Water temperature in Duke of York Islands

This data the coastal Duke of York Islands 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 Duke of York Islands

Water temperature in Duke of York Islands today is 30.2°C. Based on our historical data over a period of ten years, the warmest water in this day in Duke of York Islands was, like today, 30.2°C, and the coldest was recorded in 2015 at 28°C. Sea water temperature in Duke of York Islands is expected to drop to 29.5°C in the next 10 days. September average water temperature in Duke of York Islands is 29.1°C, the minimum temperature is 27.3°C, and the maximum is 30.5°C.

The swimming season in Duke of York Islands lasts from January to December, twelve months per year! During those months, Duke of York Islands water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Duke of York Islands in winter reaches 29.2°C, in spring 29.6°C, in summer the average temperature rises to 30°C, and in autumn it is 29.8°C.

Duke of York Islands water temperature now

The sea salinity in Duke of York Islands is 34.46‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Duke of York Islands 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 Duke of York Islands. 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 Duke of York Islands. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Duke of York Islands

Duke of York Islands weather forecast

Current temperature and weather

Data in a table show Duke of York Islands temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Duke of York Islands.

0-3 h	3-6 h	6-9 h	9-12 h
26.3°C	25.6°C	25.9°C	28.1°C

12-15 h	15-18 h	18-21 h	21-24 h
29.2°C	29°C	28°C	27°C

Duke of York Islands water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Duke of York Islands. 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 Duke of York Islands 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

Chart monthly average water temperature in Duke of York Islands

The nearest beaches and cities from Duke of York Islands 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

	Water	Weather		Wave
Carteret Islands	30.3°C	29°C		0.77 m
Milne Bay	27.4°C	26°C		0.29 m
Madang	29.2°C	30°C		0.31 m
Samarai	26.8°C	26°C		1.29 m
Port Moresby	26.7°C	27°C		1.91 m
Kerema	27.5°C	27°C		1 m
Nukuoro	30.5°C		1.29 m
Wewak	29.9°C	29°C		0.49 m
Honiara	29.4°C	30°C		0.57 m
Ta	30.1°C		0.88 m

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Our report for Duke of York Islands 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.