S
M
T
W
T
F
S
26
42°
28°
27
40°
27°
28
42°
25°
29
38°
26°
30
38°
26°
31
39°
28°
1
40°
25°
2
40°
25°
3
39°
26°
4
38°
25°
5
39°
25°
6
38°
24°
7
38°
23°
8
39°
24°
9
38°
26°
10
39°
27°
11
40°
26°
12
40°
25°
13
41°
26°
14
39°
26°
15
40°
25°
16
38°
23°
17
37°
25°
18
Hist. Avg.
43°
37°
19
Hist. Avg.
43°
37°
20
Hist. Avg.
43°
37°
21
Hist. Avg.
42°
37°
22
Hist. Avg.
42°
36°
23
Hist. Avg.
42°
36°
24
Hist. Avg.
41°
36°
25
Hist. Avg.
41°
36°
26
Hist. Avg.
41°
36°
27
Hist. Avg.
41°
35°
28
Hist. Avg.
40°
35°
29
Hist. Avg.
40°
35°
30
Hist. Avg.
40°
34°
31
Hist. Avg.
39°
34°
1
Hist. Avg.
39°
34°
2
Hist. Avg.
39°
34°
3
Hist. Avg.
38°
33°
4
Hist. Avg.
38°
33°
5
Hist. Avg.
38°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Longyearbyen
Longyearbyen's August 2026 forecast shows daily high temperatures ranging from 37° to 42°, with overnight lows between 23° and 28°. The average high for August is 39° with an average low of 25°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Longyearbyen. See also: September | October | November.
