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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

86.6

°F

November 21, 21:24

Trend:

stable

Yesterday:

86.4°F

Tomorrow:

86.4°F

Sunrise:

05:40

Sunset:

17:17

Day Length:

11 h. 37 min.

San Francisco in November

Minimum:

79.6°F

Average:

82.3°F

Maximum:

84.5°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 86.6°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 1.2°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 fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 87.0°F on 2021, while the historical minimum was 84.5°F on 2015.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 86.4°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
Nov 7 86.3°F 88.1°F 85.6°F
Nov 8 86.5°F 87.7°F 85.7°F
Nov 9 86.5°F 86.6°F 85.7°F
Nov 10 86.3°F 86.4°F 85.5°F
Nov 11 86.5°F 88.1°F 85.7°F
Nov 12 86.2°F 87.3°F 85.4°F
Nov 13 86.1°F 87.4°F 85.3°F
Nov 14 86.1°F 87.0°F 85.3°F
Nov 15 86.8°F 87.0°F 85.3°F
Nov 16 86.4°F 86.6°F 85.4°F
Nov 17 86.1°F 86.2°F 85.4°F
Nov 18 86.4°F 85.9°F 85.4°F
Nov 19 86.4°F 85.9°F 85.5°F
Nov 20 86.4°F 85.8°F 85.7°F
Nov 21 86.6°F 85.7°F 85.5°F
Nov 22 86.4°F 85.3°F 85.2°F
Nov 23 86.5°F 85.0°F 85.4°F
Nov 24 86.5°F 84.7°F 85.3°F
Nov 25 86.4°F 85.0°F 85.3°F
Nov 26 86.4°F 85.4°F 85.2°F
Nov 27 86.2°F 85.3°F 85.0°F
Nov 28 86.2°F 85.2°F 85.0°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

January

February

March

April

May

June

July

August

September

October

November

December

In San Francisco, the water temperature is comfortable for swimming all year round.
The warmest water in San Francisco was recorded on May 18, 2024, reaching a 89.3°F. While the coldest temperature occurred on January 25, 2014, dipping to 78.9°F. The average readings by season are 82.8°F in Winter, 84.7°F in Spring, 86.1°F in Summer, and 85.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Trinidad 86.3°F 6mi
Santiago 86.0°F 30mi
Cebu City 85.8°F 31mi
San Francisco 85.8°F 34mi

* current water temperature in this city

** straight line distance from San Francisco