S
M
T
W
T
F
S
28
97°
78°
29
94°
79°
30
97°
77°
31
94°
78°
1
94°
76°
2
94°
78°
3
94°
79°
4
98°
78°
5
96°
79°
6
88°
76°
7
96°
75°
8
99°
77°
9
97°
78°
10
97°
77°
11
97°
77°
12
99°
78°
13
97°
79°
14
97°
78°
15
97°
77°
16
96°
77°
17
93°
75°
18
92°
71°
19
89°
71°
20
94°
75°
21
91°
75°
22
91°
75°
23
85°
74°
24
92°
76°
25
91°
77°
26
94°
74°
27
82°
73°
28
89°
73°
29
91°
74°
30
93°
73°
31
94°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Porto
Porto'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 Porto. See also: February | March | April.