S
M
T
W
T
F
S
28
94°
77°
29
92°
79°
30
92°
79°
31
95°
78°
1
97°
80°
2
99°
77°
3
88°
77°
4
85°
70°
5
76°
69°
6
81°
71°
7
80°
72°
8
92°
73°
9
96°
76°
10
100°
75°
11
101°
73°
12
101°
76°
13
94°
77°
14
97°
76°
15
96°
76°
16
95°
75°
17
97°
77°
18
92°
77°
19
92°
71°
20
75°
69°
21
73°
69°
22
74°
69°
23
72°
70°
24
80°
71°
25
84°
70°
26
86°
72°
27
88°
72°
28
92°
71°
29
92°
74°
30
86°
73°
31
93°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Rio de Janeiro
Rio de Janeiro'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 Rio de Janeiro. See also: February | March | April.
