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 16.37°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.

61.5

°F

May 9, 11:05

Trend:

stable

Yesterday:

61.6°F

Tomorrow:

61.5°F

Sunrise:

06:04

Sunset:

20:04

Day Length:

14 h. 0 min.

San Jose in May

Minimum:

51.3°F

Average:

52.5°F

Maximum:

54.1°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 61.5°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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 64.4°F on 2020, while the historical minimum was 52.6°F on 2017.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 61.7°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
Apr 25	61.9°F	65.0°F	59.5°F
Apr 26	61.3°F	63.3°F	59.2°F
Apr 27	60.8°F	63.4°F	59.3°F
Apr 28	60.2°F	62.1°F	59.2°F
Apr 29	59.5°F	61.8°F	58.9°F
Apr 30	59.9°F	61.4°F	59.0°F
May 1	60.1°F	60.8°F	58.8°F
May 2	60.0°F	62.8°F	58.9°F
May 3	60.1°F	62.6°F	59.1°F
May 4	59.8°F	62.2°F	59.2°F
May 5	60.0°F	61.5°F	59.3°F
May 6	60.8°F	61.1°F	59.3°F
May 7	61.9°F	59.7°F	59.1°F
May 8	61.6°F	60.0°F	58.9°F
May 9	61.5°F	62.4°F	59.1°F
May 10	61.5°F	62.8°F	59.1°F
May 11	61.0°F	62.4°F	58.6°F
May 12	61.4°F	62.7°F	59.0°F
May 13	61.7°F	63.1°F	59.3°F
May 14	62.0°F	63.3°F	59.6°F
May 15	62.2°F	62.5°F	59.8°F
May 16	62.1°F	62.4°F	59.7°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	62.9°F	21mi
Oakland	59.9°F	38mi
San Francisco	57.8°F	42mi
Monterey	55.9°F	51mi

* current water temperature in this city

** straight line distance from San Jose