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 22.44°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.

72.4

°F

August 25, 12:18

Trend:

stable

Yesterday:

72.1°F

Tomorrow:

72.1°F

Sunrise:

06:19

Sunset:

19:22

Day Length:

13 h. 3 min.

San Diego in September

Minimum:

56.4°F

Average:

59.4°F

Maximum:

61.8°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 72.4°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 1.5°F higher 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 fall 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 74.1°F on 2018, while the historical minimum was 66.3°F on 2023.

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 71.4°F, the minimum temperature may reach 71.1°F, and the maximum might stay at 72.1°F.

Daily water temperature in San Diego

Date	Current Year actual* / forecast**	last year	10 years average
Aug 11	69.4°F	68.6°F	70.8°F
Aug 12	66.7°F	68.2°F	70.4°F
Aug 13	67.6°F	68.2°F	70.4°F
Aug 14	68.1°F	68.2°F	70.3°F
Aug 15	68.1°F	68.2°F	70.4°F
Aug 16	67.6°F	72.5°F	70.3°F
Aug 17	67.6°F	72.4°F	70.2°F
Aug 18	68.4°F	72.9°F	70.5°F
Aug 19	69.5°F	73.2°F	70.5°F
Aug 20	70.3°F	74.3°F	70.7°F
Aug 21	70.6°F	73.8°F	70.6°F
Aug 22	71.1°F	73.7°F	70.4°F
Aug 23	71.9°F	73.7°F	70.8°F
Aug 24	72.1°F	73.7°F	70.8°F
Aug 25	72.4°F	74.1°F	70.9°F
Aug 26	72.1°F	73.4°F	70.6°F
Aug 27	71.7°F	72.9°F	70.2°F
Aug 28	71.5°F	72.8°F	70.0°F
Aug 29	71.1°F	71.9°F	69.6°F
Aug 30	71.2°F	71.6°F	69.7°F
Aug 31	71.1°F	70.8°F	69.6°F
Sep 1	71.2°F	70.4°F	69.7°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, 68.3°F in Summer, and 66.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	71.9°F	17mi
Oceanside	74.1°F	35mi
Laguna Beach	74.1°F	67mi

* current water temperature in this city

** straight line distance from San Diego