Portmarnock Weather in June

Portmarnock in June averages 17°C (63°F) during the day and 11°C (52°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Portmarnock in June

Climate statistics over the past 30 years suggest around 15 days of rain, with 78 mm (3.1 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Portmarnock in June

Daytime highs in Portmarnock in June reach 17°C (63°F), with nights around 11°C (52°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Portmarnock in June

The area experiences a moderate amount of sunshine, with approximately 180 hours of sunlight expected. This means a decent mix of sun and overcast.

Wind Speed in Portmarnock in June

In June, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in June

The water sits at 12°C (54°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Ireland, check out our Portmarnock's climate page.

Portmarnock Temperature in June

Min Temperature 11°C (52°F)  

Max Temperature 17°C (63°F)  

Water Temperature 12°C (54°F) *  

Chance of Rain 48%  

Precipitation 78 mm (3.1 in)  

Rainy days 15 days  

Humidity 68% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 180 hours *  

Percentage Sunshine 39% *  

* Data from: Dublin, Ireland (7 KM, 4 Miles).

What to Wear in Portmarnock in June

Comfortable temperatures call for an easy wardrobe in June. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 12°C (54°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Portmarnock in June

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Portmarnock's climate page.

More climate data for Portmarnock

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Portmarnock climate overview or explore weather in Ireland.