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April Weather in Sissach, Switzerland

Last updated: August 27, 2025

In Sissach, Switzerland, the average temperature in April hovers around 10°C (50°F). Expect a minimum that can dip to -4°C (26°F), while the maximum could reach a pleasant 26°C (80°F). During this month, the area sees about 59 mm (2.3 in) of precipitation spread over 10 days, with an average humidity level of 84%.

April Temperature in Sissach

In April in Sissach, the average temperature is 10°C (50°F). The maximum can reach 26°C (80°F), while the minimum can drop as low as -4°C (26°F). This fluctuation in temperatures makes it essential for travelers to pack layers to accommodate both warm and chilly weather.

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

The chart illustrates April temperature patterns in Sissach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sissach, April typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (80°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec353943505766686860514138
Data source: Temperature data for Sissach 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 Sissach

In Sissach in April, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

April Precipitation Trends in Sissach

The chart displays monthly precipitation patterns in Sissach, 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 Sissach, April typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec89758759126120122115699073124
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Sissach

In Sissach in April, humidity is 84%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less comfortable and prompting travelers to seek refuge in cozy, warm cafes or indoor attractions.

April Average Humidity in Sissach

This chart illustrates the average monthly humidity levels in Sissach, 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 Sissach is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Sissach

In Sissach 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 Sissach, you can refer to this Hourly UV Index in Sissach.

Maximum UV Index Levels in Sissach for April

The chart shows the monthly maximum UV Index (UVI) for Sissach 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 Sissach typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Sissach 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 Sissach Compares to Other Months

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

This table compares monthly weather conditions in Sissach, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)89 mm (3.5 inches)92%low
February Weather4°C (39°F)75 mm (2.9 inches)89%moderate
March Weather6°C (44°F)87 mm (3.4 inches)87%moderate
April Weather10°C (50°F)59 mm (2.3 inches)84%high
May Weather14°C (57°F)126 mm (5.0 inches)80%very high
June Weather19°C (66°F)120 mm (4.7 inches)82%very high
July Weather20°C (69°F)122 mm (4.8 inches)83%very high
August Weather20°C (68°F)115 mm (4.5 inches)80%very high
September Weather16°C (61°F)69 mm (2.7 inches)83%high
October Weather11°C (52°F)89 mm (3.5 inches)90%moderate
November Weather5°C (42°F)73 mm (2.9 inches)88%low
December Weather3°C (38°F)124 mm (4.9 inches)90%low

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