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

85.6

°F

April 19, 11:08

Trend:

stable

Yesterday:

85.6°F

Tomorrow:

85.6°F

Sunrise:

05:30

Sunset:

17:58

Day Length:

12 h. 28 min.

San Francisco in April

Minimum:

79.6°F

Average:

81.3°F

Maximum:

83.1°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 85.6°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 1.7°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 85.4°F on 2024, while the historical minimum was 82.6°F on 2015.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 85.9°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
Apr 5 83.3°F 83.9°F 82.6°F
Apr 6 82.8°F 84.1°F 82.6°F
Apr 7 83.0°F 84.3°F 82.7°F
Apr 8 83.3°F 84.0°F 82.7°F
Apr 9 83.9°F 83.9°F 82.8°F
Apr 10 83.8°F 84.5°F 82.9°F
Apr 11 83.4°F 84.7°F 83.0°F
Apr 12 84.5°F 84.6°F 83.3°F
Apr 13 84.5°F 83.8°F 83.4°F
Apr 14 84.6°F 84.6°F 83.4°F
Apr 15 85.0°F 84.3°F 83.5°F
Apr 16 85.4°F 84.5°F 83.6°F
Apr 17 85.4°F 84.8°F 83.9°F
Apr 18 85.6°F 85.0°F 83.9°F
Apr 19 85.6°F 85.4°F 84.0°F
Apr 20 85.6°F 85.6°F 84.0°F
Apr 21 85.7°F 85.8°F 84.1°F
Apr 22 85.9°F 85.5°F 84.2°F
Apr 23 85.9°F 85.2°F 84.2°F
Apr 24 86.0°F 85.1°F 84.3°F
Apr 25 86.1°F 85.9°F 84.4°F
Apr 26 85.9°F 84.6°F 84.2°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

January

February

March

April

May

June

July

August

September

October

November

December

In San Francisco, the water temperature is comfortable for swimming all year round.
The warmest water in San Francisco was recorded on June 14, 2024, reaching a 88.4°F. While the coldest temperature occurred on January 13, 2015, dipping to 78.2°F. The average readings by season are 81.1°F in Winter, 83.6°F in Spring, 85.7°F in Summer, and 84.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Padang 85.8°F 13mi
Santo Domingo 85.8°F 14mi
San Francisco 86.0°F 19mi
San Francisco 82.3°F 23mi
Barcelona 84.6°F 27mi
San Jose 84.9°F 31mi

* current water temperature in this city

** straight line distance from San Francisco