Dundalk weather forecast for 5 days

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

20 February 2026, Friday
+3°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
10.8
93%
1010
01:00
+4°C
10.1
93%
1010
02:00
+4°C
11.5
92%
1010
03:00
+5°C
13.3
90%
1009
04:00
+5°C
14.4
90%
1008
05:00
+5°C
18
91%
1006
06:00
+6°C
19.8
93%
1005
07:00
+7°C
26.6
93%
1004
08:00
+7°C
20.5
95%
1004
09:00
+8°C
15.5
95%
1004
10:00
+9°C
18
93%
1004
11:00
+11°C
18
89%
1004
12:00
+10°C
23.4
92%
1004
13:00
+9°C
29.9
86%
1004
14:00
+10°C
24.8
84%
1005
15:00
+11°C
26.3
78%
1006
16:00
+11°C
29.2
75%
1006
17:00
+10°C
24.8
75%
1007
18:00
+9°C
25.9
79%
1008
19:00
+9°C
19.4
87%
1008
20:00
+9°C
19.4
89%
1008
21:00
+8°C
25.2
91%
1009
22:00
+7°C
18.4
92%
1009
23:00
+7°C
11.9
95%
1009
21 February 2026, Saturday
+7°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
13
96%
1009
01:00
+7°C
9.7
96%
1009
02:00
+8°C
11.9
96%
1008
03:00
+10°C
28.1
92%
1009
04:00
+10°C
23.4
91%
1009
05:00
+10°C
22
92%
1009
06:00
+9°C
13.7
94%
1010
07:00
+9°C
9
96%
1010
08:00
+9°C
12.6
96%
1010
09:00
+10°C
11.5
95%
1009
10:00
+10°C
15.5
94%
1010
11:00
+10°C
14.4
94%
1009
12:00
+10°C
12.6
95%
1008
13:00
+11°C
19.4
95%
1007
14:00
+11°C
22.3
95%
1007
15:00
+12°C
22.3
94%
1006
16:00
+12°C
23.4
92%
1006
17:00
+12°C
24.1
93%
1006
18:00
+12°C
24.2
94%
1006
19:00
+12°C
24.4
94%
1006
20:00
+12°C
26.1
93%
1005
21:00
+11°C
27.5
93%
1005
22:00
+11°C
25.2
90%
1006
23:00
+9°C
22.2
92%
1006
22 February 2026, Sunday
+7°C / +10°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
21.8
93%
1006
01:00
+8°C
22.7
94%
1006
02:00
+8°C
24.2
93%
1006
03:00
+9°C
25.4
92%
1005
04:00
+9°C
26.9
92%
1005
05:00
+9°C
27.8
89%
1005
06:00
+8°C
26.3
91%
1005
07:00
+8°C
27
90%
1005
08:00
+8°C
23.7
90%
1006
09:00
+8°C
23.7
88%
1006
10:00
+9°C
26.2
85%
1005
11:00
+10°C
29
77%
1005
12:00
+10°C
28.6
77%
1004
13:00
+10°C
30.5
74%
1004
14:00
+10°C
31.9
77%
1003
15:00
+9°C
27.5
80%
1002
16:00
+9°C
30
78%
1002
17:00
+9°C
30.6
79%
1002
18:00
+8°C
26.9
81%
1002
19:00
+7°C
27.6
81%
1002
20:00
+7°C
28.3
80%
1001
21:00
+7°C
29.5
80%
1001
22:00
+7°C
30.5
78%
1001
23:00
+8°C
33.3
75%
1001
23 February 2026, Monday
+8°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
35
78%
1000
01:00
+8°C
35
78%
1000
02:00
+8°C
34.2
78%
1000
03:00
+8°C
33.5
79%
1001
04:00
+8°C
33.3
80%
1001
05:00
+8°C
33.1
82%
1001
06:00
+8°C
32.8
83%
1002
07:00
+8°C
31.5
83%
1003
08:00
+8°C
29.8
83%
1004
09:00
+8°C
28.6
82%
1005
10:00
+9°C
29.1
78%
1006
11:00
+10°C
30.1
73%
1007
12:00
+11°C
29.6
69%
1007
13:00
+11°C
26.6
67%
1008
14:00
+11°C
22.6
67%
1008
15:00
+11°C
18.5
68%
1008
16:00
+11°C
13.9
73%
1008
17:00
+10°C
11.6
82%
1007
18:00
+9°C
12.8
90%
1007
19:00
+9°C
13.2
94%
1007
20:00
+9°C
13.4
96%
1006
21:00
+10°C
15
97%
1006
22:00
+10°C
18
96%
1005
23:00
+10°C
21.7
94%
1005
24 February 2026, Tuesday
+9°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
24.2
93%
1005
01:00
+11°C
24.1
92%
1004
02:00
+10°C
22.9
91%
1004
03:00
+10°C
22
91%
1003
04:00
+10°C
22.1
91%
1003
05:00
+9°C
22.5
92%
1002
06:00
+9°C
22.6
92%
1002
07:00
+9°C
22
92%
1002
08:00
+10°C
21.1
91%
1001
09:00
+10°C
21
90%
1001
10:00
+10°C
22
89%
1000
11:00
+11°C
23.8
87%
1000
12:00
+11°C
25.2
85%
999
13:00
+11°C
26.3
83%
998
14:00
+11°C
27.4
82%
998
15:00
+12°C
27.7
81%
997
16:00
+11°C
26.7
82%
996
17:00
+11°C
25.1
83%
996
18:00
+11°C
23.8
84%
996
19:00
+11°C
23
86%
996
20:00
+11°C
22.7
88%
996
21:00
+11°C
22.2
89%
996
22:00
+11°C
21.6
90%
995
23:00
+11°C
21
90%
995


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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