World sea water temperatures

Water temperature in Naha

This data the coastal Naha sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Naha

Water temperature in Naha today is 29.5°C. Based on our historical data over a period of ten years, the warmest water in this day in Naha was recorded in 2024 and was 30.4°C, and the coldest was recorded in 2012 at 28°C. Sea water temperature in Naha is expected to drop to 28.8°C in the next 10 days. September average water temperature in Naha is 28.7°C, the minimum temperature is 26.3°C, and the maximum is 30.7°C.

The swimming season in Naha lasts from January to December, twelve months per year! During those months, Naha water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Naha in winter reaches 22.7°C, in spring 23°C, in summer the average temperature rises to 28.2°C, and in autumn it is 27.2°C.

Naha water temperature now


5 September 2025
today temp
29.5°C
4 September 2025
yesterday temp
29.9°C


The sea salinity in Naha is 34.12‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Naha for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Naha. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Naha. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

0-3 h3-6 h6-9 h9-12 h
2' 3"2' 3"2' 2"2' 2"
0.68 m0.68 m0.67 m0.67 m
12-15 h15-18 h18-21 h21-24 h
2' 4"2' 5"2' 7"2' 11"
0.7 m0.73 m0.78 m0.88 m

Surf report in Naha

Naha wave height and direction

Naha weather forecast

Naha wind speed and direction

Current temperature and weather

Data in a table show Naha temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Naha.

0-3 h3-6 h6-9 h9-12 h
27.7°C27.4°C27.3°C29.1°C
12-15 h15-18 h18-21 h21-24 h
30.2°C30.2°C29.1°C28.5°C

You may also be interested in other sections of our site for Naha: Sunrise and Sunset, Tides

Naha water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Naha. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Naha on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

MonthAvrMinMax
January22.4°C20.4°C24.7°Cwarm
Sea water temperature in Naha in January
February21.7°C20.1°C23.3°Cwarm
Sea water temperature in Naha in February
March21.8°C19.3°C23.5°Cwarm
Sea water temperature in Naha in March
April22.7°C20.7°C25.2°Cwarm
Sea water temperature in Naha in April
May24.5°C22.2°C27.4°Cwarm
Sea water temperature in Naha in May
June26.8°C24.1°C30.4°Chot
Sea water temperature in Naha in June
July28.7°C26.9°C30.5°Chot
Sea water temperature in Naha in July
August29.1°C26.3°C30.9°Chot
Sea water temperature in Naha in August
September28.7°C26.3°C30.7°Chot
Sea water temperature in Naha in September
October27.3°C25.4°C29.3°Chot
Sea water temperature in Naha in October
November25.7°C23.4°C27.9°Chot
Sea water temperature in Naha in November
December23.9°C22.1°C26.2°Cwarm
Sea water temperature in Naha in December

Chart monthly average water temperature in Naha

Water temperature in Naha

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from Naha with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

WaterWeatherWave
Kerama Islands29.4°C30°C0.73 m
Zamami29.5°C30°C0.75 m
Ishigaki30.4°C29°C0.59 m
Yonakuni30.5°C30°C0.65 m
Yakushima29.7°C30°C0.6 m
Fulong Bathing Beach29.1°C29°C0.67 m
Taipei29.6°C30°C0.68 m
Suao29.5°C30°C0.61 m
Keelung29.2°C30°C0.63 m
Nishinoomote29.2°C29°C0.76 m

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  • Plage de Omi Maiko donant sur le Lac Biwa

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Other names for Naha

Naha-shi

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Naha is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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