S
M
T
W
T
F
S
1
30°
24°
2
32°
25°
3
45°
18°
4
75°
30°
5
33°
28°
6
41°
28°
7
39°
32°
8
37°
30°
9
41°
30°
10
42°
33°
11
38°
29°
12
32°
28°
13
36°
30°
14
41°
29°
15
40°
31°
16
38°
32°
17
39°
31°
18
39°
30°
19
45°
33°
20
33°
24°
21
34°
27°
22
32°
24°
23
38°
25°
24
32°
24°
25
32°
18°
26
38°
24°
27
35°
27°
28
37°
24°
29
41°
34°
30
39°
31°
31
35°
29°
1
40°
29°
2
38°
26°
3
34°
26°
4
74°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Reykjavik
Reykjavik's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Reykjavik. See also: April | May | June.