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September Weather in Rochefort, Switzerland

Last updated: August 27, 2025

In September, the average temperature in Rochefort, Switzerland hovers around 14°C (58°F). Expect a refreshing range where minimum temperatures can dip to 3°C (37°F), while maximums can climb to 27°C (82°F). During this month, anticipate approximately 90 mm (3.6 in) of precipitation spread across 13 days, contributing to an average humidity of 81%.

September Temperature in Rochefort

In September in Rochefort, the average temperature is 14°C (58°F). Maximums can reach 27°C (82°F) and minimums can be as low as 3°C (37°F). It's a great time to explore Rochefort, as you can enjoy mild weather with comfortable days and cool nights.

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

The chart illustrates September temperature patterns in Rochefort, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rochefort, September typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (82°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323640475362656457494035
Data source: Temperature data for Rochefort 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 Rochefort

In Rochefort in September, the precipitation amount is 90 mm (3.6 in), occurring over the course of 13 days.

September Precipitation Trends in Rochefort

The chart displays monthly precipitation patterns in Rochefort, 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 Rochefort, September typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec12193126691661501461369011399175
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rochefort

In Rochefort in September, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

September Average Humidity in Rochefort

This chart illustrates the average monthly humidity levels in Rochefort, 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 Rochefort is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rochefort

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

Maximum UV Index Levels in Rochefort for September

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

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

This table compares monthly weather conditions in Rochefort, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)121 mm (4.8 inches)91%low
February Weather2°C (36°F)93 mm (3.6 inches)89%moderate
March Weather5°C (41°F)126 mm (5.0 inches)87%moderate
April Weather9°C (48°F)69 mm (2.7 inches)84%high
May Weather12°C (54°F)166 mm (6.5 inches)80%very high
June Weather17°C (63°F)150 mm (5.9 inches)82%very high
July Weather18°C (65°F)146 mm (5.8 inches)82%very high
August Weather18°C (64°F)136 mm (5.3 inches)77%very high
September Weather14°C (58°F)90 mm (3.6 inches)81%high
October Weather10°C (49°F)113 mm (4.5 inches)89%moderate
November Weather4°C (40°F)99 mm (3.9 inches)89%low
December Weather2°C (35°F)175 mm (6.9 inches)91%low

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