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Water temperature in Ulua Beach (HI) in December

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Is it warm enough to swim in Ulua Beach in December? Average water temperature in Ulua Beach in December is 78.1°F and therefore suitable for comfortable swimming. The warmest sea in Ulua Beach in December is 80.6°F, and the coldest is 75.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Ulua Beach

Changes water temperature in Ulua Beach in December 2025, 2024

To get an accurate forecast for the water temperature in Ulua Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Ulua Beach, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
December 179.5°F79°F76.8°F80.6°F
December 279.5°F79.3°F76.8°F80.2°F
December 379.3°F79.2°F77°F80.4°F
December 479.2°F79.3°F76.5°F80.6°F
December 5 79.2°F77.7°F80.4°F
December 6 79.2°F76.8°F80.1°F
December 7 78.8°F77°F79.3°F
December 8 78.4°F76.6°F80.2°F
December 9 78.6°F76.6°F80.1°F
December 10 78.4°F76.6°F79.9°F
December 11 78.4°F77.4°F80.1°F
December 12 78.3°F76.5°F80.2°F
December 13 78.1°F76.5°F80.2°F
December 14 77.9°F77°F79.9°F
December 15 77.9°F76.3°F80.1°F
Day 2025 2024 Min Max
December 16 77.9°F76.3°F79.7°F
December 17 77.9°F76.3°F79°F
December 18 77.9°F76.1°F79.3°F
December 19 77.9°F76.3°F79.2°F
December 20 78.8°F77.2°F79.2°F
December 21 78.6°F76.3°F79°F
December 22 78.4°F76.3°F78.8°F
December 23 78.4°F76.5°F79.2°F
December 24 77.9°F76.1°F79.2°F
December 25 78.3°F76.5°F78.3°F
December 26 78.3°F76.1°F78.8°F
December 27 78.1°F75.7°F79°F
December 28 77.9°F75.7°F79.2°F
December 29 78.1°F76.3°F79.2°F
December 30 77.9°F75.7°F78.4°F
December 31 77.9°F76.1°F78.8°F
Ulua Beach water temp chart in December

Average water temperature in Ulua Beach in December over a decade

20152016201720182019
79°F78.1°F77.7°F78.1°F79.7°F
20202021202220232024
79.2°F77.9°F78.1°F78.4°F78.4°F

Ulua Beach water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in December?

Want to know where the water temperature in December is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

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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 Ulua Beach 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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