All data are in degrees Fahrenheit

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Water temperature in San José

Detailed information about the current water temperature in San José. 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 José now

79.3

°F

March 6, 14:59

Trend:

stable

Yesterday:

79.6°F

Tomorrow:

79.5°F

Sunrise:

06:31

Sunset:

18:31

Day Length:

12 h. 0 min.

San José in March

Minimum:

80.3°F

Average:

82.4°F

Maximum:

83.9°F

Sea water temperature in San José today

As of now, in San José, the water temperature is 79.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.7°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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 82.5°F on 2025, while the historical minimum was 75.7°F on 2020.

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 79.0°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 José

Date Current Year

actual* / forecast**

last year 10 years average
Feb 20 74.8°F 83.2°F 78.2°F
Feb 21 75.5°F 83.1°F 77.9°F
Feb 22 76.4°F 83.5°F 78.0°F
Feb 23 77.4°F 82.9°F 78.0°F
Feb 24 78.0°F 82.5°F 78.0°F
Feb 25 79.0°F 82.4°F 78.2°F
Feb 26 79.4°F 82.4°F 78.3°F
Feb 27 79.6°F 82.4°F 78.4°F
Feb 28 80.0°F 82.4°F 78.4°F
Mar 1 80.2°F 82.7°F 78.2°F
Mar 2 80.7°F 82.3°F 78.2°F
Mar 3 80.5°F 82.3°F 77.7°F
Mar 4 80.0°F 82.2°F 77.8°F
Mar 5 79.6°F 82.3°F 77.9°F
Mar 6 79.3°F 82.5°F 77.7°F
Mar 7 79.5°F 82.4°F 77.8°F
Mar 8 79.1°F 81.5°F 77.5°F
Mar 9 78.8°F 81.6°F 77.2°F
Mar 10 79.0°F 81.7°F 77.3°F
Mar 11 78.8°F 81.0°F 77.2°F
Mar 12 78.8°F 81.0°F 77.1°F
Mar 13 79.0°F 80.7°F 77.3°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 José by month

In San José, the water temperature is comfortable for swimming all year round.
The warmest water in San José was recorded on September 2, 2023, reaching a 87.9°F. While the coldest temperature occurred on February 13, 2026, dipping to 72.6°F. The average readings by season are 81.0°F in Winter, 80.9°F in Spring, 84.2°F in Summer, and 83.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
San José 79.3°F 30mi
Veracruz 78.7°F 32mi
Panamá 78.9°F 42mi
San Francisco 78.9°F 42mi
Los Ángeles 80.9°F 54mi
Santo Domingo 81.6°F 59mi

* current water temperature in this city

** straight line distance from San José