S
M
T
W
T
F
S
30
87°
74°
31
88°
73°
1
85°
75°
2
88°
74°
3
88°
74°
4
87°
75°
5
88°
74°
6
87°
74°
7
88°
73°
8
86°
74°
9
87°
75°
10
87°
74°
11
88°
74°
12
88°
73°
13
87°
73°
14
88°
74°
15
87°
74°
16
87°
76°
17
86°
75°
18
84°
74°
19
85°
73°
20
84°
74°
21
87°
73°
22
86°
71°
23
85°
73°
24
86°
74°
25
86°
74°
26
86°
75°
27
84°
75°
28
84°
73°
29
Hist. Avg.
89°
71°
30
Hist. Avg.
89°
71°
1
Hist. Avg.
88°
71°
2
Hist. Avg.
88°
71°
3
Hist. Avg.
88°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in El Salvador
El Salvador's September 2026 forecast shows daily high temperatures ranging from 84° to 88°, with overnight lows between 71° and 76°. The average high for September is 86° with an average low of 74°. 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 El Salvador. See also: October | November | December.
