25.08
tue
tue
Day
70°F
SE 6 mph
Precip.
20%
20%
Night
64°F
S 6 mph
Precip.
11%
11%
26.08
wed
wed
Day
88°F
SE 6 mph
Precip.
1%
1%
Night
63°F
SE 6 mph
Precip.
4%
4%
27.08
thu
thu
Day
88°F
SE 7 mph
Precip.
0%
0%
Night
63°F
SE 6 mph
Precip.
1%
1%
28.08
fri
fri
Day
86°F
SE 6 mph
Precip.
1%
1%
Night
61°F
SE 6 mph
Precip.
4%
4%
29.08
sat
sat
Day
84°F
E 6 mph
Precip.
0%
0%
Night
54°F
SE 5 mph
Precip.
11%
11%
30.08
sun
sun
Day
77°F
SE 6 mph
Precip.
5%
5%
Night
52°F
N 1 mph
Precip.
11%
11%
31.08
mon
mon
Day
73°F
SE 6 mph
Precip.
0%
0%
Night
50°F
SE 5 mph
Precip.
13%
13%
sea water
temperature
temperature
| San Jose |
monthly
weather
weather
| San Jose |
current
weather
weather
| San Jose |
14 days
forecast
forecast
| San Jose |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 70.1°F. The highest and lowest sea temperatures during the month were 71.8°F and 68.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.5°F. The highest and lowest sea temperatures during the month were 72.5°F and 66.7°F.
Air temperature in San Jose, °F
Precipitation total in San Jose, in.
* Charts above show average data for the last 3 years.
Best time for vacation in San Jose
San Jose on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Jose
Local time: 13:55
August 25, tuesday
1500
81°F
SE
8 mph
8 mph
1800
79°F
SE
9 mph
9 mph
2100
66°F
SE
6 mph
6 mph
August 26, wednesday
0000
64°F
S
6 mph
6 mph
0300
63°F
SE
4 mph
4 mph
0600
61°F
S
4 mph
4 mph
0900
75°F
SE
6 mph
6 mph
1200
88°F
SE
6 mph
6 mph
