Measurements:
°C
°F
CURRENT WEATHER
00:19
Porto
52°F
NW 5 mph
Feels like: 50°F
Precip: 0%
World Resorts Portugal Porto Weather

7 Day Weather Forecast

12.18
thu
DAY
54°F
N 14 mph
precip
0%
NIGHT
54°F
N 8 mph
precip
100%
12.19
fri
DAY
54°F
S 9 mph
precip
0%
NIGHT
50°F
S 8 mph
precip
0%
12.20
sat
DAY
52°F
N 10 mph
precip
76%
NIGHT
52°F
E 16 mph
precip
100%
12.21
sun
DAY
52°F
E 9 mph
precip
100%
NIGHT
50°F
E 13 mph
precip
100%
12.22
mon
DAY
48°F
NW 7 mph
precip
100%
NIGHT
46°F
SW 7 mph
precip
0%
12.23
tue
DAY
48°F
S 4 mph
precip
0%
NIGHT
50°F
E 3 mph
precip
100%
12.24
wed
DAY
50°F
NW 9 mph
precip
100%
NIGHT
46°F
SW 9 mph
precip
0%

Porto Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Porto was 15.1°F. The maximum and minimum values were 14.6°F and 15.7°F respectively.

Porto on the Weather Map

Best Time to Visit Porto
The most sunny months:
August 25 days
July 24 days
September 21 days
The most warm months:
August 81.0 °F
July 80.5 °F
September 78.3 °F
Warmest sea temperature:
September 64.8 °F
August 64.3 °F
July 63.9 °F
The most cold months:
January 57.2 °F
February 58.4 °F
December 59.6 °F
The most rainy months:
November 9 days
December 8 days
October 8 days
The most windy months:
March 8 mph
February 8 mph
November 8 mph
more details