Waiaha Rivermouth / Honls Surf Forecast

/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /

USA (1297 breaks)

Surf Forecasts:

Waiaha Rivermouth / Honls surfForecast / HAW – Big Island / USA

48hr Weather and Surf, issued 7 pm Tuesday 19 Aug 2025 HST

Forecast update in hr min s Forecast update imminent

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

Today's Waiaha Rivermouth / Honls sea temperature is 27.2° C
(Which is slightly warmer than usual)

How big are the waves at Waiaha Rivermouth / Honls today?

The current surf forecast for Waiaha Rivermouth / Honls at 8PM is: 0.6m 13s primary swell from a South-southwest direction and 0.4m 18s secondary swell from a South direction (forecast issued at 07:00pm August 19). The wind direction is predicted to be cross-onshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (19 Aug)	-	-
Afternoon (19 Aug)	2ft (0.6m)	13s
Evening (19 Aug)	2ft (0.6m)	13s

Table - waves today at Waiaha Rivermouth / Honls. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Tuesday 19			Wednesday 20								Thursday 21								Friday 22
	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	11 AM	2 PM
Rating (10 max)	0	1	1	1	2	1	0	0	0	1	1	1	2	1	0	0	1	1	2	1	1	1	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	SSW	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Period(s) (?)	13	13	18	17	16	16	16	16	16	15	15	15	15	14	14	14	14	14	13	13	13	13	13	13
Wave Graph (?)
Energy (?)	188	234	216	231	269	250	320	298	295	243	237	286	329	268	260	268	282	245	278	231	272	263	307	249
Wind (km/h)	WSW	W	W	WNW	SW	SSE	SSW	W	W	WSW	WSW	WNW	W	SSE	SSW	W	NW	NW	SW	S	W	WNW	W	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross	glass	cross	on	cross- on	cross- on	on	on	cross- on	glass	cross- on	on	cross- on	cross	cross	glass	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)				1:35AM 0.25					2:18PM 0.78				2:22AM 0.29				2:57PM 0.77				3:04AM 0.33
Low Tide / height (m)			9:01PM 0.09			6:53AM 0.02					9:32PM 0.08			7:44AM 0.02					9:59PM 0.07				8:32AM 0.03

	Tuesday 19			Wednesday 20								Thursday 21								Friday 22
Sunrise	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:05	-	-
Sunset	6:49	-	-	-	-	-	-	-	6:47	-	-	-	-	-	-	-	6:47	-	-	-	-	-	-	-

Rain (mm)	-	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	27	26	26	25	25	26	27	26	26	26	26	25	25	26	27	27	26	26	25	25	25	26	26	26
Feels °C (?)	29	29	29	27	29	29	28	28	28	29	29	28	28	28	27	28	27	28	28	28	28	28	28	28

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 - Big Island

Wind Update Continuing clean conditions at Waiaha Rivermouth / Honls (calm at Kailua Kona 4 km from Waiaha Rivermouth / Honls). 0.6m 13s groundswell from the S with a 0.5m 15s groundswell, also from the S and a 0.2m 2s local chop, also from the W. 3 swells combining to make bigger set waves.
53 minutes ago Waiaha Rivermouth / Honls

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Actual: 53 min ago

0 km/h

Clean

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