What is the current water temperature in San Jose?

Q: What is the current water temperature in San Jose?

As of now, in San Jose, the water temperature is 17.79°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

United States > San Jose

Water temperature in San Jose

Detailed information about the current water temperature in San Jose. 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.

64.0

°F

May 26, 16:55

Trend:

decreasing

Yesterday:

65.4°F

Tomorrow:

63.8°F

Sunrise:

05:51

Sunset:

20:18

Day Length:

14 h. 27 min.

San Jose in June

Minimum:

51.4°F

Average:

52.6°F

Maximum:

53.8°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 64.0°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 2.4°F higher 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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 64.9°F on 2020, while the historical minimum was 54.8°F on 2017.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest 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 64.1°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 Jose

Date	Current Year actual* / forecast**	last year	10 years average
May 12	65.5°F	61.4°F	60.4°F
May 13	66.1°F	61.9°F	61.0°F
May 14	66.2°F	61.4°F	61.2°F
May 15	66.6°F	61.8°F	61.3°F
May 16	67.0°F	61.7°F	61.2°F
May 17	65.9°F	61.5°F	60.9°F
May 18	64.7°F	62.0°F	60.8°F
May 19	65.1°F	62.2°F	61.1°F
May 20	64.7°F	62.6°F	61.1°F
May 21	65.1°F	63.0°F	61.4°F
May 22	64.6°F	63.0°F	61.5°F
May 23	65.0°F	63.0°F	61.6°F
May 24	65.3°F	63.7°F	62.0°F
May 25	65.4°F	64.3°F	62.2°F
May 26	64.0°F	63.1°F	61.6°F
May 27	63.8°F	63.1°F	61.4°F
May 28	63.8°F	62.9°F	61.4°F
May 29	64.0°F	62.5°F	61.5°F
May 30	63.9°F	62.3°F	61.5°F
May 31	64.1°F	63.4°F	61.7°F
Jun 1	64.4°F	64.6°F	62.0°F
Jun 2	64.4°F	64.3°F	62.0°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 Jose by month

In an average year, San Jose offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in San Jose was recorded on October 7, 2024, reaching a 73.9°F. While the coldest temperature occurred on January 23, 2025, dipping to 50.5°F. The average readings by season are 53.7°F in Winter, 58.6°F in Spring, 64.6°F in Summer, and 62.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Redwood City	64.5°F	21mi
Oakland	62.1°F	38mi
San Francisco	58.9°F	42mi
Monterey	56.4°F	51mi

* current water temperature in this city

** straight line distance from San Jose