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April Weather in Jaun, Switzerland

Last updated: August 27, 2025

In April, the average temperature in Jaun, Switzerland hovers around 5°C (41°F), with extremes ranging from a brisk -17°C (2°F) to a pleasant 20°C (69°F). Expect 89 mm (3.5 in) of precipitation spread over 12 days, contributing to an average humidity of 84%. Whether you’re bundling up or soaking in the mild afternoons, this month promises a unique atmospheric experience!

April Temperature in Jaun

In April in Jaun, the average temperature is 5°C (41°F). The maximum can reach 20°C (69°F) and the minimum can be as low as -17°C (2°F). It's essential to pack layers and prepare for a wide range of weather conditions when traveling during this time.

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

The chart illustrates April temperature patterns in Jaun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaun, April typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (69°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec242934414857595952443426
Data source: Temperature data for Jaun 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 Jaun

In Jaun in April, the precipitation amount is 89 mm (3.5 in) during 12 days of rainfall.

April Precipitation Trends in Jaun

The chart displays monthly precipitation patterns in Jaun, 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 Jaun, April typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec15011814989205181200180117135109226
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Jaun

In Jaun in April humidity is 84%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through the cold, heavy air that clings to your skin.

April Average Humidity in Jaun

This chart illustrates the average monthly humidity levels in Jaun, 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 Jaun is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Jaun

In Jaun in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Jaun.

Maximum UV Index Levels in Jaun for April

The chart shows the monthly maximum UV Index (UVI) for Jaun 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 Jaun typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: Jaun 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 Jaun Compares to Other Months

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

This table compares monthly weather conditions in Jaun, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)150 mm (5.9 inches)91%low
February Weather-1°C (30°F)117 mm (4.6 inches)89%moderate
March Weather1°C (34°F)149 mm (5.9 inches)87%high
April Weather5°C (41°F)89 mm (3.5 inches)84%very high
May Weather9°C (48°F)205 mm (8.1 inches)80%very high
June Weather14°C (57°F)181 mm (7.1 inches)82%very high
July Weather15°C (60°F)200 mm (7.9 inches)82%very high
August Weather15°C (59°F)180 mm (7.1 inches)77%very high
September Weather11°C (52°F)117 mm (4.6 inches)81%high
October Weather7°C (44°F)135 mm (5.3 inches)89%moderate
November Weather1°C (34°F)109 mm (4.3 inches)89%moderate
December Weather-3°C (26°F)226 mm (8.9 inches)91%low

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