Water temperature in San Francisco
87.4
°F
September 13, 21:29
Trend:
increasingYesterday:
87.3°FTomorrow:
87.5°F
Sunrise:
Sunset:
Day Length:
12 h. 19 min.San Francisco in September
Minimum:
72.6°FAverage:
77.7°FMaximum:
79.6°FSea water temperature in San Francisco today
As of now, in San Francisco, the water temperature is 87.4°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.5°F higher than 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 stay about the same.Recent sea temperature and forecast
Today's water temperature closely matches the previous two weeks' average, indicating a stable trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 87.7°F on 2015, while the historical minimum was 85.6°F on 2021.
Daily water temperature in San Francisco
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 30 | 87.7°F | 86.7°F | 87.2°F |
| Aug 31 | 88.4°F | 86.7°F | 87.2°F |
| Sep 1 | 88.1°F | 86.5°F | 87.1°F |
| Sep 2 | 87.7°F | 86.4°F | 87.1°F |
| Sep 3 | 87.4°F | 86.2°F | 86.9°F |
| Sep 4 | 87.5°F | 86.1°F | 86.9°F |
| Sep 5 | 87.5°F | 87.3°F | 86.9°F |
| Sep 6 | 87.4°F | 87.7°F | 86.8°F |
| Sep 7 | 87.2°F | 88.3°F | 86.7°F |
| Sep 8 | 87.1°F | 88.1°F | 86.5°F |
| Sep 9 | 87.0°F | 87.9°F | 86.6°F |
| Sep 10 | 87.0°F | 87.7°F | 86.8°F |
| Sep 11 | 87.4°F | 87.5°F | 86.8°F |
| Sep 12 | 87.3°F | 87.4°F | 86.9°F |
| Sep 13 | 87.4°F | 87.2°F | 86.8°F |
| Sep 14 | 87.5°F | 87.7°F | 86.9°F |
| Sep 15 | 87.6°F | 87.6°F | 87.1°F |
| Sep 16 | 87.7°F | 87.4°F | 87.1°F |
| Sep 17 | 87.8°F | 88.0°F | 87.2°F |
| Sep 18 | 87.9°F | 88.5°F | 87.3°F |
| Sep 19 | 87.9°F | 87.9°F | 87.4°F |
| Sep 20 | 87.8°F | 88.2°F | 87.3°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.