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 19.08°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.

66.3

°F

July 14, 17:21

Trend:

stable

Yesterday:

65.6°F

Tomorrow:

66.3°F

Sunrise:

05:51

Sunset:

19:58

Day Length:

14 h. 7 min.

San Diego in July

Minimum:

56.0°F

Average:

59.3°F

Maximum:

61.6°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 66.3°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 2.8°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 72.5°F on 2018, while the historical minimum was 64.2°F on 2023.

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.8°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
Jun 30	66.7°F	69.8°F	67.4°F
Jul 1	65.4°F	70.5°F	67.4°F
Jul 2	64.2°F	69.7°F	67.4°F
Jul 3	63.1°F	69.4°F	67.4°F
Jul 4	63.1°F	70.1°F	67.7°F
Jul 5	64.8°F	69.9°F	67.9°F
Jul 6	65.6°F	69.8°F	68.0°F
Jul 7	66.0°F	68.8°F	68.0°F
Jul 8	65.5°F	68.9°F	67.9°F
Jul 9	65.1°F	68.9°F	68.2°F
Jul 10	64.0°F	69.6°F	68.3°F
Jul 11	63.5°F	69.7°F	68.6°F
Jul 12	64.0°F	69.4°F	68.8°F
Jul 13	65.6°F	69.5°F	69.0°F
Jul 14	66.3°F	69.4°F	69.2°F
Jul 15	66.3°F	70.0°F	69.2°F
Jul 16	66.4°F	69.4°F	69.2°F
Jul 17	66.6°F	68.9°F	69.4°F
Jul 18	66.9°F	67.4°F	69.7°F
Jul 19	67.1°F	67.0°F	70.0°F
Jul 20	67.3°F	67.3°F	70.1°F
Jul 21	67.1°F	66.6°F	69.9°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, 68.4°F in Summer, and 66.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	68.7°F	17mi
Oceanside	69.5°F	35mi
Laguna Beach	67.3°F	67mi

* current water temperature in this city

** straight line distance from San Diego