All data are in degrees Fahrenheit

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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.
Sea temperature in San Francisco now

84.2

°F

August 30, 03:01

Trend:

decreasing

Yesterday:

84.3°F

Tomorrow:

84.1°F

Sunrise:

05:33

Sunset:

17:57

Day Length:

12 h. 24 min.

San Francisco in September

Minimum:

77.9°F

Average:

79.7°F

Maximum:

80.9°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 84.2°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 0.6°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 closely matches the previous two weeks' average, indicating a stable trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 85.6°F on 2020, while the historical minimum was 83.9°F on 2015.

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 84.0°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 16 84.5°F 85.5°F 84.7°F
Aug 17 84.5°F 85.7°F 84.7°F
Aug 18 84.9°F 85.5°F 84.7°F
Aug 19 84.8°F 85.5°F 84.7°F
Aug 20 84.7°F 85.7°F 84.7°F
Aug 21 84.5°F 85.5°F 84.7°F
Aug 22 84.5°F 85.8°F 84.6°F
Aug 23 84.5°F 85.5°F 84.5°F
Aug 24 83.7°F 85.4°F 84.4°F
Aug 25 83.8°F 85.5°F 84.5°F
Aug 26 83.9°F 85.6°F 84.5°F
Aug 27 84.0°F 85.6°F 84.7°F
Aug 28 84.2°F 85.8°F 84.8°F
Aug 29 84.3°F 85.7°F 84.9°F
Aug 30 84.2°F 85.5°F 84.8°F
Aug 31 84.1°F 85.3°F 84.7°F
Sep 1 84.1°F 85.2°F 84.7°F
Sep 2 83.9°F 85.0°F 84.5°F
Sep 3 83.9°F 84.1°F 84.5°F
Sep 4 83.9°F 84.3°F 84.5°F
Sep 5 84.0°F 84.4°F 84.6°F
Sep 6 83.9°F 84.3°F 84.5°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 16, 2016, reaching a 87.0°F. While the coldest temperature occurred on January 29, 2019, dipping to 76.9°F. The average readings by season are 79.8°F in Winter, 81.4°F in Spring, 84.6°F in Summer, and 83.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Barcelona 85.1°F 19mi
San Francisco 84.7°F 23mi
Padang 84.7°F 35mi
Santo Domingo 84.7°F 36mi

* current water temperature in this city

** straight line distance from San Francisco