Ballymena weather

The Ballymena weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Ballymena, Northern Ireland in 2026/2027.

• Ballymena weather averages
• Ballymena weather by month
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Ballymena weather averages

Check the Ballymena weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for Ballymena, Northern Ireland.

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Ballymena weather by month

Check the weather for Ballymena, Northern Ireland for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.

• January
• February
• March
• April
• May
• June
• July
• August
• September
• October
• November
• December

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Ballymena weather in January

The average maximum daytime temperature in Ballymena in January is a cold 6°C (43°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 1 hours of sunshine a day in Ballymena during January.

• 6
  6°C max day temperature
• 1
  1 hour of sunshine per day
• 21
  21 days with some rainfall
• 1
  1°C min night temperature
• 105
  105 mm of monthly rainfall

On average 105 mm (4.1 inches) of rain normally falls in Ballymena during January with rain falling on 21 days of the month.

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Ballymena weather in February

The average maximum daytime temperature in Ballymena in February is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 2 hours of sunshine a day in Ballymena during February.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 18
  18 days with some rainfall
• 1
  1°C min night temperature
• 73
  73 mm of monthly rainfall

On average 73 mm (2.9 inches) of rain normally falls in Ballymena during February with rain falling on 18 days of the month.

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Ballymena weather in March

The average maximum daytime temperature in Ballymena in March is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 3 hours of sunshine a day in Ballymena during March.

• 9
  9°C max day temperature
• 3
  3 hours of sunshine per day
• 20
  20 days with some rainfall
• 2
  2°C min night temperature
• 81
  81 mm of monthly rainfall

On average 81 mm (3.2 inches) of rain normally falls in Ballymena during March with rain falling on 20 days of the month.

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Ballymena weather in April

The average maximum daytime temperature in Ballymena in April is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 5 hours of sunshine a day in Ballymena during April.

• 11
  11°C max day temperature
• 5
  5 hours of sunshine per day
• 16
  16 days with some rainfall
• 3
  3°C min night temperature
• 66
  66 mm of monthly rainfall

On average 66 mm (2.6 inches) of rain normally falls in Ballymena during April with rain falling on 16 days of the month.

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Ballymena weather in May

The average maximum daytime temperature in Ballymena in May is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 6 hours of sunshine a day in Ballymena during May.

• 14
  14°C max day temperature
• 6
  6 hours of sunshine per day
• 16
  16 days with some rainfall
• 6
  6°C min night temperature
• 62
  62 mm of monthly rainfall

On average 62 mm (2.4 inches) of rain normally falls in Ballymena during May with rain falling on 16 days of the month.

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Ballymena weather in June

The average maximum daytime temperature in Ballymena in June is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 6 hours of sunshine a day in Ballymena during June.

• 16
  16°C max day temperature
• 6
  6 hours of sunshine per day
• 16
  16 days with some rainfall
• 8
  8°C min night temperature
• 67
  67 mm of monthly rainfall

On average 67 mm (2.6 inches) of rain normally falls in Ballymena during June with rain falling on 16 days of the month.

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Ballymena weather in July

The average maximum daytime temperature in Ballymena in July is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 5 hours of sunshine a day in Ballymena during July.

• 18
  18°C max day temperature
• 5
  5 hours of sunshine per day
• 18
  18 days with some rainfall
• 11
  11°C min night temperature
• 69
  69 mm of monthly rainfall

On average 69 mm (2.7 inches) of rain normally falls in Ballymena during July with rain falling on 18 days of the month.

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Ballymena weather in August

The average maximum daytime temperature in Ballymena in August is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 4 hours of sunshine a day in Ballymena during August.

• 18
  18°C max day temperature
• 4
  4 hours of sunshine per day
• 19
  19 days with some rainfall
• 10
  10°C min night temperature
• 88
  88 mm of monthly rainfall

On average 88 mm (3.5 inches) of rain normally falls in Ballymena during August with rain falling on 19 days of the month.

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Ballymena weather in September

The average maximum daytime temperature in Ballymena in September is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 3 hours of sunshine a day in Ballymena during September.

• 16
  16°C max day temperature
• 3
  3 hours of sunshine per day
• 19
  19 days with some rainfall
• 8
  8°C min night temperature
• 90
  90 mm of monthly rainfall

On average 90 mm (3.5 inches) of rain normally falls in Ballymena during September with rain falling on 19 days of the month.

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Ballymena weather in October

The average maximum daytime temperature in Ballymena in October is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 3 hours of sunshine a day in Ballymena during October.

• 12
  12°C max day temperature
• 3
  3 hours of sunshine per day
• 20
  20 days with some rainfall
• 6
  6°C min night temperature
• 104
  104 mm of monthly rainfall

On average 104 mm (4.1 inches) of rain normally falls in Ballymena during October with rain falling on 20 days of the month.

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Ballymena weather in November

The average maximum daytime temperature in Ballymena in November is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in Ballymena during November.

• 9
  9°C max day temperature
• 2
  2 hours of sunshine per day
• 20
  20 days with some rainfall
• 3
  3°C min night temperature
• 95
  95 mm of monthly rainfall

On average 95 mm (3.7 inches) of rain normally falls in Ballymena during November with rain falling on 20 days of the month.

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Ballymena weather in December

The average maximum daytime temperature in Ballymena in December is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 1 hours of sunshine a day in Ballymena during December.

• 7
  7°C max day temperature
• 1
  1 hour of sunshine per day
• 21
  21 days with some rainfall
• 2
  2°C min night temperature
• 101
  101 mm of monthly rainfall

On average 101 mm (4 inches) of rain normally falls in Ballymena during December with rain falling on 21 days of the month.

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