All data are in degrees Fahrenheit

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Water temperature in Ishigaki

Detailed information about the current water temperature in Ishigaki. 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 Ishigaki now

83.8

°F

August 11, 03:14

Trend:

stable

Yesterday:

83.9°F

Tomorrow:

84.1°F

Sunrise:

06:16

Sunset:

19:21

Day Length:

13 h. 5 min.

Ishigaki in August

Minimum:

73.0°F

Average:

75.2°F

Maximum:

77.4°F

Sea water temperature in Ishigaki today

As of now, in Ishigaki, the water temperature is 83.8°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 1.5°F lower 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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 87.3°F on 2022, while the historical minimum was 83.8°F on 2019.

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 suggests a gradual increase. The average temperature is expected to rise up to 84.2°F, with minimum temperature starting at 84.1°F, while the maximum might reach 84.4°F.

Daily water temperature in Ishigaki

Date Current Year

actual* / forecast**

last year 10 years average
Jul 28 84.8°F 84.5°F 85.5°F
Jul 29 85.8°F 84.0°F 85.6°F
Jul 30 86.1°F 84.1°F 85.7°F
Jul 31 86.3°F 84.0°F 85.7°F
Aug 1 86.2°F 84.7°F 85.7°F
Aug 2 86.5°F 84.5°F 85.6°F
Aug 3 86.2°F 84.9°F 85.6°F
Aug 4 86.9°F 84.9°F 85.8°F
Aug 5 86.8°F 84.8°F 85.6°F
Aug 6 87.1°F 85.2°F 85.7°F
Aug 7 86.2°F 85.1°F 85.6°F
Aug 8 85.4°F 84.4°F 85.3°F
Aug 9 84.2°F 84.5°F 85.4°F
Aug 10 83.9°F 84.4°F 85.4°F
Aug 11 83.8°F 84.4°F 85.3°F
Aug 12 84.1°F 85.9°F 85.7°F
Aug 13 84.1°F 85.6°F 85.6°F
Aug 14 84.2°F 84.7°F 85.7°F
Aug 15 84.1°F 84.5°F 85.6°F
Aug 16 84.4°F 84.4°F 85.9°F
Aug 17 84.4°F 84.9°F 85.9°F
Aug 18 84.4°F 85.1°F 85.9°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 Ishigaki by month

In Ishigaki, the water temperature is comfortable for swimming all year round.
The warmest water in Ishigaki was recorded on July 19, 2024, reaching a 88.6°F. While the coldest temperature occurred on February 14, 2025, dipping to 71.5°F. The average readings by season are 75.1°F in Winter, 76.9°F in Spring, 84.7°F in Summer, and 82.4°F in Autumn.