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The climate of Belfast (Northern Ireland)
Belfast is the largest city in Northern Ireland and has been the capital of the country since 1921. Unfortunately, the city is known for the many riots that took place between Catholics and Protestants. Since the end of the 20th century there has been a truce causing it to be relatively quiet in Belfast. The city is also famous for the many ships that were built here. Among them was the Titanic. Music lovers will also recognize the name of the city from the song ‘Belfast Child’ by the famous pop group U2. Whoever makes a city trip to Belfast should bear in mind that the weather will be dull. Belfast has a moderate maritime climate with fairly mild winters and reasonably warm summers. On average about 1,000 millimeters of annual precipitation can be recorded, most of which falls in the form of rain. The wettest months are January and November. Spring is slightly drier than the rest of the year, this is also the sunniest period. May and June are the sunniest months with about 6 hours of sunshine per day. From July chances of overcast skies increase.

 

Climate information
The figures below are based on long term weather and climate records. They are an average for Belfast.

average
 maximum
temperature (°C)

average
minimum

temperature (°C)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (°C)
January 7 2 2 20 8
February 7 2 2 15 7
March 9 2 3 19 7
April 11 4 5 15 8
May 14 6 6 16 10
June 17 9 6 15 12
July 18 11 5 15 14
August 18 11 5 17 15
September 16 9 4 17 14
October 13 7 3 19 13
November 9 4 2 19 12
December 8 2 1 20 10
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate figures are very useful but don’t present a general impression of the climate and the eventual weather circumstances within a certain period. The figures don’t always reflect the chance of wintry weather, extreme heat or hurricanes. That is why we offer useful extra climate information for each month of the year:
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.

 

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