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 19.44°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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.

67.0

°F

May 26, 18:45

Trend:

stable

Yesterday:

67.4°F

Tomorrow:

67.1°F

Sunrise:

05:44

Sunset:

19:48

Day Length:

14 h. 4 min.

San Diego in June

Minimum:

56.2°F

Average:

59.6°F

Maximum:

62.8°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 67.0°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 3.1°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 66.5°F on 2025, while the historical minimum was 61.5°F on 2021.

latest data

last year

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 67.0°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 Diego

Date	Current Year actual* / forecast**	last year	10 years average
May 12	64.1°F	61.9°F	63.9°F
May 13	64.5°F	62.2°F	63.8°F
May 14	64.1°F	62.2°F	63.7°F
May 15	64.0°F	62.1°F	63.5°F
May 16	64.2°F	62.1°F	63.5°F
May 17	63.9°F	62.2°F	63.4°F
May 18	64.6°F	62.0°F	63.4°F
May 19	65.2°F	62.3°F	63.4°F
May 20	65.7°F	62.9°F	63.4°F
May 21	66.0°F	63.6°F	63.4°F
May 22	66.7°F	64.9°F	63.4°F
May 23	67.4°F	64.9°F	63.5°F
May 24	68.0°F	65.3°F	63.8°F
May 25	67.4°F	65.9°F	64.1°F
May 26	67.0°F	66.5°F	63.9°F
May 27	67.1°F	66.8°F	64.0°F
May 28	67.2°F	66.7°F	64.1°F
May 29	67.1°F	66.5°F	64.0°F
May 30	66.9°F	66.1°F	63.8°F
May 31	67.0°F	65.6°F	63.9°F
Jun 1	67.0°F	65.3°F	64.0°F
Jun 2	67.1°F	65.0°F	64.0°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 59.6°F in Winter, 61.7°F in Spring, 68.2°F in Summer, and 65.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	65.6°F	17mi
Oceanside	66.6°F	35mi
Laguna Beach	64.5°F	67mi

* current water temperature in this city

** straight line distance from San Diego