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 22.63°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.

72.7

°F

August 26, 01:35

Trend:

stable

Yesterday:

71.3°F

Tomorrow:

72.3°F

Sunrise:

06:19

Sunset:

19:21

Day Length:

13 h. 2 min.

San Diego in September

Minimum:

56.4°F

Average:

59.5°F

Maximum:

62.2°F

Sea water temperature in San Diego today

As of now, in San Diego, the water temperature is 72.7°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 2.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 73.4°F on 2024, while the historical minimum was 66.2°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 71.7°F, the minimum temperature may reach 71.5°F, and the maximum might stay at 72.3°F.

Daily water temperature in San Diego

Date	Current Year actual* / forecast**	last year	10 years average
Aug 12	73.4°F	66.7°F	70.7°F
Aug 13	72.1°F	67.6°F	70.6°F
Aug 14	72.0°F	68.1°F	70.5°F
Aug 15	71.2°F	68.1°F	70.4°F
Aug 16	71.0°F	67.6°F	70.2°F
Aug 17	70.3°F	67.6°F	70.1°F
Aug 18	69.4°F	68.4°F	70.3°F
Aug 19	67.8°F	69.5°F	70.2°F
Aug 20	67.9°F	70.3°F	70.3°F
Aug 21	69.1°F	70.6°F	70.3°F
Aug 22	69.5°F	71.1°F	70.2°F
Aug 23	69.9°F	71.9°F	70.5°F
Aug 24	70.7°F	72.1°F	70.6°F
Aug 25	71.3°F	72.4°F	70.9°F
Aug 26	72.7°F	71.7°F	70.5°F
Aug 27	72.3°F	71.7°F	70.1°F
Aug 28	72.1°F	72.0°F	69.9°F
Aug 29	71.6°F	71.3°F	69.4°F
Aug 30	71.6°F	71.4°F	69.4°F
Aug 31	71.5°F	70.9°F	69.3°F
Sep 1	71.5°F	70.5°F	69.3°F
Sep 2	71.5°F	70.5°F	69.3°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 59.6°F in Winter, 61.7°F in Spring, 68.3°F in Summer, and 65.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Tijuana	71.2°F	17mi
Oceanside	74.7°F	35mi
Laguna Beach	75.8°F	67mi

* current water temperature in this city

** straight line distance from San Diego