What is the current water temperature in Naha?

Q: What is the current water temperature in Naha?

As of now, in Naha, the water temperature is 22.59°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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.

72.7

°F

January 12, 10:24

Trend:

decreasing

Yesterday:

72.8°F

Tomorrow:

72.5°F

Sunrise:

07:19

Sunset:

17:57

Day Length:

10 h. 38 min.

Naha in January

Minimum:

72.2°F

Average:

73.8°F

Maximum:

76.3°F

Sea water temperature in Naha today

As of now, in Naha, the water temperature is 72.7°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 0.3°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 fall a bit.

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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 75.1°F on 2017, while the historical minimum was 71.9°F on 2025.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 72.3°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 1	73.6°F	73.5°F	73.8°F
Jan 2	73.5°F	73.4°F	73.7°F
Jan 3	73.3°F	73.3°F	73.6°F
Jan 4	73.0°F	73.4°F	73.5°F
Jan 5	73.1°F	73.3°F	73.5°F
Jan 6	72.9°F	73.4°F	73.5°F
Jan 7	72.9°F	72.9°F	73.4°F
Jan 8	72.5°F	72.5°F	73.2°F
Jan 9	72.4°F	72.5°F	73.1°F
Jan 10	72.4°F	72.2°F	73.1°F
Jan 11	72.8°F	72.1°F	73.1°F
Jan 12	72.7°F	71.9°F	73.0°F
Jan 13	72.5°F	71.7°F	72.8°F
Jan 14	72.4°F	71.7°F	72.8°F
Jan 15	72.4°F	71.7°F	72.7°F
Jan 16	72.3°F	71.4°F	72.6°F
Jan 17	72.3°F	71.4°F	72.7°F
Jan 18	72.3°F	71.4°F	72.6°F
Jan 19	72.2°F	71.4°F	72.5°F
Dec 29	74.0°F	74.1°F	74.4°F
Dec 30	74.2°F	74.1°F	74.3°F
Dec 31	73.7°F	74.1°F	74.2°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 73.3°F in Winter, 73.5°F in Spring, 83.0°F in Summer, and 81.7°F in Autumn.