S
M
T
W
T
F
S
30
90°
61°
31
90°
64°
1
91°
66°
2
93°
66°
3
99°
70°
4
99°
68°
5
93°
77°
6
97°
73°
7
97°
72°
8
93°
70°
9
73°
43°
10
76°
51°
11
83°
53°
12
85°
58°
13
88°
62°
14
92°
64°
15
91°
60°
16
87°
59°
17
83°
58°
18
85°
57°
19
84°
60°
20
84°
59°
21
82°
57°
22
75°
56°
23
78°
58°
24
77°
56°
25
76°
55°
26
75°
55°
27
75°
54°
28
76°
55°
29
76°
50°
30
69°
47°
1
69°
47°
2
72°
50°
3
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Encinillas
Encinillas's September 2026 forecast shows daily high temperatures ranging from 69° to 92°, with overnight lows between 43° and 64°. The average high for September is 79° with an average low of 55°. 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 Encinillas. See also: October | November | December.
