20.12
sat
sat
Day

52°F
NE 12 mph
Precip.
100%
100%
Night

48°F
SE 21 mph
Precip.
100%
100%
21.12
sun
sun
Day

50°F
SE 9 mph
Precip.
100%
100%
Night

46°F
N 4 mph
Precip.
100%
100%
22.12
mon
mon
Day

50°F
N 3 mph
Precip.
0%
0%
Night

55°F
E 14 mph
Precip.
100%
100%
23.12
tue
tue
Day

54°F
SE 15 mph
Precip.
100%
100%
Night

48°F
S 9 mph
Precip.
100%
100%
24.12
wed
wed
Day

50°F
SW 7 mph
Precip.
0%
0%
Night

48°F
S 11 mph
Precip.
0%
0%
25.12
thu
thu
Day

48°F
SW 8 mph
Precip.
0%
0%
Night

43°F
S 12 mph
Precip.
0%
0%
26.12
fri
fri
Day

45°F
SW 6 mph
Precip.
0%
0%
Night

43°F
W 4 mph
Precip.
0%
0%
27.12
sat
sat
Day

45°F
W 4 mph
Precip.
0%
0%
Night

46°F
W 5 mph
Precip.
0%
0%
28.12
sun
sun
Day

46°F
W 6 mph
Precip.
0%
0%
Night

43°F
W 6 mph
Precip.
0%
0%
29.12
mon
mon
Day

46°F
W 15 mph
Precip.
0%
0%
Night

48°F
W 15 mph
Precip.
0%
0%
30.12
tue
tue
Day

46°F
W 14 mph
Precip.
0%
0%
Night

43°F
W 13 mph
Precip.
0%
0%
31.12
wed
wed
Day

45°F
W 8 mph
Precip.
0%
0%
Night

43°F
W 6 mph
Precip.
0%
0%
01.01
thu
thu
Day

46°F
W 11 mph
Precip.
0%
0%
Night

46°F
W 13 mph
Precip.
100%
100%
02.01
fri
fri
Day

46°F
W 14 mph
Precip.
30%
30%
Night

46°F
SW 11 mph
Precip.
0%
0%
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: 10:47
December 20, saturday
1200

52°F
NE
12 mph
12 mph
1500

54°F
E
12 mph
12 mph
1800

52°F
E
14 mph
14 mph
2100

52°F
E
16 mph
16 mph
December 21, sunday
0000

48°F
SE
21 mph
21 mph
0300

48°F
SE
14 mph
14 mph
0600

48°F
SE
13 mph
13 mph
0900

46°F
SE
9 mph
9 mph




























