Climate and monthly weather forecastDundalk, Ireland
Climate and monthly weather forecast
The climate of Dundalk
Dundalk, a town nestled in Ireland, is characterized by a Marine west coast climate, with warm summers as per Köppen climate classification labeled as Cfb. The area's climatic parameters reflect an interesting pattern of relatively constant conditions yet slight fluctuations from month to month.Observations from monthly data exhibit the annual cycle of varied climatic factors. The temperature ranges from a maximum average of 17.3°C (63.1°F) in July to a minimum average of 2.2°C (36°F) in January. The town experiences more rainfall during the month of June with rainfall recorded at 21mm (0.83"). In contrast, the month with the least rainfall, February, records an average of 8mm (0.31").
Humidity shifts between 85% to 91% throughout the year, reaching the peak in December. The daylight hours span from a minimum of 7.5 hours in December to a peak of 17 hours in June, offering residents a broad spectrum of sunlight exposure. Nippy breezes are a common experience with wind speeds shifting from 13km/h (8.1mph) to 20.2km/h (12.6mph). Snowfall shows a minimal occurrence in the months of January and March, amounting to only 5mm (0.2") and 1mm (0.04") respectively.
The best time to visit Dundalk
Enhanced by the temperate Marine west coast climate, the best time to take a leisurely trip to Dundalk is in the summer months from June to August. These months are marked by mild temperatures, typically reaching up to 17.3°C (63.1°F) and dropping to 10.6°C (51.1°F) with increased daylight hours. During this period, visitors can benefit from longer daylight hours, around 17 hours in June and 16.5 hours in July. It allows for more significant outdoor activities to explore and enjoy the natural beauty Dundalk offers.The worst time to visit Dundalk
For those averse to colder temperatures and decreased daylight hours, the winter months between December to February may not offer the best visitation experience. During this period, the temperatures drop to an average low of 2.2°C (36°F), and daylight hours are reduced to 7.5 hours in December. Snowfall, although infrequent, does occur in January, reaching a minimal 5mm (0.2").Spring weather in Dundalk
During the spring months of March to May, Dundalk beholds a gradual warming trend with average high temperatures ranging from 8.8°C (47.8°F) to 13.5°C (56.3°F). The average low temperatures shift from 2.5°C (36.5°F) in March to 6.3°C (43.3°F) in May. This period is slightly wetter with rainfall reaching up to 12mm (0.47") in May, contributing to the lush greenery Dundalk is renowned for. This period also witnesses longer hours of daylight, from 11.9 hours in March to 16 hours in May, allowing for an ample window to appreciate the spring blossoms burgeoning across the town.Summer weather in Dundalk
Summers in Dundalk, extending from June to August, offer optimum conditions to enjoy this scenic landscape with manageable heat and generous sunlight. Temperatures during these months reach an average high of 17.3°C (63.1°F) in July while average lows dip to 10.6°C (51.1°F) in August. The rainfall during this period is inconsistent, peaking in June at 21mm (0.83"). However, the town is graced with an abundance of daylight, 17 hours in June, making summer an enticing time for tourist visitation.Autumn weather in Dundalk
Autumn, extending from September to November, sees a dip in temperatures and daylight hours reflected in the shifting hues of foliage. The average high temperatures decrease from 15.1°C (59.2°F) in September to 9°C (48.2°F) in November, while the average lows move from 9°C (48.2°F) to 4.5°C (40.1°F). Rainfall increases during this period, peaking to 17mm (0.67") in November.Winter weather in Dundalk
Winters in Dundalk, extending from December to February, are characterized by chilly temperatures and limited daylight. The temperatures fluctuate between an average high of 7.1°C (44.8°F) and an average low of 2.2°C (36°F). The precipitation in the form of snow in January is limited, with average snowfall reaching 5mm (0.2"). The daylight hours are at their minimum during this season, with 7.5 hours in December, offering a different, more introspective beauty of Dundalk in subdued light.Weather in January
