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 21.07°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.

69.9

°F

June 14, 02:58

Trend:

stable

Yesterday:

70.8°F

Tomorrow:

70.1°F

Sunrise:

05:40

Sunset:

19:58

Day Length:

14 h. 18 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 69.9°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 4.1°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 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 69.8°F on 2022, while the historical minimum was 61.8°F on 2025.

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 70.8°F, with minimum temperature starting at 70.1°F, while the maximum might reach 71.5°F.

Daily water temperature in San Diego

Date	Current Year actual* / forecast**	last year	10 years average
May 31	63.7°F	65.6°F	63.9°F
Jun 1	63.9°F	65.3°F	64.0°F
Jun 2	63.9°F	65.0°F	64.0°F
Jun 3	64.7°F	65.0°F	64.2°F
Jun 4	64.4°F	65.2°F	64.4°F
Jun 5	65.2°F	64.8°F	64.7°F
Jun 6	65.9°F	63.9°F	64.8°F
Jun 7	66.4°F	62.7°F	65.0°F
Jun 8	66.8°F	62.0°F	65.2°F
Jun 9	67.4°F	60.9°F	65.3°F
Jun 10	68.1°F	60.6°F	65.5°F
Jun 11	68.2°F	60.9°F	65.5°F
Jun 12	70.4°F	60.7°F	65.7°F
Jun 13	70.8°F	61.5°F	66.0°F
Jun 14	69.9°F	61.8°F	65.8°F
Jun 15	70.1°F	63.0°F	66.1°F
Jun 16	70.6°F	64.2°F	66.5°F
Jun 17	70.6°F	64.4°F	66.5°F
Jun 18	70.6°F	65.0°F	66.5°F
Jun 19	71.0°F	65.6°F	66.9°F
Jun 20	71.4°F	66.2°F	67.3°F
Jun 21	71.5°F	66.2°F	67.4°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	69.0°F	17mi
Oceanside	70.9°F	35mi
Laguna Beach	68.7°F	67mi

* current water temperature in this city

** straight line distance from San Diego