S
M
T
W
T
F
S
26
76°
67°
27
76°
69°
28
78°
66°
29
78°
67°
30
79°
69°
31
78°
64°
1
77°
68°
2
79°
69°
3
80°
63°
4
81°
62°
5
76°
63°
6
76°
63°
7
78°
62°
8
76°
64°
9
78°
67°
10
80°
67°
11
78°
65°
12
81°
67°
13
79°
68°
14
80°
68°
15
78°
67°
16
81°
61°
17
81°
60°
18
74°
60°
19
74°
61°
20
73°
62°
21
75°
59°
22
74°
64°
23
75°
65°
24
77°
67°
25
80°
66°
26
81°
57°
27
79°
58°
28
71°
57°
29
71°
58°
30
72°
63°
31
73°
64°
1
78°
64°
2
78°
63°
3
77°
59°
4
77°
63°
5
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Harwich
South Harwich's August 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 57° and 69°. The average high for August is 77° with an average low of 64°. 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 South Harwich. See also: September | October | November.
