Portrush, where it's located

The climate of Portrush is oceanic, with quite cold, rainy winters and mild, relatively rainy summers.
The city is located on the northern coast of Northern Ireland.
The average temperature of the coldest month (February) is of 5.5 °C (42 °F), that of the warmest month (August) is of 15.4 °C (60 °F). Here are the average temperatures.
Portrush - Average temperatures
Min (°C)3346810121211864
Max (°C)881012151618181613109
Min (°F)373739434650545452464339
Max (°F)464650545961646461555048

Precipitation amounts to 970 millimeters (38.2 inches) per year: so, it is at an intermediate level. It ranges from 55 mm (2.2 in) in the driest month (April) to 110 mm (4.3 in) in the wettest ones (November, December). Here is the average precipitation.
Portrush - Average precipitation

On average, there are around 1,405 sunshine hours per year. So, the sun doesn't shine often. Here are the average sunshine hours per day.
Portrush - Sunshine

The sea temperature ranges between 9 °C (48 °F) and 14 °C (57 °F). So, it is cold all year round. Here are the average sea temperatures.
Portrush - Sea temperature
Temp (°C)99891012141414131210
Temp (°F)484846485054575757555450


Best Time

The best time to visit Portrush is the summer, from June to August, since it is the mildest of the year. The temperatures are generally good for outdoors activities, although it's better to bring an umbrella, and a sweatshirt or sweater for the evening or for cool days.