Water temperature in San Francisco
85.0
°F
October 20, 17:39
Trend:
decreasingYesterday:
85.1°FTomorrow:
84.8°F
Sunrise:
Sunset:
Day Length:
11 h. 44 min.San Francisco in October
Minimum:
79.3°FAverage:
81.0°FMaximum:
82.5°FSea water temperature in San Francisco today
As of now, in San Francisco, the water temperature is 85.0°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 lower 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 fall 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 87.0°F on 2023, while the historical minimum was 84.7°F on 2018.
Daily water temperature in San Francisco
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 6 | 87.4°F | 86.7°F | 86.2°F |
| Oct 7 | 87.1°F | 87.0°F | 86.1°F |
| Oct 8 | 86.8°F | 87.2°F | 85.8°F |
| Oct 9 | 86.4°F | 87.3°F | 85.7°F |
| Oct 10 | 86.4°F | 87.3°F | 85.7°F |
| Oct 11 | 86.6°F | 87.2°F | 85.7°F |
| Oct 12 | 86.5°F | 87.0°F | 85.9°F |
| Oct 13 | 86.2°F | 86.6°F | 85.9°F |
| Oct 14 | 86.3°F | 86.5°F | 85.9°F |
| Oct 15 | 86.0°F | 86.3°F | 85.8°F |
| Oct 16 | 85.8°F | 86.2°F | 85.7°F |
| Oct 17 | 86.0°F | 85.9°F | 85.7°F |
| Oct 18 | 85.7°F | 85.4°F | 85.6°F |
| Oct 19 | 85.1°F | 85.3°F | 85.5°F |
| Oct 20 | 85.0°F | 85.2°F | 85.5°F |
| Oct 21 | 84.8°F | 84.9°F | 85.3°F |
| Oct 22 | 84.7°F | 84.7°F | 85.2°F |
| Oct 23 | 84.6°F | 84.6°F | 85.1°F |
| Oct 24 | 84.3°F | 84.5°F | 84.8°F |
| Oct 25 | 84.4°F | 84.4°F | 84.8°F |
| Oct 26 | 84.4°F | 84.4°F | 84.9°F |
| Oct 27 | 84.3°F | 84.1°F | 84.8°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.