunny days: 115 days

Number of rainy days: 250 days

Look at detailed online map of Illaso

* Weather data for Illaso Spain is based on climate observations for 2026 year

Illaso air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.416.723.023.627.931.325.933.830.331.019.416.5
Average daytime temperature (°C)8.810.514.417.017.021.021.122.722.419.913.811.3
Average temperature (°C)6.05.310.112.013.016.917.118.217.415.810.77.6
Average night temperature (°C)3.21.26.37.59.213.213.314.613.412.18.14.4
Absolute minimum temperature (°C)-2.4-3.8-3.90.84.810.09.48.98.17.14.3-4.0

Illaso monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.415.013.912.511.09.79.0
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)4.87.68.49.610.510.110.99.610.06.55.24.3
Precipitation (mm)3445963681131976788160194223102
Sunny days101811136667712811
Rainy days211020172524252423192220
Snow days000000000000

Best time to visit Illaso:

The best time to visit Illaso during the most sunny months:

  • May — 10.5(h)
  • July — 10.9(h)

Months with the longest average daylight duration in Illaso:

  • June — 15.4(h)

The largest precipitation sum in Illaso is at

  • January — 344(mm)
  • June — 197(mm)
  • October — 194(mm)
  • November — 223(mm)