The climate of Dublin
Located on the east coast of
Ireland,
Dublin is recognised by a Cfb classification under the Köppen climate system, indicating a marine west coast climate with a warm summer. This climate type results in mild temperatures throughout the year and no dry seasons.
Temperature fluctuations throughout the year are moderate. During the year, high temperatures range from 8.8°C (47.8°F) in
January to 20.2°C (68.4°F) in
July, while low temperatures vary from 3.9°C (39°F) in January and
February to 13.5°C (56.3°F) in July. Rainfall is a constant companion for Dublin, with a monthly average range between 46mm (1.81") in February and 76mm (2.99") in
October. The occurrence of precipitation ranges from 9 to 12 days monthly.
Dublin's daylight hours extend from 7.6 hours in
December to 16.9 hours in
June, bearing a direct impact on the hours of sunshine enjoyed. December offers the fewest hours of sunshine, a stark 1.7 hours, increasing gradually to the maximum 6.3 hours in
May. December and January record the lowest UV index, rising up to 6 between June and July.
If water activities pique the interest, it would be valuable to note that the coldest sea temperatures of 8.4°C (47.1°F) occur in
March, warming up to 14.9°C (58.8°F) in
August before plunging again. The unique pattern that Dublin's weather follows is its consistent precipitation throughout the year, with no distinct dry period.
The best time to visit Dublin
Given the mild, yet consistent, rainfall and relatively warmer temperatures, the period from
June to
August emerges as the best time to visit
Dublin. During this period, high temperatures maintain at around 18°C (64.4°F) to 20.2°C (68.4°F) and low temperatures at 11.6°C (52.9°F) to 13.5°C (56.3°F). The sea reaches its warmest temperatures between 14.1°C (57.4°F) and 14.9°C (58.8°F), making it pleasant for water activities. With daylight hours extending up to 16.9 hours and the UV index reaching its peak, visitors can enjoy extended sightseeing and outdoor activities.
The worst time to visit Dublin
Being a city that experiences consistent rainfall, determining the worst time to visit can be subjective. However, considering higher levels of rainfall, fewer daylight hours, and lower temperatures, the period from
October to
January may offer more challenges to visitors. During these months temperatures plummet to lows between 3.9°C (39°F) to 8.8°C (47.8°F) with highs that barely reach double digits. Sea temperatures drop to between 9.6°C (49.3°F) to 13.1°C (55.6°F). Furthermore, the soaking showers increase, reaching up to 76mm (2.99") in October with the advent of autumn.
Spring weather in Dublin
Instruments denote a moderate warming trend during spring, with high temperatures increasing from 8.9°C (48°F) in
February to 15.2°C (59.4°F) in
May and low temperatures escalating from 3.9°C (39°F) to 9°C (48.2°F). Rainfall fluctuates moderately, with
March receiving around 52mm (2.05"), decreasing slightly to 50mm (1.97") in
April, before increasing to 58mm (2.28") in May. Sea temperatures record a slow increase from 8.8°C (47.8°F) in February to 10.4°C (50.7°F) by May.
Summer weather in Dublin
The summer months offer the warmest weather, presenting high temperatures ranging from 18°C (64.4°F) in
June to 20.2°C (68.4°F) in
July, then slightly cooling to 19.6°C (67.3°F) in
August. Correspondingly, low temperatures rise from 11.6°C (52.9°F) in June to 13.5°C (56.3°F) in July then maintain at 13.3°C (55.9°F) in August. The rainfall levels moderately, reaching a mean of 59mm (2.32") in June, minimising to 51mm (2.01") in July and escalating to 65mm (2.56") by August. Sea temperatures provide comfort between 12.3°C (54.1°F) to 14.9°C (58.8°F).
Autumn weather in Dublin
Autumn manifests a cooling trend with high temperatures dropping from 17.3°C (63.1°F) in
September to 11°C (51.8°F) in
November. Low temperatures oscillate between 11.4°C (52.5°F) to 6.2°C (43.2°F) in the same period. Rainfall surges from 57mm (2.24") in September to 69mm (2.72") in November. A drop in sea temperature is recorded from 14.8°C (58.6°F) to 13.1°C (55.6°F) through the autumn months.
