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September Weather in Sankt Peterzell, Switzerland

Last updated: August 27, 2025

In September, the average temperature in Sankt Peterzell, Switzerland is a mild 13°C (55°F). Expect the mercury to dip as low as 1°C (34°F) at times, while it can soar to a pleasant 25°C (77°F). During this month, you'll encounter an average precipitation of 180 mm (7.1 in) spread across 16 days, accompanied by a high average humidity of 83%. Prepare for a blend of cool breezes and occasional rain as you explore this charming destination!

September Temperature in Sankt Peterzell

In September in Sankt Peterzell, the average temperature is 13°C (55°F). Maximums can reach 25°C (77°F), and minimums can be as low as 1°C (34°F). It's a great time to explore Sankt Peterzell, so pack accordingly to enjoy mild days and cool evenings!

September Weather in Sankt Peterzell: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sankt Peterzell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sankt Peterzell, September typically has an average temperature of 13°C (55°F), with highs reaching up to 25°C (77°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec293238455160626155473831
Data source: Temperature data for Sankt Peterzell 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 Sankt Peterzell

In Sankt Peterzell in September, the precipitation amount is 180 mm (7.1 in) over the course of 16 days.

September Precipitation Trends in Sankt Peterzell

The chart displays monthly precipitation patterns in Sankt Peterzell, 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 Sankt Peterzell, September typically receives around 180 mm (7.1 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec14110513411119922025127518014790173
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sankt Peterzell

In Sankt Peterzell in September humidity is 83%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, often leaving travelers feeling slightly sticky and in need of frequent breaks in the shade.

September Average Humidity in Sankt Peterzell

This chart illustrates the average monthly humidity levels in Sankt Peterzell, 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 Sankt Peterzell 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 Sankt Peterzell

In Sankt Peterzell in September, 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 Sankt Peterzell, you can refer to this Hourly UV Index in Sankt Peterzell.

Maximum UV Index Levels in Sankt Peterzell for September

The chart shows the monthly maximum UV Index (UVI) for Sankt Peterzell 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 Sankt Peterzell typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367810986532
Data source: Sankt Peterzell 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 Sankt Peterzell Compares to Other Months

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

This table compares monthly weather conditions in Sankt Peterzell, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)141 mm (5.5 inches)92%low
February Weather0°C (33°F)105 mm (4.1 inches)89%moderate
March Weather3°C (38°F)134 mm (5.3 inches)87%high
April Weather7°C (45°F)111 mm (4.4 inches)84%high
May Weather11°C (51°F)199 mm (7.8 inches)80%very high
June Weather16°C (60°F)220 mm (8.7 inches)82%very high
July Weather16°C (62°F)251 mm (9.9 inches)83%very high
August Weather16°C (62°F)275 mm (10.8 inches)80%very high
September Weather13°C (55°F)180 mm (7.1 inches)83%high
October Weather8°C (48°F)147 mm (5.8 inches)90%moderate
November Weather3°C (38°F)90 mm (3.6 inches)88%moderate
December Weather0°C (32°F)172 mm (6.8 inches)90%low

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