Dundalk hourly weather forecast

Hourly weather forecast for Dundalk. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

31 August 2026, Monday
+13°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
13.7
96%
1001
01:00
+14°C
13.7
93%
1002
02:00
+14°C
12.2
93%
1003
03:00
+14°C
11.9
93%
1003
04:00
+14°C
14.4
94%
1004
05:00
+14°C
14
94%
1005
06:00
+14°C
15.5
89%
1006
07:00
+14°C
21.2
90%
1007
08:00
+14°C
19.4
85%
1008
09:00
+14°C
19.4
82%
1009
10:00
+15°C
23
75%
1010
11:00
+15°C
23.4
71%
1011
12:00
+16°C
19.8
62%
1011
13:00
+17°C
19.4
58%
1012
14:00
+17°C
16.6
57%
1012
15:00
+18°C
20.2
56%
1013
16:00
+17°C
18.7
58%
1013
17:00
+17°C
17.6
59%
1014
18:00
+15°C
16.2
72%
1014
19:00
+16°C
10.1
76%
1014
20:00
+15°C
10.4
80%
1015
21:00
+14°C
10.1
86%
1015
22:00
+13°C
9.4
88%
1015
23:00
+13°C
11.9
87%
1015
01 September 2026, Tuesday
+12°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
10.8
89%
1015
01:00
+12°C
11.2
90%
1015
02:00
+13°C
12.6
87%
1015
03:00
+13°C
13
89%
1015
04:00
+13°C
12.6
91%
1015
05:00
+13°C
13.7
92%
1014
06:00
+13°C
11.2
94%
1014
07:00
+13°C
14
92%
1015
08:00
+14°C
15.1
91%
1015
09:00
+15°C
15.5
86%
1015
10:00
+16°C
19.1
80%
1015
11:00
+17°C
19.1
76%
1015
12:00
+18°C
21.2
71%
1014
13:00
+18°C
19.8
69%
1015
14:00
+18°C
18.4
75%
1014
15:00
+19°C
16.6
72%
1014
16:00
+17°C
22.7
84%
1014
17:00
+17°C
20.9
83%
1014
18:00
+17°C
16.9
86%
1014
19:00
+17°C
12.2
83%
1014
20:00
+16°C
9.7
87%
1014
21:00
+15°C
14.8
91%
1014
22:00
+15°C
10.4
93%
1014
23:00
+15°C
6.1
95%
1014
02 September 2026, Wednesday
+14°C / +21°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
5.8
95%
1014
01:00
+15°C
7.6
95%
1013
02:00
+15°C
8.3
96%
1013
03:00
+14°C
7.6
97%
1012
04:00
+14°C
8.3
98%
1011
05:00
+14°C
10.4
97%
1010
06:00
+15°C
14.4
98%
1009
07:00
+14°C
10.1
98%
1008
08:00
+15°C
13.1
96%
1007
09:00
+16°C
10.6
96%
1007
10:00
+16°C
9
98%
1007
11:00
+18°C
10.1
97%
1006
12:00
+19°C
12.6
94%
1006
13:00
+20°C
15.1
91%
1006
14:00
+20°C
18
86%
1006
15:00
+21°C
21.2
81%
1006
16:00
+21°C
22.7
78%
1007
17:00
+20°C
21.6
79%
1007
18:00
+20°C
19.1
82%
1007
19:00
+19°C
17.3
85%
1007
20:00
+19°C
17.6
87%
1007
21:00
+18°C
18.7
89%
1007
22:00
+17°C
19.4
90%
1008
23:00
+16°C
19.1
90%
1008
03 September 2026, Thursday
+13°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
18.4
90%
1009
01:00
+14°C
17.6
89%
1010
02:00
+14°C
16.6
87%
1010
03:00
+14°C
15.1
85%
1011
04:00
+14°C
14
84%
1011
05:00
+14°C
13
86%
1011
06:00
+13°C
11.9
90%
1012
07:00
+13°C
11.9
92%
1012
08:00
+13°C
13
91%
1012
09:00
+14°C
14.8
88%
1013
10:00
+15°C
16.9
85%
1013
11:00
+16°C
19.1
81%
1013
12:00
+17°C
21.6
76%
1013
13:00
+18°C
23
73%
1013
14:00
+18°C
23
72%
1013
15:00
+18°C
22
73%
1013
16:00
+18°C
20.2
75%
1013
17:00
+18°C
17.6
77%
1013
18:00
+18°C
14.8
80%
1012
19:00
+17°C
12.2
83%
1012
20:00
+16°C
10.8
87%
1012
21:00
+15°C
9.7
92%
1012
22:00
+15°C
8.6
95%
1011
23:00
+14°C
7.2
96%
1010
04 September 2026, Friday
+13°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
6.1
96%
1008
01:00
+14°C
5.8
96%
1006
02:00
+14°C
6.5
96%
1005
03:00
+14°C
8.3
96%
1005
04:00
+14°C
9.7
96%
1005
05:00
+13°C
10.8
96%
1006
06:00
+13°C
11.9
96%
1007
07:00
+14°C
13.3
95%
1008
08:00
+14°C
15.1
92%
1008
09:00
+15°C
16.9
88%
1009
10:00
+15°C
19.1
83%
1009
11:00
+16°C
21.2
76%
1009
12:00
+17°C
23.4
67%
1009
13:00
+18°C
24.8
61%
1009
14:00
+18°C
24.8
59%
1009
15:00
+18°C
24.1
59%
1009
16:00
+18°C
23
61%
1010
17:00
+18°C
21.6
65%
1010
18:00
+17°C
19.8
70%
1010
19:00
+16°C
17.6
75%
1011
20:00
+15°C
15.5
80%
1011
21:00
+15°C
13.3
86%
1012
22:00
+14°C
11.5
90%
1012
23:00
+13°C
10.1
93%
1013


