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

81.7

°F

January 30, 23:31

Trend:

increasing

Yesterday:

81.3°F

Tomorrow:

81.9°F

Sunrise:

06:02

Sunset:

17:43

Day Length:

11 h. 41 min.

San Francisco in February

Minimum:

81.5°F

Average:

82.5°F

Maximum:

83.6°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 81.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.3°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 rise a bit.

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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 82.4°F on 2021, while the historical minimum was 80.1°F on 2019.

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 81.8°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
Jan 16 82.1°F 82.0°F 81.9°F
Jan 17 82.0°F 82.5°F 81.9°F
Jan 18 83.1°F 82.1°F 81.9°F
Jan 19 82.8°F 82.5°F 81.9°F
Jan 20 82.9°F 82.4°F 81.9°F
Jan 21 82.7°F 82.3°F 81.8°F
Jan 22 82.3°F 82.4°F 81.9°F
Jan 23 82.1°F 82.5°F 81.8°F
Jan 24 81.8°F 82.3°F 81.8°F
Jan 25 81.2°F 82.5°F 81.7°F
Jan 26 81.2°F 82.4°F 81.6°F
Jan 27 82.0°F 82.4°F 81.6°F
Jan 28 82.0°F 82.2°F 81.6°F
Jan 29 81.3°F 82.0°F 81.4°F
Jan 30 81.7°F 82.1°F 81.5°F
Jan 31 81.9°F 81.6°F 81.6°F
Feb 1 81.8°F 81.9°F 81.5°F
Feb 2 81.7°F 82.0°F 81.4°F
Feb 3 81.7°F 82.0°F 81.4°F
Feb 4 81.8°F 82.2°F 81.5°F
Feb 5 81.8°F 82.1°F 81.6°F
Feb 6 81.7°F 82.3°F 81.4°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 February 16, 2019, dipping to 79.3°F. The average readings by season are 82.1°F in Winter, 83.0°F in Spring, 85.0°F in Summer, and 84.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
San Juan 81.9°F 14mi
San Francisco 81.9°F 27mi
San Jose 81.7°F 29mi
San Francisco 82.1°F 43mi
Trinidad 82.5°F 56mi

* current water temperature in this city

** straight line distance from San Francisco