Ottawa weather

Usually in December
- -4
- -11
- 3
Weather by month
Now Today
- -3
- 2
5-day forecast

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Recommended for Ontario

The weather guide for Ontario (Ottawa) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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

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

More about Canada

Which is the hottest month in Ottawa?

The hottest time of year in Ottawa is normally July. Expect maximum daytime temperatures to reach 26°C with low heat and humidity.

Which month has the most rain in Ottawa?

In terms of rainfall, July is usually the wettest month in Ottawa with 88mm on average. There are normally 11 days in July with some rain.

When is it sunniest in Ottawa?

The sunniest time of year in Ottawa is normally July with bright sunshine on average for 59% of daylight hours; that's 9 hours of sunshine per day.

What is the flight time to Ontario from the UK?

The flight time to Ontario from the UK is typically 8 hours.

What is the time difference between Ontario and the UK?

The time difference between Ontario and the UK is GMT-5 to GMT-6 hours.

What is the main language spoken in Ontario?

The main languages spoken in Ontario are English and French.

Learn a language for Ontario with Busuu^*, Lingoda^* and Mondly^*.

What is the currency in Ontario?

The currency in Ontario is the Canadian Dollar (CAD).

Send money to Ontario with XE Money Transfers^*.

Which plugs are used in Ontario?

Ontario uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in Ontario?

They drive on the right side of the road in Ontario.

Do you need a visa for Ontario?

Yes, UK passport holders do need a visa to enter Ontario.

Check Canada visa requirements for all passport holders with VisaHQ^* and iVisa.com^*.

Compare Ottawa weather with the USA

Below the Ottawa weather chart shows average maximum daytime temperature for Ottawa, Ontario, Canada and the USA (Washington).

Maximum daytime temperature (°C)

Ottawa, Ontario, Canada

USA (Washington)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

-6

-4