All data are in degrees Fahrenheit

en

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

86.5

°F

May 10, 01:49

Trend:

increasing

Yesterday:

86.5°F

Tomorrow:

86.7°F

Sunrise:

05:22

Sunset:

17:56

Day Length:

12 h. 34 min.

San Francisco in May

Minimum:

81.2°F

Average:

82.9°F

Maximum:

84.5°F

Sea water temperature in San Francisco today

As of now, in San Francisco, the water temperature is 86.5°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 1.3°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 rise a bit.

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 86.5°F on 2023, while the historical minimum was 84.2°F on 2022.

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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 86.8°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
Apr 26 85.3°F 85.1°F 84.5°F
Apr 27 85.3°F 85.2°F 84.5°F
Apr 28 85.4°F 84.4°F 84.5°F
Apr 29 85.2°F 84.9°F 84.6°F
Apr 30 85.3°F 84.6°F 84.6°F
May 1 85.8°F 86.5°F 85.1°F
May 2 85.9°F 85.2°F 84.9°F
May 3 85.9°F 84.2°F 84.9°F
May 4 85.9°F 84.9°F 85.0°F
May 5 86.0°F 85.2°F 85.1°F
May 6 85.9°F 85.2°F 85.2°F
May 7 86.0°F 85.0°F 85.3°F
May 8 85.9°F 85.4°F 85.3°F
May 9 86.5°F 85.1°F 85.2°F
May 10 86.5°F 85.6°F 85.2°F
May 11 86.7°F 85.8°F 85.4°F
May 12 86.7°F 85.8°F 85.4°F
May 13 86.8°F 85.9°F 85.5°F
May 14 86.8°F 85.9°F 85.6°F
May 15 86.9°F 85.4°F 85.6°F
May 16 86.9°F 85.6°F 85.7°F
May 17 86.9°F 85.8°F 85.6°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 January 13, 2015, dipping to 78.6°F. The average readings by season are 82.8°F in Winter, 84.0°F in Spring, 86.2°F in Summer, and 85.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Santiago 86.4°F 6mi
Merida 86.7°F 21mi
San Juan 86.5°F 27mi
San Francisco 87.5°F 34mi

* current water temperature in this city

** straight line distance from San Francisco