nomadseason

April Weather in Ilmenau, Germany

Last updated: August 23, 2025

In April, the average temperature in Ilmenau, Germany hovers around 8°C (46°F). Expect a wide range, with minimums dipping to -10°C (15°F) and maximums soaring up to 26°C (79°F). While you enjoy the mild weather, be prepared for 46 mm (1.8 in) of precipitation spread over 10 days and a high average humidity of 83%.

April Temperature in Ilmenau

In April in Ilmenau, the average temperature is 8°C (46°F). The maximum can reach 26°C (79°F), while the minimum can drop as low as -10°C (15°F). Be prepared for a wide range of temperatures when traveling during this time.

April Weather in Ilmenau: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Ilmenau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilmenau, April typically has an average temperature of 8°C (46°F), with highs reaching up to 26°C (79°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec323438465363646456493935
Data source: Temperature data for Ilmenau 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.

April Precipitation in Ilmenau

In Ilmenau in April, the precipitation amount is 46 mm (1.8 in) over the course of 10 days.

April Precipitation Trends in Ilmenau

The chart displays monthly precipitation patterns in Ilmenau, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Ilmenau, April typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec635468469891839956634671
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Ilmenau

In Ilmenau in April, humidity is 83%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making even short outings feel quite uncomfortable and prompting travelers to bundle up and seek shelter more frequently.

April Average Humidity in Ilmenau

This chart illustrates the average monthly humidity levels in Ilmenau, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Ilmenau is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%88%83%75%79%79%79%83%87%90%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ilmenau

In Ilmenau in April, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Ilmenau.

Maximum UV Index Levels in Ilmenau for April

The chart shows the monthly maximum UV Index (UVI) for Ilmenau in April, 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 April, the maximum UV index in Ilmenau typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578875421
Data source: Ilmenau April 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 April Weather in Ilmenau Compares to Other Months

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

This table compares monthly weather conditions in Ilmenau, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)63 mm (2.5 inches)91%low
February Weather1°C (34°F)54 mm (2.1 inches)90%low
March Weather3°C (38°F)68 mm (2.7 inches)88%moderate
April Weather8°C (46°F)46 mm (1.8 inches)83%moderate
May Weather12°C (53°F)98 mm (3.8 inches)75%high
June Weather17°C (63°F)91 mm (3.6 inches)79%very high
July Weather18°C (64°F)83 mm (3.3 inches)79%very high
August Weather18°C (65°F)99 mm (3.9 inches)79%high
September Weather14°C (57°F)56 mm (2.2 inches)83%moderate
October Weather10°C (49°F)63 mm (2.5 inches)87%moderate
November Weather4°C (40°F)46 mm (1.8 inches)90%low
December Weather2°C (35°F)71 mm (2.8 inches)92%low

Compare Ilmenau's Climate with Cities Worldwide