17.05
sun
sun
Day
66°F
SE 12 mph
Precip.
0%
0%
Night
55°F
SE 12 mph
Precip.
0%
0%
18.05
mon
mon
Day
66°F
E 5 mph
Precip.
0%
0%
Night
57°F
S 11 mph
Precip.
0%
0%
19.05
tue
tue
Day
70°F
E 2 mph
Precip.
0%
0%
Night
61°F
S 8 mph
Precip.
0%
0%
20.05
wed
wed
Day
73°F
NW 9 mph
Precip.
0%
0%
Night
64°F
SW 6 mph
Precip.
0%
0%
21.05
thu
thu
Day
77°F
NW 19 mph
Precip.
0%
0%
Night
64°F
W 11 mph
Precip.
0%
0%
22.05
fri
fri
Day
75°F
NW 19 mph
Precip.
0%
0%
Night
64°F
SW 6 mph
Precip.
0%
0%
23.05
sat
sat
Day
75°F
NW 5 mph
Precip.
0%
0%
Night
64°F
NW 7 mph
Precip.
0%
0%
24.05
sun
sun
Day
79°F
E 4 mph
Precip.
0%
0%
Night
64°F
NW 9 mph
Precip.
0%
0%
25.05
mon
mon
Day
77°F
SE 6 mph
Precip.
0%
0%
Night
61°F
S 9 mph
Precip.
0%
0%
26.05
tue
tue
Day
77°F
SE 9 mph
Precip.
0%
0%
Night
61°F
SE 12 mph
Precip.
0%
0%
27.05
wed
wed
Day
77°F
SE 5 mph
Precip.
0%
0%
Night
64°F
S 7 mph
Precip.
0%
0%
28.05
thu
thu
Day
77°F
NE 5 mph
Precip.
0%
0%
Night
63°F
S 10 mph
Precip.
0%
0%
29.05
fri
fri
Day
75°F
E 7 mph
Precip.
0%
0%
Night
64°F
S 9 mph
Precip.
0%
0%
30.05
sat
sat
Day
81°F
N 6 mph
Precip.
0%
0%
Night
73°F
SE 6 mph
Precip.
0%
0%
sea water
temperature
temperature
| Portimao |
monthly
weather
weather
| Portimao |
current
weather
weather
| Portimao |
7 days
forecast
forecast
| Portimao |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 61.7°F. The highest and lowest sea temperatures during the month were 63.7°F and 60.1°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 66.5°F. The highest and lowest sea temperatures during the month were 69.4°F and 64.2°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: 22:49
May 18, monday
0000
55°F
SE
12 mph
12 mph
0300
54°F
S
8 mph
8 mph
0600
52°F
S
7 mph
7 mph
0900
59°F
S
6 mph
6 mph
1200
66°F
E
5 mph
5 mph
1500
70°F
SE
13 mph
13 mph
1800
66°F
SE
15 mph
15 mph
2100
59°F
SE
14 mph
14 mph
