Dublin
Ireland
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Dublin, Ireland

A sunset view of the illuminated Ha Penny Bridge reflected in the water below, in Dublin, Ireland
A sunset view of the illuminated Ha Penny Bridge reflected in the water below, in Dublin, Ireland
July is the hottest month of the year as the average temperature peaks to 19.8°C (67.6°F). Swimming and other water activities are enjoyable in mid-summer with the Irish Sea at the warmest of the year. It is unwise to take the Dublin sun in July casually as the ultraviolet index often crosses 6, and sunglasses and hats are in order.
The weather is perfect for many festivals like the Dublin Irish Festival and other activities like exhibitions, art and craft galleries, children's theme parks, and zoos are in plenty. Summer is as good as any time to explore the bicycle-friendly tracks.

What is the warmest month in Dublin?

With an average high-temperature of 20.2°C (68.4°F) and an average low-temperature of 13.5°C (56.3°F), July is the warmest month in Dublin, Ireland.

What is the temperature in July in Dublin?

In July, in Dublin, Ireland, the average high-temperature is 20.2°C (68.4°F), and the average low-temperature is 13.5°C (56.3°F).

How many days does it rain in July in Dublin?

In Dublin, Ireland, in July, it is raining for 10 days, with typically 50.5mm (2") of accumulated precipitation.

What is the water temperature in July in Dublin?

In Dublin, Ireland, in July, the average water temperature is 14.1°C (57.4°F). Swimming in 14.1°C (57.4°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in July in Dublin?

The average length of the day in July in Dublin, Ireland, is 16.4h.

How many hours of sunshine does Dublin have in July?

The average sunshine in July in Dublin, Ireland, is 5.3h.

When is the highest UV index in Dublin?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Dublin, Ireland.

What is the UV index reading in July in Dublin?

In July, the average daily maximum UV index in Dublin is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays.
Average temperature in July - Dublin, Ireland
  • Average high temperature in July: 20.2°C

The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in July: 13.5°C

The month with the highest average low temperature is July (13.5°C).
Coldest months (with the lowest average low temperature) are January and February (3.9°C).

Average rainfall in July - Dublin, Ireland
  • Average rainfall in July: 50.5mm

The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the lowest rainfall) is February (46.1mm).

Average rainfall days in July - Dublin, Ireland
  • Average rainfall days in July: 10 days

Months with the highest number of rainy days are January, October and December (12 days).
Months with the lowest number of rainy days are June and September (9 days).

Average sea temperature in July - Dublin, Ireland
  • Average sea temperature in July: 14.1°C

The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).

Average daylight in July / Average sunshine in July - Dublin, Ireland
  • Average daylight in July: 16.4h

The month with the longest days is June (Average daylight: 16.9h).
The month with shortest days is December (Average daylight: 7.6h).

  • Average sunshine in July: 5.3h

The month with most sunshine is May (Average sunshine: 6.3h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in July - Dublin, Ireland
  • Average UV index in July: 6

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January and December (UV index 0).