Waialua Rivermouth Surf Forecast

/ HAW – Molokai (14 breaks) / Hawaii (267 breaks) /

USA (1297 breaks) / Lat Long: (21.10° N 156.76° W)

Surf Forecasts:

Waialua Rivermouth surfForecast / HAW – Molokai / USA

48hr Weather and Surf, issued 1 pm Tuesday 16 Sep 2025 HST

Forecast update in hr min s Forecast update imminent

Waialua Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Waialua Rivermouth sea temperature is 27.0° C
(Which is normal for this time of year)

How big are the waves at Waialua Rivermouth today?

The current surf forecast for Waialua Rivermouth at 5PM is: 1.7m 6s primary swell from a East direction and 0.5m 8s secondary swell from a North direction (forecast issued at 01:00pm September 16). An open ocean swell of 0.2m 12s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (16 Sep)	4.5ft (1.3m)	8s
Afternoon (16 Sep)	5ft (1.5m)	5s
Evening (16 Sep)	5.5ft (1.7m)	6s

Table - waves today at Waialua Rivermouth. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Tuesday 16					Wednesday 17								Thursday 18								Friday 19
	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	ENE
Period(s) (?)	5	5	6	6	6	6	5	6	6	6	5	6	6	6	6	6	6	6	6	6	6	6	6	6
Wave Graph (?)
kJ (?)	90	121	185	198	193	123	124	139	134	123	129	175	218	225	218	211	212	159	144	127	160	151	119	109
Wind (km/h)	ENE	ENE	E	ENE	E	ENE	E	E	ENE	ENE	E	E	E	E	E	E	ENE	ENE	ENE	ENE	ENE	E	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)		11:44AM 0.71				12:11AM 0.30				12:32PM 0.71				12:55AM 0.35				1:12PM 0.69				1:33AM 0.41
Low Tide / height (m)				7:27PM 0.09				5:30AM 0.08				7:54PM 0.08				6:29AM 0.07					8:17PM 0.07			7:20AM 0.07

	Tuesday 16					Wednesday 17								Thursday 18								Friday 19
Sunrise	-	-	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:13
Sunset	-	-	6:29	-	-	-	-	-	-	-	6:28	-	-	-	-	-	-	-	6:27	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	26	26	26	25	25	24	25	25	25	26	25	25	25	25	25	25	26	26	25	25	25	25	25	25
Feels °C (?)	24	24	24	23	23	22	23	23	23	24	23	23	23	23	23	23	24	24	23	24	24	24	24	24

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for HAW - Molokai

Wind Update Still cross-shore at Waialua Rivermouth (moderate winds from the NE at Molokai Airport 36 km from Waialua Rivermouth). 1.1m 5s windswell from the ENE with a 0.4m 9s swell from the N. 2 swells combining to make bigger set waves.
2 hours 16 minutes ago Waialua Rivermouth

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36 km away, 2 h 16 min ago

26 km/h

0.0

27.0

Air / Water (°C)

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