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September Weather in Er, France

Last updated: August 23, 2025

In September, the average temperature in Er, France is a comfortable 11°C (52°F). Daytime can bring warmth with a maximum of 23°C (73°F), while nights might drop to a chilly -3°C (28°F). Visitors can expect about 93 mm (3.7 in) of precipitation over 15 days, contributing to an average humidity of 73%. It's a month of varied weather, perfect for exploring the region's unique charm!

September Temperature in Er

Visiting Er in September promises a diverse climate, perfect for those who enjoy both mild and brisk temperatures.

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

The chart illustrates September temperature patterns in Er, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Er, September typically has an average temperature of 11°C (52°F), with highs reaching up to 23°C (73°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec283234384654595952453430
Data source: Temperature data for Er 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 Er

In Er in September, the precipitation amount is 93 mm (3.7 in) over the course of 15 days.

September Precipitation Trends in Er

The chart displays monthly precipitation patterns in Er, 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 Er, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec8761861051311391009593989081
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Er

In Er in September humidity is 73%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that creeps into your bones, making outdoor exploration tricky but invigorating, as the cool air and moisture combine to create a refreshing yet slightly uncomfortable atmosphere for traveling.

September Average Humidity in Er

This chart illustrates the average monthly humidity levels in Er, 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 Er is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%77%75%74%72%70%73%82%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Er

In Er in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Er.

Maximum UV Index Levels in Er for September

The chart shows the monthly maximum UV Index (UVI) for Er 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 Er typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111198632
Data source: Er 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 Er Compares to Other Months

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

This table compares monthly weather conditions in Er, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)87 mm (3.4 inches)87%moderate
February Weather0°C (33°F)61 mm (2.4 inches)83%moderate
March Weather1°C (35°F)86 mm (3.4 inches)80%high
April Weather3°C (38°F)105 mm (4.1 inches)77%very high
May Weather8°C (46°F)131 mm (5.2 inches)75%very high
June Weather12°C (55°F)139 mm (5.5 inches)74%extreme
July Weather15°C (59°F)100 mm (3.9 inches)72%extreme
August Weather15°C (59°F)95 mm (3.7 inches)70%very high
September Weather11°C (52°F)93 mm (3.7 inches)73%very high
October Weather7°C (45°F)98 mm (3.9 inches)82%high
November Weather1°C (34°F)90 mm (3.5 inches)87%moderate
December Weather-1°C (31°F)81 mm (3.2 inches)88%low

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