Climate Characteristics of Dundalk

General Overview

Dundalk features a maritime temperate climate. Due to its location on the east coast, the city enjoys relative protection from the Atlantic Ocean's heavy winds and rains, making it one of Ireland's drier regions. Nevertheless, its proximity to the Irish Sea ensures high humidity and volatile weather throughout the year.

Summer Season and Warm Months

Summer in Dundalk is pleasant and very comfortable. Average daytime temperatures range between 18°C and 20°C (64-68°F). This is an excellent time for walking along the bay and visiting nearby historical sites, though brief and passing light rain showers should be expected. Long daylight hours allow for enjoying the outdoors until late.

Winter Season and Precipitation

Winter in Dundalk is cool, grey, and humid. Daytime temperatures average around 8°C (46°F), while nighttime lows drop to 2°C (36°F) on average. Snow is quite a rare event within the city and tends to melt quickly. Rain is a constant feature, but it is typically a drizzle or light rain rather than severe storms as seen on the west coast.

Transition Seasons and Special Phenomena

The transition seasons in Dundalk are marked by rapid changes and a sense of freshness. Spring (March-May) brings the driest period of the year with vivid green blooms, while autumn features brisk winds from the Irish Sea and beautiful foliage colors. Due to the frequent mix of passing sun and light rain, rainbows are a very common sight in the area.

 

Weather in Dundalk by Month

January

A cold and wet month. Average temperatures are around 8°C during the day and drop to 2°C at night. Most days are heavily cloudy with very short daylight hours.

February

The weather remains similar to January with a daytime average of about 8°C. Sea winds can be cold, but there is a gradual increase in sunshine hours throughout the month.

March

The beginning of spring. Days lengthen and the average daytime temperature rises to about 10°C. This is considered one of the relatively drier months of the year in this area.

April

Temperatures climb to approximately 12°C during the day. A very volatile month where you can experience sun and light rain interchangeably within short periods.

May

A very pleasant month with fresh blooms and a daytime average of 15°C. The weather becomes ideal for hiking in the nature surrounding the city.

June

Summer officially begins with a daytime average of about 18°C. Daylight hours are at their peak, and evenings are very pleasant and bright.

July

One of the warmest months of the year, averaging about 20°C during the day. The weather is very comfortable for sightseeing, but it's always wise to keep a light raincoat handy.

August

Very similar to July with daytime temperatures around 20°C. It is a relatively humid month, and evenings begin to cool slightly toward its end.

September

Autumn begins with an average daytime temperature of 17°C. The air is very pleasant, and foliage begins to appear in urban parks.

October

A cooler and wetter month with about 14°C during the day. Sea winds strengthen, and the city is covered in vivid autumn shades.

November

Temperatures drop to a daytime average of 10°C. Grey and rainy days become more frequent as winter approaches.

December

Winter returns with about 8°C during the day. The festive atmosphere and lights in the city center compensate for the short, cool days.

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