Ardglass weather

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

• Ardglass weather averages
• Ardglass weather by month
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Ardglass weather averages

Check the Ardglass 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 Ardglass, Northern Ireland.

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Ardglass weather by month

Check the weather for Ardglass, 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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Ardglass weather in January

The average maximum daytime temperature in Ardglass in January 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 2 hours of sunshine a day in Ardglass during January.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 19
  19 days with some rainfall
• 2
  2°C min night temperature
• 112
  112 mm of monthly rainfall

On average 112 mm (4.4 inches) of rain normally falls in Ardglass during January with rain falling on 19 days of the month.

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Ardglass weather in February

The average maximum daytime temperature in Ardglass in February is a cool 8°C (46°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 Ardglass during February.

• 8
  8°C max day temperature
• 3
  3 hours of sunshine per day
• 16
  16 days with some rainfall
• 2
  2°C min night temperature
• 84
  84 mm of monthly rainfall

On average 84 mm (3.3 inches) of rain normally falls in Ardglass during February with rain falling on 16 days of the month.

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Ardglass weather in March

The average maximum daytime temperature in Ardglass in March 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 4 hours of sunshine a day in Ardglass during March.

• 9
  9°C max day temperature
• 4
  4 hours of sunshine per day
• 19
  19 days with some rainfall
• 3
  3°C min night temperature
• 90
  90 mm of monthly rainfall

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

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Ardglass weather in April

The average maximum daytime temperature in Ardglass in April is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 5 hours of sunshine a day in Ardglass during April.

• 11
  11°C max day temperature
• 5
  5 hours of sunshine per day
• 15
  15 days with some rainfall
• 4
  4°C min night temperature
• 74
  74 mm of monthly rainfall

On average 74 mm (2.9 inches) of rain normally falls in Ardglass during April with rain falling on 15 days of the month.

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Ardglass weather in May

The average maximum daytime temperature in Ardglass 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 Ardglass during May.

• 14
  14°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 6
  6°C min night temperature
• 67
  67 mm of monthly rainfall

On average 67 mm (2.6 inches) of rain normally falls in Ardglass during May with rain falling on 15 days of the month.

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Ardglass weather in June

The average maximum daytime temperature in Ardglass in June is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 6 hours of sunshine a day in Ardglass during June.

• 17
  17°C max day temperature
• 6
  6 hours of sunshine per day
• 14
  14 days with some rainfall
• 9
  9°C min night temperature
• 68
  68 mm of monthly rainfall

On average 68 mm (2.7 inches) of rain normally falls in Ardglass during June with rain falling on 14 days of the month.

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Ardglass weather in July

The average maximum daytime temperature in Ardglass in July is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 6 hours of sunshine a day in Ardglass during July.

• 19
  19°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 11
  11°C min night temperature
• 64
  64 mm of monthly rainfall

On average 64 mm (2.5 inches) of rain normally falls in Ardglass during July with rain falling on 15 days of the month.

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Ardglass weather in August

The average maximum daytime temperature in Ardglass in August is a comfortable 19°C (66°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 Ardglass during August.

• 19
  19°C max day temperature
• 5
  5 hours of sunshine per day
• 17
  17 days with some rainfall
• 11
  11°C min night temperature
• 88
  88 mm of monthly rainfall

On average 88 mm (3.5 inches) of rain normally falls in Ardglass during August with rain falling on 17 days of the month.

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Ardglass weather in September

The average maximum daytime temperature in Ardglass in September is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 4 hours of sunshine a day in Ardglass during September.

• 16
  16°C max day temperature
• 4
  4 hours of sunshine per day
• 16
  16 days with some rainfall
• 9
  9°C min night temperature
• 91
  91 mm of monthly rainfall

On average 91 mm (3.6 inches) of rain normally falls in Ardglass during September with rain falling on 16 days of the month.

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Ardglass weather in October

The average maximum daytime temperature in Ardglass in October is a cool 13°C (55°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 3 hours of sunshine a day in Ardglass during October.

• 13
  13°C max day temperature
• 3
  3 hours of sunshine per day
• 19
  19 days with some rainfall
• 7
  7°C min night temperature
• 109
  109 mm of monthly rainfall

On average 109 mm (4.3 inches) of rain normally falls in Ardglass during October with rain falling on 19 days of the month.

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Ardglass weather in November

The average maximum daytime temperature in Ardglass in November is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Ardglass during November.

• 10
  10°C max day temperature
• 2
  2 hours of sunshine per day
• 19
  19 days with some rainfall
• 4
  4°C min night temperature
• 103
  103 mm of monthly rainfall

On average 103 mm (4.1 inches) of rain normally falls in Ardglass during November with rain falling on 19 days of the month.

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Ardglass weather in December

The average maximum daytime temperature in Ardglass in December is a cool 8°C (46°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 Ardglass during December.

• 8
  8°C max day temperature
• 2
  2 hours of sunshine per day
• 19
  19 days with some rainfall
• 3
  3°C min night temperature
• 115
  115 mm of monthly rainfall

On average 115 mm (4.5 inches) of rain normally falls in Ardglass during December with rain falling on 19 days of the month.

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