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

83.0

°F

April 24, 12:52

Trend:

increasing

Yesterday:

82.6°F

Tomorrow:

83.1°F

Sunrise:

06:05

Sunset:

18:28

Day Length:

12 h. 23 min.

San Francisco in April

Minimum:

79.2°F

Average:

81.9°F

Maximum:

84.0°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 83.0°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 1.4°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature closely matches the previous two weeks' average, indicating a stable 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 84.5°F on 2022, while the historical minimum was 79.7°F on 2016.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 83.6°F, with minimum temperature starting at 83.1°F, while the maximum might reach 84.0°F.

Daily water temperature in San Francisco

Date Current Year

actual* / forecast**

last year 10 years average
Apr 10 83.0°F 82.7°F 79.6°F
Apr 11 83.4°F 82.8°F 80.2°F
Apr 12 83.3°F 82.9°F 80.5°F
Apr 13 83.3°F 83.6°F 80.8°F
Apr 14 83.3°F 84.0°F 81.0°F
Apr 15 83.5°F 82.6°F 80.7°F
Apr 16 82.5°F 81.7°F 80.7°F
Apr 17 84.4°F 81.4°F 80.9°F
Apr 18 82.4°F 79.7°F 80.5°F
Apr 19 82.9°F 79.8°F 80.6°F
Apr 20 82.8°F 80.3°F 80.7°F
Apr 21 82.2°F 81.2°F 80.8°F
Apr 22 82.2°F 80.3°F 80.9°F
Apr 23 82.6°F 81.4°F 81.2°F
Apr 24 83.0°F 82.7°F 81.5°F
Apr 25 83.1°F 82.9°F 81.6°F
Apr 26 83.4°F 82.4°F 82.0°F
Apr 27 83.4°F 82.3°F 82.0°F
Apr 28 83.5°F 82.3°F 82.1°F
Apr 29 83.8°F 82.3°F 82.4°F
Apr 30 84.0°F 82.4°F 82.5°F
May 1 83.9°F 81.9°F 82.4°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 6, 2023, reaching a 87.5°F. While the coldest temperature occurred on February 23, 2023, dipping to 73.1°F. The average readings by season are 80.7°F in Winter, 80.6°F in Spring, 84.0°F in Summer, and 83.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Panamá 83.0°F 1mi
Veracruz 82.9°F 10mi
San José 82.8°F 16mi
Miramar 83.4°F 42mi
San José 82.8°F 42mi

* current water temperature in this city

** straight line distance from San Francisco