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 18.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

64.4

°F

November 8, 10:18

Trend:

stable

Yesterday:

65.0°F

Tomorrow:

64.7°F

Sunrise:

06:12

Sunset:

16:52

Day Length:

10 h. 40 min.

San Diego in November

Minimum:

57.0°F

Average:

59.4°F

Maximum:

61.5°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 64.4°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is about the same as 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 slightly lower than the average registered over the last two weeks, indicating a slight cooling 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 67.6°F on 2015, while the historical minimum was 61.4°F on 2024.

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 63.9°F, the minimum temperature may reach 63.3°F, and the maximum might stay at 64.7°F.

Daily water temperature in San Diego

Date	Current Year actual* / forecast**	last year	10 years average
Oct 25	64.0°F	63.4°F	66.0°F
Oct 26	65.1°F	64.3°F	66.2°F
Oct 27	65.1°F	64.2°F	66.0°F
Oct 28	64.9°F	64.4°F	65.8°F
Oct 29	64.2°F	64.5°F	65.6°F
Oct 30	63.2°F	64.1°F	65.4°F
Oct 31	64.6°F	64.2°F	65.6°F
Nov 1	64.8°F	63.6°F	65.5°F
Nov 2	65.1°F	63.4°F	65.2°F
Nov 3	65.1°F	63.1°F	65.0°F
Nov 4	65.0°F	63.1°F	64.8°F
Nov 5	64.9°F	63.0°F	64.5°F
Nov 6	64.8°F	62.8°F	64.4°F
Nov 7	65.0°F	62.3°F	64.3°F
Nov 8	64.4°F	61.4°F	64.3°F
Nov 9	64.7°F	61.7°F	64.5°F
Nov 10	64.4°F	61.4°F	64.3°F
Nov 11	64.0°F	61.0°F	63.9°F
Nov 12	63.8°F	60.9°F	63.7°F
Nov 13	63.6°F	60.7°F	63.5°F
Nov 14	63.7°F	60.7°F	63.6°F
Nov 15	63.3°F	61.1°F	63.2°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 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 66.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	62.7°F	17mi
Oceanside	66.6°F	35mi
Laguna Beach	64.6°F	67mi

* current water temperature in this city

** straight line distance from San Diego