Best year time to visit Boston

General weather information about Boston

Average annual temperature is 10.9 °C

Absolute maximum temperature: 25.4 °C

Absolute minimum temperature: -2.5 °C

Number of sunny days: 57 days

Number of rainy days: 306 days

Number of snow days: 2 days

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* Weather data for Boston Ireland is based on climate observations for 2026 year

Boston air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.513.714.417.322.724.820.924.625.421.213.212.6
Average daytime temperature (°C)8.39.99.812.416.520.616.818.118.114.010.19.1
Average temperature (°C)6.17.67.09.212.616.614.415.214.711.28.17.5
Average night temperature (°C)3.95.14.36.08.912.712.112.411.48.65.95.6
Absolute minimum temperature (°C)-2.5-1.4-0.71.85.69.38.410.05.13.4-1.5-2.3

Boston monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.012.014.016.016.016.015.013.011.09.07.0
Daylight mean duration (h)8.29.911.914.015.816.816.414.712.710.68.77.7
Daylight minimum duration (h)7.08.010.012.015.016.015.013.011.09.07.07.0
Sunshine mean duration (h)3.23.34.36.99.910.68.28.96.64.44.32.4
Precipitation (mm)151402079567144231139154173136183
Sunny days4833118105662
Rainy days252028272022303125252429
Snow days200000000000

Boston - weather forecast by months

Boston weather in januaryBoston weather in februaryBoston weather in marchBoston weather in aprilBoston weather in mayBoston weather in juneBoston weather in julyBoston weather in augustBoston weather in septemberBoston weather in octoberBoston weather in novemberBoston weather in december

Best time to visit Boston:

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

  • May — 9.9(h)
  • June — 10.6(h)
  • July — 8.2(h)
  • August — 8.9(h)

Months with the longest average daylight duration in Boston:

  • May — 15.8(h)
  • June — 16.8(h)
  • July — 16.4(h)

The largest precipitation sum in Boston is at

  • March — 207(mm)
  • July — 231(mm)
  • December — 183(mm)

    • Weather forecast in the closest to Boston admin centers

    Weather forecast in the closest towns to Boston

    Explore Boston

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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