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

80.8

°F

January 3, 10:28

Trend:

stable

Yesterday:

80.9°F

Tomorrow:

80.9°F

Sunrise:

06:08

Sunset:

17:31

Day Length:

11 h. 23 min.

San Francisco in January

Minimum:

80.3°F

Average:

81.4°F

Maximum:

82.3°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 80.8°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.3°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 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 2024, while the historical minimum was 78.9°F on 2015.

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 histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 80.7°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 1 81.3°F 82.3°F 81.4°F
Jan 2 80.9°F 82.4°F 81.3°F
Jan 3 80.8°F 82.4°F 81.1°F
Jan 4 80.9°F 83.1°F 81.2°F
Jan 5 80.9°F 82.9°F 81.2°F
Jan 6 80.8°F 82.7°F 81.1°F
Jan 7 80.7°F 82.3°F 81.0°F
Jan 8 80.6°F 82.2°F 80.9°F
Jan 9 80.5°F 82.0°F 80.8°F
Jan 10 80.5°F 82.2°F 80.9°F
Dec 20 82.4°F 82.5°F 82.1°F
Dec 21 82.3°F 82.5°F 82.0°F
Dec 22 82.2°F 82.5°F 81.8°F
Dec 23 81.9°F 82.4°F 81.7°F
Dec 24 81.7°F 82.5°F 81.6°F
Dec 25 81.5°F 82.8°F 81.6°F
Dec 26 81.4°F 83.0°F 81.6°F
Dec 27 81.2°F 82.7°F 81.5°F
Dec 28 81.0°F 82.4°F 81.4°F
Dec 29 81.1°F 82.8°F 81.6°F
Dec 30 81.1°F 82.7°F 81.4°F
Dec 31 81.3°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 June 14, 2024, reaching a 88.4°F. While the coldest temperature occurred on January 13, 2015, dipping to 78.2°F. The average readings by season are 81.1°F in Winter, 83.6°F in Spring, 85.7°F in Summer, and 84.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Padang 80.9°F 13mi
Santo Domingo 80.9°F 14mi
San Francisco 81.2°F 19mi
San Francisco 80.2°F 23mi
Barcelona 81.2°F 27mi
San Jose 80.0°F 31mi

* current water temperature in this city

** straight line distance from San Francisco