S
M
T
W
T
F
S
28
56°
48°
29
54°
47°
30
54°
46°
1
56°
45°
2
53°
42°
3
53°
45°
4
80°
47°
5
63°
45°
6
58°
50°
7
55°
48°
8
54°
48°
9
53°
48°
10
53°
47°
11
55°
50°
12
56°
51°
13
54°
50°
14
57°
51°
15
54°
48°
16
54°
49°
17
58°
48°
18
57°
51°
19
57°
52°
20
58°
51°
21
58°
51°
22
59°
50°
23
59°
52°
24
61°
52°
25
61°
51°
26
58°
50°
27
55°
46°
28
56°
47°
29
56°
46°
30
55°
50°
31
56°
50°
1
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Reykjavik
Reykjavik's July 2026 forecast shows daily high temperatures ranging from 54° to 61°, with overnight lows between 46° and 52°. The average high for July is 57° with an average low of 50°. 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 Reykjavik. See also: August | September | October.