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 18.93°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.

66.1

°F

May 30, 15:31

Trend:

stable

Yesterday:

66.5°F

Tomorrow:

66.3°F

Sunrise:

05:42

Sunset:

19:50

Day Length:

14 h. 8 min.

San Diego in June

Minimum:

56.2°F

Average:

59.4°F

Maximum:

61.5°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 66.1°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 2.4°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

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 65.4°F on 2016, while the historical minimum was 62.3°F on 2019.

latest data

last year

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.7°F, with minimum temperature starting at 66.3°F, while the maximum might reach 67.3°F.

Daily water temperature in San Diego

Date	Current Year actual* / forecast**	last year	10 years average
May 16	62.1°F	64.9°F	63.3°F
May 17	62.2°F	64.8°F	63.2°F
May 18	62.0°F	64.3°F	63.2°F
May 19	62.3°F	63.3°F	63.1°F
May 20	62.9°F	62.9°F	63.1°F
May 21	63.6°F	61.8°F	63.1°F
May 22	64.9°F	62.0°F	63.1°F
May 23	64.9°F	62.1°F	63.2°F
May 24	65.3°F	61.8°F	63.4°F
May 25	65.9°F	62.6°F	63.8°F
May 26	66.5°F	62.6°F	64.0°F
May 27	66.8°F	62.9°F	64.0°F
May 28	66.7°F	63.1°F	64.1°F
May 29	66.5°F	62.7°F	64.0°F
May 30	66.1°F	62.4°F	63.6°F
May 31	66.3°F	62.5°F	63.8°F
Jun 1	66.4°F	63.0°F	63.9°F
Jun 2	66.5°F	63.7°F	64.1°F
Jun 3	66.7°F	63.4°F	64.2°F
Jun 4	66.9°F	63.7°F	64.4°F
Jun 5	67.2°F	63.8°F	64.7°F
Jun 6	67.3°F	64.2°F	64.9°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	65.6°F	17mi
Oceanside	66.6°F	35mi
Laguna Beach	66.0°F	67mi

* current water temperature in this city

** straight line distance from San Diego