02.09
wed
wed
Day
73°F
E 9 mph
Precip.
2%
2%
Night
72°F
SE 6 mph
Precip.
4%
4%
03.09
thu
thu
Day
73°F
E 11 mph
Precip.
4%
4%
Night
70°F
SE 6 mph
Precip.
5%
5%
04.09
fri
fri
Day
73°F
E 9 mph
Precip.
5%
5%
Night
72°F
SE 4 mph
Precip.
7%
7%
05.09
sat
sat
Day
77°F
E 7 mph
Precip.
7%
7%
Night
75°F
S 8 mph
Precip.
15%
15%
06.09
sun
sun
Day
79°F
SE 12 mph
Precip.
15%
15%
Night
79°F
SE 2 mph
Precip.
22%
22%
07.09
mon
mon
Day
79°F
NE 6 mph
Precip.
19%
19%
Night
79°F
SE 2 mph
Precip.
19%
19%
08.09
tue
tue
Day
77°F
N 14 mph
Precip.
22%
22%
Night
73°F
N 14 mph
Precip.
16%
16%
09.09
wed
wed
Day
75°F
NE 9 mph
Precip.
11%
11%
Night
73°F
SE 4 mph
Precip.
11%
11%
10.09
thu
thu
Day
75°F
E 9 mph
Precip.
12%
12%
Night
73°F
SE 6 mph
Precip.
12%
12%
11.09
fri
fri
Day
72°F
E 9 mph
Precip.
10%
10%
Night
70°F
E 6 mph
Precip.
20%
20%
12.09
sat
sat
Day
72°F
E 7 mph
Precip.
15%
15%
Night
68°F
E 3 mph
Precip.
11%
11%
13.09
sun
sun
Day
72°F
NE 7 mph
Precip.
4%
4%
Night
70°F
E 4 mph
Precip.
9%
9%
14.09
mon
mon
Day
72°F
E 9 mph
Precip.
4%
4%
Night
68°F
E 5 mph
Precip.
7%
7%
15.09
tue
tue
Day
72°F
E 9 mph
Precip.
5%
5%
Night
72°F
SE 6 mph
Precip.
6%
6%
sea water
temperature
temperature
| San Diego |
monthly
weather
weather
| San Diego |
current
weather
weather
| San Diego |
7 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: 07:20
September 02, wednesday
0900
73°F
SE
6 mph
6 mph
1200
73°F
E
9 mph
9 mph
1500
73°F
E
12 mph
12 mph
1800
73°F
SE
11 mph
11 mph
2100
72°F
SE
8 mph
8 mph
September 03, thursday
0000
72°F
SE
6 mph
6 mph
0300
70°F
SE
5 mph
5 mph
0600
70°F
SE
6 mph
6 mph
