Best year time to visit South Sumas

General weather information about South Sumas

Average annual temperature is 11.0 °C

Absolute maximum temperature: 34.4 °C

Absolute minimum temperature: -8.4 °C

Number of sunny days: 160 days

Number of rainy days: 201 days

Number of snow days: 4 days

Look at detailed online map of South Sumas

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

South Sumas air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.68.816.826.834.431.331.734.428.324.714.911.8
Average daytime temperature (°C)6.86.211.212.923.023.027.127.822.016.19.58.3
Average temperature (°C)4.32.75.07.515.816.420.020.615.911.56.05.5
Average night temperature (°C)2.20.21.03.510.011.214.615.311.98.63.73.4
Absolute minimum temperature (°C)-3.6-8.4-5.1-1.73.86.011.511.67.9-0.2-0.3-0.6

South Sumas monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.810.211.913.715.316.115.714.412.610.89.28.3
Daylight minimum duration (h)8.09.010.012.014.015.015.013.011.09.08.08.0
Sunshine mean duration (h)2.73.47.36.311.010.813.111.68.95.54.32.4
Precipitation (mm)1271861091473145203382130263230
Sunny days55114211827241413135
Rainy days2421202610124716181726
Snow days220000000000

South Sumas - weather forecast by months

South Sumas weather in januarySouth Sumas weather in februarySouth Sumas weather in marchSouth Sumas weather in aprilSouth Sumas weather in maySouth Sumas weather in juneSouth Sumas weather in julySouth Sumas weather in augustSouth Sumas weather in septemberSouth Sumas weather in octoberSouth Sumas weather in novemberSouth Sumas weather in december

Best time to visit South Sumas:

The best time to visit South Sumas during the most sunny months:

  • May — 11.0(h)
  • June — 10.8(h)
  • July — 13.1(h)
  • August — 11.6(h)

Months with the longest average daylight duration in South Sumas:

  • June — 16.1(h)
  • July — 15.7(h)

The largest precipitation sum in South Sumas is at

  • February — 186(mm)
  • April — 147(mm)
  • November — 263(mm)
  • December — 230(mm)

    • Weather forecast in the closest to South Sumas admin centers

    Weather forecast in the closest towns to South Sumas

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    Frequently asked questions

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