Climate - Dublin (Ireland)

The climate of Dublin, the capital of the Republic of Ireland, is oceanic, cool and humid throughout the year.
The city is located on the east coast of Ireland.
The average temperature ranges from 5 °C (41 °F) in January and February to 15.5 °C (60 °F) in July and August.
Here are the average temperatures.

Precipitation amounts to 750 millimeters (30 inches) per year. The city is located in the least rainy part of the island of Ireland, since part of the moisture coming from the ocean is released on the west side as rain, but the rains are frequent also in Dublin, although they are typically not abundant. In addition, they are well distributed over the seasons, and are frequent also in summer.
Here is the average precipitation.

Winter, from December to February, is quite cold: temperatures are not so low, but wind and humidity can increase the sensation of cold. The sky is often cloudy, and rainfall is frequent. Sometimes, intense Atlantic depressions can cause wind storms.
Snowfalls are relatively rare. Usually, cold spells are not intense and do not last long. On the coldest nights of the year, the temperature normally drops to around -5 °C (23 °F), however, it occasionally drops to lower values. At the airport, the temperature dropped to -7.5 °C (18.5 °F) in January 1945, to -8 °C (17.5 °F) in February 1956, to -6.5 °C (20.5 °F) in February 1963, to -8 °C (17.5 °F) in January 1979, to -7 °C (19.5 °F) in December 1981, in January 1982, in January 1985 and in December 1995, to -9 °C (16 °F) in January 2010, to -12 in December 2010, and to -8 °C (17.5 °F) in February 2015.
In the exceptional month of December 2010, it often snowed, and at the Casement Aerodrome, located on the western outskirts of the city and therefore at a greater distance from the sea, the temperature dropped to -15.4 °C (4.3 °F).

In spring, from March to May, the temperature slowly rises, and Atlantic fronts continue to affect this area more or less as in the rest of the year, although they are a bit less intense than in winter. In May, it is often still quite cold, especially in the first half of the month.

Summer, from June to August, is cool, wet and cloudy, with quite frequent rains. Sunny days, or at least those in which the sky is completely clear from dawn to dusk, are quite rare.
Hot days are rare: the temperature may not reach 25 °C (77 °F) for an entire summer, and in any case it almost never reaches 30 °C (86 °F). At the airport, the temperature reached 27.5 °C (81.5 °F) in July 1983, 28.5 °C (83.5 °F) in August 1990, 27 °C (80.5 °F) in August 1995, and 26.5 °C (79.5 °F) in July 2006. Within the city, in August 1990, the temperature reached 31 °C (88 °F) in Glasnevin and 30 °C (86 °F) in Merrion Square.

Autumn, from September to November, is gray, cloudy and rainy as in the rest of the year, and with each passing week, it gets progressively colder. In November, the wind is often moderate or strong.



The amount of sunshine in Dublin is not good. However, the (relatively) sunniest season is spring. Entire days with totally clear skies are rare: it's more likely for the sky to be partly cloudy. On average, there are 1,450 hours of sunshine per year. Here are the average sunshine hours per day.

The Irish Sea is cold all year round, in fact, it reaches at most 15/16 °C (59/61 °F) in the summer months. Here are the average sea temperatures.

Best Time

The best time to visit Dublin is the summer, from June to August, since it is the mildest of the year. July and August are the warmest months, or the least cool, however, it's better to bring a jacket, a sweatshirt and a sweater also in midsummer.