Best year time to visit Long Island

General weather information about Long Island

Average annual temperature is 14.5 °C

Absolute maximum temperature: 35.1 °C

Absolute minimum temperature: -7.3 °C

Number of sunny days: 186 days

Number of rainy days: 176 days

Number of snow days: 3 days

Look at detailed online map of Long Island

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

Long Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.224.325.628.729.031.134.035.132.828.825.918.8
Average daytime temperature (°C)11.614.715.521.224.427.031.029.327.621.716.211.7
Average temperature (°C)6.08.58.913.817.620.724.623.320.715.08.85.7
Average night temperature (°C)2.33.93.67.511.815.119.218.515.19.53.41.2
Absolute minimum temperature (°C)-6.4-7.3-6.80.83.17.914.814.011.03.5-5.4-5.5

Long Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.012.011.010.09.0
Daylight mean duration (h)10.010.912.013.114.114.614.413.512.411.310.29.7
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.65.88.29.110.311.011.410.110.68.47.85.9
Precipitation (mm)118122898686475212071213580
Sunny days121117171414121318202216
Rainy days18171213171619181211815
Snow days102000000000

Best time to visit Long Island:

The best time to visit Long Island during the most sunny months:

  • June — 11.0(h)
  • July — 11.4(h)

The largest precipitation sum in Long Island is at

  • January — 118(mm)
  • February — 122(mm)
  • August — 120(mm)
  • Frequently asked questions

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