21.12
sun
sun
Day
48°F
SE 16 mph
Precip.
100%
100%
Night
46°F
S 4 mph
Precip.
0%
0%
22.12
mon
mon
Day
50°F
SE 2 mph
Precip.
0%
0%
Night
50°F
SE 8 mph
Precip.
100%
100%
23.12
tue
tue
Day
50°F
SW 9 mph
Precip.
0%
0%
Night
48°F
SW 6 mph
Precip.
0%
0%
24.12
wed
wed
Day
54°F
S 7 mph
Precip.
0%
0%
Night
48°F
S 12 mph
Precip.
0%
0%
25.12
thu
thu
Day
50°F
W 4 mph
Precip.
0%
0%
Night
46°F
SW 5 mph
Precip.
0%
0%
26.12
fri
fri
Day
46°F
SW 6 mph
Precip.
0%
0%
Night
41°F
W 6 mph
Precip.
0%
0%
27.12
sat
sat
Day
46°F
W 11 mph
Precip.
0%
0%
Night
46°F
W 9 mph
Precip.
0%
0%
28.12
sun
sun
Day
50°F
W 7 mph
Precip.
0%
0%
Night
46°F
W 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
50°F
W 4 mph
Precip.
0%
0%
Night
46°F
W 6 mph
Precip.
0%
0%
30.12
tue
tue
Day
48°F
SW 4 mph
Precip.
0%
0%
Night
46°F
W 4 mph
Precip.
0%
0%
31.12
wed
wed
Day
46°F
W 4 mph
Precip.
0%
0%
Night
43°F
W 7 mph
Precip.
0%
0%
01.01
thu
thu
Day
45°F
W 6 mph
Precip.
0%
0%
Night
43°F
W 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
46°F
NW 6 mph
Precip.
0%
0%
Night
48°F
NW 11 mph
Precip.
100%
100%
03.01
sat
sat
Day
52°F
NW 13 mph
Precip.
100%
100%
Night
57°F
N 25 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 59.2°F. The highest and lowest sea temperatures during the month were 60.3°F and 58.3°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 56.7°F. The highest and lowest sea temperatures during the month were 58.1°F and 55.0°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: 11:22
December 21, sunday
1200
48°F
SE
16 mph
16 mph
1500
50°F
SE
13 mph
13 mph
1800
48°F
SE
12 mph
12 mph
2100
48°F
SE
12 mph
12 mph
December 22, monday
0000
46°F
S
4 mph
4 mph
0300
46°F
SE
4 mph
4 mph
0600
46°F
SE
8 mph
8 mph
0900
46°F
S
6 mph
6 mph
