June 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
The first month of the summer, June, is a pleasant month in Ottawa, Canada, with average temperature ranging between max 21.6°C (70.9°F) and min 11.3°C (52.3°F).

Temperature

In Ottawa, the average high-temperature in June marginally rises, from a comfortable 17.7°C (63.9°F) in May, to an agreeable 21.6°C (70.9°F). In June, the average low-temperature is 11.3°C (52.3°F).

Humidity

In Ottawa, Canada, the average relative humidity in June is 80%.

Rainfall

In Ottawa, in June, it is raining for 15.8 days, with typically 63mm (2.48") of accumulated precipitation. In Ottawa, during the entire year, the rain falls for 149.6 days and collects up to 772mm (30.39") of precipitation.

Snowfall

In Ottawa snow does not fall through September.

Daylight

June has the longest days of the year, with an average of 15.6h of daylight.

Sunshine

The average sunshine in Ottawa is 9.2h.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index in Ottawa. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in June transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in June in Ottawa?

In June, the average high-temperature is 21.6°C (70.9°F), and the average low-temperature is 11.3°C (52.3°F).

What is the average humidity in June in Ottawa?

The average relative humidity in June is 80%.

How much does it rain in Ottawa in June?

In Ottawa, Canada, in June, during 15.8 rainfall days, 63mm (2.48") of precipitation is typically accumulated.

Does it snow in Ottawa in June?

In June, in Ottawa, it doesn't snow. May is the latest month when it typically snows.

When it does not snow in Ottawa?

In Ottawa snow does not fall in June through September.

When are the longest days in Ottawa?

With an average of 15.6h of daylight, June has the longest days of the year.

How many hours of daylight does Ottawa have in June?

In June, the average length of the day in Ottawa, Canada, is 15.6h.

How many hours of sunshine does Ottawa have in June?

In Ottawa, Canada, the average sunshine in June is 9.2h.

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

Months with the highest UV index are June through August, with an average maximum UV index of 5.

What is the UV index reading in June in Ottawa?

The average daily maximum UV index in June is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in June - Ottawa, Canada
  • Average high temperature in June: 21.6°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 June: 11.3°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 June - Ottawa, Canada
  • Average humidity in June: 80%

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

Average rainfall in June - Ottawa, Canada
  • Average rainfall in June: 63mm

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

Average rainfall days in June - Ottawa, Canada
  • Average rainfall days in June: 15.8 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 June - Ottawa, Canada
  • Average snowfall in June: 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 June - Ottawa, Canada
  • Average snowfall days in June: 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 June / Average sunshine in June - Ottawa, Canada
  • Average daylight in June: 15.6h

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 June: 9.2h

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 June - Ottawa, Canada
  • Average UV index in June: 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).