What is the current water temperature in San Diego?

Q: What is the current water temperature in San Diego?

As of now, in San Diego, the water temperature is 16.39°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

United States > San Diego

Water temperature in San Diego

Detailed information about the current water temperature in San Diego. 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.

61.5

°F

May 10, 00:18

Trend:

increasing

Yesterday:

61.3°F

Tomorrow:

61.6°F

Sunrise:

05:54

Sunset:

19:37

Day Length:

13 h. 43 min.

San Diego in May

Minimum:

56.2°F

Average:

59.5°F

Maximum:

61.6°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 61.5°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.2°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. 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 minimum temperature for this date. The maximum temperature recorded for this date was 66.9°F on 2020, while the historical minimum was 62.1°F on 2017.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 61.4°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 Diego

Date	Current Year actual* / forecast**	last year	10 years average
Apr 26	59.1°F	61.0°F	61.4°F
Apr 27	59.4°F	60.4°F	61.4°F
Apr 28	59.9°F	60.4°F	61.6°F
Apr 29	60.1°F	61.0°F	62.0°F
Apr 30	60.4°F	61.1°F	62.1°F
May 1	60.4°F	62.1°F	62.3°F
May 2	60.4°F	62.6°F	62.4°F
May 3	60.6°F	63.2°F	62.9°F
May 4	60.5°F	64.0°F	63.2°F
May 5	59.3°F	64.4°F	63.4°F
May 6	59.9°F	64.4°F	63.4°F
May 7	61.0°F	63.7°F	63.2°F
May 8	60.8°F	63.5°F	63.1°F
May 9	61.3°F	63.4°F	63.6°F
May 10	61.5°F	63.9°F	63.7°F
May 11	61.6°F	64.0°F	63.8°F
May 12	61.6°F	64.1°F	63.8°F
May 13	61.6°F	64.0°F	63.8°F
May 14	61.5°F	63.9°F	63.7°F
May 15	61.3°F	65.3°F	63.5°F
May 16	61.2°F	64.9°F	63.4°F
May 17	61.1°F	64.8°F	63.3°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 Diego by month

In an average year, San Diego offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in San Diego was recorded on August 7, 2018, reaching a 75.8°F. While the coldest temperature occurred on January 15, 2025, dipping to 55.5°F. The average readings by season are 59.7°F in Winter, 61.6°F in Spring, 68.5°F in Summer, and 66.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	60.6°F	17mi
Oceanside	62.6°F	35mi
Laguna Beach	62.0°F	67mi

* current water temperature in this city

** straight line distance from San Diego