Water temperature in San Francisco
87.9
°F
October 18, 17:37
Trend:
stableYesterday:
88.1°FTomorrow:
87.9°F
Sunrise:
Sunset:
Day Length:
11 h. 37 min.San Francisco in October
Minimum:
72.8°FAverage:
77.9°FMaximum:
79.9°FSea water temperature in San Francisco today
As of now, in San Francisco, the water temperature is 87.9°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 0.8°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 is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 88.4°F on 2024, while the historical minimum was 85.8°F on 2022.
Daily water temperature in San Francisco
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 4 | 88.3°F | 87.3°F | 87.2°F |
| Oct 5 | 88.2°F | 87.1°F | 87.2°F |
| Oct 6 | 88.8°F | 86.9°F | 87.1°F |
| Oct 7 | 88.4°F | 86.8°F | 87.0°F |
| Oct 8 | 87.9°F | 87.9°F | 87.1°F |
| Oct 9 | 88.3°F | 87.1°F | 87.1°F |
| Oct 10 | 88.4°F | 87.0°F | 87.1°F |
| Oct 11 | 88.4°F | 86.9°F | 87.1°F |
| Oct 12 | 87.8°F | 87.0°F | 87.0°F |
| Oct 13 | 87.8°F | 86.7°F | 87.0°F |
| Oct 14 | 88.0°F | 86.6°F | 86.8°F |
| Oct 15 | 88.5°F | 86.3°F | 86.9°F |
| Oct 16 | 88.4°F | 86.4°F | 87.0°F |
| Oct 17 | 88.1°F | 86.3°F | 87.0°F |
| Oct 18 | 87.9°F | 87.1°F | 87.0°F |
| Oct 19 | 87.9°F | 87.4°F | 87.0°F |
| Oct 20 | 87.7°F | 87.1°F | 86.8°F |
| Oct 21 | 87.4°F | 86.6°F | 86.5°F |
| Oct 22 | 87.3°F | 86.8°F | 86.5°F |
| Oct 23 | 87.2°F | 87.4°F | 86.4°F |
| Oct 24 | 87.1°F | 87.4°F | 86.3°F |
| Oct 25 | 87.2°F | 88.3°F | 86.4°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.