Measurements:
°C
°F
CURRENT WEATHER
07:54
Porto
56°F
N 13 mph
Feels like: 52°F
Precip: 100%
World Resorts Portugal Porto Weather

7 Day Weather Forecast

05.10
sun
DAY
60°F
N 19 mph
precip
68%
NIGHT
58°F
N 14 mph
precip
100%
05.11
mon
DAY
66°F
N 12 mph
precip
100%
NIGHT
58°F
NW 3 mph
precip
100%
05.12
tue
DAY
64°F
NE 4 mph
precip
100%
NIGHT
58°F
N 1 mph
precip
0%
05.13
wed
DAY
64°F
E 6 mph
precip
100%
NIGHT
56°F
SE 7 mph
precip
0%
05.14
thu
DAY
62°F
SE 16 mph
precip
0%
NIGHT
54°F
S 16 mph
precip
0%
05.15
fri
DAY
60°F
SE 12 mph
precip
45%
NIGHT
54°F
SE 3 mph
precip
51%
05.16
sat
DAY
60°F
NE 9 mph
precip
100%
NIGHT
56°F
E 2 mph
precip
100%

Porto Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Porto was 16.0°F. The maximum and minimum values were 14.7°F and 17.1°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
more details