S
M
T
W
T
F
S
29
62°
41°
30
55°
37°
1
53°
38°
2
55°
43°
3
57°
44°
4
59°
44°
5
61°
43°
6
59°
42°
7
58°
43°
8
60°
43°
9
59°
41°
10
58°
42°
11
58°
39°
12
Hist. Avg.
55°
40°
13
Hist. Avg.
54°
39°
14
Hist. Avg.
54°
39°
15
Hist. Avg.
54°
39°
16
Hist. Avg.
54°
39°
17
Hist. Avg.
54°
39°
18
Hist. Avg.
53°
38°
19
Hist. Avg.
53°
38°
20
Hist. Avg.
53°
38°
21
Hist. Avg.
53°
38°
22
Hist. Avg.
52°
38°
23
Hist. Avg.
52°
38°
24
Hist. Avg.
52°
37°
25
Hist. Avg.
52°
37°
26
Hist. Avg.
52°
37°
27
Hist. Avg.
51°
37°
28
Hist. Avg.
51°
37°
29
Hist. Avg.
51°
37°
30
Hist. Avg.
51°
37°
31
Hist. Avg.
51°
36°
1
Hist. Avg.
50°
36°
2
Hist. Avg.
50°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Hiroshima-shi
Hiroshima-shi's December 2026 forecast shows daily high temperatures ranging from 53° to 62°, with overnight lows between 37° and 44°. The average high for December is 58° with an average low of 42°. 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 Hiroshima-shi. See also: January | February | March.