Best year time to visit Ottawa

General weather information about Ottawa

Average annual temperature is 8.1 °C

Absolute maximum temperature: 33.5 °C

Absolute minimum temperature: -31.6 °C

Number of sunny days: 124 days

Number of rainy days: 188 days

Number of snow days: 53 days

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* Weather data for Ottawa Canada is based on climate observations for 2026 year

Ottawa air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.511.07.627.531.633.532.227.032.129.114.39.7
Average daytime temperature (°C)-1.2-0.33.313.719.624.926.723.923.216.05.22.0
Average temperature (°C)-5.0-6.6-1.36.812.919.021.819.117.612.01.3-1.3
Average night temperature (°C)-8.5-11.4-5.21.06.413.617.515.213.18.8-1.8-3.8
Absolute minimum temperature (°C)-19.4-31.6-12.9-10.01.18.813.110.77.6-1.6-8.5-14.5

Ottawa monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.210.411.913.514.915.615.314.112.511.09.58.8
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.25.36.58.111.010.311.510.09.85.34.82.5
Precipitation (mm)1178584909310221812017994495
Sunny days6711122110171910119
Rainy days899181020302411211216
Snow days171211000000076

Ottawa - weather forecast by months

Ottawa weather in januaryOttawa weather in februaryOttawa weather in marchOttawa weather in aprilOttawa weather in mayOttawa weather in juneOttawa weather in julyOttawa weather in augustOttawa weather in septemberOttawa weather in octoberOttawa weather in novemberOttawa weather in december

Best time to visit Ottawa:

The best time to visit Ottawa during the most sunny months:

  • May — 11.0(h)
  • June — 10.3(h)
  • July — 11.5(h)
  • August — 10.0(h)
  • September — 9.8(h)

Months with the longest average daylight duration in Ottawa:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in Ottawa is at

  • July — 218(mm)

    • Weather forecast in the closest to Ottawa admin centers

    Weather forecast in the closest towns to Ottawa

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    Frequently asked questions

    When is the best time to visit Ottawa?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Ottawa.
    What is the weather like in Ottawa?
    See average temperature, rainfall and daylight hours for Ottawa by month in the table above.
    How many sunny days does Ottawa have?
    The monthly weather statistics above show sunshine and rainfall patterns for Ottawa throughout the year.