Ottawa weather in October (Ontario, Canada)

What can you expect from the weather in Ottawa during October? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In October, Ottawa generally has moderate temperatures and high rainfall. Daytime temperatures hover around 14°C, while nights can cool down to about 4°C.

Ottawa in October usually receives high rainfall, averaging around 102 mm for the month. When we look at the climate data from the last 30 years, we can expect around 12 days of rain.

The area enjoys a balanced 138 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

If your ideal day consists of dry skies and moderate temperatures May, August and September generally stand out with the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Ottawa climate page with graphs.

 

Ottawa, monthly averages in October

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 14°C  
Chance of RainChance of Rain 41%  
PrecipitationPrecipitation 102 mm  
Rainy daysRainy days 12 days  
HumidityHumidity 61%  
SunshineSunshine 138 hours  
Percentage SunshinePercentage Sunshine 41%  

Where to go in Canada in October

Find out more about the weather in Canada in October and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Ottawa in October?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in October.

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Ottawa.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.