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.