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

70.1

°F

February 9, 17:30

Trend:

stable

Yesterday:

70.3°F

Tomorrow:

70.2°F

Sunrise:

07:10

Sunset:

18:18

Day Length:

11 h. 8 min.

Naha in February

Minimum:

72.3°F

Average:

73.7°F

Maximum:

76.2°F

Sea water temperature in Naha today

As of now, in Naha, the water temperature is 70.1°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 1.2°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly 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 72.6°F on 2017, while the historical minimum was 70.0°F on 2025.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 70.1°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
Jan 26 70.6°F 71.4°F 72.2°F
Jan 27 70.8°F 71.4°F 72.1°F
Jan 28 70.3°F 71.0°F 71.9°F
Jan 29 70.3°F 70.7°F 71.8°F
Jan 30 70.4°F 70.4°F 71.8°F
Jan 31 70.6°F 70.6°F 71.8°F
Feb 1 70.5°F 70.4°F 71.8°F
Feb 2 70.3°F 70.3°F 71.6°F
Feb 3 70.2°F 70.2°F 71.6°F
Feb 4 70.2°F 70.2°F 71.5°F
Feb 5 70.3°F 70.1°F 71.5°F
Feb 6 70.5°F 70.0°F 71.5°F
Feb 7 70.4°F 70.2°F 71.4°F
Feb 8 70.3°F 70.1°F 71.4°F
Feb 9 70.1°F 70.0°F 71.3°F
Feb 10 70.2°F 69.9°F 71.3°F
Feb 11 70.1°F 69.8°F 71.3°F
Feb 12 70.1°F 70.2°F 71.3°F
Feb 13 70.1°F 69.6°F 71.3°F
Feb 14 70.2°F 69.7°F 71.4°F
Feb 15 70.1°F 70.0°F 71.2°F
Feb 16 70.1°F 70.3°F 71.3°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 February 23, 2025, dipping to 69.2°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.