Best year time to visit Port William

General weather information about Port William

Average annual temperature is 4.6 °C

Absolute maximum temperature: 20.1 °C

Absolute minimum temperature: -12.7 °C

Number of sunny days: 101 days

Number of rainy days: 235 days

Number of snow days: 29 days

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

Port William air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.04.15.57.410.416.319.220.116.510.98.45.0
Average daytime temperature (°C)3.21.61.92.87.411.314.515.411.47.44.11.1
Average temperature (°C)1.9-1.0-0.60.05.38.811.712.79.25.62.4-1.0
Average night temperature (°C)0.2-3.7-2.4-2.23.77.19.710.97.44.30.8-2.9
Absolute minimum temperature (°C)-4.2-12.7-9.4-10.50.33.27.38.03.0-0.2-5.3-8.0

Port William monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.017.018.018.016.014.011.08.06.0
Daylight mean duration (h)7.29.311.814.416.818.217.515.412.810.37.96.5
Daylight minimum duration (h)6.08.010.013.015.017.016.014.011.09.06.06.0
Sunshine mean duration (h)1.34.77.78.74.65.67.17.18.25.33.31.9
Precipitation (mm)170971065424716018413011294124129
Sunny days38171016101091476
Rainy days27148153024212121172017
Snow days166500000038

Port William - weather forecast by months

Port William weather in januaryPort William weather in februaryPort William weather in marchPort William weather in aprilPort William weather in mayPort William weather in junePort William weather in julyPort William weather in augustPort William weather in septemberPort William weather in octoberPort William weather in novemberPort William weather in december

Best time to visit Port William:

The best time to visit Port William during the most sunny months:

  • March — 7.7(h)
  • April — 8.7(h)
  • July — 7.1(h)
  • August — 7.1(h)
  • September — 8.2(h)

Months with the longest average daylight duration in Port William:

  • May — 16.8(h)
  • June — 18.2(h)
  • July — 17.5(h)

The largest precipitation sum in Port William is at

  • January — 170(mm)
  • May — 247(mm)
  • July — 184(mm)

    • Weather forecast in the closest to Port William admin centers

    Weather forecast in the closest towns to Port William

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    Frequently asked questions

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