S
M
T
W
T
F
S
29
81°
69°
30
82°
68°
1
83°
69°
2
81°
68°
3
82°
70°
4
82°
69°
5
81°
69°
6
81°
68°
7
80°
69°
8
81°
69°
9
81°
68°
10
82°
69°
11
82°
69°
12
81°
68°
13
80°
69°
14
81°
69°
15
81°
68°
16
82°
69°
17
82°
68°
18
81°
68°
19
81°
66°
20
80°
67°
21
81°
68°
22
80°
67°
23
81°
68°
24
80°
68°
25
81°
67°
26
81°
68°
27
80°
68°
28
81°
67°
29
81°
67°
30
80°
63°
31
79°
67°
1
80°
67°
2
81°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lahaina
Lahaina's December 2026 forecast shows daily high temperatures ranging from 79° to 83°, with overnight lows between 63° and 70°. The average high for December is 81° with an average low of 68°. 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 Lahaina. See also: January | February | March.
