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August Weather in Osny, France

Last updated: August 23, 2025

In August, the average temperature in Osny, France is a pleasant 19°C (67°F). However, be prepared for a range, as temperatures can dip as low as 7°C (45°F) and soar up to 37°C (99°F). With an average humidity of 68%, you might feel a bit of stickiness in the air. Expect about 58 mm (2.3 in) of precipitation over 10 days, so it’s wise to bring an umbrella!

August Temperature in Osny

In August in Osny, the average temperature is 19°C (67°F). Maximum temperatures can reach 37°C (99°F), while minimums can drop to as low as 7°C (45°F). Travelers should be prepared for a wide range of temperatures during their visit.

August Weather in Osny: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Osny, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osny, August typically has an average temperature of 19°C (67°F), with highs reaching up to 37°C (99°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec404346525765686761554643
Data source: Temperature data for Osny 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.

August Precipitation in Osny

In Osny in August, the total precipitation amount is 58 mm (2.3 in), measured over a span of 10 days.

August Precipitation Trends in Osny

The chart displays monthly precipitation patterns in Osny, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Osny, August typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec5467763673794758417765101
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Osny

In Osny in August, humidity is 68%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket, making travel pleasant yet slightly muggy, which can be refreshing while exploring but may require occasional breaks to stay comfortable.

August Average Humidity in Osny

This chart illustrates the average monthly humidity levels in Osny, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Osny is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Osny

In Osny in August, 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 Osny.

Maximum UV Index Levels in Osny for August

The chart shows the monthly maximum UV Index (UVI) for Osny in August, 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 August, the maximum UV index in Osny typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Osny August 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 August Weather in Osny Compares to Other Months

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

This table compares monthly weather conditions in Osny, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)54 mm (2.1 inches)91%low
February Weather6°C (43°F)67 mm (2.6 inches)89%moderate
March Weather8°C (47°F)76 mm (3.0 inches)85%moderate
April Weather11°C (52°F)36 mm (1.4 inches)84%high
May Weather14°C (57°F)73 mm (2.9 inches)82%very high
June Weather18°C (65°F)79 mm (3.1 inches)80%very high
July Weather20°C (68°F)47 mm (1.8 inches)73%very high
August Weather19°C (67°F)58 mm (2.3 inches)68%very high
September Weather16°C (62°F)41 mm (1.6 inches)76%high
October Weather13°C (55°F)77 mm (3.0 inches)88%moderate
November Weather8°C (46°F)65 mm (2.6 inches)92%low
December Weather6°C (43°F)101 mm (4.0 inches)93%low

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