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Ballymena Weather and Climate: A Comprehensive Guide

The temperature in Ballymena varies moderately throughout the year. The temperatures shift from pleasant to cold. It is also known for its large amounts of rainfall. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

In Ballymena, seasonal changes bring about a moderate variation in temperatures. Typically, average maximum daytime temperatures range from a pleasant 19°C in July to a chilly 9°C in the coolest month, February.

Nights are cooler, with lows often dropping to around 3°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Ballymena has a relatively rainy climate with high precipitation levels, averaging 1045 mm of rainfall annually. Precipitation levels in Ballymena remain relatively steady throughout the year. August has the most rain, with 98 mm over 19 days. In March, this drops slightly to 73 mm, making the city's climate fairly predictable.

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

Sunshine over the year

For those who appreciate different seasons, Ballymena serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.1 hours of sunshine daily, and embrace the darker days in December, offering only 1.3 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Belfast, Ireland (24 KM, 15 Miles).

Daily hours of sunshine

Data from: Belfast, Ireland (24 KM, 15 Miles).

Average water temperature

The mean water temperature over the year ranges from 7°C in February to 13°C in August.

Water temperature over the year

Data from: Belfast, Ireland (24 KM, 15 Miles).

Forecast for Ballymena

Sat   Jan 11
6°C | 2°C
SE 4 m/s
2.7 mm
broken clouds and rain

broken clouds and rain

Sun   Jan 12
9°C | 2°C
S 6 m/s
overcast and no rain

overcast and no rain

Mon   Jan 13
12°C | 9°C
S 6 m/s
1.7 mm
overcast and rain

overcast and rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Ballymena in the United Kingdom

Other facts from our historical weather data:
  • Which is the warmest month in Ballymena?
    July has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Ballymena?
    The coldest month is February with an average maximum temperature of 9°C.
  • Which is the wettest month in Ballymena?
    August tops the wettest month list with 98 mm of rainfall.
  • Which is the driest month in Ballymena?
    March is the driest month with 73 mm of precipitation.
  • Which is the sunniest month in Ballymena?
    May is the sunniest month with an average of 184 hours of sunshine.

  • 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.