What is the current water temperature in San Jose?

Q: What is the current water temperature in San Jose?

As of now, in San Jose, the water temperature is 30.85°C. 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.

Philippines > San Jose

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.

87.5

°F

September 29, 12:21

Trend:

increasing

Yesterday:

87.5°F

Tomorrow:

87.7°F

Sunrise:

05:54

Sunset:

17:57

Day Length:

12 h. 3 min.

San Jose in October

Minimum:

82.5°F

Average:

83.3°F

Maximum:

85.6°F

Sea water temperature in San Jose today

As of now, in San Jose, the water temperature is 87.5°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 2.6°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 rise 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 86.1°F on 2019, while the historical minimum was 83.7°F on 2025.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. 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
Sep 15	86.2°F	84.9°F	85.1°F
Sep 16	86.6°F	84.9°F	85.2°F
Sep 17	86.1°F	84.8°F	85.2°F
Sep 18	86.0°F	84.7°F	85.0°F
Sep 19	86.1°F	85.2°F	85.1°F
Sep 20	85.8°F	84.8°F	85.1°F
Sep 21	86.0°F	85.1°F	85.2°F
Sep 22	86.2°F	84.9°F	85.0°F
Sep 23	85.9°F	84.7°F	85.0°F
Sep 24	86.5°F	84.8°F	85.1°F
Sep 25	86.5°F	84.5°F	85.2°F
Sep 26	86.5°F	84.7°F	85.2°F
Sep 27	87.1°F	84.8°F	85.0°F
Sep 28	87.5°F	84.2°F	85.0°F
Sep 29	87.5°F	83.7°F	85.0°F
Sep 30	87.7°F	84.1°F	85.1°F
Oct 1	87.7°F	83.8°F	85.1°F
Oct 2	88.0°F	84.0°F	85.4°F
Oct 3	88.2°F	85.4°F	85.6°F
Oct 4	87.9°F	84.7°F	85.3°F
Oct 5	87.9°F	84.4°F	85.4°F
Oct 6	87.9°F	84.2°F	85.4°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.