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 22.04°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 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.

71.7

°F

July 14, 02:20

Trend:

decreasing

Yesterday:

72.4°F

Tomorrow:

71.6°F

Sunrise:

05:58

Sunset:

20:28

Day Length:

14 h. 30 min.

San Jose in July

Minimum:

51.6°F

Average:

52.8°F

Maximum:

54.9°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 71.7°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 6.2°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 stay about the same.

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 72.4°F on 2022, while the historical minimum was 55.8°F on 2016.

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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 71.8°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
Jun 30	65.4°F	65.5°F	63.7°F
Jul 1	64.6°F	65.9°F	63.5°F
Jul 2	65.0°F	67.2°F	63.5°F
Jul 3	65.0°F	67.6°F	63.4°F
Jul 4	64.5°F	67.3°F	63.3°F
Jul 5	65.0°F	68.6°F	63.8°F
Jul 6	64.8°F	69.9°F	64.1°F
Jul 7	66.3°F	71.8°F	64.6°F
Jul 8	68.1°F	71.4°F	64.8°F
Jul 9	68.5°F	70.0°F	65.1°F
Jul 10	68.8°F	70.1°F	65.2°F
Jul 11	70.3°F	70.1°F	65.4°F
Jul 12	71.7°F	70.0°F	65.7°F
Jul 13	72.4°F	69.5°F	65.8°F
Jul 14	71.7°F	70.1°F	65.4°F
Jul 15	71.6°F	70.3°F	65.3°F
Jul 16	71.5°F	70.0°F	65.2°F
Jul 17	71.8°F	71.7°F	65.5°F
Jul 18	71.6°F	70.9°F	65.4°F
Jul 19	71.8°F	70.9°F	65.6°F
Jul 20	72.3°F	70.4°F	66.0°F
Jul 21	72.4°F	71.6°F	66.1°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 53.8°F in Winter, 57.9°F in Spring, 64.0°F in Summer, and 61.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Redwood City	69.7°F	21mi
Oakland	64.0°F	38mi
San Francisco	61.6°F	42mi
Monterey	57.5°F	51mi

* current water temperature in this city

** straight line distance from San Jose