18.08
tue
tue
Day
72°F
NE 12 mph
Precip.
7%
7%
Night
70°F
E 9 mph
Precip.
9%
9%
19.08
wed
wed
Day
72°F
NE 4 mph
Precip.
9%
9%
Night
68°F
SE 9 mph
Precip.
15%
15%
20.08
thu
thu
Day
72°F
NE 11 mph
Precip.
14%
14%
Night
68°F
SE 12 mph
Precip.
9%
9%
21.08
fri
fri
Day
73°F
E 11 mph
Precip.
3%
3%
Night
66°F
SE 16 mph
Precip.
6%
6%
22.08
sat
sat
Day
72°F
E 14 mph
Precip.
4%
4%
Night
66°F
SE 14 mph
Precip.
9%
9%
23.08
sun
sun
Day
70°F
E 9 mph
Precip.
5%
5%
Night
68°F
SE 11 mph
Precip.
8%
8%
24.08
mon
mon
Day
72°F
E 9 mph
Precip.
3%
3%
Night
68°F
SE 12 mph
Precip.
9%
9%
25.08
tue
tue
Day
70°F
NE 7 mph
Precip.
4%
4%
Night
70°F
SE 7 mph
Precip.
5%
5%
26.08
wed
wed
Day
70°F
NE 9 mph
Precip.
5%
5%
Night
70°F
SE 12 mph
Precip.
5%
5%
27.08
thu
thu
Day
75°F
E 11 mph
Precip.
3%
3%
Night
72°F
SE 14 mph
Precip.
4%
4%
28.08
fri
fri
Day
73°F
NW 9 mph
Precip.
4%
4%
Night
73°F
NW 5 mph
Precip.
4%
4%
29.08
sat
sat
Day
73°F
NW 7 mph
Precip.
11%
11%
Night
75°F
NW 6 mph
Precip.
3%
3%
30.08
sun
sun
Day
77°F
NE 8 mph
Precip.
3%
3%
Night
77°F
S 17 mph
Precip.
2%
2%
31.08
mon
mon
Day
79°F
SE 11 mph
Precip.
4%
4%
Night
73°F
SE 16 mph
Precip.
18%
18%
sea water
temperature
temperature
| Quarteira |
monthly
weather
weather
| Quarteira |
current
weather
weather
| Quarteira |
7 days
forecast
forecast
| Quarteira |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 67.3°F. The highest and lowest sea temperatures during the month were 70.0°F and 64.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 68.5°F and 63.5°F.
Air temperature in Quarteira, °F
Precipitation total in Quarteira, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Quarteira
Quarteira on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Quarteira
Local time: 11:02
August 18, tuesday
1200
72°F
NE
12 mph
12 mph
1500
73°F
NE
13 mph
13 mph
1800
73°F
E
11 mph
11 mph
2100
70°F
E
11 mph
11 mph
August 19, wednesday
0000
70°F
E
9 mph
9 mph
0300
68°F
E
7 mph
7 mph
0600
68°F
SE
6 mph
6 mph
0900
70°F
NE
4 mph
4 mph