Winter weather in Dublin
Winter experiences the chilliest conditions in
Dublin, with high temperatures averaging between 9.3°C (48.7°F) to 8.8°C (47.8°F) and low temperatures fluctuating from 4.5°C (40.1°F) to 3.9°C (39°F). Rainfall during winter is notably consistent, indicating between 69mm (2.72") to 63mm (2.48"). Sea temperatures sink to their lowest, continuing from 13.1°C (55.6°F) in
November, meandering through winter to 9.6°C (49.3°F) by the end of
January.
Weather in January
The chill of winter grips
Dublin in the month of
January, making it one of the coldest times of the year. The low temperatures can reach 3.9°C (39°F), particularly during early morning and late-night hours. Although daylight is limited, city experiences a unique blend of winter charm.
Weather in January »Weather in February
As
February strides in, the weather in
Dublin sees a minor lift in temperatures from its predecessor,
January. Still firmly in winter's grasp, there are frequent spells of rain, with rainfall days climbing to 10 in this month.
Weather in February »Weather in March
Welcoming
March means bidding adieu to the harshest winter periods and greeting the hints of an approaching spring in
Dublin. The temperatures, on average, hover around 10.7°C (51.3°F), injecting a mild yet welcome warmth into the climate.
Weather in March »
Weather in April
In
April,
Dublin starts to truly shake off winter's cold hand as temperatures become increasingly mild. With the low temperature sitting at a fairly comfortable 6.4°C (43.5°F), the city's flora blossoms, mirroring the onset of spring.
Weather in April »Weather in May
The month of
May symbolizes the commencement of the warm season within
Dublin, with the weather getting noticeably warmer. Temperatures exhibit a comforting increase to a high of around 15.2°C (59.4°F). Despite the warmth, rainfall persists, a remnant of Dublin’s temperate oceanic climate.
Weather in May »Weather in June
June is when the summer season truly comes into effect in
Dublin, with temperatures ticking upward and daylight hours peaking. The month sees an inviting sea temperature of 12.3°C (54.1°F), implying the ideal time for coastal escapades.
Weather in June »
Weather in July
July proudly represents the crux of summer within
Dublin, bringing with it welcoming waves of warmth. The cities’ sea temperature peaks at 14.1°C (57.4°F) during this couple of months offering idyllic sunset beach walks. What is a Dublin summer without a splash of Irish rain? Therefore, despite the summer peeking, be prepared to face the occasional yet inevitable rain showers.
Weather in July » Weather in August
August continues the reign of summer in
Dublin, offering a mild weather and a pleasant temperature spectrum. While the average high temperature slightly drops to 19.6°C (67.3°F), the radiance of summer remains undisturbed. Evening strolls along the sea coast become even more inviting as the sea temperature reaches a delightful high.
Weather in August » Weather in September
Dublin in
September witnesses a gradual descent in temperature, indicating the onset of the autumn season. Yet, the sea maintains a comfortable 14.8°C (58.6°F) that blends seamlessly with the cooling air. As mildness infuses the air, the city changes hue, shrugging on the colors of fall.
Weather in September »
Weather in October
In
October, autumn flaunts its full form in
Dublin, modulating the weather into a cooler existence. The curtain of rain raises higher to 76mm (2.99"), the highest rainfall recorded across the months. As the browns and reds of fall pervade the city's landscapes, the coolness seeping into the air becomes more apparent.
Weather in October »Weather in November
November signifies the advent of winter, with the temperature taper dropping, making the ambient air noticeably chillier. Rainfall measures up to 69mm (2.72") within this period, contributing to the colder air. As night descends earlier and the daylight hours reduce, the winter vibe intensifies.
Weather in November » Weather in December
With
December, winter is in full swing in
Dublin, and temperatures keep to the colder side of the spectrum. The city's low temperature sinks to around 4.5°C (40.1°F), the lowest during the year. Clouds often gather, adding to the overcast atmosphere and scaling up the winter charm.
Weather in December »