S
M
T
W
T
F
S
29
66°
50°
30
72°
55°
31
75°
57°
1
57°
52°
2
59°
52°
3
63°
48°
4
70°
59°
5
64°
57°
6
68°
55°
7
66°
50°
8
57°
48°
9
64°
50°
10
72°
57°
11
68°
59°
12
64°
57°
13
66°
59°
14
68°
55°
15
63°
59°
16
66°
57°
17
66°
54°
18
70°
57°
19
66°
59°
20
68°
59°
21
70°
55°
22
N/A
23
56°
48°
24
61°
48°
25
68°
50°
26
59°
49°
27
62°
52°
28
68°
49°
29
66°
41°
30
67°
44°
1
72°
49°
2
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Koyasan
Koyasan's April 2026 forecast shows daily high temperatures ranging from 56° to 72°, with overnight lows between 41° and 52°. The average high for April is 64° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Koyasan. See also: May | June | July.
