Climate ▸Forecast ▸December ▸January ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Illerich Weather and Climate: A Comprehensive Guide

Illerich experiences great temperature shifts. The city's weather can transition from warm days to cold weather. It receives mid-range precipitation levels. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

The climate in Illerich is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 24°C in July, the warmest time of the year, to a chilly 5°C during cooler months like January.

At night, temperatures typically drop to an average of around -1°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Illerich receives mid-range precipitation levels, with 794 mm annually. Year-round, Illerich has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 75 mm, and the driest month, April, with 56 mm, is minimal.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Illerich. While July receives considerable daily sunshine with up to 7.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.4 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Bonn, Germany (59 KM, 37 Miles).

Daily hours of sunshine

Data from: Bonn, Germany (59 KM, 37 Miles).

Forecast for Illerich

Thu   Dec 26
6°C | 1°C
E 4 m/s
almost clear and no rain

almost clear and no rain

Fri   Dec 27
6°C | 0°C
NE 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Sat   Dec 28
5°C | -1°C
SW 3 m/s
clear and no rain

clear and no rain

The best time of year to visit Illerich in Germany

During the months of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Illerich?
    July has an average maximum temperature of 24°C and is the warmest month of the year.
  • Which is the coldest month in Illerich?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Illerich?
    December tops the wettest month list with 75 mm of rainfall.
  • Which is the driest month in Illerich?
    April is the driest month with 56 mm of precipitation.
  • Which is the sunniest month in Illerich?
    July is the sunniest month with an average of 210 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.