Climate of Ottawa
Ottawa has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Ottawa is 10° degrees and there is about 636 mm of rain in a year. It is dry for 148 days a year with an average humidity of 83% and an UV-index of 3.
Climate averages for the whole year
- Day: the average daily temperature during the day is between -7°C and 25°C
- Night:the average nighttime temperature is between -15°C and 14°C
- Rain: it rains 145 days and there is a total of approximately 636 mm rainfall
- Snow: it snows an average of 82 days per year
- Sun hours: throughout the year there are 2387 sun hours
Maximum temperature: | between -7°C and 25°C |
Warmest month: | 25°C in July |
Coldest month: | -7°C in January |
Night temperature: | between -15°C and 14°C |
Dry days: | 138 days |
Days with rain: | 145 days |
Days with snow: | 82 days |
Total rain sum: | 636 mm |
Hours of sunshine: | 2387 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Ottawa.
Precipitation graph
This graph shows the average amount of rainfall per month for Ottawa.
Climate table of Ottawa
In this climate table you can see at a glance what the average weather per month is for Ottawa. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Ottawa might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | -7 | -5 | 1 | 9 | 18 | 22 | 25 | 24 | 20 | 12 | 5 | -3 |
Night temp. (°C) | -15 | -13 | -7 | 1 | 7 | 11 | 14 | 14 | 10 | 5 | -2 | -8 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 53 | 49 | 46 | 53 | 53 | 52 | 54 | 56 | 46 | 63 | 50 | 61 |
Days with rain | 6 | 6 | 10 | 14 | 16 | 15 | 16 | 15 | 13 | 15 | 11 | 8 |
Days with snow | 19 | 19 | 14 | 5 | - | - | - | - | - | 1 | 7 | 17 |
Dry days | 6 | 3 | 7 | 11 | 15 | 15 | 15 | 16 | 17 | 15 | 12 | 6 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 3 | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 9 | 5 | 5 | 3 |
Wind force (Bft) | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
UV-index | 1 | 1 | 1 | 3 | 4 | 5 | 5 | 5 | 3 | 2 | 1 | 1 |
Best time to visit Ottawa
The best time to visit Ottawa in Canada is from May through September. In this period you have a pleasant temperature and little precipitation. The highest average temperature in Ottawa is 25°C in July and the lowest is -7°C in January.
Climate of Ottawa by month
What is the average climate in a given month for Ottawa? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Ottawa weather experiences
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