Ottawa
Canada
Long-term weather forecast
Long-term weather forecast

April 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
April in Ottawa, Canada, is a fresh spring month, with temperature in the range of an average low of 1°C (33.8°F) and an average high of 11.6°C (52.9°F).

Temperature

In Ottawa, the average high-temperature soars, from a cold 2.5°C (36.5°F) in March, to a fresh 11.6°C (52.9°F). The average low-temperature, is 1°C (33.8°F).

Humidity

In Ottawa, the average relative humidity is 50.2%.

Rainfall

In April, the rain falls for 10.9 days. Throughout April, 63mm (2.5") of precipitation is accumulated. In Ottawa, during the entire year, the rain falls for 118.4 days and collects up to 758.4mm (29.9") of precipitation.

Snowfall

January through May, October through December are months with snowfall.

Daylight

In Ottawa, the average length of the day is 13.6h.

Sunshine

In Ottawa, the average sunshine is 6.3h.

UV index

The average daily maximum UV index in Ottawa, Canada, is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in April in Ottawa?

The average high-temperature, in April, in Ottawa, is 11.6°C (52.9°F), while the average low-temperature is 1°C (33.8°F).

What is the average humidity in April in Ottawa?

The average relative humidity in April is 50.2%.

How many days does it rain in April in Ottawa?

In Ottawa, Canada, during April, the rain falls for 10.9 days and regularly aggregates up to 63mm (2.5") of precipitation.

How much does it snow in Ottawa in April?

In Ottawa, Canada, during April, snow falls for 3.5 days and regularly aggregates up to 113mm (4.4") of snow.

What is the average length of the day in April in Ottawa?

In April, the average length of the day in Ottawa, Canada, is 13.6h.

How long on average sun shines in April in Ottawa?

In April, the average sunshine in Ottawa, Canada, is 6.3h.

How high is the UV index in April in Ottawa?

The average daily maximum UV index in April in Ottawa is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in April - Ottawa, Canada
  • Average high temperature in April: 11.6°C

The warmest month (with the highest average high temperature) is July (26.5°C).
The month with the lowest average high temperature is January (-5.8°C).

  • Average low temperature in April: 1°C

The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is January (-14.8°C).

Average humidity in April - Ottawa, Canada
  • Average humidity in April: 50.2%

The month with the highest relative humidity is December (72.2%).
The month with the lowest relative humidity is May (49.9%).

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

The wettest month (with the highest rainfall) is June (92.8mm).
The driest month (with the lowest rainfall) is February (18.7mm).

Average rainfall days in April - Ottawa, Canada
  • Average rainfall days in April: 10.9 days

The month with the highest number of rainy days is October (13.7 days).
The month with the lowest number of rainy days is February (3.9 days).

Average snowfall in April - Ottawa, Canada
  • Average snowfall in April: 113mm

The month with the highest snowfall is January (539mm).
Months with the lowest snowfall are June, July, August and September (0mm).

Average snowfall days in April - Ottawa, Canada
  • Average snowfall days in April: 3.5 days

The month with the highest number of snowfall days is January (16.1 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in April / Average sunshine in April - Ottawa, Canada
  • Average daylight in April: 13.6h

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

  • Average sunshine in April: 6.3h

The month with most sunshine is July (Average sunshine: 9.7h).
The month with least sunshine is December (Average sunshine: 2.2h).

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

The month with the highest UV index is June (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).