Climate and monthly weather forecastWicklow, Ireland

The climate of Wicklow

Located in the heart of Ireland, Wicklow experiences a predominantly Marine west coast climate with warm summers, ascribed as Cfb in the Köppen climate classification. This geographical position facilitates mild, moist conditions throughout the year, with significant variations in climatic parameters.

Throughout the year, temperatures in Wicklow range from a low of 2.8°C (37°F) to a high of 21.2°C (70.2°F). The mercury soars to its peak in the warmer months of July and August with temperatures crossing the 19°C (66.2°F) mark. Conversely, the chill is most noticeable in the months from December to February when temperatures can plummet to below 3°C (37.4°F).

Rainfall occurs throughout the year, with the annual rainfall range oscillating between 61mm (2.4") and 119mm (4.69"). The months of October and November witness the maximum precipitation, with rainfall exceeding 110mm (4.33"). On the contrary, February records the least amount of rainfall at 62mm (2.44").

Sunshine and daylight operate on an escalating trend, starting from a low of 2.1 hours/day in December, and peaking to a high of 16.8 hours/day in June. Interestingly, there are around 10 days of rainfall, regardless of the month, highlighting the continuous mild, moist conditions of Wicklow.

The best time to visit Wicklow

Taking into account the climatological parameters, the optimal time to visit Wicklow would be between June and August. During this period, the temperature rises to a comfortable scale of 18.2°C (64.8°F) to 21.2°C (70.2°F). The long daylight hours of about 16 hours/day during this period allow for extended exploration and recreational activities. Additionally, rainfall remains relatively moderate during these months, with precipitation ranging between 67mm (2.64") and 72mm (2.83") over approximately 10 days.

The worst time to visit Wicklow

The cooler months of the year, between December and February, might not be the most welcoming period to visit Wicklow given the harsh weather condition. In this period, the average temperature falls as low as 2.8°C (37°F). The daylight also drastically reduces, averaging between 7.7 hours/day to 9.9 hours/day. Although rainfall is lower than the annual maximum, the dampness combined with low temperatures might not make for the most pleasant visiting conditions.

Spring weather in Wicklow

In Wicklow, spring spans from March to May and brings a rejuvenation in the weather. Temperatures steadily climb from 9.6°C (49.3°F) in March to 15.6°C (60.1°F) in May. Rainfall, on the other hand, witnesses a fluctuation between 64mm (2.52") in March and 66mm (2.6") in May. The ten days of rainfall during this period significantly dampen the surroundings, painting a picturesque lush landscape. Daylight and sunshine also witness considerable improvement, illuminating Wicklow for a good 11.9 hours/day to 15.8 hours/day.

Summer weather in Wicklow

With summer comes the warmest months of Wicklow from June to August. The average temperature ascends, ranging from 18.2°C (64.8°F) in June to 21.2°C (70.2°F) in August. Despite the mild temperature, rainfall remains persistent varying between 67mm (2.64") and 72mm (2.83") across 10 days. However, the long hours of sunshine, averaging from 6.3 hours/day to 5.1 hours/day, complement the prevailing temperatures, making the summer months pleasant and enjoyable.

Autumn weather in Wicklow

Wicklow's autumn season, lasting from September to November, witnesses a steady decline in temperatures from 18.1°C (64.6°F) to 11.7°C (53.1°F). Rainfall during this period surges, peaking at 119mm (4.69") in October. Around 13 days of rainfall in October and November transform the landscape into a spectacle of vibrant autumn hues. Daylight hours start to reduce, yet there is a substantial amount of sunshine from 4.5 hours/day to 2.8 hours/day to enjoy outdoor activities.

Winter weather in Wicklow

Winter in Wicklow arrives with a dip in temperatures, dropping to as low as 2.9°C (37.2°F) in December and 2.8°C (37°F) in February. Despite the chilly weather, rainfall remains steady during these months with approximately 86mm (3.39") in December to 62mm (2.44") in February spread across around ten to fourteen days. This period also sees reduced daylight and sunshine hours with as few as 7.7 hours/day in December and around 2.1 hours/day of sunshine.

