S
M
T
W
T
F
S
29
47°
37°
30
51°
39°
1
53°
40°
2
52°
38°
3
54°
37°
4
46°
35°
5
51°
31°
6
50°
36°
7
51°
34°
8
43°
31°
9
42°
27°
10
39°
26°
11
38°
32°
12
40°
32°
13
42°
28°
14
38°
25°
15
41°
27°
16
39°
30°
17
42°
31°
18
40°
33°
19
48°
30°
20
45°
20°
21
39°
21°
22
35°
23°
23
32°
28°
24
37°
27°
25
47°
25°
26
46°
20°
27
37°
20°
28
34°
21°
29
35°
21°
30
37°
31°
31
45°
26°
1
50°
20°
2
43°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dublin
Dublin's December 2026 forecast shows daily high temperatures ranging from 32° to 54°, with overnight lows between 17° and 40°. The average high for December is 43° with an average low of 29°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Dublin. See also: January | February | March.
