S
M
T
W
T
F
S
28
88°
72°
29
87°
71°
30
86°
72°
31
85°
73°
1
89°
73°
2
90°
71°
3
92°
65°
4
84°
58°
5
86°
58°
6
88°
68°
7
91°
67°
8
93°
72°
9
92°
69°
10
73°
69°
11
82°
62°
12
85°
59°
13
87°
64°
14
89°
68°
15
90°
69°
16
90°
72°
17
94°
70°
18
92°
71°
19
89°
66°
20
88°
62°
21
88°
68°
22
90°
67°
23
88°
67°
24
92°
67°
25
94°
71°
26
97°
71°
27
93°
72°
28
98°
71°
29
89°
67°
30
89°
66°
31
93°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Puerto Iguazú
Puerto Iguazú's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January 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 January weather will actually feel in Puerto Iguazú. See also: February | March | April.