Weather in January

Start of the year in Wicklow, Ireland, brings the winter weather with cool temperatures and frequent bouts of rainfall. The variation in temperature edges from a low of 2.9°C (37.2°F) to a high of 9.2°C (48.6°F). Being notorious for its high precipitation levels, January receives 86mm (3.39") of rainfall on average over 14 days. Weather in January »

Weather in February

February in Wicklow, Ireland, remains cool, marking a slight increase in temperature from the previous month. With highs reaching up to 9.6°C (49.3°F) and lows dwelling around 2.8°C (37°F), the winter gradually starts tapering off. Weather in February »

Weather in March

Entering spring in Wicklow, March bids farewell to winter's severity. Leading the seasonal transition, temperatures, on average, span from 3.4°C (38.1°F) to 11.2°C (52.2°F). Daylight starts to dominate the day more prominently, stretching up to 11.9 hours on average. Weather in March »

Weather in April

April in Wicklow, Ireland, truly embodies spring weather. A continued rise in temperature brings a comfortable climate, with the thermometer floating between 4.7°C (40.5°F) and 12.9°C (55.2°F). Daylight duration extends further, shining up to 14 hours of daylight on most days. Weather in April »

Weather in May

As Wicklow moves deeper into spring, May showcases a pleasant shift in climate. The temperature shows a considerable climb, ranging from a gentle 6.9°C (44.4°F) to a mild 15.6°C (60.1°F). Daylight gets remarkably extended to 15.8 hours, creating more opportunities for outdoor ventures. Weather in May »

Weather in June

Bringing the onset of summer, June introduces a warm and pleasant mood in Wicklow, Ireland. The temperatures see a significant rise, floating between 9.4°C (48.9°F) and 18.2°C (64.8°F). June delights its residents with the longest daylight hours of the year, affording a brilliant 16.8 hours, typically. Weather in June »

Weather in July

July in Wicklow marks the middle of the summer season. The month experiences temperatures fluctuating from 11.2°C (52.2°F) to 19.5°C (67.1°F). With the post-solstice sun lowering in the sky, daylight drops slightly to 16.3 hours. Weather in July »

Weather in August

The tail-end of summer in Wicklow, August, retains a similar temperature range from 11.3°C (52.3°F) to 21.2°C (70.2°F). August still enjoys extended daylight of about 14.7 hours, even while the sun begins to set a little earlier each day. Weather in August »

Weather in September

With the arrival of September, Wicklow begins to transition from the summer warmth to the milder autumn temperatures, fluctuating between 10°C (50°F) and 18.1°C (64.6°F). Daylight recedes to about 12.7 hours, and sunshine averages 4.5 hours per day. Weather in September »

Weather in October

October in Wicklow, Ireland, truly embraces the autumn season. A noticeable drop in temperatures sees the range shift from a cool 7.4°C (45.3°F) to a moderate 14.8°C (58.6°F). The daylight continues to shrink to approximately 10.6 hours, while the sunshine hours also reduce, averaging 3.3 hours per day. Weather in October »

Weather in November

Entering the penultimate month of the year, November brings a drastic switch to cooler conditions in Wicklow. The mercury slides further down between 4.8°C (40.6°F) to 11.7°C (53.1°F), signaling the early onset of winter. Daylight reduces to 8.7 hours and sunshine to 2.8 hours, creating noticeably shorter days and longer nights. Weather in November »

Weather in December

December marks the winter peak of the season in Wicklow, with the temperature fluctuating from a cold 3.1°C (37.6°F) to 9.2°C (48.6°F). The daylight dwindles down to 7.7 hours and the faint sunshine barely lasts 2.1 hours on an average day. Weather in December »