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April Weather in Flawil, Switzerland

Last updated: August 27, 2025

In April, the average temperature in Flawil, Switzerland hovers around 9°C (49°F), with a minimum dip to -6°C (22°F) and a pleasant maximum of 24°C (76°F). Expect approximately 79 mm (3.1 in) of precipitation over 11 days, contributing to the notably high average humidity of 84%.

April Temperature in Flawil

In April in Flawil, the average temperature is 9°C (49°F), with maximums reaching 24°C (76°F) and minimums dropping as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates April temperature patterns in Flawil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Flawil, April typically has an average temperature of 9°C (49°F), with highs reaching up to 24°C (76°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec333642495565666659514136
Data source: Temperature data for Flawil 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 Flawil

In Flawil in April, the total precipitation amount is 79 mm (3.1 in), falling over the course of 11 days.

April Precipitation Trends in Flawil

The chart displays monthly precipitation patterns in Flawil, 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 Flawil, April typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec106851007914716915919512811972135
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Flawil

In Flawil in April, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

April Average Humidity in Flawil

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

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

Maximum UV Index Levels in Flawil for April

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

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

This table compares monthly weather conditions in Flawil, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)106 mm (4.2 inches)92%low
February Weather2°C (37°F)85 mm (3.3 inches)89%moderate
March Weather5°C (42°F)100 mm (3.9 inches)87%moderate
April Weather9°C (49°F)79 mm (3.1 inches)84%high
May Weather13°C (56°F)147 mm (5.8 inches)80%very high
June Weather18°C (65°F)168 mm (6.6 inches)82%very high
July Weather19°C (67°F)159 mm (6.3 inches)83%very high
August Weather19°C (66°F)194 mm (7.7 inches)80%very high
September Weather15°C (59°F)128 mm (5.0 inches)83%high
October Weather10°C (51°F)119 mm (4.7 inches)90%moderate
November Weather5°C (42°F)72 mm (2.8 inches)88%low
December Weather2°C (36°F)135 mm (5.3 inches)90%low

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