05.09
sat
sat
Day
86°F
S 17 mph
Precip.
0%
0%
Night
75°F
S 4 mph
Precip.
1%
1%
06.09
sun
sun
Day
93°F
S 6 mph
Precip.
0%
0%
Night
82°F
S 4 mph
Precip.
0%
0%
07.09
mon
mon
Day
90°F
S 13 mph
Precip.
0%
0%
Night
77°F
S 8 mph
Precip.
1%
1%
08.09
tue
tue
Day
86°F
S 10 mph
Precip.
0%
0%
Night
75°F
S 8 mph
Precip.
1%
1%
09.09
wed
wed
Day
82°F
S 11 mph
Precip.
1%
1%
Night
73°F
S 6 mph
Precip.
1%
1%
10.09
thu
thu
Day
82°F
SE 2 mph
Precip.
1%
1%
Night
73°F
NE 1 mph
Precip.
8%
8%
11.09
fri
fri
Day
84°F
NE 7 mph
Precip.
1%
1%
Night
75°F
SE 5 mph
Precip.
14%
14%
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 78.2°F. The highest and lowest sea temperatures during the month were 79.9°F and 75.4°F.
Air temperature in Piraeus, °F
Precipitation total in Piraeus, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Piraeus
Piraeus on a weather map
Places in Greece:
Name
°F
24 Hours Forecast
Piraeus
Local time: 03:35
September 05, saturday
0600
72°F
SE
6 mph
6 mph
0900
79°F
S
11 mph
11 mph
1200
86°F
S
17 mph
17 mph
1500
88°F
S
15 mph
15 mph
1800
86°F
S
12 mph
12 mph
2100
79°F
S
6 mph
6 mph
September 06, sunday
0000
75°F
S
4 mph
4 mph
0300
75°F
S
5 mph
5 mph
