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April Weather in Vionnaz, Switzerland

Last updated: August 27, 2025

In April, the average temperature in Vionnaz, Switzerland is a crisp 5°C (41°F), with a range that can dip as low as -16°C (4°F) and peak at a pleasant 20°C (68°F). Visitors should be prepared for a fair amount of rain, as 90 mm (3.5 in) of precipitation typically falls over the course of 13 days. Additionally, the air maintains a high average humidity of 84%, lending to a distinct atmosphere that characterizes this time of year.

April Temperature in Vionnaz

In April in Vionnaz, the average temperature is 5°C (41°F), with maximums reaching 20°C (68°F) and minimums dropping as low as -16°C (4°F). Be prepared for a wide range of temperatures when planning your travels!

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

The chart illustrates April temperature patterns in Vionnaz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vionnaz, April typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (68°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec212833414756595851443324
Data source: Temperature data for Vionnaz 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 Vionnaz

In Vionnaz in April, the precipitation amount is 90 mm (3.5 in) over the course of 13 days.

April Precipitation Trends in Vionnaz

The chart displays monthly precipitation patterns in Vionnaz, 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 Vionnaz, April typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec13811514290211211207189120127105228
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Vionnaz

In Vionnaz 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 Vionnaz

This chart illustrates the average monthly humidity levels in Vionnaz, 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 Vionnaz 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 Vionnaz

In Vionnaz in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Vionnaz.

Maximum UV Index Levels in Vionnaz for April

The chart shows the monthly maximum UV Index (UVI) for Vionnaz 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 Vionnaz typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467810997532
Data source: Vionnaz 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 Vionnaz Compares to Other Months

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

This table compares monthly weather conditions in Vionnaz, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)138 mm (5.4 inches)91%low
February Weather-2°C (29°F)115 mm (4.5 inches)89%moderate
March Weather1°C (34°F)142 mm (5.6 inches)87%high
April Weather5°C (41°F)90 mm (3.5 inches)84%high
May Weather8°C (47°F)211 mm (8.3 inches)80%very high
June Weather13°C (56°F)211 mm (8.3 inches)82%very high
July Weather15°C (59°F)206 mm (8.1 inches)82%very high
August Weather14°C (58°F)189 mm (7.4 inches)77%very high
September Weather11°C (52°F)120 mm (4.7 inches)81%high
October Weather7°C (44°F)127 mm (5.0 inches)89%moderate
November Weather1°C (33°F)105 mm (4.1 inches)89%moderate
December Weather-4°C (24°F)228 mm (9.0 inches)91%low

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