nomadseason

December Weather in Illar, Spain

Last updated: August 27, 2025

In December, the average temperature in Illar, Spain is a brisk 9°C (48°F). Expect a range of temperatures, with a minimum of -3°C (28°F) and a maximum of 22°C (71°F). Additionally, anticipate 19 mm (0.7 in) of precipitation spread over 3 days, and enjoy the fresh air with an average humidity level of 79%.

December Temperature in Illar

In December in Illar, the average temperature is 9°C (48°F). Maximums can reach 22°C (71°F), while minimums can dip as low as -3°C (28°F). Be prepared for a wide range of temperatures, ensuring you pack layers for your travel.

December Weather in Illar: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Illar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Illar, December typically has an average temperature of 9°C (48°F), with highs reaching up to 22°C (71°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec454951556472787870615248
Data source: Temperature data for Illar generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Illar

In Illar in December, the precipitation amount is 19 mm (0.7 in) over a period of 3 days.

December Precipitation Trends in Illar

The chart displays monthly precipitation patterns in Illar, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Illar, December typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec31215963391152141423419
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Illar

In Illar in December humidity is 79%. With an average temperature of 9°C (48°F), this humidity feels like a chilly mist wrapping around you, making outdoor activities brisk yet invigorating, but it can also leave you feeling damp and slightly chilled if you're not dressed appropriately for the conditions.

December Average Humidity in Illar

This chart illustrates the average monthly humidity levels in Illar, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Illar is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%71%66%58%55%50%55%54%61%70%76%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Illar

In Illar in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Illar, you can check the information here.

Maximum UV Index Levels in Illar for December

The chart shows the monthly maximum UV Index (UVI) for Illar in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Illar typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710111211109753
Data source: Illar December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Illar Compares to Other Months

Weather in Illar varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Illar, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Illar, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)31 mm (1.2 inches)76%moderate
February Weather10°C (49°F)21 mm (0.8 inches)71%moderate
March Weather11°C (51°F)59 mm (2.3 inches)66%high
April Weather13°C (55°F)63 mm (2.5 inches)58%very high
May Weather18°C (64°F)39 mm (1.5 inches)55%extreme
June Weather22°C (72°F)11 mm (0.4 inches)50%extreme
July Weather26°C (78°F)5 mm (0.2 inches)55%extreme
August Weather25°C (78°F)21 mm (0.8 inches)54%very high
September Weather21°C (70°F)41 mm (1.6 inches)61%very high
October Weather16°C (61°F)42 mm (1.7 inches)70%high
November Weather11°C (52°F)34 mm (1.3 inches)76%moderate
December Weather9°C (48°F)19 mm (0.7 inches)79%moderate

Compare Illar's Climate with Cities Worldwide