What is the current water temperature in San Francisco?

As of now, in San Francisco, the water temperature is 27.69°C. It's safe to say that the water is comfortably warm for various water-related activities.

Philippines > 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.

81.8

°F

February 1, 16:51

Trend:

decreasing

Yesterday:

82.0°F

Tomorrow:

81.7°F

Sunrise:

06:06

Sunset:

17:46

Day Length:

11 h. 40 min.

San Francisco in February

Minimum:

82.1°F

Average:

83.3°F

Maximum:

84.6°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 81.8°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.4°F lower 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 slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. 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 83.4°F on 2025, while the historical minimum was 80.0°F on 2019.

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 81.8°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
Jan 18	83.1°F	83.5°F	82.6°F
Jan 19	82.7°F	84.0°F	82.6°F
Jan 20	82.7°F	83.6°F	82.5°F
Jan 21	82.9°F	83.6°F	82.5°F
Jan 22	82.9°F	83.4°F	82.5°F
Jan 23	82.4°F	83.3°F	82.3°F
Jan 24	82.2°F	83.8°F	82.3°F
Jan 25	81.6°F	83.7°F	82.3°F
Jan 26	81.5°F	84.5°F	82.3°F
Jan 27	82.0°F	84.4°F	82.4°F
Jan 28	82.1°F	84.0°F	82.1°F
Jan 29	82.5°F	83.7°F	82.2°F
Jan 30	82.1°F	83.7°F	82.2°F
Jan 31	82.0°F	83.3°F	82.3°F
Feb 1	81.8°F	83.4°F	82.2°F
Feb 2	81.7°F	83.1°F	82.1°F
Feb 3	81.7°F	82.8°F	82.1°F
Feb 4	82.0°F	84.1°F	82.4°F
Feb 5	81.9°F	83.4°F	82.3°F
Feb 6	81.9°F	83.0°F	82.3°F
Feb 7	81.6°F	82.6°F	82.0°F
Feb 8	81.6°F	83.3°F	82.0°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 June 5, 2017, reaching a 88.2°F. While the coldest temperature occurred on February 3, 2019, dipping to 79.8°F. The average readings by season are 82.9°F in Winter, 84.1°F in Spring, 86.3°F in Summer, and 85.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Santiago	81.9°F	6mi
Merida	81.6°F	21mi
San Juan	81.6°F	27mi
San Francisco	82.4°F	34mi

* current water temperature in this city

** straight line distance from San Francisco