Measurements:
°C
°F
Porto
66°F
S 6 mph
Feels like: 66°F
Precip: 0%
World Resorts Portugal Porto Weather

7 Day Weather Forecast

03.30
mon
DAY
62°F
SW 4 mph
precip
0%
NIGHT
58°F
W 5 mph
precip
0%
03.31
tue
DAY
68°F
SW 6 mph
precip
0%
NIGHT
60°F
W 8 mph
precip
0%
04.01
wed
DAY
66°F
SW 5 mph
precip
0%
NIGHT
56°F
S 1 mph
precip
0%
04.02
thu
DAY
62°F
SE 8 mph
precip
0%
NIGHT
54°F
SE 9 mph
precip
0%
04.03
fri
DAY
62°F
E 4 mph
precip
0%
NIGHT
54°F
N 7 mph
precip
0%
04.04
sat
DAY
62°F
NE 14 mph
precip
0%
NIGHT
56°F
N 8 mph
precip
0%
04.05
sun
DAY
62°F
NE 7 mph
precip
0%
NIGHT
56°F
W 2 mph
precip
0%

Porto Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Porto was 13.2°F. The maximum and minimum values were 12.3°F and 14.4°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 56.9 °F
February 58.3 °F
December 59.3 °F
The most rainy months:
November 9 days
December 8 days
October 8 days
The most windy months:
February 8 mph
March 8 mph
January 8 mph