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September Weather in Rettel, France

Last updated: August 23, 2025

In September, the average temperature in Rettel, France is a pleasant 15°C (59°F). You can expect temperatures to vary from a cool 4°C (39°F) at their lowest to a warm 32°C (89°F) at their peak. With an average precipitation of 61 mm (2.4 in) spread across 9 days, and an average humidity of 83%, don't forget to pack your umbrella and stay hydrated!

September Temperature in Rettel

In September in Rettel, the average temperature is 15°C (59°F). The maximum can reach 32°C (89°F), while the minimum can drop to as low as 4°C (39°F). Be prepared for a range of temperatures to make the most of your travel experience!

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

The chart illustrates September temperature patterns in Rettel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rettel, September typically has an average temperature of 15°C (59°F), with highs reaching up to 32°C (89°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec363943505665676659524339
Data source: Temperature data for Rettel 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 Rettel

In Rettel in September, the precipitation amount is 61 mm (2.4 in) spread over 9 days.

September Precipitation Trends in Rettel

The chart displays monthly precipitation patterns in Rettel, 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 Rettel, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7073754070707059617670118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rettel

In Rettel in September humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.

September Average Humidity in Rettel

This chart illustrates the average monthly humidity levels in Rettel, 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 Rettel is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rettel

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

Maximum UV Index Levels in Rettel for September

The chart shows the monthly maximum UV Index (UVI) for Rettel 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 Rettel typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689876421
Data source: Rettel 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 Rettel Compares to Other Months

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

This table compares monthly weather conditions in Rettel, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)70 mm (2.8 inches)91%low
February Weather4°C (40°F)73 mm (2.9 inches)90%moderate
March Weather6°C (44°F)75 mm (3.0 inches)88%moderate
April Weather10°C (50°F)40 mm (1.6 inches)84%high
May Weather13°C (56°F)70 mm (2.8 inches)81%very high
June Weather18°C (65°F)70 mm (2.7 inches)82%very high
July Weather19°C (67°F)70 mm (2.8 inches)82%very high
August Weather19°C (67°F)59 mm (2.3 inches)80%high
September Weather15°C (59°F)61 mm (2.4 inches)83%high
October Weather11°C (52°F)76 mm (3.0 inches)89%moderate
November Weather6°C (43°F)70 mm (2.7 inches)91%low
December Weather4°C (40°F)118 mm (4.6 inches)93%low

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