Dublin
Ireland
Long-term weather forecast
Long-term weather forecast
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July weather forecast and Climate
Dublin, Ireland

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A sunset view of the illuminated Ha Penny Bridge reflected in the water below, found in Dublin, Ireland
A sunset view of the illuminated Ha Penny Bridge reflected in the water below, found 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 zoo's are in plenty. Summer is as good as any time to explore the bicycle-friendly tracks.
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  • The 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).

  • The 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).

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  • The 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).

  • The 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).

  • The 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).

  • The average daylight in July: 16h

The month with the longest days is June (Average daylight: 17h).
Months with shortest days are January and December (Average daylight: 8h).

  • The 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).

  • The 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).

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