The climate in Portmarnock during June can be summarized as mild and reasonably dry.
June is in the summer in Portmarnock and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 17°C (63°F), whilst at night 9°C (49°F) is normal.
|Daytime temperature||17.3°C 63.1°F|
|Nightly temperature||9.4°C 48.9°F|
|Average temperature||13.3°C 56°F|
|Daily sunshine||6.6 hrs|
|Avg rainfall||59 mm 2.3 ins|
|Rainy days||15 days|
|Sea temperature||12.8°C 55.1°F|
|Windspeed||15.8kph 10 mph|
On average June is the 3rd driest month of the year in Portmarnock with around 59mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Portmarnock in June 2020.
|Hottest month:||July||18.8°C 65.8°F|
|Driest month:||April||55mm 2.2ins|
|Coldest month:||February||7.4°C 45.3°F|
|Wettest month:||December||94mm 3.7ins|