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September Weather in Rosieres-en-Santerre, France

Last updated: August 23, 2025

In September, the average temperature in Rosieres-en-Santerre, France hovers around 16°C (61°F). You can expect temperatures to range from a cool 4°C (40°F) to a warm 32°C (90°F). With 43 mm (1.7 in) of precipitation spread over about 8 days, the air tends to be quite humid, with an average humidity of 81%.

September Temperature in Rosieres-en-Santerre

In September in Rosieres-en-Santerre, the average temperature is 16°C (61°F). The maximum can reach 32°C (90°F) and the minimum can be as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort throughout the day.

September Weather in Rosieres-en-Santerre: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rosieres-en-Santerre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosieres-en-Santerre, September typically has an average temperature of 16°C (61°F), with highs reaching up to 32°C (90°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404246515764676661544543
Data source: Temperature data for Rosieres-en-Santerre 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 Rosieres-en-Santerre

In Rosieres-en-Santerre in September, the total precipitation amount is 43 mm (1.7 in) over the course of 8 days.

September Precipitation Trends in Rosieres-en-Santerre

The chart displays monthly precipitation patterns in Rosieres-en-Santerre, 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 Rosieres-en-Santerre, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec606670336557497243786798
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rosieres-en-Santerre

In Rosieres-en-Santerre in September, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

September Average Humidity in Rosieres-en-Santerre

This chart illustrates the average monthly humidity levels in Rosieres-en-Santerre, 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 Rosieres-en-Santerre is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%83%83%80%76%81%88%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rosieres-en-Santerre

In Rosieres-en-Santerre 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 Rosieres-en-Santerre, you can refer to this Hourly UV Index in Rosieres-en-Santerre.

Maximum UV Index Levels in Rosieres-en-Santerre for September

The chart shows the monthly maximum UV Index (UVI) for Rosieres-en-Santerre 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 Rosieres-en-Santerre typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Rosieres-en-Santerre 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 Rosieres-en-Santerre Compares to Other Months

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

This table compares monthly weather conditions in Rosieres-en-Santerre, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)60 mm (2.4 inches)91%low
February Weather6°C (43°F)66 mm (2.6 inches)89%moderate
March Weather8°C (46°F)70 mm (2.8 inches)86%moderate
April Weather10°C (51°F)33 mm (1.3 inches)84%high
May Weather14°C (57°F)65 mm (2.6 inches)82%very high
June Weather18°C (65°F)57 mm (2.2 inches)82%very high
July Weather20°C (67°F)49 mm (1.9 inches)80%very high
August Weather19°C (67°F)72 mm (2.9 inches)76%very high
September Weather16°C (61°F)43 mm (1.7 inches)81%high
October Weather12°C (55°F)78 mm (3.1 inches)88%moderate
November Weather7°C (46°F)67 mm (2.6 inches)92%low
December Weather6°C (43°F)98 mm (3.9 inches)93%low

Compare Rosieres-en-Santerre's Climate with Cities Worldwide