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 15.13°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.

59.2

°F

June 1, 10:02

Trend:

increasing

Yesterday:

58.9°F

Tomorrow:

59.5°F

Sunrise:

05:49

Sunset:

20:26

Day Length:

14 h. 37 min.

San Francisco in June

Minimum:

50.9°F

Average:

52.8°F

Maximum:

56.7°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 59.2°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 0.5°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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 61.7°F on 2020, while the historical minimum was 55.0°F on 2015.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 59.6°F, with minimum temperature starting at 59.2°F, while the maximum might reach 60.3°F.

Daily water temperature in San Francisco

Date	Current Year actual* / forecast**	last year	10 years average
May 18	59.4°F	54.2°F	57.1°F
May 19	59.4°F	54.5°F	57.0°F
May 20	59.1°F	55.8°F	57.5°F
May 21	59.8°F	56.6°F	57.5°F
May 22	58.9°F	57.9°F	57.6°F
May 23	59.5°F	58.7°F	57.8°F
May 24	59.3°F	58.6°F	57.8°F
May 25	59.5°F	58.4°F	57.9°F
May 26	58.9°F	58.8°F	57.9°F
May 27	58.9°F	58.0°F	58.1°F
May 28	57.8°F	58.4°F	58.5°F
May 29	59.1°F	57.7°F	58.6°F
May 30	57.8°F	57.7°F	58.8°F
May 31	58.9°F	58.4°F	58.7°F
Jun 1	59.2°F	58.3°F	58.8°F
Jun 2	59.5°F	59.0°F	59.0°F
Jun 3	59.5°F	59.1°F	59.0°F
Jun 4	59.6°F	57.4°F	59.2°F
Jun 5	59.2°F	57.8°F	58.8°F
Jun 6	59.6°F	58.6°F	59.1°F
Jun 7	59.7°F	58.0°F	59.3°F
Jun 8	60.3°F	57.9°F	59.8°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	62.0°F	8mi
Redwood City	66.4°F	22mi
San Jose	64.6°F	42mi

* current water temperature in this city

** straight line distance from San Francisco