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October Weather in Richelieu, Canada

Last updated: June 18, 2025

In October, the average temperature in Richelieu, Canada hovers around 10°C (50°F). Visitors can expect a minimum of -4°C (25°F) and a maximum of 27°C (80°F), making for a diverse climate. During this time, the area receives approximately 141 mm (5.5 in) of precipitation over 14 days, leading to an average humidity of 86%—perfect for those who enjoy a moist atmosphere!

October Temperature in Richelieu

In October, in Richelieu, the average temperature is 10°C (50°F), with maximums reaching 27°C (80°F) and minimums dropping as low as -4°C (25°F). This means travelers should be prepared for a wide range of weather conditions, making layers essential for comfort during their visit.

October Weather in Richelieu: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Richelieu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richelieu, October typically has an average temperature of 10°C (50°F), with highs reaching up to 27°C (80°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec171929435766727061503424
Data source: Temperature data for Richelieu 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.

October Precipitation in Richelieu

In Richelieu in October, the precipitation amount reaches 141 mm (5.5 in) over a span of 14 days.

October Precipitation Trends in Richelieu

The chart displays monthly precipitation patterns in Richelieu, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Richelieu, October typically receives around 141 mm (5.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec858184119981051031137014111787
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Richelieu

In Richelieu in October humidity is 86%. With an average temperature of 10°C (50°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities uncomfortable and sticky, which can dampen the spirit of travel.

October Average Humidity in Richelieu

This chart illustrates the average monthly humidity levels in Richelieu, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Richelieu is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Richelieu

In Richelieu in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Richelieu.

Maximum UV Index Levels in Richelieu for October

The chart shows the monthly maximum UV Index (UVI) for Richelieu in October, 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 October, the maximum UV index in Richelieu typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899887532
Data source: Richelieu October 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 October Weather in Richelieu Compares to Other Months

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

This table compares monthly weather conditions in Richelieu, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)85 mm (3.4 inches)93%low
February Weather-7°C (20°F)81 mm (3.2 inches)92%moderate
March Weather-2°C (29°F)84 mm (3.3 inches)86%moderate
April Weather6°C (43°F)119 mm (4.7 inches)85%very high
May Weather14°C (57°F)98 mm (3.8 inches)80%very high
June Weather19°C (66°F)105 mm (4.1 inches)74%very high
July Weather22°C (72°F)103 mm (4.1 inches)76%very high
August Weather21°C (70°F)113 mm (4.5 inches)75%very high
September Weather16°C (61°F)70 mm (2.8 inches)78%high
October Weather10°C (50°F)141 mm (5.5 inches)86%moderate
November Weather1°C (35°F)117 mm (4.6 inches)88%moderate
December Weather-5°C (24°F)87 mm (3.4 inches)89%low

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