Station 51201 - Waimea Bay, HI (106)
December 18, 2025 7:26 am HASTLocation: 21.671N 158.118W
Significant Wave Height: 7.5 ft
Dominant Wave Period: 15 sec
Average Period: 11.2 sec
Mean Wave Direction: N (2°)
Water Temperature: 77.9°F (25.5°C)
Overnight - 73°F
Dec 18, 2025
3 mph S
Occasional Showers And Thunderstorms
Occasional showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 73. South wind around 3 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday - 81°F
Dec 18, 2025
3 to 8 mph SSW
Occasional Showers And Thunderstorms
Occasional showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 81. South southwest wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night - 72°F
Dec 18, 2025
1 to 5 mph S
Chance Rain Showers
A chance of rain showers before midnight, then scattered showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 72. South wind 1 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday - 82°F
Dec 19, 2025
1 to 6 mph E
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 82. East wind 1 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night - 73°F
Dec 19, 2025
1 to 6 mph E
Scattered Rain Showers
Scattered rain showers. Cloudy, with a low around 73. East wind 1 to 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Saturday - 82°F
Dec 20, 2025
8 mph E
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a high near 82. East wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 73°F
Dec 20, 2025
8 to 14 mph E
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 73. East wind 8 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Sunday - 81°F
Dec 21, 2025
16 mph E
Scattered Rain Showers
Scattered rain showers. Partly sunny, with a high near 81. East wind around 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Sunday Night - 74°F
Dec 21, 2025
16 to 20 mph E
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 74. East wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Monday - 80°F
Dec 22, 2025
22 mph E
Scattered Rain Showers
Scattered rain showers. Partly sunny, with a high near 80. East wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Monday Night - 73°F
Dec 22, 2025
22 mph E
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 73. East wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Tuesday - 80°F
Dec 23, 2025
22 mph E
Scattered Rain Showers
Scattered rain showers. Partly sunny, with a high near 80. East wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Tuesday Night - 72°F
Dec 23, 2025
17 to 22 mph E
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 72. East wind 17 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Wednesday - 79°F
Dec 24, 2025
18 mph E
Isolated Rain Showers
Isolated rain showers. Partly sunny, with a high near 79. East wind around 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.