All data are in degrees Fahrenheit

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Water temperature in Naha

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

75.0

°F

May 14, 19:30

Trend:

increasing

Yesterday:

74.5°F

Tomorrow:

75.4°F

Sunrise:

05:44

Sunset:

19:08

Day Length:

13 h. 24 min.

Naha in May

Minimum:

71.9°F

Average:

73.5°F

Maximum:

76.1°F

Sea water temperature in Naha today

As of now, in Naha, the water temperature is 75.0°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.2°F lower 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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 77.5°F on 2021, while the historical minimum was 73.9°F on 2025.

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 76.0°F, with minimum temperature starting at 75.4°F, while the maximum might reach 76.5°F.

Daily water temperature in Naha

Date Current Year

actual* / forecast**

last year 10 years average
Apr 30 75.1°F 71.3°F 73.9°F
May 1 76.4°F 71.5°F 74.3°F
May 2 74.8°F 72.3°F 74.4°F
May 3 74.3°F 71.8°F 74.3°F
May 4 74.4°F 72.6°F 74.3°F
May 5 74.4°F 73.1°F 74.4°F
May 6 74.1°F 73.1°F 74.7°F
May 7 74.3°F 73.4°F 74.9°F
May 8 74.7°F 73.3°F 75.0°F
May 9 75.0°F 74.1°F 75.3°F
May 10 73.8°F 74.1°F 75.3°F
May 11 73.9°F 74.1°F 75.3°F
May 12 74.0°F 74.4°F 75.6°F
May 13 74.5°F 74.5°F 76.0°F
May 14 75.0°F 73.9°F 76.2°F
May 15 75.4°F 74.0°F 76.5°F
May 16 75.6°F 74.8°F 76.7°F
May 17 75.8°F 75.8°F 77.0°F
May 18 75.9°F 76.7°F 77.1°F
May 19 76.4°F 77.9°F 77.5°F
May 20 76.5°F 79.2°F 77.7°F
May 21 76.2°F 79.6°F 77.4°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 Naha by month

In Naha, the months May through December offer comfortable swimming conditions, which amounts to 261 swimming days.
The warmest water in Naha was recorded on August 16, 2024, reaching a 87.6°F. While the coldest temperature occurred on March 17, 2026, dipping to 69.1°F. The average readings by season are 73.2°F in Winter, 73.6°F in Spring, 83.0°F in Summer, and 81.7°F in Autumn.