All data are in degrees Fahrenheit

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Water temperature in San Francisco

Detailed information about the current water temperature in San Francisco. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in San Francisco now

85.0

°F

November 7, 19:33

Trend:

stable

Yesterday:

84.5°F

Tomorrow:

85.0°F

Sunrise:

05:31

Sunset:

17:15

Day Length:

11 h. 44 min.

San Francisco in November

Minimum:

79.6°F

Average:

81.8°F

Maximum:

83.1°F

Sea 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 0.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 85.7°F on 2024, while the historical minimum was 83.2°F on 2018.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 84.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in San Francisco

Date Current Year

actual* / forecast**

last year 10 years average
Oct 24 84.5°F 85.2°F 84.8°F
Oct 25 85.2°F 85.1°F 84.7°F
Oct 26 85.1°F 84.8°F 84.7°F
Oct 27 84.7°F 84.8°F 84.6°F
Oct 28 84.2°F 84.7°F 84.6°F
Oct 29 84.5°F 84.7°F 84.7°F
Oct 30 85.2°F 84.7°F 84.6°F
Oct 31 85.0°F 84.5°F 84.5°F
Nov 1 85.7°F 84.6°F 84.5°F
Nov 2 85.7°F 84.7°F 84.6°F
Nov 3 85.6°F 84.5°F 84.5°F
Nov 4 85.4°F 84.4°F 84.4°F
Nov 5 85.3°F 84.4°F 84.3°F
Nov 6 84.5°F 84.3°F 84.3°F
Nov 7 85.0°F 85.7°F 84.3°F
Nov 8 85.0°F 85.1°F 84.2°F
Nov 9 85.0°F 85.1°F 84.3°F
Nov 10 84.9°F 85.0°F 84.2°F
Nov 11 85.0°F 85.1°F 84.3°F
Nov 12 84.9°F 85.0°F 84.2°F
Nov 13 84.8°F 84.9°F 84.0°F
Nov 14 84.7°F 84.8°F 83.9°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.

Sea water temperature in San Francisco by month

In San Francisco, the water temperature is comfortable for swimming all year round.
The warmest water in San Francisco was recorded on September 5, 2017, reaching a 86.6°F. While the coldest temperature occurred on January 18, 2015, dipping to 78.8°F. The average readings by season are 81.9°F in Winter, 82.9°F in Spring, 84.8°F in Summer, and 84.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
San Juan 84.9°F 14mi
San Francisco 85.1°F 27mi
San Jose 84.9°F 29mi
San Francisco 85.6°F 43mi
Trinidad 85.6°F 56mi

* current water temperature in this city

** straight line distance from San Francisco