Water temperature in San Francisco
85.9
°F
August 24, 09:00
Trend:
increasingYesterday:
85.0°FTomorrow:
86.2°F
Sunrise:
Sunset:
Day Length:
12 h. 32 min.San Francisco in August
Minimum:
79.5°FAverage:
81.1°FMaximum:
82.6°FSea water temperature in San Francisco today
As of now, in San Francisco, the water temperature is 85.9°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 0.5°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.Recent sea temperature and forecast
Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 86.5°F on 2025, while the historical minimum was 84.4°F on 2016.
Daily water temperature in San Francisco
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 10 | 84.5°F | 85.4°F | 85.1°F |
| Aug 11 | 84.2°F | 85.4°F | 85.1°F |
| Aug 12 | 84.7°F | 86.1°F | 85.1°F |
| Aug 13 | 85.2°F | 86.0°F | 85.2°F |
| Aug 14 | 85.2°F | 86.0°F | 85.2°F |
| Aug 15 | 85.2°F | 86.6°F | 85.3°F |
| Aug 16 | 84.9°F | 86.6°F | 85.4°F |
| Aug 17 | 84.7°F | 86.3°F | 85.5°F |
| Aug 18 | 84.3°F | 85.5°F | 85.3°F |
| Aug 19 | 84.7°F | 85.9°F | 85.3°F |
| Aug 20 | 85.5°F | 85.9°F | 85.3°F |
| Aug 21 | 85.3°F | 86.0°F | 85.5°F |
| Aug 22 | 85.0°F | 86.4°F | 85.3°F |
| Aug 23 | 85.0°F | 86.0°F | 85.3°F |
| Aug 24 | 85.9°F | 86.5°F | 85.5°F |
| Aug 25 | 86.2°F | 86.5°F | 85.8°F |
| Aug 26 | 86.3°F | 86.8°F | 85.8°F |
| Aug 27 | 86.3°F | 86.6°F | 85.9°F |
| Aug 28 | 86.4°F | 86.4°F | 85.9°F |
| Aug 29 | 86.5°F | 86.4°F | 86.0°F |
| Aug 30 | 86.5°F | 86.5°F | 86.0°F |
| Aug 31 | 86.6°F | 86.5°F | 86.1°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.