Measurements:
°C
°F
CURRENT WEATHER
23:52
Portimao
66°F
S 8 mph
Feels like: 66°F
Precip: 27%
World Resorts Portugal Portimao Weather

7 Day Weather Forecast

09.08
tue
DAY
94°F
S 9 mph
precip
0%
NIGHT
66°F
S 8 mph
precip
27%
09.09
wed
DAY
84°F
SE 11 mph
precip
1%
NIGHT
62°F
S 9 mph
precip
22%
09.10
thu
DAY
90°F
S 4 mph
precip
1%
NIGHT
70°F
S 7 mph
precip
7%
09.11
fri
DAY
88°F
N 6 mph
precip
1%
NIGHT
74°F
S 6 mph
precip
1%
09.12
sat
DAY
98°F
NW 6 mph
precip
0%
NIGHT
74°F
SW 1 mph
precip
1%
09.13
sun
DAY
100°F
NW 11 mph
precip
0%
NIGHT
76°F
W 4 mph
precip
2%
09.14
mon
DAY
94°F
NW 11 mph
precip
4%
NIGHT
78°F
SW 3 mph
precip
4%

Portimao Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Portimao was 18.4°F. The maximum and minimum values were 16.6°F and 19.8°F respectively.

Portimao on the Weather Map

Best Time to Visit Portimao
The most sunny months:
July 29 days
August 29 days
June 25 days
The most warm months:
August 85.9 °F
July 85.1 °F
September 81.6 °F
Warmest sea temperature:
September 70.5 °F
August 70.2 °F
October 69.4 °F
The most cold months:
January 60.6 °F
February 61.1 °F
December 62.8 °F
The most rainy months:
March 3 days
November 3 days
October 3 days
The most windy months:
March 11 mph
February 10 mph
April 10 mph
more details