S
M
T
W
T
F
S
30
86°
76°
1
86°
74°
2
87°
79°
3
85°
79°
4
87°
77°
5
86°
77°
6
85°
78°
7
87°
78°
8
86°
76°
9
87°
77°
10
85°
76°
11
86°
73°
12
88°
76°
13
87°
79°
14
83°
77°
15
87°
76°
16
87°
75°
17
86°
77°
18
86°
78°
19
87°
77°
20
84°
75°
21
86°
79°
22
81°
74°
23
85°
75°
24
83°
74°
25
85°
78°
26
85°
76°
27
86°
74°
28
86°
75°
29
85°
78°
30
86°
77°
31
86°
76°
1
85°
75°
2
85°
75°
3
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Tamuning
Tamuning's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Tamuning. See also: January | February | March.