S
M
T
W
T
F
S
30
72°
50°
31
72°
49°
1
73°
50°
2
74°
50°
3
74°
50°
4
72°
48°
5
70°
46°
6
71°
45°
7
70°
46°
8
71°
50°
9
72°
47°
10
71°
46°
11
74°
47°
12
71°
47°
13
71°
52°
14
75°
52°
15
Hist. Avg.
82°
52°
16
Hist. Avg.
82°
52°
17
Hist. Avg.
82°
52°
18
Hist. Avg.
81°
52°
19
Hist. Avg.
81°
51°
20
Hist. Avg.
81°
51°
21
Hist. Avg.
81°
51°
22
Hist. Avg.
81°
51°
23
Hist. Avg.
81°
51°
24
Hist. Avg.
80°
51°
25
Hist. Avg.
80°
51°
26
Hist. Avg.
80°
50°
27
Hist. Avg.
80°
50°
28
Hist. Avg.
80°
50°
29
Hist. Avg.
79°
50°
30
Hist. Avg.
79°
50°
1
Hist. Avg.
79°
50°
2
Hist. Avg.
79°
49°
3
Hist. Avg.
78°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Big Sur
Big Sur's September 2026 forecast shows daily high temperatures ranging from 70° to 75°, with overnight lows between 45° and 52°. The average high for September is 72° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Big Sur. See also: October | November | December.
