Dun Laoghaire Weather in July

During July, Dun Laoghaire experiences pleasant daytime temperatures of 19°C (66°F) and cooler nights around 13°C (55°F). As part of the summer season, expect quite a bit of rainfall. Around 81 mm (3.2 in) is typical.

Rainfall in Dun Laoghaire in July

Looking at the last 30 years, the data shows about 14 days with rain, averaging 81 mm (3.2 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Dun Laoghaire in July

Daytime highs in Dun Laoghaire in July reach 19°C (66°F), with nights around 13°C (55°F). July marks the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. On average, it sees the highest temps of the year.

Sunshine in Dun Laoghaire in July

The area enjoys a moderate level of sunlight, with around 166 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Dun Laoghaire in July

July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in July

The water temperature is 14°C (57°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

If you're inclined towards comfortable temperatures and drier conditions, July is a good time to visit Dun Laoghaire.

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

Dun Laoghaire Temperature in July

Min Temperature 13°C (55°F)  

Max Temperature 19°C (66°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 46%  

Precipitation 81 mm (3.2 in)  

Rainy days 14 days  

Humidity 69% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 166 hours *  

Percentage Sunshine 32% *  

* Data from: Dublin, Ireland (17 KM, 10 Miles).

What to Wear in Dun Laoghaire in July

Pleasant temperatures in July mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Dun Laoghaire in July

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

Swimming

6/10

Cycling

9/10

Walking

9/10

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 Dun Laoghaire's climate page.

More climate data for Dun Laoghaire

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Dun Laoghaire climate overview or explore weather in Ireland.