S
M
T
W
T
F
S
1
63°
41°
2
57°
45°
3
54°
46°
4
54°
46°
5
52°
45°
6
54°
46°
7
57°
48°
8
54°
39°
9
48°
37°
10
43°
34°
11
54°
41°
12
54°
46°
13
55°
46°
14
50°
36°
15
54°
34°
16
69°
47°
17
59°
46°
18
57°
50°
19
57°
48°
20
55°
48°
21
52°
34°
22
54°
30°
23
54°
32°
24
61°
48°
25
54°
37°
26
55°
30°
27
59°
30°
28
55°
37°
29
52°
34°
30
59°
32°
31
59°
32°
1
52°
41°
2
55°
41°
3
59°
39°
4
68°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Oceanside
Oceanside'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 Oceanside. See also: April | May | June.