S
M
T
W
T
F
S
29
50°
38°
30
50°
36°
1
56°
32°
2
49°
36°
3
50°
23°
4
57°
22°
5
42°
23°
6
41°
22°
7
44°
26°
8
43°
22°
9
42°
19°
10
40°
19°
11
38°
20°
12
38°
20°
13
39°
21°
14
40°
21°
15
41°
22°
16
43°
25°
17
44°
30°
18
43°
31°
19
42°
28°
20
42°
26°
21
40°
27°
22
40°
23°
23
41°
30°
24
43°
20°
25
42°
20°
26
35°
19°
27
38°
18°
28
37°
20°
29
39°
21°
30
40°
22°
31
46°
15°
1
Hist. Avg.
40°
20°
2
Hist. Avg.
40°
20°
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 35° to 57°, with overnight lows between 15° and 38°. The average high for December is 43° with an average low of 24°. 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.
