Current sea water temperature:
+69.6°F
| Minimum sea water temperature in September: | 73.8°F |
| Maximum sea water temperature in September: | 55.4°F |
| Average sea water temperature in September: | 63.5°F |
| more information | |
14 days
forecast
forecast
| San Jose |
monthly
weather
weather
| San Jose |
Sea water temperature for the last 10 days:
| September 14 | 69.6°F | September 9 | 69.1°F |
| September 13 | 71.2°F | September 8 | 68.9°F |
| September 12 | 71.6°F | September 7 | 67.1°F |
| September 11 | 70.5°F | September 6 | 66.4°F |
| September 10 | 69.4°F | September 5 | 67.1°F |
Monthly sea water temperature, °F
When is the warmest sea in San Jose?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Jose was noticed in September, August and July.
Monthly Sea Temperatures in San Jose, °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.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 70.0°F. The highest and lowest sea temperatures during the month were 71.8°F and 68.0°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 69.0°F. The highest and lowest sea temperatures during the month were 71.2°F and 66.2°F.
current
weather
weather
| San Jose |
weather in
September
September
| San Jose |
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: 13:41
September 14, monday
1500
81°F
S
9 mph
9 mph
1800
77°F
SE
7 mph
7 mph
2100
59°F
E
4 mph
4 mph
September 15, tuesday
0000
57°F
NE
3 mph
3 mph
0300
54°F
NE
3 mph
3 mph
0600
54°F
NE
4 mph
4 mph
0900
64°F
N
3 mph
3 mph
1200
81°F
N
1 mph
1 mph
