What is the current water temperature in San Francisco?

Q: What is the current water temperature in San Francisco?

As of now, in San Francisco, the water temperature is 12.4°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

United States > San Francisco

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.

54.3

°F

March 14, 20:26

Trend:

increasing

Yesterday:

54.0°F

Tomorrow:

54.6°F

Sunrise:

07:23

Sunset:

19:16

Day Length:

11 h. 53 min.

San Francisco in March

Minimum:

51.0°F

Average:

52.6°F

Maximum:

55.3°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 54.3°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.7°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 rise 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 58.5°F on 2015, while the historical minimum was 52.7°F on 2023.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 54.6°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
Feb 28	54.0°F	56.3°F	53.9°F
Mar 1	54.0°F	56.2°F	54.0°F
Mar 2	54.7°F	56.2°F	53.9°F
Mar 3	54.8°F	55.6°F	53.9°F
Mar 4	54.8°F	55.3°F	53.9°F
Mar 5	54.7°F	54.0°F	53.9°F
Mar 6	54.4°F	54.5°F	54.0°F
Mar 7	53.7°F	55.6°F	54.0°F
Mar 8	53.9°F	55.3°F	54.1°F
Mar 9	53.2°F	55.0°F	54.1°F
Mar 10	52.8°F	55.4°F	54.2°F
Mar 11	53.2°F	55.9°F	54.2°F
Mar 12	54.3°F	56.2°F	54.5°F
Mar 13	54.0°F	56.2°F	54.7°F
Mar 14	54.3°F	56.1°F	55.1°F
Mar 15	54.6°F	56.6°F	55.3°F
Mar 16	54.5°F	55.9°F	55.3°F
Mar 17	54.2°F	55.0°F	55.0°F
Mar 18	54.5°F	55.9°F	55.2°F
Mar 19	54.5°F	56.4°F	55.3°F
Mar 20	54.8°F	56.7°F	55.6°F
Mar 21	54.9°F	32.0°F	55.6°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 an average year, San Francisco offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in San Francisco was recorded on August 28, 2023, reaching a 67.4°F. While the coldest temperature occurred on March 4, 2023, dipping to 49.3°F. The average readings by season are 53.5°F in Winter, 56.3°F in Spring, 61.1°F in Summer, and 60.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Oakland	55.3°F	8mi
Redwood City	55.8°F	22mi
San Jose	55.4°F	42mi

* current water temperature in this city

** straight line distance from San Francisco