Best year time to visit Hyannis

General weather information about Hyannis

Average annual temperature is 12.2 °C

Absolute maximum temperature: 31.1 °C

Absolute minimum temperature: -22.4 °C

Number of sunny days: 166 days

Number of rainy days: 197 days

Number of snow days: 2 days

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

Hyannis air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.716.012.126.724.024.130.729.731.124.616.815.4
Average daytime temperature (°C)7.46.17.413.717.620.426.424.822.517.910.48.3
Average temperature (°C)4.72.54.610.113.917.223.321.819.714.87.25.8
Average night temperature (°C)1.9-1.31.77.110.814.620.819.117.412.14.23.3
Absolute minimum temperature (°C)-3.2-22.4-1.40.26.99.317.916.812.76.8-2.4-3.6

Hyannis 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)9.610.611.913.314.515.114.913.812.511.19.99.2
Daylight minimum duration (h)9.010.011.012.014.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.05.86.98.911.710.210.49.87.97.97.25.0
Precipitation (mm)229679769557082841525441125
Sunny days61215152111131213132114
Rainy days25141615101918191718917
Snow days020000000000

Hyannis - weather forecast by months

Hyannis weather in januaryHyannis weather in februaryHyannis weather in marchHyannis weather in aprilHyannis weather in mayHyannis weather in juneHyannis weather in julyHyannis weather in augustHyannis weather in septemberHyannis weather in octoberHyannis weather in novemberHyannis weather in december

Best time to visit Hyannis:

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

  • May — 11.7(h)
  • June — 10.2(h)
  • July — 10.4(h)

The largest precipitation sum in Hyannis is at

  • January — 229(mm)
  • September — 152(mm)
  • December — 125(mm)

    • Weather forecast in the closest to Hyannis admin centers

    Weather forecast in the closest towns to Hyannis

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    Frequently asked questions

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