25.08
tue
tue
Day

70°F
S 5 mph
Precip.
18%
18%
Night

66°F
SE 4 mph
Precip.
11%
11%
26.08
wed
wed
Day

88°F
S 6 mph
Precip.
2%
2%
Night

64°F
SE 4 mph
Precip.
5%
5%
27.08
thu
thu
Day

88°F
S 7 mph
Precip.
0%
0%
Night

63°F
SE 4 mph
Precip.
1%
1%
28.08
fri
fri
Day

86°F
S 6 mph
Precip.
1%
1%
Night

61°F
SE 4 mph
Precip.
4%
4%
29.08
sat
sat
Day

84°F
S 6 mph
Precip.
0%
0%
Night

57°F
SE 3 mph
Precip.
7%
7%
30.08
sun
sun
Day

77°F
S 6 mph
Precip.
6%
6%
Night

55°F
NE 2 mph
Precip.
9%
9%
31.08
mon
mon
Day

75°F
S 6 mph
Precip.
1%
1%
Night

54°F
SE 4 mph
Precip.
9%
9%
01.09
tue
tue
Day

73°F
NE 6 mph
Precip.
10%
10%
Night

61°F
SE 4 mph
Precip.
24%
24%
02.09
wed
wed
Day

77°F
S 4 mph
Precip.
10%
10%
Night

70°F
NW 1 mph
Precip.
10%
10%
03.09
thu
thu
Day

90°F
NW 2 mph
Precip.
9%
9%
Night

72°F
N 1 mph
Precip.
9%
9%
04.09
fri
fri
Day

82°F
W 1 mph
Precip.
6%
6%
Night

64°F
NE 2 mph
Precip.
2%
2%
05.09
sat
sat
Day

79°F
NW 6 mph
Precip.
0%
0%
Night

63°F
SE 2 mph
Precip.
1%
1%
06.09
sun
sun
Day

79°F
S 6 mph
Precip.
0%
0%
Night

64°F
E 2 mph
Precip.
0%
0%
07.09
mon
mon
Day

91°F
NW 2 mph
Precip.
0%
0%
Night

72°F
NE 3 mph
Precip.
0%
0%
sea water
temperature
temperature
| San Jose |
monthly
weather
weather
| San Jose |
current
weather
weather
| San Jose |
7 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: 13:15
August 25, tuesday
1500

90°F
S
7 mph
7 mph
1800

81°F
S
8 mph
8 mph
2100

70°F
SE
4 mph
4 mph
August 26, wednesday
0000

66°F
SE
4 mph
4 mph
0300

64°F
S
2 mph
2 mph
0600

64°F
SE
2 mph
2 mph
0900

73°F
S
4 mph
4 mph
1200

88°F
S
6 mph
6 mph




























