Best year time to visit Ontario on the Lake

General weather information about Ontario on the Lake

Average annual temperature is 10.6 °C

Absolute maximum temperature: 30.9 °C

Absolute minimum temperature: -19.4 °C

Number of sunny days: 124 days

Number of rainy days: 212 days

Number of snow days: 29 days

Look at detailed online map of Ontario on the Lake

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

Ontario on the Lake air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.217.411.025.125.228.930.928.129.729.815.313.5
Average daytime temperature (°C)3.35.34.614.016.821.626.023.621.816.78.87.0
Average temperature (°C)1.00.11.48.812.217.922.320.418.513.75.54.3
Average night temperature (°C)-0.9-3.5-1.24.88.114.819.117.815.711.12.92.3
Absolute minimum temperature (°C)-6.1-19.4-7.0-3.62.610.916.314.211.02.9-2.8-5.0

Ontario on the Lake 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)9.410.511.913.414.715.315.013.912.511.09.79.0
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.25.35.38.311.810.911.410.49.65.44.82.6
Precipitation (mm)11477881196493124130239680128
Sunny days591013221295181056
Rainy days19121417918222612212220
Snow days777000000035

Ontario on the Lake - weather forecast by months

Ontario on the Lake weather in januaryOntario on the Lake weather in februaryOntario on the Lake weather in marchOntario on the Lake weather in aprilOntario on the Lake weather in mayOntario on the Lake weather in juneOntario on the Lake weather in julyOntario on the Lake weather in augustOntario on the Lake weather in septemberOntario on the Lake weather in octoberOntario on the Lake weather in novemberOntario on the Lake weather in december

Best time to visit Ontario on the Lake:

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

  • May — 11.8(h)
  • June — 10.9(h)
  • July — 11.4(h)
  • August — 10.4(h)
  • September — 9.6(h)

Months with the longest average daylight duration in Ontario on the Lake:

  • June — 15.3(h)

The largest precipitation sum in Ontario on the Lake is at

  • July — 124(mm)
  • August — 130(mm)
  • December — 128(mm)

    • Weather forecast in the closest to Ontario on the Lake admin centers

    Weather forecast in the closest towns to Ontario on the Lake

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    Frequently asked questions

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