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

73.9

°F

April 9, 03:37

Trend:

stable

Yesterday:

73.8°F

Tomorrow:

73.8°F

Sunrise:

06:13

Sunset:

18:50

Day Length:

12 h. 37 min.

Naha in April

Minimum:

71.9°F

Average:

73.5°F

Maximum:

76.2°F

Sea water temperature in Naha today

As of now, in Naha, the water temperature is 73.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.6°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 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 73.7°F on 2016, while the historical minimum was 71.0°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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 74.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Naha

Date Current Year

actual* / forecast**

last year 10 years average
Mar 26 71.6°F 72.1°F 71.8°F
Mar 27 71.6°F 72.8°F 71.5°F
Mar 28 71.3°F 72.9°F 71.7°F
Mar 29 71.5°F 73.3°F 71.7°F
Mar 30 72.1°F 72.5°F 71.9°F
Mar 31 72.5°F 72.6°F 72.0°F
Apr 1 72.3°F 72.4°F 71.9°F
Apr 2 72.6°F 71.5°F 71.8°F
Apr 3 73.2°F 71.1°F 71.9°F
Apr 4 73.3°F 70.7°F 72.2°F
Apr 5 72.4°F 70.8°F 72.2°F
Apr 6 73.0°F 70.7°F 72.3°F
Apr 7 73.5°F 70.8°F 72.4°F
Apr 8 73.8°F 70.4°F 72.2°F
Apr 9 73.9°F 71.0°F 72.3°F
Apr 10 73.8°F 70.8°F 72.2°F
Apr 11 73.8°F 71.0°F 72.2°F
Apr 12 74.2°F 71.2°F 72.6°F
Apr 13 74.3°F 71.6°F 72.7°F
Apr 14 74.1°F 70.8°F 72.5°F
Apr 15 74.2°F 70.0°F 72.6°F
Apr 16 74.3°F 70.7°F 72.7°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 259 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, 73.5°F in Spring, 83.0°F in Summer, and 81.7°F in Autumn.