Best year time to visit Roslyn Harbor

General weather information about Roslyn Harbor

Average annual temperature is 12.8 °C

Absolute maximum temperature: 33.9 °C

Absolute minimum temperature: -16.7 °C

Number of sunny days: 171 days

Number of rainy days: 190 days

Number of snow days: 4 days

Look at detailed online map of Roslyn Harbor

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

Roslyn Harbor air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.320.315.129.828.430.932.630.733.927.819.316.4
Average daytime temperature (°C)8.37.89.917.520.724.928.926.924.019.311.09.1
Average temperature (°C)4.73.45.212.215.219.424.222.619.814.76.75.3
Average night temperature (°C)1.6-0.51.38.010.415.320.518.816.511.23.02.2
Absolute minimum temperature (°C)-3.2-16.7-3.20.45.59.816.615.811.86.6-3.9-4.7

Roslyn Harbor 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)4.86.67.48.512.310.911.610.77.67.67.35.2
Precipitation (mm)16348131108451021671502599351187
Sunny days1316141622971111152017
Rainy days1810161492124201916914
Snow days021000000010

Roslyn Harbor - weather forecast by months

Roslyn Harbor weather in januaryRoslyn Harbor weather in februaryRoslyn Harbor weather in marchRoslyn Harbor weather in aprilRoslyn Harbor weather in mayRoslyn Harbor weather in juneRoslyn Harbor weather in julyRoslyn Harbor weather in augustRoslyn Harbor weather in septemberRoslyn Harbor weather in octoberRoslyn Harbor weather in novemberRoslyn Harbor weather in december

Best time to visit Roslyn Harbor:

The best time to visit Roslyn Harbor during the most sunny months:

  • May — 12.3(h)
  • June — 10.9(h)
  • July — 11.6(h)
  • August — 10.7(h)

The largest precipitation sum in Roslyn Harbor is at

  • January — 163(mm)
  • July — 167(mm)
  • September — 259(mm)
  • December — 187(mm)

    • Weather forecast in the closest to Roslyn Harbor admin centers

    Weather forecast in the closest towns to Roslyn Harbor

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    Frequently asked questions

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