January brings the coldest season in Dundalk, Ireland, with the temperatures fluctuating between 2.2°C (36°F) to 6.8°C (44.2°F). Amidst the chill, a significant percentage of cloud cover, calculated at 62%, conceals most of the sunlight, resulting in short days lasting only 8.1 hours. Weather in January »Weather in February
For Dundalk, February’s weather presents a slightly increased average temperature range, from 2.3°C (36.1°F) to 7.2°C (45°F). February experiences continued precipitation, with rainfall and light snow accounting for about 15mm (0.59") and 6mm (0.24") respectively, making it a quintessential winter month. Weather in February »Weather in March
The month of March marks the transition from winter to spring in Dundalk, seeing a moderate hike in average temperatures that range from 2.5°C (36.5°F) to 8.8°C (47.8°F). March ushers in longer daylight hours, with the sun staying out for almost 11.9 hours, making the days increasingly warmer. Weather in March »Weather in April
April is a month of noticeable change in Dundalk, as temperatures ascend from 4°C (39.2°F) to 11.1°C (52°F). Sunshine duration extends to an average of 6.4 hours daily owing to longer daylight hours, approximately 14.1 hours. Weather in April »Weather in May
May brings a significant increase in temperature in Dundalk, Ireland, varying from 6.3°C (43.3°F) to 13.5°C (56.3°F). Simultaneously, the duration of daylight further extends to nearly 16 hours, comforting the city with warmth and precedent to the forthcoming summer season. Weather in May »Weather in June
June in Dundalk witnesses temperatures ranging from 8.8°C (47.8°F) to 16.2°C (61.2°F), marking the onset of summer. The prevalent summer weather boasts the longest daylight duration, close to 17 hours, offering ample time for sightseeing and other outdoor activities. Weather in June »Weather in July
July is traditionally the warmest month in Dundalk, with temperature averages peaking between 10.7°C (51.3°F) and 17.3°C (63.1°F). A high level of cloud cover, at 66%, slightly dulls the summer vibrancy with sunlight duration shrinking to 5.7 hours. Weather in July »Weather in August
The month of August displays a slight drop in temperatures, which range from 10.6°C (51.1°F) and 17°C (62.6°F), indicating the drift towards autumn. Though the daylight hours reduce slightly to 14.8, Dundalk still enjoys a generous amount of sunlight. Weather in August »Weather in September
September brings further reduction in Dundalk's average temperatures from 9°C (48.2°F) to 15.1°C (59.2°F), affirming the season's shift towards fall. The hours of daylight decrease considerably to 12.7 hours, indicating the looming onset of winter. Weather in September »Weather in October
October witnesses a further decline in Dundalk's temperatures, oscillating between 7.2°C (45°F) and 12.5°C (54.5°F), as the city advances deeper into autumn. The daylight continues to shrink to an average of 10.5 hours, and a noticeable increase in wind speeds up to 16.1km/h (10mph) manifests the impending chill of the winter season. Weather in October »Weather in November
As November sets in, Dundalk gears up for winter, with the temperature range slowly descending from 4.5°C (40.1°F) to 9°C (48.2°F). The noticeable chill in the air comes along with shorter daylight hours that span 8.6 hours, and the sunshine period drying up to an average of 4.1 hours. Weather in November »Weather in December
In December, Dundalk immerses in full winter mode with the temperature dropping from 3°C (37.4°F) to 7.1°C (44.8°F). The city endures its year's shortest daylight period of 7.5 hours, and a minimal sunshine tenure of 4 hours, perpetuating a typical winter ambiance. Weather in December »Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month when Dundalk, Ireland, sees the average lowest temperatures, with a high of 6.8°C (44.2°F) and a low of 2.2°C (36°F).
January is the month with the least rainfall. Rain falls for 8.6 days and accumulates 8mm (0.31") of precipitation.
In Dundalk, during the entire year, the rain falls for 120.2 days and collects up to 161mm (6.34") of precipitation.
Months with snowfall are January through March and December.
Throughout the year, there are 4.4 snowfall days, and 13mm (0.51") of snow is accumulated.
February is the month with the most snowfall in Dundalk, Ireland. Snow falls for 1.3 days and accumulates 6mm (0.24") of snow.
