Dundalk weather forecast for 5 days

Dundalk weather forecast for 5 days. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

21 October 2026, Wednesday
+3°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
20.2
86%
996
01:00
+12°C
16.2
91%
994
02:00
+11°C
15.8
92%
994
03:00
+11°C
13.7
96%
993
04:00
+11°C
10.4
98%
993
05:00
+9°C
24.8
93%
993
06:00
+8°C
29.9
90%
993
07:00
+7°C
32.4
87%
994
08:00
+7°C
31
85%
995
09:00
+7°C
32.4
82%
996
10:00
+7°C
30.2
82%
997
11:00
+8°C
25.2
76%
998
12:00
+8°C
26.3
76%
998
13:00
+10°C
20.2
72%
999
14:00
+10°C
25.6
61%
999
15:00
+10°C
34.6
59%
1000
16:00
+10°C
25.2
62%
1001
17:00
+9°C
19.4
67%
1001
18:00
+8°C
12.2
70%
1002
19:00
+6°C
10.1
85%
1002
20:00
+5°C
9.7
87%
1002
21:00
+4°C
6.8
91%
1002
22:00
+3°C
5
92%
1002
23:00
+3°C
4
92%
1002
22 October 2026, Thursday
+2°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
5
94%
1002
01:00
+3°C
5
96%
1002
02:00
+2°C
4.7
97%
1002
03:00
+3°C
7.2
97%
1003
04:00
+4°C
5.8
98%
1003
05:00
+3°C
5.8
99%
1003
06:00
+3°C
7.6
97%
1003
07:00
+2°C
7.6
98%
1003
08:00
+3°C
6.1
96%
1004
09:00
+4°C
10.4
95%
1004
10:00
+5°C
2.2
91%
1005
11:00
+7°C
4
88%
1005
12:00
+8°C
8.6
83%
1005
13:00
+10°C
9.4
76%
1004
14:00
+12°C
9.7
64%
1004
15:00
+12°C
11.2
61%
1003
16:00
+12°C
10.1
63%
1002
17:00
+10°C
9
74%
1002
18:00
+8°C
7.6
81%
1001
19:00
+8°C
6.8
79%
1001
20:00
+8°C
7.6
81%
1000
21:00
+7°C
6.8
80%
999
22:00
+9°C
8.6
72%
998
23:00
+9°C
10.1
79%
997
23 October 2026, Friday
+6°C / +10°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
11.2
85%
997
01:00
+9°C
14
87%
996
02:00
+8°C
19.1
91%
995
03:00
+8°C
20.2
91%
995
04:00
+8°C
20.2
91%
995
05:00
+7°C
24.5
91%
996
06:00
+7°C
25.6
88%
997
07:00
+7°C
26.6
89%
998
08:00
+7°C
28.5
88%
998
09:00
+6°C
28.1
89%
999
10:00
+7°C
29.4
84%
999
11:00
+8°C
31.7
75%
999
12:00
+9°C
34.2
65%
1000
13:00
+10°C
35.3
58%
1001
14:00
+10°C
34.2
56%
1002
15:00
+9°C
32
58%
1003
16:00
+9°C
29.9
59%
1003
17:00
+9°C
27.7
59%
1004
18:00
+8°C
25.2
59%
1005
19:00
+8°C
22.7
62%
1006
20:00
+7°C
19.8
70%
1006
21:00
+6°C
16.9
80%
1007
22:00
+6°C
14.8
88%
1007
23:00
+6°C
13.7
91%
1007
24 October 2026, Saturday
+6°C / +14°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+6°C
13.7
91%
1007
01:00
+6°C
13.3
91%
1006
02:00
+6°C
12.6
91%
1006
03:00
+6°C
12.2
92%
1005
04:00
+6°C
12.6
92%
1004
05:00
+7°C
14.8
93%
1002
06:00
+7°C
18
94%
1000
07:00
+8°C
20.9
94%
998
08:00
+8°C
23
94%
995
09:00
+9°C
25.2
93%
992
10:00
+10°C
27
93%
989
11:00
+11°C
29.2
94%
986
12:00
+13°C
31
94%
983
13:00
+14°C
33.1
92%
982
14:00
+13°C
35.3
83%
981
15:00
+12°C
37.4
71%
981
16:00
+11°C
38.9
62%
982
17:00
+10°C
38.5
60%
982
18:00
+9°C
37.4
62%
982
19:00
+8°C
37.1
63%
982
20:00
+8°C
37.4
63%
982
21:00
+8°C
38.5
63%
982
22:00
+8°C
40
62%
982
23:00
+9°C
42.5
59%
982
25 October 2026, Sunday
+5°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
45.4
56%
983
01:00
+9°C
47.2
54%
983
02:00
+9°C
47.5
55%
984
03:00
+9°C
46.8
57%
985
04:00
+9°C
46.1
60%
986
05:00
+9°C
45.4
65%
987
06:00
+8°C
44.6
72%
988
07:00
+8°C
43.6
77%
989
08:00
+8°C
41.4
81%
991
09:00
+8°C
38.9
84%
993
10:00
+8°C
37.1
84%
994
11:00
+9°C
37.1
81%
996
12:00
+10°C
38.2
76%
997
13:00
+10°C
38.5
71%
998
14:00
+10°C
37.4
67%
1000
15:00
+11°C
35.6
63%
1001
16:00
+11°C
33.5
61%
1003
17:00
+10°C
30.2
62%
1004
18:00
+9°C
26.6
65%
1005
19:00
+8°C
23
68%
1006
20:00
+8°C
19.8
72%
1007
21:00
+7°C
16.6
76%
1007
22:00
+6°C
13
81%
1008
23:00
+5°C
8.6
87%
1008


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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