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 18.12°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.

64.6

°F

June 1, 10:18

Trend:

increasing

Yesterday:

63.4°F

Tomorrow:

64.8°F

Sunrise:

05:49

Sunset:

20:22

Day Length:

14 h. 33 min.

San Jose in June

Minimum:

51.4°F

Average:

52.6°F

Maximum:

54.3°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 64.6°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 3.7°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 rise 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 66.3°F on 2023, while the historical minimum was 53.6°F on 2015.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 65.4°F, with minimum temperature starting at 64.8°F, while the maximum might reach 66.1°F.

Daily water temperature in San Jose

Date	Current Year actual* / forecast**	last year	10 years average
May 18	62.0°F	62.6°F	59.8°F
May 19	62.2°F	63.2°F	60.1°F
May 20	62.6°F	62.5°F	60.2°F
May 21	63.0°F	64.4°F	60.4°F
May 22	63.0°F	65.4°F	60.5°F
May 23	63.0°F	65.3°F	60.7°F
May 24	63.7°F	64.8°F	61.1°F
May 25	64.3°F	65.2°F	61.2°F
May 26	63.1°F	64.4°F	60.9°F
May 27	63.1°F	63.1°F	60.7°F
May 28	62.9°F	63.5°F	60.8°F
May 29	62.5°F	63.5°F	60.8°F
May 30	62.3°F	63.2°F	60.8°F
May 31	63.4°F	63.3°F	61.0°F
Jun 1	64.6°F	63.7°F	60.9°F
Jun 2	64.8°F	64.8°F	61.0°F
Jun 3	65.0°F	64.4°F	61.2°F
Jun 4	65.1°F	63.8°F	61.4°F
Jun 5	65.4°F	64.4°F	61.6°F
Jun 6	65.7°F	64.0°F	61.9°F
Jun 7	66.1°F	65.6°F	62.3°F
Jun 8	66.1°F	64.7°F	62.3°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 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, 63.9°F in Summer, and 61.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Redwood City	66.4°F	21mi
Oakland	62.0°F	38mi
San Francisco	59.2°F	42mi
Monterey	54.4°F	51mi

* current water temperature in this city

** straight line distance from San Jose