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 29.03°C. 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.

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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.

84.3

°F

November 21, 06:37

Trend:

stable

Yesterday:

84.0°F

Tomorrow:

84.2°F

Sunrise:

05:54

Sunset:

17:14

Day Length:

11 h. 20 min.

San Francisco in November

Minimum:

79.2°F

Average:

81.0°F

Maximum:

82.3°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 84.3°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 1.8°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

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 84.0°F on 2015, while the historical minimum was 81.6°F on 2014.

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 84.2°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
Nov 7	84.0°F	84.1°F	83.9°F
Nov 8	83.8°F	83.9°F	83.8°F
Nov 9	83.6°F	83.7°F	83.6°F
Nov 10	83.4°F	82.7°F	83.3°F
Nov 11	83.4°F	83.2°F	83.3°F
Nov 12	83.4°F	83.1°F	83.3°F
Nov 13	83.4°F	83.4°F	83.4°F
Nov 14	83.4°F	83.4°F	83.4°F
Nov 15	84.4°F	83.2°F	83.4°F
Nov 16	84.2°F	83.7°F	83.3°F
Nov 17	84.0°F	83.6°F	83.2°F
Nov 18	83.8°F	83.2°F	83.0°F
Nov 19	84.2°F	83.0°F	82.9°F
Nov 20	84.0°F	82.6°F	82.8°F
Nov 21	84.3°F	82.0°F	82.5°F
Nov 22	84.2°F	82.2°F	82.5°F
Nov 23	84.3°F	82.9°F	82.5°F
Nov 24	84.3°F	82.5°F	82.5°F
Nov 25	84.3°F	82.6°F	82.5°F
Nov 26	84.2°F	82.4°F	82.4°F
Nov 27	84.2°F	83.0°F	82.5°F
Nov 28	84.1°F	83.1°F	82.3°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 17, 2024, reaching a 89.2°F. While the coldest temperature occurred on February 14, 2015, dipping to 78.7°F. The average readings by season are 81.0°F in Winter, 82.7°F in Spring, 84.7°F in Summer, and 84.9°F in Autumn.