S
M
T
W
T
F
S
28
60°
45°
29
59°
43°
30
60°
46°
1
60°
47°
2
61°
48°
3
57°
49°
4
57°
49°
5
61°
48°
6
58°
46°
7
57°
48°
8
57°
44°
9
58°
47°
10
58°
46°
11
57°
47°
12
57°
44°
13
58°
44°
14
57°
43°
15
57°
44°
16
58°
44°
17
57°
47°
18
58°
46°
19
61°
48°
20
61°
43°
21
57°
45°
22
58°
48°
23
60°
49°
24
60°
49°
25
61°
48°
26
61°
44°
27
57°
45°
28
57°
44°
29
56°
43°
30
57°
44°
31
57°
45°
1
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in South Island
South Island's July 2026 forecast shows daily high temperatures ranging from 56° to 61°, with overnight lows between 43° and 49°. The average high for July is 58° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in South Island. See also: August | September | October.
