Ottawa weather averages for holidays in 2017/2018

Check Ottawa weather averages before you book your next holiday in 2017/2018. Today's maximum temperature in Ottawa is expected to be 25°C, while the average maximum temperature in August is 25°C.

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Ottawa weather averages

Check out the Ottawa weather averages before you book your next holiday to Ontario. The warmest month in Ottawa is July with an average maximum temperature of 26°C. The sunniest month is July with on average 9 hours of bright sunshine per day. The months with the least number of days with some rain are March, April, July and August with 11 days.

Maximum daytime temperature (°C)

Hours of sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Days with some rainfall

More weather parameters

Metric (°C / mm)  |  Imperial (°F / inches)

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Ottawa weather today

Here is the weather in Ottawa today, Tuesday 22nd August 2017. Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 25°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 89% chance of some rain and a moderate breeze of 28 kph from the south-west.

  • 25
    °C maximum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 89
    % chance of some rain
  • <20
    mm of rainfall expected
  • 28
    kph wind from SW

5-day weather forecast

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Ottawa, Canada hurricane season

% of month affected by tropical storms
0
0
0
0
0
<1%
<1%
0
1%
<1%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Ottawa, Canada tropical storm risk chart above shows the hurricane season.

More about tropical storms

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Ottawa holiday weather averages by month

Check Ottawa holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare Ottawa weather with the USA

Below the Ottawa weather chart shows maximum daytime temperature for Ottawa, Ontario, Canada and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

Ottawa, Ontario, Canada
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more Ottawa weather >>

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