25.08
tue
tue
Day
70°F
NE 7 mph
Precip.
25%
25%
Night
64°F
N 3 mph
Precip.
23%
23%
26.08
wed
wed
Day
63°F
N 10 mph
Precip.
75%
75%
Night
61°F
NW 4 mph
Precip.
34%
34%
27.08
thu
thu
Day
61°F
NE 11 mph
Precip.
68%
68%
Night
63°F
N 9 mph
Precip.
28%
28%
28.08
fri
fri
Day
72°F
SE 4 mph
Precip.
3%
3%
Night
61°F
S 2 mph
Precip.
12%
12%
29.08
sat
sat
Day
73°F
SE 4 mph
Precip.
1%
1%
Night
64°F
SE 1 mph
Precip.
11%
11%
30.08
sun
sun
Day
75°F
E 6 mph
Precip.
5%
5%
Night
64°F
SE 2 mph
Precip.
14%
14%
31.08
mon
mon
Day
77°F
SE 6 mph
Precip.
1%
1%
Night
63°F
N 2 mph
Precip.
16%
16%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 66.7°F. The highest and lowest sea temperatures during the month were 69.3°F and 63.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 61.6°F. The highest and lowest sea temperatures during the month were 65.7°F and 56.3°F.
Air temperature in Porto, °F
Precipitation total in Porto, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Porto
Porto on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Porto
Local time: 16:31
August 25, tuesday
1800
72°F
E
7 mph
7 mph
2100
66°F
NE
2 mph
2 mph
August 26, wednesday
0000
64°F
N
3 mph
3 mph
0300
63°F
N
5 mph
5 mph
0600
61°F
NW
3 mph
3 mph
0900
63°F
N
7 mph
7 mph
1200
63°F
N
10 mph
10 mph
1500
66°F
NE
14 mph
14 mph
