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Ottawa weather in August 2019
- 2525°C max day temperature
- 1111 days with some rainfall
- 1414°C min night temperature
- 1414 hours of daylight per day
- 0No heat & humidity
- 8686 mm of monthly rainfall
- 77 (High) UV index
The August weather guide for Ottawa, Ontario shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Guide to Ottawa weather in August
The average maximum daytime temperature in Ottawa in August is a warm 25°C (77°F). The average night-time temperature is usually a comfortable 14°C (57°F). There are usually 8 hours of bright sunshine each day, which represents 55% of the 14 hours of daylight.
Expect 86mm (3.4 inches) of rainfall across the whole of August with 11 days with some rain falling. Maximum UV levels will be high (7 UV index) at midday when the skies are clear.
Ottawa sunrise & sunset times for August 2019
Browse the sunrise & sunset times for Ottawa in August 2019. Select a month to view Ottawa sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Thursday, 1st August 2019||05:47||20:31|
|Friday, 16th August 2019||06:04||20:09|
|Saturday, 31st August 2019||06:23||19:43|
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Where's hot in Ontario in August?
Below are average maximum temperatures at popular destinations in Ontario in August. Select a destination to see more weather parameters.
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