What is the current water temperature in San Francisco?

As of now, in San Francisco, the water temperature is 27.58°C. It's safe to say that the water is comfortably warm for various water-related activities.

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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.

81.6

°F

February 22, 09:37

Trend:

increasing

Yesterday:

81.5°F

Tomorrow:

81.7°F

Sunrise:

06:10

Sunset:

17:54

Day Length:

11 h. 44 min.

San Francisco in February

Minimum:

80.0°F

Average:

81.2°F

Maximum:

83.0°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 81.6°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.7°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

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 81.8°F on 2019, while the historical minimum was 79.8°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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 81.7°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
Feb 8	77.9°F	80.9°F	80.3°F
Feb 9	78.0°F	80.8°F	80.2°F
Feb 10	78.5°F	81.1°F	80.3°F
Feb 11	78.6°F	81.0°F	80.2°F
Feb 12	79.3°F	81.4°F	80.4°F
Feb 13	78.9°F	81.4°F	80.3°F
Feb 14	79.9°F	81.6°F	80.4°F
Feb 15	79.3°F	81.6°F	80.5°F
Feb 16	80.0°F	81.9°F	80.7°F
Feb 17	80.2°F	81.6°F	80.7°F
Feb 18	80.1°F	81.4°F	80.7°F
Feb 19	80.3°F	81.3°F	80.9°F
Feb 20	81.0°F	81.4°F	80.9°F
Feb 21	81.5°F	81.3°F	81.0°F
Feb 22	81.6°F	81.4°F	81.0°F
Feb 23	81.7°F	81.6°F	81.0°F
Feb 24	81.6°F	81.5°F	80.9°F
Feb 25	81.6°F	81.4°F	80.9°F
Feb 26	81.7°F	81.5°F	81.0°F
Feb 27	81.7°F	81.8°F	81.0°F
Feb 28	81.6°F	81.6°F	80.9°F
Mar 1	82.0°F	81.7°F	81.0°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 8, 2026, dipping to 77.9°F. The average readings by season are 81.0°F in Winter, 82.9°F in Spring, 85.0°F in Summer, and 85.0°F in Autumn.