September Weather in Breil, Switzerland

Last updated: August 27, 2025

In September, the average temperature in Breil, Switzerland hovers around 8°C (47°F). Expect a wide range, with minimum temperatures dipping to -10°C (15°F) and highs reaching 21°C (70°F). The weather can be quite wet, with 161 mm (6.4 in) of precipitation over 16 days, contributing to a high average humidity of 83%.

September Temperature in Breil

In September in Breil, the average temperature is 8°C (47°F). Maximums can reach 21°C (70°F), and minimums can drop as low as -10°C (15°F). It's a great time to pack layers and enjoy a mix of cool and mild weather while exploring the area.

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

The chart illustrates September temperature patterns in Breil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Breil, September typically has an average temperature of 8°C (47°F), with highs reaching up to 21°C (70°F) and lows dropping to around -10°C (15°F).

Data source: Temperature data for Breil generated using information from the Copernicus Climate Change Service.

September Precipitation in Breil

In Breil in September, the precipitation amount is 161 mm (6.4 in) spread over 16 days.

September Precipitation Trends in Breil

The chart displays monthly precipitation patterns in Breil, 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 Breil, September typically receives around 161 mm (6.4 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Breil

In Breil in September humidity is 83%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making travel uncomfortable and leaving you yearning for warmth and dryness as you explore.

September Average Humidity in Breil

This chart illustrates the average monthly humidity levels in Breil, 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 Breil is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Breil

In Breil 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 Breil.

Maximum UV Index Levels in Breil for September

The chart shows the monthly maximum UV Index (UVI) for Breil 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 Breil typically reaches 7, which falls under the high exposure category.

Data source: Breil 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 Breil Compares to Other Months

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

This table compares monthly weather conditions in Breil, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	122 mm (4.8 inches)	92%	low
February Weather	-5°C (24°F)	83 mm (3.3 inches)	89%	moderate
March Weather	-2°C (28°F)	118 mm (4.6 inches)	87%	high
April Weather	1°C (34°F)	100 mm (3.9 inches)	84%	very high
May Weather	5°C (42°F)	153 mm (6.0 inches)	80%	very high
June Weather	11°C (52°F)	179 mm (7.1 inches)	82%	very high
July Weather	12°C (54°F)	199 mm (7.8 inches)	83%	very high
August Weather	12°C (54°F)	261 mm (10.3 inches)	80%	very high
September Weather	8°C (47°F)	161 mm (6.4 inches)	83%	high
October Weather	4°C (40°F)	166 mm (6.5 inches)	90%	moderate
November Weather	-2°C (28°F)	114 mm (4.5 inches)	88%	moderate
December Weather	-6°C (21°F)	162 mm (6.4 inches)	90%	low