Water temperature in San Jose
66.1
°F
September 4, 11:41
Trend:
stableYesterday:
67.8°FTomorrow:
66.3°F
Sunrise:
Sunset:
Day Length:
12 h. 52 min.San Jose in September
Minimum:
52.0°FAverage:
52.9°FMaximum:
54.3°FSea water temperature in San Jose today
As of now, in San Jose, the water temperature is 66.1°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is about the same as the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.Recent sea temperature and forecast
Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 71.5°F on 2025, while the historical minimum was 58.2°F on 2016.
Daily water temperature in San Jose
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 21 | 68.8°F | 67.7°F | 65.7°F |
| Aug 22 | 68.7°F | 68.4°F | 66.0°F |
| Aug 23 | 69.0°F | 69.9°F | 66.0°F |
| Aug 24 | 69.0°F | 70.4°F | 66.0°F |
| Aug 25 | 71.0°F | 70.0°F | 65.8°F |
| Aug 26 | 70.0°F | 69.7°F | 65.6°F |
| Aug 27 | 70.8°F | 68.5°F | 65.6°F |
| Aug 28 | 70.7°F | 67.9°F | 65.5°F |
| Aug 29 | 70.0°F | 67.6°F | 65.4°F |
| Aug 30 | 69.2°F | 68.1°F | 65.4°F |
| Aug 31 | 68.0°F | 69.4°F | 65.6°F |
| Sep 1 | 68.2°F | 69.7°F | 65.7°F |
| Sep 2 | 67.3°F | 69.5°F | 65.7°F |
| Sep 3 | 67.8°F | 70.3°F | 65.9°F |
| Sep 4 | 66.1°F | 71.5°F | 66.1°F |
| Sep 5 | 66.3°F | 71.5°F | 66.3°F |
| Sep 6 | 66.6°F | 70.1°F | 66.6°F |
| Sep 7 | 66.4°F | 69.5°F | 66.4°F |
| Sep 8 | 66.1°F | 69.5°F | 66.1°F |
| Sep 9 | 66.2°F | 68.7°F | 66.2°F |
| Sep 10 | 65.8°F | 67.7°F | 65.9°F |
| Sep 11 | 65.7°F | 68.1°F | 65.7°F |
* actual - actual temperature values
** forecast - projected values for the next week
Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.
Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| Redwood City |
67.4°F
|
21mi |
| Oakland |
66.1°F
|
38mi |
| San Francisco |
64.5°F
|
42mi |
| Monterey |
58.5°F
|
51mi |
* current water temperature in this city
** straight line distance from San Jose