Best year time to visit Central Islip

General weather information about Central Islip

Average annual temperature is 12.7 °C

Absolute maximum temperature: 34.1 °C

Absolute minimum temperature: -16.7 °C

Number of sunny days: 166 days

Number of rainy days: 196 days

Number of snow days: 3 days

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

Central Islip air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.620.715.528.827.928.232.031.134.127.518.916.5
Average daytime temperature (°C)8.57.89.817.020.224.028.726.824.119.211.29.3
Average temperature (°C)4.83.45.211.814.819.024.222.519.814.66.65.4
Average night temperature (°C)1.2-0.71.27.59.914.820.418.716.510.92.62.0
Absolute minimum temperature (°C)-2.9-16.7-4.2-0.44.59.516.315.511.66.1-4.1-4.2

Central Islip monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.611.913.314.515.014.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.76.67.38.412.211.311.710.57.97.97.35.5
Precipitation (mm)13349148142651061901652419458183
Sunny days10151412201181112151919
Rainy days211116181119232018161112
Snow days021000000000

Central Islip - weather forecast by months

Central Islip weather in januaryCentral Islip weather in februaryCentral Islip weather in marchCentral Islip weather in aprilCentral Islip weather in mayCentral Islip weather in juneCentral Islip weather in julyCentral Islip weather in augustCentral Islip weather in septemberCentral Islip weather in octoberCentral Islip weather in novemberCentral Islip weather in december

Best time to visit Central Islip:

The best time to visit Central Islip during the most sunny months:

  • May — 12.2(h)
  • June — 11.3(h)
  • July — 11.7(h)

The largest precipitation sum in Central Islip is at

  • July — 190(mm)
  • August — 165(mm)
  • September — 241(mm)
  • December — 183(mm)

    • Weather forecast in the closest to Central Islip admin centers

    Weather forecast in the closest towns to Central Islip

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    Frequently asked questions

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