Ballymena Weather & Climate: Best Time to Visit
Ballymena, Antrim County, United Kingdom, experiences moderate temperature changes through the seasons. July is the warmest month with daytime highs of 19°C (66°F), while February is the coolest at 9°C (48°F).
The city receives considerable rainfall, with around 1045 mm (41 in) annually. August is the wettest month. May is the sunniest month, averaging 6.1 hours of sunshine per day.
Monthly Temperature in Ballymena
In Ballymena, seasonal changes bring about a moderate variation in temperatures. Typically, average maximum daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 9°C (48°F) in the coolest month, February.
Nights vary from 12°C (54°F) in July to around 3°C (37°F) during the colder months.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ballymena
Ballymena has a relatively rainy climate with high precipitation levels, averaging 1045 mm (41 in) of rainfall annually. Precipitation levels in Ballymena remain relatively steady throughout the year. August has the most rain, with 98 mm (3.9 in) over 19 days. In the driest month March, this drops slightly to 73 mm (2.9 in), making the city's climate fairly predictable. For more details, please visit our Ballymena Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Ballymena
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
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Ballymena
The mean water temperature over the year ranges from 7°C (45°F) in February to 13°C (55°F) in August.
Water temperature over the year
Humidity in Ballymena by Month
The city experiences its highest humidity in September, reaching 91%. In February, the humidity drops to its lowest level at 86%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Ballymena
The average wind speed over the year ranges from 4 m/s (8 knots) to 5 m/s (10 knots). It is lower in April, May, June, July, August and September and higher in January, February, March, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Ballymena 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Ballymena
During the months of June, July, August and September, Ballymena enjoys pleasant weather with average temperatures ranging from 17°C (63°F) to 19°C (66°F). These months are perfect for sightseeing and exploring.Rainfall during this time ranges from 82 mm (3.2 in) in September to 98 mm (3.9 in) in August. This means you can expect a mix of sunny days and occasional showers. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
