Waimea Rivermouth 48 hour detailed Surf Forecast

Lat Long: 21.95° N 159.67° W

Issued: 1 am 05 Sep 2026 (local time)

Forecast update in hr min

Today's Waimea Rivermouth sea temperature is

27.1°C

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

Surf Forecasts:

How big are the waves at Waimea Rivermouth today (05 Sep):

Morning surf: Morning surf (05 Sep, local time) - 5.5ft (1.7m), 14s period with E swell.
Afternoon surf: Afternoon surf (05 Sep, local time) - 6ft (1.9m), 14s period with E swell.
Evening surf: Evening surf (05 Sep, local time) - 6ft (1.9m), 13s period with E swell.

The current surf forecast for Waimea Rivermouth at 6AM is: 1.4m 12s primary swell from a South direction (forecast issued at 01:00am September 05). An open ocean swell of 0.8m 6s is not directed at the surf break, a second open ocean swell of 1.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (HST) & Date	Wave Height	Wave Period
Morning (05 Sep)	5.5ft (1.7m)	14s
Afternoon (05 Sep)	6ft (1.9m)	14s
Evening (05 Sep)	6ft (1.9m)	13s

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

	Short Range Forecast Heavy rain (total 36mm), heaviest during Sun night. Warm (max 27°C on Sat morning, min 24°C on Sun night). Winds increasing (light winds from the ENE on Sat morning, strong winds from the SE by Mon night).
	Saturday 5								Sunday 6								Monday 7
	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	5 PM	8 PM	11 PM
Rating (10 max)	2	3	4	4	4	4	4	4	4	4	4	4	4	4	2	3	3	4	4	2	2	!	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSE 11	S 12	E 14	E 14	E 14	E 13	E 13	E 14	E 14	E 13	E 13	E 13	E 13	E 12	S 12	E 12	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 15	SSW 15	SSW 14
Wave Graph
kJ	278	522	1178	1145	1403	1303	1283	1342	1190	1121	1104	971	1189	1213	384	814	1111	1196	2020	2602	2643	3431	8084	8328
Wind (km/h)	ENE	NE	NE	ENE	E	ENE	ENE	ENE	ENE	ENE	ENE	E	E	E	E	E	E	E	E	E	E	E	ESE	SE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross
High Tide					12:07PM0.56m				11:30PM0.17m				1:03PM0.59m				00:49AM0.21m				1:49PM0.61m
Low Tide		3:41AM0.06m						8:29PM0.16m			5:12AM0.05m					8:41PM0.14m			6:23AM0.03m					8:59PM0.12m


	—	6:22	—	—	—	—	—	—	—	6:22	—	—	—	—	—	—	—	6:22	—	—	—	—	—	—
	—	—	—	—	—	6:51	—	—	—	—	—	—	—	6:50	—	—	—	—	—	—	—	6:49	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	1	2	4	3	4	4	4	2	1	1	3
Temp °C	25	24	25	27	27	26	25	25	25	25	25	27	27	27	26	25	24	24	24	25	26	27	26	26
Feels °C	25	25	26	28	28	27	26	26	27	27	26	29	29	29	27	26	25	25	25	25	26	25	22	22
Swell 1 Height (m) Direction Period (s)	SSE 11	S 12	S 13	S 12	S 12	S 12	S 12	S 12	S 12	S 12	S 12	S 11	S 12	S 12	S 12	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 15	SSW 15	SSW 14
kJ	278	522	623	566	692	556	646	628	544	547	456	433	390	456	384	472	1111	1196	2020	2602	2643	3431	8084	8328
Swell 2 Height (m) Direction Period (s)	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	SSW 19	S 11	NE 7	S 18	NE 7	E 13	NW 13	SSE 9	NNW 13	NNW 12
kJ	45	45	45	34	34	45	44	44	34	33	32	31	33	34	274	231	46	318	38	31	27	329	55	48
Swell 3 Height (m) Direction Period (s)	S 13	N 11	SW 18	SW 18	SW 18	SW 18	SW 18	E 14	SSW 16	SSW 16	SSW 16	SSW 16	SSW 16	SSW 15	SSW 14	NE 6	SSW 18	NE 7	NNW 15	NNW 14	E 13	NW 13	—	ENE 9
kJ	170	9	80	79	80	79	79	15	102	146	146	146	166	158	134	34	263	38	21	19	30	44	—	29
Wind waves Height (m) Direction Period (s)	ENE 7	ENE 7	E 14	E 14	E 14	E 13	E 13	E 14	E 14	E 13	E 13	E 13	E 13	E 12	NE 6	E 12	E 12	E 12	E 14	NE 7	SE 8	E 4	ENE 8	SSE 8
kJ	220	214	1178	1145	1403	1303	1283	1342	1190	1121	1104	971	1189	1213	39	814	736	698	1317	38	216	34	27	1067
Nearest Offshore or Glassy	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Waimea Rivermouth HAW - Kaua'i	Davidson Point HAW - Kaua'i	Yokohama Bay HAW - Oahu	Kaena Point HAW - Oahu	Waimea Rivermouth HAW - Kaua'i	Davidson Point HAW - Kaua'i	Ranches HAW - Oahu	Ranches HAW - Oahu	Kamaka'ipo/Egusa's HAW - Molokai	Himalayas HAW - Oahu	Avalanche HAW - Oahu
Rating (10 max)	2	3	4	4	4	4	4	4	4	4	4	4	4	4	3	3	4	4	5	4	4	4	4	6
Distance (km)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	6	153	149	0	6	156	156	261	167	165
Best forecast wave conditions in Kaua'i	Infinities	Hideaways	Acid Drops	Majors Bay	Majors Bay	Majors Bay	Majors Bay	Acid Drops	Hanalei Bay	Majors Bay	Acid Drops	Majors Bay	Majors Bay	Majors Bay	Majors Bay			Majors Bay	Majors Bay
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3			4	5
Best forecast wave conditions in United States	Mouse Rock CAL - San Luis Obispo	Hideaways HAW - Kaua'i	Tombstones HAW - Big Island	Kanaha HAW - Maui	Kanaha HAW - Maui	Majors Bay HAW - Kaua'i	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Huntington Beach CAL - Orange County	Church CAL - Orange County	Church CAL - Orange County	Majors Bay HAW - Kaua'i	Super Tubes CAL - Ventura	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Tennis Courts HAW - Oahu	Waiaha Rivermouth / Honls HAW - Big Island	Majors Bay HAW - Kaua'i	Ranches HAW - Oahu	Ranches HAW - Oahu	Magics HAW - Big Island	Magics HAW - Big Island	Puaena Point HAW - Oahu
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	4	4	4	4	6
Header Global	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Captains South Africa	Gerickes Point South Africa	Gerickes Point South Africa	Gerickes Point South Africa	Gas Bay Australia	Gas Bay Australia	Gas Bay Australia	Gas Bay Australia	Cobblestones Australia	Amanzimtoti South Africa	Amanzimtoti South Africa	Etang-Sale Reunion	Easter Reef Australia	Easter Reef Australia	Gas Bay Australia	Injidup Carpark Australia	Injidup Carpark Australia	Cobblestones Australia	Cobblestones Australia
Rating (10 max)	9	9	9	7	6	5	5	6	6	9	9	9	8	7	8	7	5	5	5	9	6	7	8	8

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

Latest Updates

Ben Mondy

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Ben Mondy

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waimea Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Waimea Rivermouth 48 hour detailed Surf Forecast

How big are the waves at Waimea Rivermouth today (05 Sep):

Short Range Forecast

Latest Updates

Road Testing the new Db Surf Roller Pro

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website