Ottawa weather in July 2025

Q: How hot is it in Ottawa in July?

Daytime temperatures usually reach 26°C in Ottawa in July with low heat and humidity, falling to 15°C at night.

Q: How sunny is it in Ottawa in July?

There are normally 9 hours of bright sunshine each day in Ottawa in July - that's 59% of daylight hours.

Q: Does it rain in Ottawa in July?

There are usually 11 days with some rain in Ottawa in July and the average monthly rainfall is 88mm.

Expect daytime maximum temperatures of 79°F in Ottawa, Ontario in July based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 3.5 inches of rainfall in the month.

79
79°F max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
59
59°F min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
3.5
3.5 inches of monthly rainfall
7
7 (High) UV index

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The July weather guide for Ontario (Ottawa) 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) | Imperial (°F)

More about Ontario

How hot is it in Ottawa in July?

Daytime temperatures usually reach 79°F in Ottawa in July with low heat and humidity, falling to 59°F at night.

How sunny is it in Ottawa in July?

There are normally 9 hours of bright sunshine each day in Ottawa in July - that's 59% of daylight hours.

Does it rain in Ottawa in July?

There are usually 11 days with some rain in Ottawa in July and the average monthly rainfall is 3.5 inches.

Ottawa July sunrise & sunset times

Browse the sunrise and sunset times for Ottawa in July 2025. Select a month to view Ottawa sunrise and sunset times for the next 12 months.

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

Date	Sunrise times	Sunset times
Tuesday, 1st July 2025	04:19	19:55
Wednesday, 16th July 2025	04:30	19:47
Thursday, 31st July 2025	04:46	19:31

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Ontario - quick facts
Flight time^✝	8 hours
Time difference	UK -5 to -6 hours
Language(s)	English, French
Currency	Canadian Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Destination Ontario