Best year time to visit Port Ontario

General weather information about Port Ontario

Average annual temperature is 9.9 °C

Absolute maximum temperature: 32.1 °C

Absolute minimum temperature: -25.7 °C

Number of sunny days: 114 days

Number of rainy days: 229 days

Number of snow days: 22 days

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* Weather data for Port Ontario United States is based on climate observations for 2026 year

Port Ontario air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.216.310.926.724.728.832.127.529.228.714.510.9
Average daytime temperature (°C)2.84.13.914.316.822.225.923.321.816.37.76.0
Average temperature (°C)0.0-1.20.68.812.118.122.019.818.112.74.23.2
Average night temperature (°C)-2.4-5.1-2.64.57.814.718.817.015.010.11.81.2
Absolute minimum temperature (°C)-9.9-25.7-10.0-4.72.310.315.913.510.02.4-2.9-6.0

Port Ontario monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.415.113.912.511.09.79.0
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.64.85.78.711.911.111.510.49.85.45.02.4
Precipitation (mm)129851011107113412714278194126159
Sunny days558142198518858
Rainy days231615161021232612232321
Snow days378000000022

Port Ontario - weather forecast by months

Port Ontario weather in januaryPort Ontario weather in februaryPort Ontario weather in marchPort Ontario weather in aprilPort Ontario weather in mayPort Ontario weather in junePort Ontario weather in julyPort Ontario weather in augustPort Ontario weather in septemberPort Ontario weather in octoberPort Ontario weather in novemberPort Ontario weather in december

Best time to visit Port Ontario:

The best time to visit Port Ontario during the most sunny months:

  • May — 11.9(h)
  • June — 11.1(h)
  • July — 11.5(h)
  • August — 10.4(h)
  • September — 9.8(h)

Months with the longest average daylight duration in Port Ontario:

  • June — 15.4(h)

The largest precipitation sum in Port Ontario is at

  • October — 194(mm)
  • December — 159(mm)

    • Weather forecast in the closest to Port Ontario admin centers

    Weather forecast in the closest towns to Port Ontario

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    Frequently asked questions

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