Best year time to visit Smithtown

General weather information about Smithtown

Average annual temperature is 16.9 °C

Absolute maximum temperature: 36.0 °C

Absolute minimum temperature: -6.5 °C

Number of sunny days: 178 days

Number of rainy days: 187 days

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

Smithtown air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.526.929.229.829.633.034.736.035.128.425.323.0
Average daytime temperature (°C)14.816.917.723.123.428.332.231.428.023.516.614.7
Average temperature (°C)9.511.311.717.018.422.626.625.822.717.311.08.9
Average night temperature (°C)5.46.96.912.114.218.122.221.518.512.76.74.6
Absolute minimum temperature (°C)-1.8-6.5-1.71.48.210.816.914.213.46.3-4.5-2.8

Smithtown monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.010.912.013.114.114.614.313.512.411.310.39.7
Daylight minimum duration (h)9.010.011.012.013.014.014.012.011.010.09.09.0
Sunshine mean duration (h)6.37.28.29.59.811.111.510.88.99.07.46.6
Precipitation (mm)103625712066781351531393958162
Sunny days1611171413891215222318
Rainy days1517141618222219159713
Snow days000000000000

Smithtown - weather forecast by months

Smithtown weather in januarySmithtown weather in februarySmithtown weather in marchSmithtown weather in aprilSmithtown weather in maySmithtown weather in juneSmithtown weather in julySmithtown weather in augustSmithtown weather in septemberSmithtown weather in octoberSmithtown weather in novemberSmithtown weather in december

Best time to visit Smithtown:

The best time to visit Smithtown during the most sunny months:

  • July — 11.5(h)

The largest precipitation sum in Smithtown is at

  • July — 135(mm)
  • August — 153(mm)
  • September — 139(mm)
  • December — 162(mm)

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    Frequently asked questions

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