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 18.19°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.

64.7

°F

August 15, 12:14

Trend:

increasing

Yesterday:

63.1°F

Tomorrow:

65.0°F

Sunrise:

06:25

Sunset:

20:03

Day Length:

13 h. 38 min.

San Francisco in August

Minimum:

50.9°F

Average:

52.8°F

Maximum:

55.7°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 64.7°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 1.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 66.5°F on 2021, while the historical minimum was 59.3°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 64.7°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
Aug 1	62.9°F	61.3°F	61.4°F
Aug 2	62.9°F	61.9°F	61.5°F
Aug 3	63.4°F	62.3°F	61.8°F
Aug 4	62.4°F	64.0°F	62.0°F
Aug 5	63.8°F	63.0°F	62.1°F
Aug 6	63.2°F	61.8°F	62.0°F
Aug 7	63.3°F	62.1°F	61.9°F
Aug 8	63.6°F	62.8°F	62.2°F
Aug 9	63.9°F	63.9°F	62.5°F
Aug 10	63.7°F	63.8°F	62.4°F
Aug 11	63.6°F	63.6°F	62.2°F
Aug 12	64.1°F	64.0°F	62.6°F
Aug 13	63.4°F	64.1°F	62.7°F
Aug 14	63.1°F	64.2°F	62.8°F
Aug 15	64.7°F	64.3°F	62.9°F
Aug 16	65.0°F	62.8°F	63.1°F
Aug 17	64.7°F	61.6°F	62.9°F
Aug 18	64.7°F	61.6°F	62.9°F
Aug 19	64.7°F	60.4°F	62.9°F
Aug 20	64.6°F	61.8°F	62.8°F
Aug 21	64.5°F	62.2°F	62.7°F
Aug 22	64.7°F	62.2°F	62.9°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	67.0°F	8mi
Redwood City	70.4°F	22mi
San Jose	68.3°F	42mi

* current water temperature in this city

** straight line distance from San Francisco