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

83.5

°F

January 11, 18:14

Trend:

decreasing

Yesterday:

83.7°F

Tomorrow:

83.3°F

Sunrise:

06:25

Sunset:

18:01

Day Length:

11 h. 36 min.

San Jose in January

Minimum:

82.3°F

Average:

83.6°F

Maximum:

85.5°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 83.5°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 0.3°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 slightly varies from the average of the past two weeks. 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 84.9°F on 2024, while the historical minimum was 82.5°F on 2023.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 83.1°F, the minimum temperature may reach 82.8°F, and the maximum might stay at 83.3°F.

Daily water temperature in San Jose

Date Current Year

actual* / forecast**

last year 10 years average
Jan 1 84.0°F 83.9°F 83.6°F
Jan 2 83.9°F 84.2°F 83.6°F
Jan 3 83.6°F 84.0°F 83.4°F
Jan 4 83.4°F 84.5°F 83.6°F
Jan 5 83.1°F 83.9°F 83.4°F
Jan 6 83.0°F 83.6°F 83.3°F
Jan 7 82.7°F 84.6°F 83.2°F
Jan 8 82.5°F 84.0°F 83.1°F
Jan 9 82.5°F 83.9°F 83.1°F
Jan 10 83.7°F 83.4°F 83.3°F
Jan 11 83.5°F 83.3°F 83.3°F
Jan 12 83.3°F 83.5°F 83.0°F
Jan 13 83.2°F 83.3°F 82.9°F
Jan 14 83.1°F 83.1°F 82.9°F
Jan 15 83.2°F 83.8°F 82.9°F
Jan 16 83.1°F 84.3°F 82.9°F
Jan 17 83.0°F 83.9°F 82.8°F
Jan 18 82.8°F 83.1°F 82.6°F
Dec 28 84.7°F 83.7°F 83.9°F
Dec 29 84.9°F 83.7°F 84.1°F
Dec 30 84.3°F 83.4°F 83.9°F
Dec 31 84.1°F 84.1°F 83.9°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.