-4 to 26°C
temperature
2488 hours
sunshine per day
367 mm
rain
200 days
dry
118 days
rain
47 days
snow

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 12° degrees and there is about 365 mm of rain in a year. It is dry for 187 days a year with an average humidity of 81% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -4°C and 26°C
  • Night:the average nighttime temperature is between -11°C and 17°C
  • Rain: it rains 118 days and there is a total of approximately 367 mm rainfall
  • Snow: it snows an average of 47 days per year
  • Sun hours: throughout the year there are 2488 sun hours
Maximum temperature: between -4°C and 26°C
Warmest month: 26°C in July
Coldest month: -4°C in January
Night temperature: between -11°C and 17°C
Dry days: 200 days
Days with rain: 118 days
Days with snow: 47 days
Total rain sum: 367 mm
Hours of sunshine: 2488 hours

Do you want to go to Ottawa?

These are the travel companies where you can book a trip to Ottawa:

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) -4 -2 5 12 19 23 26 25 22 14 7 -1
Night temp. (°C) -11 -9 -3 3 9 14 17 16 12 6 0 -6
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 18 20 21 38 36 44 48 44 24 37 22 15
Days with rain 3 3 9 12 13 13 15 14 11 11 8 6
Days with snow 12 11 6 2 - - - - - 1 4 11
Dry days 16 14 16 16 18 17 16 17 19 19 18 14
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 3 4 6 8 9 10 10 10 9 5 5 4
Wind force (Bft) 3 3 3 3 3 3 2 2 3 3 3 3
UV-index 1 2 2 3 5 5 6 5 4 2 2 1

Best time to visit Ottawa

The best time to visit Ottawa in the state of Wisconsin is from May through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Ottawa is 26°C in July and the lowest is -4°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

Have you been to in Ottawa?

Leave your Ottawa weather experience for a chance to win $150!

Your email will not appear with the review and will not be passed on to third parties.
Seen a mistake?

Email us, we are grateful to you.