Is Ottawa hot in July?
Days are typically warm at 26.8°C, while nights average 16°C.
Canada · 1991–2020 normal
Typical July weather in Ottawa: 26.8°C by day, 16°C at night, 92 mm of rain over 9.7 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, July scores 75 out of 100 (June leads the year at 81). Daylight is calculated as 15 h 20 from latitude 45.41°.
July at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 26.8°C, while nights average 16°C.
The measured monthly average is 92 mm across about 10 wet days.
There are about 15 h 20 between sunrise and sunset at mid-month, calculated from the place latitude.
July ranks 3 of 12 in our weather comparison; June ranks first.
The evidence behind this page
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The weather comparison for Ottawa is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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