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September Weather in Winchester, Canada

Last updated: June 18, 2025

In September, the average temperature in Winchester, Canada is a pleasant 16°C (62°F). However, be prepared for a range, as temperatures can dip to a brisk 0°C (32°F) or soar to a warm 32°C (90°F). Expect about 70 mm (2.8 in) of precipitation spread over 9 days, contributing to an average humidity of 72%. Whether you're planning outdoor adventures or cozy indoor activities, September in Winchester has something to offer everyone!

September Temperature in Winchester

In September in Winchester, the average temperature is 16°C (62°F). Maximums can reach 32°C (90°F), while minimums can drop as low as 0°C (32°F). Be prepared for a wide range of temperatures during your travels!

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

The chart illustrates September temperature patterns in Winchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winchester, September typically has an average temperature of 16°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec192130435766716961503525
Data source: Temperature data for Winchester 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 Winchester

In Winchester in September, the total precipitation amount is 70 mm (2.8 in) spread over 9 days.

September Precipitation Trends in Winchester

The chart displays monthly precipitation patterns in Winchester, 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 Winchester, September typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec80818711711097119997013710184
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Winchester

In Winchester in September, humidity is 72%. With an average temperature of 16°C (62°F), this humidity feels like a warm blanket wrapped around you, making it slightly uncomfortable for traveling as you might find yourself sweating more than usual, especially during outdoor activities.

September Average Humidity in Winchester

This chart illustrates the average monthly humidity levels in Winchester, 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 Winchester is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Winchester

In Winchester in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Winchester.

Maximum UV Index Levels in Winchester for September

The chart shows the monthly maximum UV Index (UVI) for Winchester 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 Winchester typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Winchester 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 Winchester Compares to Other Months

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

This table compares monthly weather conditions in Winchester, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)80 mm (3.1 inches)93%low
February Weather-6°C (21°F)81 mm (3.2 inches)93%moderate
March Weather-1°C (30°F)87 mm (3.4 inches)86%moderate
April Weather6°C (44°F)117 mm (4.6 inches)82%very high
May Weather14°C (57°F)110 mm (4.3 inches)75%very high
June Weather19°C (66°F)97 mm (3.8 inches)68%very high
July Weather22°C (72°F)119 mm (4.7 inches)69%very high
August Weather21°C (69°F)99 mm (3.9 inches)67%very high
September Weather16°C (62°F)70 mm (2.8 inches)72%high
October Weather10°C (50°F)137 mm (5.4 inches)83%moderate
November Weather2°C (35°F)101 mm (4.0 inches)88%moderate
December Weather-4°C (26°F)84 mm (3.3 inches)89%low

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