25.08
tue
tue
Day
93°F
S 8 mph
Precip.
0%
0%
Night
82°F
E 2 mph
Precip.
2%
2%
26.08
wed
wed
Day
95°F
N 6 mph
Precip.
0%
0%
Night
82°F
S 4 mph
Precip.
1%
1%
27.08
thu
thu
Day
91°F
S 16 mph
Precip.
0%
0%
Night
81°F
S 7 mph
Precip.
1%
1%
28.08
fri
fri
Day
88°F
SW 14 mph
Precip.
0%
0%
Night
79°F
S 6 mph
Precip.
1%
1%
29.08
sat
sat
Day
88°F
S 1 mph
Precip.
1%
1%
Night
79°F
NE 3 mph
Precip.
2%
2%
30.08
sun
sun
Day
90°F
N 5 mph
Precip.
1%
1%
Night
79°F
SE 3 mph
Precip.
2%
2%
31.08
mon
mon
Day
88°F
S 14 mph
Precip.
1%
1%
Night
77°F
S 6 mph
Precip.
1%
1%
01.09
tue
tue
Day
88°F
S 11 mph
Precip.
0%
0%
Night
77°F
S 6 mph
Precip.
1%
1%
02.09
wed
wed
Day
88°F
S 14 mph
Precip.
0%
0%
Night
77°F
S 6 mph
Precip.
0%
0%
03.09
thu
thu
Day
90°F
S 15 mph
Precip.
0%
0%
Night
77°F
S 6 mph
Precip.
0%
0%
04.09
fri
fri
Day
90°F
S 13 mph
Precip.
0%
0%
Night
77°F
S 6 mph
Precip.
1%
1%
05.09
sat
sat
Day
88°F
SE 6 mph
Precip.
0%
0%
Night
73°F
E 2 mph
Precip.
3%
3%
06.09
sun
sun
Day
86°F
NE 3 mph
Precip.
0%
0%
Night
73°F
E 3 mph
Precip.
3%
3%
07.09
mon
mon
Day
86°F
NE 9 mph
Precip.
1%
1%
Night
77°F
NE 4 mph
Precip.
3%
3%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 79.2°F. The highest and lowest sea temperatures during the month were 81.7°F and 77.9°F.
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: 15:44
August 25, tuesday
1800
95°F
SW
6 mph
6 mph
2100
84°F
NW
1 mph
1 mph
August 26, wednesday
0000
82°F
E
2 mph
2 mph
0300
81°F
SE
2 mph
2 mph
0600
79°F
SE
2 mph
2 mph
0900
86°F
SW
2 mph
2 mph
1200
95°F
N
6 mph
6 mph
1500
97°F
N
7 mph
7 mph
