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September Weather in Schiers, Switzerland

Last updated: August 27, 2025

In September, the average temperature in Schiers, Switzerland hovers around 10°C (49°F). During this time, temperatures can vary significantly, with a minimum of -6°C (21°F) and a maximum soaring to 22°C (72°F). Additionally, you can expect a precipitation amount of 151 mm (6.0 in) spread across about 16 days, contributing to a high average humidity level of 83%. Stay prepared for a mix of weather as you explore!

September Temperature in Schiers

In September in Schiers, the average temperature is 10°C (49°F). Maximum temperatures can reach 22°C (72°F), while minimums can drop as low as -6°C (21°F). Be sure to pack layers to accommodate the wide temperature range!

September Weather in Schiers: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Schiers, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Schiers, September typically has an average temperature of 10°C (49°F), with highs reaching up to 22°C (72°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec212732384555565649423224
Data source: Temperature data for Schiers 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.

September Precipitation in Schiers

In Schiers in September, the precipitation amount is 151 mm (6.0 in) distributed over 16 days.

September Precipitation Trends in Schiers

The chart displays monthly precipitation patterns in Schiers, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Schiers, September typically receives around 151 mm (6.0 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec1348912310118917517420315214696159
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Schiers

In Schiers in September humidity is 83%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill enveloping you, making outdoor activities feel more uncomfortable and potentially dampening your travel experience.

September Average Humidity in Schiers

This chart illustrates the average monthly humidity levels in Schiers, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Schiers is approximately 83%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Schiers

In Schiers in September, 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 Schiers.

Maximum UV Index Levels in Schiers for September

The chart shows the monthly maximum UV Index (UVI) for Schiers in September, 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 September, the maximum UV index in Schiers typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24678101087532
Data source: Schiers September 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 September Weather in Schiers Compares to Other Months

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

This table compares monthly weather conditions in Schiers, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)134 mm (5.3 inches)92%low
February Weather-3°C (27°F)89 mm (3.5 inches)89%moderate
March Weather0°C (32°F)123 mm (4.8 inches)87%high
April Weather3°C (38°F)101 mm (4.0 inches)84%high
May Weather7°C (45°F)189 mm (7.4 inches)80%very high
June Weather13°C (55°F)175 mm (6.9 inches)82%very high
July Weather13°C (56°F)174 mm (6.8 inches)83%very high
August Weather13°C (56°F)203 mm (8.0 inches)80%very high
September Weather10°C (49°F)151 mm (6.0 inches)83%high
October Weather6°C (43°F)146 mm (5.8 inches)90%moderate
November Weather0°C (33°F)96 mm (3.8 inches)88%moderate
December Weather-5°C (24°F)159 mm (6.3 inches)90%low

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