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

82.9

°F

January 10, 06:34

Trend:

stable

Yesterday:

82.9°F

Tomorrow:

82.9°F

Sunrise:

06:06

Sunset:

17:43

Day Length:

11 h. 37 min.

San Jose in January

Minimum:

81.6°F

Average:

82.8°F

Maximum:

84.1°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 82.9°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 0.6°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 slightly lower than the average registered over the last two weeks, indicating a slight cooling 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 83.7°F on 2025, while the historical minimum was 80.8°F on 2019.

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 82.7°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
Jan 1 83.8°F 83.0°F 82.8°F
Jan 2 83.8°F 82.8°F 82.7°F
Jan 3 83.4°F 82.6°F 82.6°F
Jan 4 83.5°F 82.6°F 82.7°F
Jan 5 83.2°F 82.3°F 82.5°F
Jan 6 83.2°F 83.2°F 82.6°F
Jan 7 82.9°F 83.6°F 82.5°F
Jan 8 82.7°F 83.4°F 82.5°F
Jan 9 82.9°F 83.1°F 82.3°F
Jan 10 82.9°F 83.7°F 82.3°F
Jan 11 82.9°F 83.6°F 82.3°F
Jan 12 82.7°F 83.2°F 82.1°F
Jan 13 82.7°F 83.6°F 82.1°F
Jan 14 82.6°F 83.3°F 82.0°F
Jan 15 82.6°F 83.2°F 82.0°F
Jan 16 82.8°F 82.9°F 82.2°F
Jan 17 82.7°F 83.0°F 82.1°F
Dec 27 83.4°F 83.3°F 83.0°F
Dec 28 83.3°F 83.4°F 83.0°F
Dec 29 83.4°F 83.3°F 83.0°F
Dec 30 83.3°F 83.1°F 82.9°F
Dec 31 83.2°F 83.1°F 82.9°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 October 18, 2024, reaching a 87.0°F. While the coldest temperature occurred on February 16, 2019, dipping to 79.4°F. The average readings by season are 82.4°F in Winter, 83.4°F in Spring, 84.8°F in Summer, and 84.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Valencia 82.9°F 9mi
Pamplona 82.7°F 9mi
San Juan 83.2°F 25mi
Valencia 82.7°F 26mi
Panglao 83.3°F 36mi

* current water temperature in this city

** straight line distance from San Jose