The last frost in Carrickfergus, Northern Ireland was the night of the Tuesday 09/02/2021 to Wednesday 10/02/2021, with a minimum air temperature of 1.0°C (33.8°F), and therefore a probable minimum ground temperature of around -2.0°C (28.4°F).
There are no frosts forecast for Carrickfergus in the next 5-days.