Ottawa weather and climate in 2024
Ottawa weather and climate in 2024
Day
-6 °C
Night
-15 °C
Precipitation
60 mm
in month
Rainy days
13 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
73 %
Day
-6 °C
Night
-15 °C
Precipitation
60 mm
in month
Rainy days
13 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
73 %
Overview: Ottawa
Travel information
Weather charts for Ottawa
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.
Find more destinations like this
Activities in Ottawa
Destinations with similar weather to Ottawa
Other destinations in Ontario - Canada
Closest cities for Ottawa
Weather overview for Ottawa
Weather overview
Ottawa (Canada) in general has a cold continental climate. The day temperatures range from -6 °C (22 °F) in January to 27 °C (80 °F) in July. The highest night temperatures could be experienced in July with 16 °C (60 °F), the lowest in January with -15 °C (6 °F). The driest month is August with just 10 days of rain, on the contrary, the month when it rains the most is December with 13 days of rain.
January weather
The minimum of the day temperature can be noticed, the value of this measure is -6 °C (22 °F) in Ottawa, and the minimum of the night temperature can be noticed as well in January. The number of rainy days descent's start could be observed, while the rainfall amount continues to descent, its value is 60 mm (2.35 in). The beginning of the rise of the number of sun hours (without clouds) could be noticed in January.
February weather
The number of rainy days descents similarly to the previous month, its value is 11 days in Ottawa, while the rainfall amount reaches its minimum in this month. The day temperature rise's start could be observed, the value of this measure is -3 °C (26 °F), and the night temperature rise's start could be observed as well, the value of this measure is -13 °C (9 °F). The number of sun hours (without clouds) rises similarly to the previous month, its value is 4 hours.
March weather
The number of rainy days continues to descent, its value is 10 days in Ottawa. The night temperature rises similarly to the previous month, with its value being -7 °C (19 °F), and the day temperature continues to rise as well, with its value of 2 °C (36 °F). The number of sun hours (without clouds) continues to rise, with its value of 5 hours.
April weather
The day temperature continues to rise, its value is 12 °C (53 °F) in Ottawa, and the night temperature continues to rise too, with its value being 1 °C (34 °F). The rainfall amount rise's start could be observed in this month. The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 6 hours. The minimum of the humidity can be noticed in April. The maximum of the wind speed is observable in April.
May weather
The day temperature continues to rise, with its value of 19 °C (66 °F) in Ottawa, and the night temperature rises similarly to the previous month too, with its value being 8 °C (46 °F). The tourist season is at its beginning. The rise of the rainfall amount can be observed, with its value of 83 mm (3.26 in). The rise of the number of sun hours (without clouds) can be observed, with its value of 7 hours.
June weather
The tourist season is taking place in Ottawa. The day temperature continues to rise, with its value of 24 °C (76 °F), and the night temperature continues to rise too, with its value being 13 °C (56 °F). The rainfall amount is on its maximum, its value is 94 mm (3.68 in), while the number of rainy days rise's start could be observed, its value is 12 days. The rise of the number of sun hours (without clouds) can be observed, its value is 8 hours.
July weather
The tourist season is taking place this month in Ottawa. The number of rainy days descent's start could be observed, with its value of 11 days. The maximum of the day temperature can be noticed, with its value being 27 °C (80 °F), and the night temperature is on its maximum too in this month. The minimum of the wind speed can be noticed in this month. The number of sun hours (without clouds) is on its maximum.
August weather
The tourist season is taking place in Ottawa. The beginning of the descent of the day temperature could be noticed, its value is 26 °C (78 °F), and the night temperature starts to descent as well, its value is 15 °C (58 °F). The rainfall amount starts to descent, with its value of 86 mm (3.37 in), while the minimum of the number of rainy days can be noticed, with its value of 10 days. The number of sun hours (without clouds) starts to descent, the value of this measure is 8 hours.
September weather
The day temperature descents similarly to the previous month, with its value being 21 °C (70 °F) in Ottawa, and the night temperature descents similarly to the previous month as well, the value of this measure is 11 °C (51 °F). The tourist season is taking place this month. The number of rainy days starts to rise in this month. The number of sun hours (without clouds) descents similarly to the previous month, with its value of 6 hours.
October weather
The descent of the day temperature can be observed, its value is 13 °C (56 °F) in Ottawa, and the descent of the night temperature can be observed as well, with its value of 4 °C (40 °F). The beginning of the rise of the rainfall amount could be noticed, with its value being 90 mm (3.53 in). The descent of the number of sun hours (without clouds) can be observed, with its value being 4 hours.
November weather
The descent of the day temperature can be observed, with its value being 6 °C (43 °F) in Ottawa, and the descent of the night temperature can be observed too, the value of this measure is -1 °C (30 °F). The rainfall amount starts to descent, with its value of 83 mm (3.26 in), on the contrary the beginning of the rise of the number of rainy days could be noticed, with its value of 13 days. The number of sun hours (without clouds) continues to descent, with its value of 3 hours. The humidity reaches its maximum, with its value being 78 %.
December weather
The maximum of the number of rainy days can be noticed, its value is 13 days in Ottawa, while the descent of the rainfall amount can be observed, with its value being 77 mm (3.02 in). The night temperature descents similarly to the previous month, the value of this measure is -9 °C (15 °F), and the day temperature continues to descent as well, with its value being -2 °C (28 °F). The minimum of the number of sun hours (without clouds) is observable, the value of this measure is 2 hours. The minimum of the day length can be noticed, with its value of 9 hours.
FAQs
What is the night temperature in Ottawa in April?
The average night temperature in April in Ottawa is 1 °C (34 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
Is May part of the wet season in Ottawa?
No, there is no wet season in May in Ottawa - you can expect 11 days of rain during the month.
How many rainy days can I expect in June in Ottawa?
There are 12 days, which are rainy in Ottawa in June, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.8 days of the week, or in general - 40 % days.
Is it hot in July in Ottawa?
In Ottawa in July, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What temperature can I expect during the day in August in Ottawa?
In August in Ottawa, the average daily temperatures will be 26 °C (78 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
Is September a good month to visit Ottawa?
September is a good month to visit Ottawa. There are some people, who may feel a slight chill at 21 °C (70 °F), but others will feel perfectly fine. The temperature of 11 °C (51 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
How many sunny hours can I expect in Ottawa in October?
In Ottawa in October, you can expect around 4 hours of sunshine.