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April Weather in Altenberg, Germany

Last updated: August 23, 2025

In April, the average temperature in Altenberg, Germany hovers around 8°C (46°F). Expect a wide range, with minimums dropping to -6°C (21°F) and maximums peaking at 25°C (77°F). Rainfall is moderate, with 39 mm (1.5 in) spread over about 10 days, while humidity remains relatively high at 81%.

April Temperature in Altenberg

In April in Altenberg, the average temperature is 8°C (46°F). Maximum temperatures can reach up to 25°C (77°F), while the minimum can drop as low as -6°C (21°F). This variability makes it essential for travelers to pack layers to accommodate both warm days and chilly nights.

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

The chart illustrates April temperature patterns in Altenberg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altenberg, April typically has an average temperature of 8°C (46°F), with highs reaching up to 25°C (77°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec313338465364646456483934
Data source: Temperature data for Altenberg generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Altenberg

In Altenberg in April, the precipitation amount is 39 mm (1.5 in) over a span of 10 days.

April Precipitation Trends in Altenberg

The chart displays monthly precipitation patterns in Altenberg, 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 Altenberg, April typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6054583981737511370654162
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Altenberg

In Altenberg in April humidity is 81%. With an average temperature of 8°C (46°F), this humidity feels like walking through a damp blanket, making traveling uncomfortable and leading to a persistent chill that seeps into your bones.

April Average Humidity in Altenberg

This chart illustrates the average monthly humidity levels in Altenberg, 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 Altenberg is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%87%81%71%75%74%76%81%85%88%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Altenberg

In Altenberg in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Altenberg, you can refer to this Hourly UV Index in Altenberg.

Maximum UV Index Levels in Altenberg for April

The chart shows the monthly maximum UV Index (UVI) for Altenberg 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 Altenberg typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224678876421
Data source: Altenberg 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 Altenberg Compares to Other Months

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

This table compares monthly weather conditions in Altenberg, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)60 mm (2.3 inches)90%low
February Weather0°C (33°F)54 mm (2.1 inches)89%low
March Weather3°C (38°F)58 mm (2.3 inches)87%moderate
April Weather8°C (46°F)39 mm (1.5 inches)81%high
May Weather12°C (54°F)81 mm (3.2 inches)71%high
June Weather18°C (64°F)73 mm (2.9 inches)75%very high
July Weather18°C (64°F)75 mm (3.0 inches)74%very high
August Weather18°C (65°F)113 mm (4.5 inches)76%high
September Weather13°C (56°F)70 mm (2.8 inches)81%high
October Weather9°C (49°F)65 mm (2.6 inches)85%moderate
November Weather4°C (39°F)41 mm (1.6 inches)88%low
December Weather1°C (34°F)62 mm (2.5 inches)92%low

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