S
M
T
W
T
F
S
30
77°
66°
31
78°
68°
1
78°
68°
2
77°
67°
3
75°
66°
4
74°
66°
5
76°
68°
6
77°
68°
7
78°
67°
8
77°
68°
9
76°
68°
10
77°
67°
11
75°
68°
12
78°
69°
13
79°
68°
14
80°
67°
15
77°
68°
16
78°
66°
17
78°
66°
18
77°
65°
19
76°
63°
20
70°
66°
21
74°
67°
22
78°
66°
23
76°
65°
24
70°
66°
25
73°
67°
26
77°
67°
27
77°
66°
28
76°
66°
29
72°
64°
30
70°
63°
1
72°
64°
2
73°
65°
3
76°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Encinitas
Encinitas's September 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 63° and 69°. The average high for September is 76° with an average low of 66°. 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 Encinitas. See also: October | November | December.
