Portmarnock Weather in August

What's the weather like in Portmarnock (Leinster) in August 2024?

The climate in Portmarnock during August can be summarized as mild and reasonably dry.

August is in the summer in Portmarnock and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 11°C (52°F) is normal.

Portmarnock weather averages (imperial / metric)
Daytime temperature 18.7°C 65.6°F
Nightly temperature 11°C 51.8°F
Average temperature 14.8°C 58.7°F
Daily sunshine 5.6 hrs
Avg rainfall 75 mm 3 ins
Rainy days 16 days
Sea temperature 15.7°C 60.2°F
Humidity 82%
Windspeed 15.8kph 10 mph

On average August is the 6th wettest month of the year in Portmarnock with around 75mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.6 hours of sunshine per day.

August temperatures in Portmarnock

Portmarnock average temperature in August

August rainfall

Portmarnock average rain in August

August hourly sunshine

Portmarnock average rain in August

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 August 2024.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Portmarnock weather stats

Portmarnock weather statistics
Hottest month: July 18.8°C 65.8°F
Driest month: April 55mm 2.2ins
Sunniest month: May 6.6hrs
Coldest month: February 7.4°C 45.3°F
Wettest month: December 94mm 3.7ins
Map showing location of Portmarnock (53.42306, -6.1375) Portmarnock map pin © Google

Locations nearby

Top Ireland locations