S
M
T
W
T
F
S
1
78°
57°
2
66°
56°
3
66°
55°
4
65°
55°
5
76°
53°
6
78°
53°
7
78°
62°
8
90°
61°
9
69°
58°
10
67°
54°
11
67°
52°
12
84°
55°
13
88°
62°
14
79°
56°
15
69°
56°
16
76°
56°
17
95°
61°
18
82°
63°
19
82°
63°
20
87°
61°
21
75°
59°
22
71°
59°
23
69°
58°
24
70°
60°
25
68°
59°
26
73°
59°
27
73°
58°
28
68°
56°
29
76°
55°
30
69°
54°
31
69°
61°
1
67°
57°
2
68°
55°
3
76°
55°
4
87°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Santa Monica
Santa Monica's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March 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 March weather will actually feel in Santa Monica. See also: April | May | June.