September Weather in Picton, Canada

Last updated: June 18, 2025

In September, the average temperature in Picton, Canada is a comfortable 18°C (65°F). Expect a range between a chilly 4°C (40°F) and a warm 29°C (84°F). With an average humidity of 78%, you might also encounter some rain, as precipitation amounts to 74 mm (2.9 in) over 8 days.

September Temperature in Picton

In September in Picton, the average temperature is 18°C (65°F). Maximum temperatures can reach up to 29°C (84°F), while the minimum can drop as low as 4°C (40°F). This varied climate makes it a great time for travelers to experience the diverse outdoor activities and attractions that Picton has to offer.

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

The chart illustrates September temperature patterns in Picton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Picton, September typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec252632435565737264544031
Data source: Temperature data for Picton 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 Picton

In Picton in September, the precipitation amount is 74 mm (2.9 in) over a period of 8 days.

September Precipitation Trends in Picton

The chart displays monthly precipitation patterns in Picton, 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 Picton, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec72746511392748776741309386
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Picton

In Picton in September, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

September Average Humidity in Picton

This chart illustrates the average monthly humidity levels in Picton, 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 Picton is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Picton

In Picton 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 Picton.

Maximum UV Index Levels in Picton for September

The chart shows the monthly maximum UV Index (UVI) for Picton 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 Picton typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Picton 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 Picton Compares to Other Months

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

This table compares monthly weather conditions in Picton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)72 mm (2.8 inches)90%low
February Weather-3°C (26°F)74 mm (2.9 inches)90%moderate
March Weather0°C (33°F)65 mm (2.6 inches)87%moderate
April Weather6°C (43°F)113 mm (4.5 inches)88%very high
May Weather13°C (55°F)92 mm (3.6 inches)82%very high
June Weather18°C (66°F)73 mm (2.9 inches)79%very high
July Weather23°C (73°F)87 mm (3.4 inches)78%very high
August Weather22°C (72°F)76 mm (3.0 inches)76%very high
September Weather18°C (65°F)74 mm (2.9 inches)78%high
October Weather12°C (54°F)130 mm (5.1 inches)84%moderate
November Weather4°C (40°F)93 mm (3.7 inches)89%moderate
December Weather-1°C (31°F)86 mm (3.4 inches)86%low

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