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 17.21°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

63.0

°F

July 22, 11:31

Trend:

increasing

Yesterday:

62.2°F

Tomorrow:

63.3°F

Sunrise:

06:05

Sunset:

20:27

Day Length:

14 h. 22 min.

San Francisco in July

Minimum:

50.6°F

Average:

52.7°F

Maximum:

55.2°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 63.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.0°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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 62.9°F on 2021, while the historical minimum was 57.2°F on 2016.

latest data

last year

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 63.5°F, with minimum temperature starting at 63.3°F, while the maximum might reach 63.9°F.

Daily water temperature in San Francisco

Date	Current Year actual* / forecast**	last year	10 years average
Jul 8	62.8°F	60.8°F	61.2°F
Jul 9	63.8°F	60.6°F	61.2°F
Jul 10	64.8°F	61.4°F	61.3°F
Jul 11	63.9°F	61.6°F	61.0°F
Jul 12	61.8°F	62.5°F	61.2°F
Jul 13	61.2°F	61.1°F	60.8°F
Jul 14	64.2°F	61.6°F	61.3°F
Jul 15	63.8°F	60.7°F	61.3°F
Jul 16	62.1°F	59.2°F	61.0°F
Jul 17	61.8°F	58.5°F	60.8°F
Jul 18	61.9°F	58.1°F	60.9°F
Jul 19	61.5°F	58.8°F	60.8°F
Jul 20	61.9°F	60.2°F	61.1°F
Jul 21	62.2°F	60.4°F	61.2°F
Jul 22	63.0°F	61.5°F	60.9°F
Jul 23	63.3°F	61.9°F	61.3°F
Jul 24	63.4°F	61.5°F	61.4°F
Jul 25	63.3°F	61.0°F	61.2°F
Jul 26	63.5°F	61.6°F	61.4°F
Jul 27	63.9°F	62.3°F	61.9°F
Jul 28	63.8°F	62.3°F	61.7°F
Jul 29	63.6°F	62.4°F	61.6°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, 56.6°F in Spring, 61.3°F in Summer, and 60.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Oakland	65.2°F	8mi
Redwood City	70.3°F	22mi
San Jose	69.0°F	42mi

* current water temperature in this city

** straight line distance from San Francisco