Water temperature in Oneop

This data the coastal Oneop 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 Oneop

Water temperature in Oneop today is 30.1°C. Based on our historical data over a period of ten years, the warmest water in this day in the Pacific Ocean near Oneop was recorded in 2020 and was 30.5°C, and the coldest was recorded in 2015 at 28.9°C. Sea water temperature in Oneop is expected to drop to 29.9°C in the next 10 days. September average water temperature in Oneop is 29.9°C, the minimum temperature is 28.5°C, and the maximum is 30.9°C.

The swimming season in Oneop lasts from January to December, twelve months per year! During those months, Oneop water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Oneop in winter reaches 29.7°C, in spring 29.9°C, in summer the average temperature rises to 29.3°C, and in autumn it is 29.4°C.

Oneop water temperature now

The sea salinity in Oneop is 34.00‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Oneop 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 Oneop. 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 Oneop. 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 Oneop

Oneop water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Oneop. 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 Oneop 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 Oneop

The nearest beaches and cities from Oneop 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
Ta	30.1°C		0.88 m
Nukuoro	30.5°C		1.29 m
Weno Town	30°C	29°C		0.61 m
Chuuk Lagoon	30°C	29°C		0.61 m
Faichuk islands	29.9°C	29°C		1.05 m
Murilo	29.9°C	29°C		1.27 m
Kapingamarangi	30.7°C		1.22 m
Pohnpei	30.2°C	29°C		1.12 m
Kolonia	30.1°C	29°C		1.19 m
Onou	29.8°C		1.61 m

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Our report for Oneop 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.