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Belfast (ME) Climate by Month

Belfast experiences great temperature shifts. The city's weather can transition from warm days to very cold weather. It also experiences much rain/snowfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

The climate in Belfast is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 25°C in July. In January, the coolest month of the year, temperatures drop to a very cold -1°C. At night, expect cooler temperatures, averaging -12°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Belfast has a notably wet climate with abundant precipitation, recording 1355 mm of rain/snowfall per year. Belfast experiences moderate seasonal variation in rainfall, with monthly averages ranging from 163 mm in October, the wettest month, and 91 mm in January, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

The best time of year to visit Belfast in the United States of America

During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Belfast?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Belfast?
    July has an average maximum temperature of 25°C and is the warmest month of the year.
  • Which is the coldest month in Belfast?
    The coldest month is January with an average maximum temperature of -1°C.
  • Which is the wettest month in Belfast?
    October tops the wettest month list with 163 mm of rainfall.
  • Which is the driest month in Belfast?
    January is the driest month with 91 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Belfast (ME)

    Fri   Nov 22
    9°C | 5°C
    E 22 km/h
    14 mm
    overcast and heavy rain

    overcast and heavy rain

    Sat   Nov 23
    7°C | 3°C
    N 25 km/h
    28 mm
    overcast and heavy rain

    overcast and heavy rain

    Sun   Nov 24
    8°C | 3°C
    NW 36 km/h
    0.7 mm
    broken clouds and slight rain

    broken clouds and slight rain