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

80.7

°F

March 2, 06:45

Trend:

stable

Yesterday:

80.2°F

Tomorrow:

80.2°F

Sunrise:

06:33

Sunset:

18:31

Day Length:

11 h. 58 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 80.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 82.3°F on 2025, while the historical minimum was 75.7°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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 80.3°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 16 74.7°F 82.4°F 78.0°F
Feb 17 75.7°F 82.6°F 78.0°F
Feb 18 76.1°F 83.6°F 78.1°F
Feb 19 75.3°F 83.0°F 78.1°F
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 77.9°F
Mar 3 80.2°F 82.3°F 77.5°F
Mar 4 80.3°F 82.2°F 77.5°F
Mar 5 80.5°F 82.3°F 77.7°F
Mar 6 80.5°F 82.5°F 77.7°F
Mar 7 80.6°F 82.4°F 77.8°F
Mar 8 80.3°F 81.5°F 77.5°F
Mar 9 80.0°F 81.6°F 77.2°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 79.1°F 30mi
Veracruz 78.9°F 32mi
Panamá 79.7°F 42mi
San Francisco 79.7°F 42mi
Los Ángeles 81.2°F 54mi
Santo Domingo 81.3°F 59mi

* current water temperature in this city

** straight line distance from San José