S
M
T
W
T
F
S
30
72°
54°
31
72°
58°
1
73°
60°
2
76°
61°
3
80°
55°
4
80°
60°
5
78°
53°
6
71°
54°
7
78°
59°
8
70°
51°
9
69°
55°
10
71°
59°
11
67°
53°
12
68°
57°
13
69°
57°
14
67°
52°
15
65°
49°
16
66°
48°
17
66°
52°
18
Hist. Avg.
71°
53°
19
Hist. Avg.
71°
53°
20
Hist. Avg.
70°
53°
21
Hist. Avg.
70°
53°
22
Hist. Avg.
70°
52°
23
Hist. Avg.
69°
52°
24
Hist. Avg.
69°
52°
25
Hist. Avg.
69°
52°
26
Hist. Avg.
68°
52°
27
Hist. Avg.
68°
51°
28
Hist. Avg.
68°
51°
29
Hist. Avg.
67°
51°
30
Hist. Avg.
67°
51°
1
Hist. Avg.
66°
50°
2
Hist. Avg.
66°
50°
3
Hist. Avg.
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Burien
Burien's September 2026 forecast shows daily high temperatures ranging from 65° to 80°, with overnight lows between 48° and 61°. The average high for September is 71° 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 Burien. See also: October | November | December.