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November Weather in Ottawa, United States

Last updated: June 24, 2025

In November, the average temperature in Ottawa, United States hovers around 4°C (40°F). Expect significant variations, with minimums plunging to -14°C (6°F) and occasional highs of 25°C (77°F). During this time, precipitation typically measures 57 mm (2.2 in) over approximately 8 days, accompanied by an average humidity level of 88%.

November Temperature in Ottawa

In November in Ottawa, the average temperature is 4°C (40°F). Maximum temperatures can reach 25°C (77°F), while minimums can drop as low as -14°C (6°F). Be prepared for a wide range of temperatures when traveling during this month!

November Weather in Ottawa: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Ottawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ottawa, November typically has an average temperature of 4°C (40°F), with highs reaching up to 25°C (77°F) and lows dropping to around -14°C (6°F).
JanFebMarAprMayJunJulAugSepOctNovDec262841506373767369554034
Data source: Temperature data for Ottawa 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.

November Precipitation in Ottawa

In Ottawa in November, the precipitation amount is 57 mm (2.2 in) over the course of 8 days.

November Precipitation Trends in Ottawa

The chart displays monthly precipitation patterns in Ottawa, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Ottawa, November typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec62669311716514510187911345755
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Ottawa

In Ottawa in November, humidity is 88%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and prompting you to seek cozy indoor activities instead.

November Average Humidity in Ottawa

This chart illustrates the average monthly humidity levels in Ottawa, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Ottawa is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Ottawa

In Ottawa in November, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Ottawa for better planning.

Maximum UV Index Levels in Ottawa for November

The chart shows the monthly maximum UV Index (UVI) for Ottawa in November, 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 November, the maximum UV index in Ottawa typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Ottawa November 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 November Weather in Ottawa Compares to Other Months

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

This table compares monthly weather conditions in Ottawa, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)62 mm (2.5 inches)82%moderate
February Weather-2°C (28°F)66 mm (2.6 inches)83%moderate
March Weather5°C (41°F)93 mm (3.7 inches)84%high
April Weather10°C (50°F)117 mm (4.6 inches)85%very high
May Weather17°C (63°F)165 mm (6.5 inches)79%very high
June Weather23°C (73°F)145 mm (5.7 inches)82%very high
July Weather24°C (76°F)101 mm (4.0 inches)80%very high
August Weather23°C (74°F)87 mm (3.4 inches)81%very high
September Weather20°C (69°F)91 mm (3.6 inches)80%very high
October Weather13°C (56°F)134 mm (5.3 inches)82%high
November Weather4°C (40°F)57 mm (2.2 inches)88%moderate
December Weather1°C (34°F)55 mm (2.2 inches)84%low

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