16.09
wed
wed
Day
79°F
SE 10 mph
Precip.
1%
1%
Night
63°F
S 8 mph
Precip.
22%
22%
17.09
thu
thu
Day
84°F
S 4 mph
Precip.
1%
1%
Night
66°F
S 7 mph
Precip.
13%
13%
18.09
fri
fri
Day
84°F
NW 3 mph
Precip.
6%
6%
Night
68°F
S 5 mph
Precip.
2%
2%
19.09
sat
sat
Day
86°F
NW 7 mph
Precip.
1%
1%
Night
70°F
S 3 mph
Precip.
4%
4%
20.09
sun
sun
Day
88°F
W 11 mph
Precip.
1%
1%
Night
70°F
W 3 mph
Precip.
5%
5%
21.09
mon
mon
Day
88°F
NW 6 mph
Precip.
0%
0%
Night
68°F
SW 3 mph
Precip.
4%
4%
22.09
tue
tue
Day
90°F
NW 6 mph
Precip.
1%
1%
Night
72°F
NW 5 mph
Precip.
1%
1%
sea water
temperature
temperature
| Portimao |
monthly
weather
weather
| Portimao |
current
weather
weather
| Portimao |
14 days
forecast
forecast
| Portimao |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 68.2°F. The highest and lowest sea temperatures during the month were 70.7°F and 65.1°F.
Air temperature in Portimao, °F
Precipitation total in Portimao, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Portimao
Portimao on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Portimao
Local time: 17:14
September 16, wednesday
1800
75°F
SE
11 mph
11 mph
2100
63°F
S
9 mph
9 mph
September 17, thursday
0000
63°F
S
8 mph
8 mph
0300
61°F
S
7 mph
7 mph
0600
61°F
S
6 mph
6 mph
0900
68°F
S
5 mph
5 mph
1200
84°F
S
4 mph
4 mph
1500
90°F
NE
4 mph
4 mph
