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

84.1

°F

November 26, 17:12

Trend:

stable

Yesterday:

83.8°F

Tomorrow:

83.9°F

Sunrise:

05:42

Sunset:

17:18

Day Length:

11 h. 36 min.

San Francisco in December

Minimum:

79.1°F

Average:

82.4°F

Maximum:

84.8°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 84.1°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 1.1°F lower 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 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 minimum temperature for this date. The maximum temperature recorded for this date was 86.1°F on 2022, while the historical minimum was 83.9°F on 2018.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 83.9°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
Nov 12 85.0°F 86.1°F 85.4°F
Nov 13 85.2°F 86.1°F 85.4°F
Nov 14 85.0°F 86.1°F 85.4°F
Nov 15 84.8°F 86.8°F 85.4°F
Nov 16 84.6°F 86.4°F 85.4°F
Nov 17 84.3°F 86.1°F 85.4°F
Nov 18 85.0°F 86.4°F 85.3°F
Nov 19 84.9°F 86.4°F 85.5°F
Nov 20 84.6°F 86.4°F 85.6°F
Nov 21 83.3°F 86.6°F 85.5°F
Nov 22 83.2°F 86.3°F 85.2°F
Nov 23 83.8°F 86.6°F 85.3°F
Nov 24 83.8°F 85.8°F 85.2°F
Nov 25 83.8°F 85.8°F 85.2°F
Nov 26 84.1°F 85.0°F 85.2°F
Nov 27 83.9°F 84.9°F 85.1°F
Nov 28 84.0°F 85.1°F 85.1°F
Nov 29 84.1°F 85.3°F 85.2°F
Nov 30 83.9°F 84.9°F 85.0°F
Dec 1 83.8°F 84.5°F 84.9°F
Dec 2 83.7°F 84.9°F 84.8°F
Dec 3 83.6°F 86.1°F 84.7°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 May 18, 2024, reaching a 89.3°F. While the coldest temperature occurred on January 13, 2015, dipping to 79.0°F. The average readings by season are 83.0°F in Winter, 84.9°F in Spring, 86.2°F in Summer, and 85.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Trinidad 84.0°F 6mi
Santiago 84.6°F 30mi
Cebu City 83.9°F 31mi
San Francisco 84.6°F 34mi

* current water temperature in this city

** straight line distance from San Francisco