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 13.77°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

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.

56.8

°F

December 21, 10:26

Trend:

decreasing

Yesterday:

56.8°F

Tomorrow:

56.7°F

Sunrise:

06:47

Sunset:

16:47

Day Length:

10 h. 0 min.

San Diego in December

Minimum:

57.1°F

Average:

59.6°F

Maximum:

61.5°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 56.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 4.0°F lower 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 reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 63.7°F on 2014, while the historical minimum was 57.4°F on 2022.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 56.6°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
Dec 7	57.2°F	61.8°F	61.3°F
Dec 8	57.2°F	62.1°F	61.3°F
Dec 9	56.8°F	62.2°F	61.3°F
Dec 10	57.2°F	62.8°F	61.4°F
Dec 11	56.9°F	63.2°F	61.3°F
Dec 12	56.2°F	63.0°F	61.3°F
Dec 13	56.4°F	62.1°F	61.2°F
Dec 14	56.8°F	62.0°F	61.2°F
Dec 15	56.5°F	61.6°F	61.1°F
Dec 16	56.7°F	61.6°F	60.9°F
Dec 17	56.7°F	61.6°F	60.7°F
Dec 18	56.4°F	61.7°F	60.6°F
Dec 19	56.6°F	61.9°F	60.5°F
Dec 20	56.8°F	61.8°F	60.4°F
Dec 21	56.8°F	62.0°F	60.8°F
Dec 22	56.7°F	62.4°F	60.7°F
Dec 23	56.8°F	62.8°F	60.9°F
Dec 24	56.8°F	62.2°F	60.8°F
Dec 25	56.7°F	62.3°F	60.7°F
Dec 26	56.6°F	62.4°F	60.6°F
Dec 27	56.3°F	62.4°F	60.3°F
Dec 28	56.2°F	62.3°F	60.2°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 February 25, 2023, dipping to 55.9°F. The average readings by season are 60.0°F in Winter, 61.8°F in Spring, 68.6°F in Summer, and 66.7°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	56.6°F	17mi
Oceanside	60.4°F	35mi
Laguna Beach	59.8°F	67mi

* current water temperature in this city

** straight line distance from San Diego