S
M
T
W
T
F
S
27
91°
77°
28
91°
76°
29
91°
76°
30
91°
76°
1
91°
76°
2
92°
76°
3
92°
75°
4
93°
76°
5
93°
77°
6
91°
75°
7
93°
76°
8
95°
77°
9
92°
76°
10
91°
75°
11
92°
75°
12
92°
76°
13
92°
78°
14
92°
77°
15
92°
77°
16
93°
79°
17
93°
77°
18
91°
79°
19
93°
79°
20
91°
78°
21
90°
75°
22
91°
75°
23
91°
75°
24
93°
76°
25
93°
76°
26
92°
75°
27
93°
74°
28
92°
75°
29
93°
75°
30
93°
75°
31
93°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Porto
Porto's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May 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 May weather will actually feel in Porto. See also: June | July | August.
