Carrickfergus weather
The Carrickfergus weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Carrickfergus, Northern Ireland in 2026/2027.
Carrickfergus weather averages
Check the Carrickfergus 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 Carrickfergus, Northern Ireland.
Carrickfergus weather by month
Check the weather for Carrickfergus, 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.
Carrickfergus weather in January
The average maximum daytime temperature in Carrickfergus in January is a cold 7°C (45°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 Carrickfergus during January.
- 7°C max day temperature
7 - 2 hours of sunshine per day
2 - 20 days with some rainfall
20 - 3°C min night temperature
3 - 103 mm of monthly rainfall
103
On average 103 mm (4.1 inches) of rain normally falls in Carrickfergus during January with rain falling on 20 days of the month.
Carrickfergus weather in February
The average maximum daytime temperature in Carrickfergus in February is a cold 7°C (45°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 Carrickfergus during February.
- 7°C max day temperature7
- 2 hours of sunshine per day2
- 17 days with some rainfall
17 - 3°C min night temperature3
- 73 mm of monthly rainfall
73
On average 73 mm (2.9 inches) of rain normally falls in Carrickfergus during February with rain falling on 17 days of the month.
Carrickfergus weather in March
The average maximum daytime temperature in Carrickfergus 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 3 hours of sunshine a day in Carrickfergus during March.
- 9°C max day temperature
9 - 3 hours of sunshine per day
3 - 19 days with some rainfall19
- 3°C min night temperature3
- 78 mm of monthly rainfall78
On average 78 mm (3.1 inches) of rain normally falls in Carrickfergus during March with rain falling on 19 days of the month.
Carrickfergus weather in April
The average maximum daytime temperature in Carrickfergus 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 Carrickfergus during April.
- 11°C max day temperature11
- 5 hours of sunshine per day
5 - 15 days with some rainfall
15 - 4°C min night temperature4
- 59 mm of monthly rainfall
59
On average 59 mm (2.3 inches) of rain normally falls in Carrickfergus during April with rain falling on 15 days of the month.
Carrickfergus weather in May
The average maximum daytime temperature in Carrickfergus in May is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 6 hours of sunshine a day in Carrickfergus during May.
- 14°C max day temperature
14 - 6 hours of sunshine per day
6 - 15 days with some rainfall15
- 7°C min night temperature7
- 55 mm of monthly rainfall55
On average 55 mm (2.2 inches) of rain normally falls in Carrickfergus during May with rain falling on 15 days of the month.
Carrickfergus weather in June
The average maximum daytime temperature in Carrickfergus 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 Carrickfergus during June.
- 17°C max day temperature
17 - 6 hours of sunshine per day6
- 14 days with some rainfall14
- 9°C min night temperature9
- 65 mm of monthly rainfall65
On average 65 mm (2.6 inches) of rain normally falls in Carrickfergus during June with rain falling on 14 days of the month.
Carrickfergus weather in July
The average maximum daytime temperature in Carrickfergus 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 Carrickfergus during July.
- 18°C max day temperature
18 - 5 hours of sunshine per day5
- 16 days with some rainfall16
- 11°C min night temperature11
- 54 mm of monthly rainfall54
On average 54 mm (2.1 inches) of rain normally falls in Carrickfergus during July with rain falling on 16 days of the month.
Carrickfergus weather in August
The average maximum daytime temperature in Carrickfergus in August 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 Carrickfergus during August.
- 18°C max day temperature18
- 5 hours of sunshine per day5
- 17 days with some rainfall17
- 11°C min night temperature11
- 81 mm of monthly rainfall
81
On average 81 mm (3.2 inches) of rain normally falls in Carrickfergus during August with rain falling on 17 days of the month.
Carrickfergus weather in September
The average maximum daytime temperature in Carrickfergus 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 Carrickfergus during September.
- 16°C max day temperature16
- 4 hours of sunshine per day
4 - 17 days with some rainfall17
- 9°C min night temperature9
- 84 mm of monthly rainfall84
On average 84 mm (3.3 inches) of rain normally falls in Carrickfergus during September with rain falling on 17 days of the month.
Carrickfergus weather in October
The average maximum daytime temperature in Carrickfergus 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 Carrickfergus during October.
- 13°C max day temperature13
- 3 hours of sunshine per day3
- 19 days with some rainfall19
- 7°C min night temperature7
- 99 mm of monthly rainfall99
On average 99 mm (3.9 inches) of rain normally falls in Carrickfergus during October with rain falling on 19 days of the month.
Carrickfergus weather in November
The average maximum daytime temperature in Carrickfergus in November is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 2 hours of sunshine a day in Carrickfergus during November.
- 9°C max day temperature9
- 2 hours of sunshine per day2
- 19 days with some rainfall19
- 5°C min night temperature5
- 92 mm of monthly rainfall92
On average 92 mm (3.6 inches) of rain normally falls in Carrickfergus during November with rain falling on 19 days of the month.
Carrickfergus weather in December
The average maximum daytime temperature in Carrickfergus 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 1 hours of sunshine a day in Carrickfergus during December.
- 8°C max day temperature8
- 1 hour of sunshine per day
1 - 20 days with some rainfall20
- 3°C min night temperature3
- 94 mm of monthly rainfall94
On average 94 mm (3.7 inches) of rain normally falls in Carrickfergus during December with rain falling on 20 days of the month.