All data are in degrees Fahrenheit

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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.
Sea temperature in San Jose now

87.7

°F

May 21, 04:57

Trend:

stable

Yesterday:

87.9°F

Tomorrow:

87.9°F

Sunrise:

05:43

Sunset:

18:20

Day Length:

12 h. 37 min.

San Jose in May

Minimum:

82.2°F

Average:

83.4°F

Maximum:

85.2°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 87.7°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.8°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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 89.0°F on 2024, while the historical minimum was 85.8°F on 2021.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 87.9°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 7 86.6°F 85.5°F 86.6°F
May 8 87.4°F 85.8°F 86.7°F
May 9 86.5°F 85.9°F 86.8°F
May 10 86.7°F 86.0°F 86.8°F
May 11 86.9°F 85.9°F 86.8°F
May 12 86.9°F 85.8°F 86.7°F
May 13 87.4°F 87.1°F 86.8°F
May 14 87.1°F 87.6°F 87.0°F
May 15 87.7°F 87.0°F 87.3°F
May 16 88.1°F 86.8°F 87.2°F
May 17 87.7°F 86.5°F 87.2°F
May 18 86.9°F 86.1°F 87.0°F
May 19 87.5°F 86.0°F 87.1°F
May 20 87.9°F 86.0°F 87.0°F
May 21 87.7°F 86.0°F 86.9°F
May 22 87.9°F 86.3°F 87.0°F
May 23 87.8°F 86.7°F 87.0°F
May 24 87.9°F 87.2°F 87.1°F
May 25 88.1°F 86.9°F 87.2°F
May 26 87.9°F 86.9°F 87.1°F
May 27 87.9°F 87.1°F 87.1°F
May 28 87.8°F 86.7°F 87.0°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 San Jose, the water temperature is comfortable for swimming all year round.
The warmest water in San Jose was recorded on May 24, 2024, reaching a 89.5°F. While the coldest temperature occurred on February 28, 2016, dipping to 79.3°F. The average readings by season are 83.2°F in Winter, 85.3°F in Spring, 85.5°F in Summer, and 85.1°F in Autumn.