The months with the least sunshine in Dundalk, Ireland, are February and October, with an average of 3.7h of sunshine.
February is the month with the lowest UV index in Dundalk, Ireland, with an average maximum UV index of 1.
March and April, with an average relative humidity of 85%, are the least humid months.
In Dundalk, snow does not fall in April through November.
The month with the most rainfall in Dundalk is June, when the rain falls for 12.7 days and typically aggregates up to 21mm (0.83") of precipitation.
With an average of 17h and 0min of daylight, June has the longest days of the year in Dundalk.
With an average of 6.7h of sunshine, June has the most sunshine of the year in Dundalk, Ireland.
June and August, with an average maximum UV index of 4, are months with the highest UV index in Dundalk, Ireland.
In Dundalk, July records the average highest temperatures, peaking at 17.3°C (63.1°F) and reaching a low of 10.7°C (51.3°F).
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from IST to GMT. Daylight Saving Time ends on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to IST.
The most humid month in Dundalk, Ireland, is December, with an average relative humidity of 91%.
The month with the shortest days in Dundalk, Ireland, is December, with an average of 7h and 30min of daylight.
Average temperature
Dundalk, Ireland
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (6.8°C).
The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure
Dundalk, Ireland
- Average pressure in January:
1010.6mbar - Average pressure in February:
1010.4mbar - Average pressure in March:
1013.7mbar - Average pressure in April:
1014.6mbar - Average pressure in May:
1015.7mbar - Average pressure in June:
1015.1mbar
- Average pressure in July:
1013.6mbar - Average pressure in August:
1012.2mbar - Average pressure in September:
1014.7mbar - Average pressure in October:
1012.1mbar - Average pressure in November:
1007.7mbar - Average pressure in December:
1010.1mbar
The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).
Average wind speed
Dundalk, Ireland
- Average wind speed in January:
20.2km/h - Average wind speed in February:
19.8km/h - Average wind speed in March:
18km/h - Average wind speed in April:
15.6km/h - Average wind speed in May:
15.1km/h - Average wind speed in June:
13km/h
- Average wind speed in July:
13km/h - Average wind speed in August:
14km/h - Average wind speed in September:
14.9km/h - Average wind speed in October:
16.1km/h - Average wind speed in November:
18.1km/h - Average wind speed in December:
19.8km/h
The windiest month (with the highest average wind speed) is January (20.2km/h).
The calmest months (with the lowest average wind speed) are June and July (13km/h).
Average humidity
Dundalk, Ireland
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are March and April (85%).
Average rainfall
Dundalk, Ireland
The wettest month (with the highest rainfall) is June (21mm).
The driest month (with the least rainfall) is January (8mm).
Average rainfall days
Dundalk, Ireland
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.2 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
10 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
7 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is September (7 days).
Average snowfall
Dundalk, Ireland
The month with the highest snowfall is February (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Dundalk, Ireland
- Average snowfall days in January:
1.4 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Dundalk, Ireland
- Average daylight in January:
8h and 6min - Average daylight in February:
9h and 48min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 6min - Average daylight in May:
16h and 0min - Average daylight in June:
17h and 0min
- Average daylight in July:
16h and 30min - Average daylight in August:
14h and 48min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 30min - Average daylight in November:
8h and 36min - Average daylight in December:
7h and 30min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
3h and 42min - Average sunshine in March:
4h and 54min - Average sunshine in April:
6h and 24min - Average sunshine in May:
6h and 12min - Average sunshine in June:
6h and 42min
- Average sunshine in July:
5h and 42min - Average sunshine in August:
5h and 42min - Average sunshine in September:
5h and 36min - Average sunshine in October:
3h and 42min - Average sunshine in November:
4h and 6min - Average sunshine in December:
4h and 0min
The month with the most sunshine is June (Average sunshine: 6h and 42min).
The months with the least sunshine are February and October (Average sunshine: 3h and 42min).
Average sunshine days
Dundalk, Ireland
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
18 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Dundalk, Ireland
The months with the highest UV index are June and August (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Dundalk, Ireland
The months with the most cloud cover are July and August (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility
Dundalk, Ireland
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
