Best year time to visit Cape St. Marys

General weather information about Cape St. Marys

Average annual temperature is 8.9 °C

Absolute maximum temperature: 25.2 °C

Absolute minimum temperature: -27.7 °C

Number of sunny days: 138 days

Number of rainy days: 198 days

Number of snow days: 29 days

Look at detailed online map of Cape St. Marys

* Weather data for Cape St. Marys Canada is based on climate observations for 2026 year

Cape St. Marys air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.710.18.517.918.422.225.223.923.222.313.415.0
Average daytime temperature (°C)4.72.54.310.213.317.222.120.319.215.97.15.5
Average temperature (°C)2.0-1.41.46.710.113.819.017.516.012.74.63.1
Average night temperature (°C)-0.5-5.4-0.94.07.411.416.615.113.510.42.10.7
Absolute minimum temperature (°C)-6.0-27.7-5.1-2.14.57.714.412.77.53.9-4.3-5.9

Cape St. Marys 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)9.310.511.913.514.815.415.114.012.511.09.78.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.44.46.59.211.67.47.98.67.97.95.43.2
Precipitation (mm)257829246543351841561391206996
Sunny days4791519991317101313
Rainy days241014151221221813211414
Snow days3118000000034

Cape St. Marys - weather forecast by months

Cape St. Marys weather in januaryCape St. Marys weather in februaryCape St. Marys weather in marchCape St. Marys weather in aprilCape St. Marys weather in mayCape St. Marys weather in juneCape St. Marys weather in julyCape St. Marys weather in augustCape St. Marys weather in septemberCape St. Marys weather in octoberCape St. Marys weather in novemberCape St. Marys weather in december

Best time to visit Cape St. Marys:

The best time to visit Cape St. Marys during the most sunny months:

  • April — 9.2(h)
  • May — 11.6(h)

Months with the longest average daylight duration in Cape St. Marys:

  • June — 15.4(h)

The largest precipitation sum in Cape St. Marys is at

  • January — 257(mm)
  • June — 335(mm)
  • July — 184(mm)

    • Weather forecast in the closest to Cape St. Marys admin centers

    Weather forecast in the closest towns to Cape St. Marys

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    Frequently asked questions

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