Weather in Niagara Falls in May

General weather information about Niagara Falls

Average annual temperature is 10.4 °C

Absolute maximum temperature: 31.0 °C

Absolute minimum temperature: -18.5 °C

Number of sunny days: 135 days

Number of rainy days: 201 days

Number of snow days: 29 days

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

Niagara Falls air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)8.014.111.527.630.530.831.029.730.227.914.914.0
Average daytime temperature (°C)3.14.85.515.119.524.226.924.422.916.28.46.8
Average temperature (°C)0.2-0.21.38.913.519.222.320.118.112.64.73.9
Average night temperature (°C)-2.1-4.0-1.74.17.914.618.316.614.39.71.41.3
Absolute minimum temperature (°C)-9.5-18.5-8.2-4.62.610.814.511.69.0-1.5-5.4-4.5

Niagara Falls 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)9.410.511.913.414.715.315.013.912.511.09.79.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.25.85.88.311.410.511.29.89.25.25.12.8
Precipitation (mm)1187910012845106125136218154101
Sunny days711101020126101991110
Rainy days161012201118252111221718
Snow days879000000023

Niagara Falls - weather forecast by months

Niagara Falls weather in januaryNiagara Falls weather in februaryNiagara Falls weather in marchNiagara Falls weather in aprilNiagara Falls weather in mayNiagara Falls weather in juneNiagara Falls weather in julyNiagara Falls weather in augustNiagara Falls weather in septemberNiagara Falls weather in octoberNiagara Falls weather in novemberNiagara Falls weather in december

Best time to visit Niagara Falls:

The best time to visit Niagara Falls during the most sunny months:

  • May — 11.4(h)
  • June — 10.5(h)
  • July — 11.2(h)
  • August — 9.8(h)
  • September — 9.2(h)

Months with the longest average daylight duration in Niagara Falls:

  • June — 15.3(h)

The largest precipitation sum in Niagara Falls is at

  • January — 118(mm)
  • April — 128(mm)
  • July — 125(mm)
  • August — 136(mm)

    • Weather forecast in the closest to Niagara Falls admin centers

    Weather forecast in the closest towns to Niagara Falls

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    Frequently asked questions

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