14.09
mon
mon
Day
72°F
NE 9 mph
Precip.
7%
7%
Night
70°F
N 8 mph
Precip.
9%
9%
15.09
tue
tue
Day
72°F
NE 9 mph
Precip.
6%
6%
Night
70°F
NE 4 mph
Precip.
7%
7%
16.09
wed
wed
Day
72°F
NE 8 mph
Precip.
5%
5%
Night
68°F
SE 4 mph
Precip.
8%
8%
17.09
thu
thu
Day
72°F
E 9 mph
Precip.
5%
5%
Night
68°F
SE 6 mph
Precip.
7%
7%
18.09
fri
fri
Day
72°F
E 9 mph
Precip.
4%
4%
Night
70°F
SE 6 mph
Precip.
6%
6%
19.09
sat
sat
Day
72°F
E 7 mph
Precip.
5%
5%
Night
70°F
E 5 mph
Precip.
23%
23%
20.09
sun
sun
Day
72°F
NE 8 mph
Precip.
6%
6%
Night
68°F
E 4 mph
Precip.
9%
9%
sea water
temperature
temperature
| San Diego |
monthly
weather
weather
| San Diego |
current
weather
weather
| San Diego |
14 days
forecast
forecast
| San Diego |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 67.3°F. The highest and lowest sea temperatures during the month were 70.5°F and 63.1°F.
Air temperature in San Diego, °F
Precipitation total in San Diego, in.
* Charts above show average data for the last 3 years.
Best time for vacation in San Diego
San Diego on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Diego
Local time: 21:27
September 15, tuesday
0000
70°F
N
8 mph
8 mph
0300
68°F
N
7 mph
7 mph
0600
68°F
N
6 mph
6 mph
0900
70°F
N
6 mph
6 mph
1200
72°F
NE
9 mph
9 mph
1500
72°F
NE
9 mph
9 mph
1800
70°F
NE
6 mph
6 mph
2100
70°F
NE
4 mph
4 mph
