July weather forecast and climate
Ottawa, Canada

A view of The Parliament Hill from the Ottawa River in Ottawa, Canada
A view of The Parliament Hill from the Ottawa River in Ottawa, Canada
July in Ottawa, Canada, is a moderately hot summer month, with temperature in the range of an average low of 14.5°C (58.1°F) and an average high of 25.3°C (77.5°F).

Temperature

With an average high-temperature of 25.3°C (77.5°F) and an average low-temperature of 14.5°C (58.1°F), July is the warmest month.

Humidity

In July, the average relative humidity in Ottawa is 79%.

Rainfall

In July, in Ottawa, the rain falls for 17.1 days. Throughout July, 61mm (2.4") of precipitation is accumulated. In Ottawa, during the entire year, the rain falls for 149.6 days and collects up to 772mm (30.39") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Ottawa, the average length of the day is 15.3h.

Sunshine

With an average of 10.2h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In July, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the warmest month in Ottawa?

July is the warmest month in Ottawa, Canada, with an average high-temperature of 25.3°C (77.5°F) and an average low-temperature of 14.5°C (58.1°F).

What is the temperature in July in Ottawa?

In Ottawa, Canada, in July, the average high-temperature is 25.3°C (77.5°F), and the average low-temperature is 14.5°C (58.1°F).

What is the average humidity in July in Ottawa?

In July, the average relative humidity in Ottawa is 79%.

How much does it rain in Ottawa in July?

In Ottawa, during July, the rain falls for 17.1 days and regularly aggregates up to 61mm (2.4") of precipitation.

When it does not snow in Ottawa?

In Ottawa snow does not fall in June through September.

How many hours of daylight does Ottawa have in July?

The average length of the day in July in Ottawa, Canada, is 15.3h.

What month has the most sunshine in Ottawa?

The month with the most sunshine in Ottawa, Canada, is July, with an average of 10.2h of sunshine.

How long on average sun shines in July in Ottawa?

The average sunshine in July in Ottawa is 10.2h.

What are the months with the highest UV index in Ottawa?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Ottawa, Canada.

How high is the UV index in July in Ottawa?

In Ottawa, Canada, the average daily maximum UV index in July is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.
Average temperature in July - Ottawa, Canada
  • Average high temperature in July: 25.3°C

The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.3°C).

  • Average low temperature in July: 14.5°C

The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-14.5°C).

Average humidity in July - Ottawa, Canada
  • Average humidity in July: 79%

Months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).

Average rainfall in July - Ottawa, Canada
  • Average rainfall in July: 61mm

The wettest month (with the highest rainfall) is October (78mm).
The driest month (with the least rainfall) is September (54mm).

Average rainfall days in July - Ottawa, Canada
  • Average rainfall days in July: 17.1 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in July - Ottawa, Canada
  • Average snowfall in July: 0mm

The month with the highest snowfall is January (321mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in July - Ottawa, Canada
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (19.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July / Average sunshine in July - Ottawa, Canada
  • Average daylight in July: 15.3h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in July: 10.2h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 2.8h).

Average UV index in July - Ottawa, Canada
  • Average UV index in July: 5

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 1).