What is the current water temperature in Naha?

As of now, in Naha, the water temperature is 25.57°C. It's safe to say that the water is comfortably warm for various water-related activities.

Japan > Naha

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.

78.0

°F

June 13, 09:33

Trend:

stable

Yesterday:

78.1°F

Tomorrow:

78.1°F

Sunrise:

05:36

Sunset:

19:22

Day Length:

13 h. 46 min.

Naha in June

Minimum:

72.0°F

Average:

73.5°F

Maximum:

75.8°F

Sea water temperature in Naha today

As of now, in Naha, the water temperature is 78.0°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.2°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

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 83.0°F on 2025, while the historical minimum was 78.4°F on 2024.

latest data

last year

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 78.1°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
May 30	78.0°F	78.0°F	78.0°F
May 31	77.5°F	77.4°F	77.9°F
Jun 1	77.6°F	77.6°F	78.2°F
Jun 2	77.7°F	77.9°F	78.4°F
Jun 3	77.2°F	78.5°F	78.4°F
Jun 4	77.2°F	78.3°F	78.3°F
Jun 5	77.0°F	78.3°F	78.4°F
Jun 6	77.1°F	77.8°F	78.6°F
Jun 7	77.5°F	78.9°F	78.8°F
Jun 8	77.7°F	80.0°F	79.2°F
Jun 9	77.7°F	80.2°F	79.4°F
Jun 10	78.0°F	81.3°F	79.6°F
Jun 11	78.0°F	81.8°F	79.8°F
Jun 12	78.1°F	82.5°F	80.3°F
Jun 13	78.0°F	83.0°F	80.2°F
Jun 14	78.1°F	82.9°F	80.2°F
Jun 15	77.8°F	82.2°F	80.0°F
Jun 16	77.8°F	82.9°F	80.0°F
Jun 17	78.0°F	83.2°F	80.2°F
Jun 18	78.1°F	83.5°F	80.3°F
Jun 19	78.3°F	83.5°F	80.5°F
Jun 20	78.5°F	83.7°F	80.7°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 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, 73.5°F in Spring, 82.9°F in Summer, and 81.7°F in Autumn.