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

82.3

°F

November 12, 20:31

Trend:

stable

Yesterday:

82.4°F

Tomorrow:

82.4°F

Sunrise:

05:49

Sunset:

17:15

Day Length:

11 h. 26 min.

San Francisco in November

Minimum:

79.2°F

Average:

80.9°F

Maximum:

82.3°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 82.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.1°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 stay about the same.

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 84.5°F on 2015, while the historical minimum was 82.8°F on 2017.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 82.2°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 29 84.2°F 83.9°F 84.7°F
Oct 30 84.1°F 83.9°F 84.7°F
Oct 31 84.0°F 83.6°F 84.5°F
Nov 1 83.7°F 83.5°F 84.3°F
Nov 2 83.6°F 83.6°F 84.3°F
Nov 3 83.4°F 83.5°F 84.1°F
Nov 4 83.3°F 83.9°F 84.1°F
Nov 5 83.3°F 83.8°F 84.0°F
Nov 6 83.0°F 84.1°F 83.9°F
Nov 7 82.7°F 84.0°F 83.9°F
Nov 8 82.8°F 83.8°F 83.8°F
Nov 9 82.5°F 83.6°F 83.6°F
Nov 10 83.0°F 83.4°F 83.4°F
Nov 11 82.4°F 83.4°F 83.3°F
Nov 12 82.3°F 83.5°F 83.4°F
Nov 13 82.4°F 83.5°F 83.5°F
Nov 14 82.4°F 83.5°F 83.5°F
Nov 15 82.4°F 84.4°F 83.5°F
Nov 16 82.3°F 84.2°F 83.4°F
Nov 17 82.2°F 84.0°F 83.3°F
Nov 18 82.0°F 83.8°F 83.1°F
Nov 19 81.9°F 84.2°F 83.0°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 17, 2024, reaching a 89.2°F. While the coldest temperature occurred on February 14, 2015, dipping to 78.7°F. The average readings by season are 81.0°F in Winter, 82.8°F in Spring, 84.8°F in Summer, and 85.0°F in Autumn.