S
M
T
W
T
F
S
30
81°
53°
31
81°
58°
1
87°
49°
2
86°
49°
3
78°
50°
4
80°
51°
5
85°
55°
6
87°
57°
7
88°
56°
8
85°
50°
9
80°
50°
10
83°
54°
11
82°
56°
12
87°
51°
13
88°
51°
14
79°
56°
15
86°
57°
16
87°
54°
17
84°
47°
18
76°
48°
19
74°
51°
20
82°
50°
21
82°
52°
22
83°
52°
23
82°
51°
24
81°
51°
25
80°
50°
26
78°
51°
27
81°
51°
28
81°
50°
29
80°
49°
30
80°
49°
1
77°
41°
2
79°
39°
3
69°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Trinidad
Trinidad's September 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 39° and 58°. The average high for September is 82° with an average low of 51°. 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 Trinidad. See also: October | November | December.