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 19.52°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.

67.1

°F

October 10, 11:32

Trend:

stable

Yesterday:

67.7°F

Tomorrow:

67.1°F

Sunrise:

06:49

Sunset:

18:22

Day Length:

11 h. 33 min.

San Diego in October

Minimum:

56.8°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 67.1°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 0.4°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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 71.8°F on 2015, while the historical minimum was 64.7°F on 2023.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 66.5°F, the minimum temperature may reach 66.1°F, and the maximum might stay at 67.1°F.

Daily water temperature in San Diego

Date	Current Year actual* / forecast**	last year	10 years average
Sep 26	64.4°F	66.8°F	67.3°F
Sep 27	63.9°F	65.7°F	67.4°F
Sep 28	64.9°F	65.4°F	67.4°F
Sep 29	65.8°F	65.2°F	67.6°F
Sep 30	67.8°F	64.7°F	67.9°F
Oct 1	67.4°F	64.0°F	67.7°F
Oct 2	66.9°F	64.2°F	67.5°F
Oct 3	67.5°F	63.6°F	67.2°F
Oct 4	66.7°F	63.2°F	67.0°F
Oct 5	66.6°F	63.9°F	67.4°F
Oct 6	66.4°F	64.3°F	67.4°F
Oct 7	66.6°F	65.3°F	67.4°F
Oct 8	67.2°F	64.7°F	67.4°F
Oct 9	67.7°F	65.5°F	67.5°F
Oct 10	67.1°F	65.5°F	67.5°F
Oct 11	67.1°F	65.7°F	67.5°F
Oct 12	66.9°F	64.7°F	67.3°F
Oct 13	66.6°F	63.4°F	67.0°F
Oct 14	66.5°F	63.1°F	66.9°F
Oct 15	66.3°F	62.4°F	66.7°F
Oct 16	66.2°F	62.3°F	66.6°F
Oct 17	66.1°F	62.3°F	66.5°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	63.8°F	17mi
Oceanside	66.9°F	35mi
Laguna Beach	65.9°F	67mi

* current water temperature in this city

** straight line distance from San Diego