Cape Mendocino 48 hour detailed Surf Forecast

Lat Long: 40.42° N 124.40° W

Issued: 10 am 13 Sep 2026 (local time)

Forecast update in hr min

Today's Cape Mendocino sea temperature is

12.5°C

Cape Mendocino 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 Cape Mendocino today (13 Sep):

Morning surf: Morning surf (13 Sep, local time) - 4ft (1.2m), 9s period with WNW swell.
Afternoon surf: Afternoon surf (13 Sep, local time) - 5ft (1.6m), 9s period with NW swell.
Evening surf: Evening surf (13 Sep, local time) - 6ft (1.8m), 9s period with NW swell.

The current surf forecast for Cape Mendocino at 4PM is: 1.6m 9s primary swell from a Northwest direction and 0.7m 13s secondary swell from a Southwest direction (forecast issued at 10:00am September 13). The wind direction is predicted to be cross-onshore.

Time (PDT) & Date	Wave Height	Wave Period
Morning (13 Sep)	4ft (1.2m)	9s
Afternoon (13 Sep)	5ft (1.6m)	9s
Evening (13 Sep)	6ft (1.8m)	9s

Table - waves today at Cape Mendocino. (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Very mild (max 17°C on Sun afternoon, min 12°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the NNW by Tue afternoon).
	Sunday 13						Monday 14								Tuesday 15
	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	1	0	2	1	3	2	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	WNW 10	WNW 8	NW 9	NW 9	NW 9	NW 9	NW 9	NW 9	NW 8	NW 8	NW 7	SW 17	SW 17	SW 17	SW 17	SW 17	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16
Wave Graph
kJ	246	219	397	540	427	486	513	418	427	418	407	188	188	188	147	188	186	179	159	122	87	87
Wind (km/h)	E	WNW	NW	NNW	N	N	N	N	N	N	N	N	N	N	N	N	N	N	NNW	N	N	N
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	cross-on	cross-on	cross	cross	cross-off	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross
High Tide			1:14PM1.78m				1:56AM1.48m				1:43PM1.76m					2:54AM1.35m				2:16PM1.72m
Low Tide	7:11AM0.38m				7:51PM0.17m				7:46AM0.56m					8:37PM0.16m				8:24AM0.74m				9:27PM0.17m


	6:56	—	—	—	—	—	—	6:56	—	—	—	—	—	—	—	6:58	—	—	—	—	—	—
	—	—	—	7:30	—	—	—	—	—	—	—	7:28	—	—	—	—	—	—	—	7:27	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	16	17	16	14	13	13	12	13	16	16	15	13	13	13	12	12	16	16	16	14	14
Feels °C	14	15	14	12	11	10	10	8	9	11	11	10	9	10	10	8	8	12	10	11	10	11
Swell 1 Height (m) Direction Period (s)	WNW 10	WNW 8	NW 9	NW 9	NW 9	NW 9	NW 9	SSW 13	SSW 13	SW 13	SW 13	SW 17	SW 17	SW 17	SW 17	SW 17	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16
kJ	246	219	397	427	427	379	402	116	116	84	84	188	188	188	147	188	186	179	159	122	87	87
Swell 2 Height (m) Direction Period (s)	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SSW 13	SW 19	SW 18	SW 17	SW 17	SW 13	SW 13	SSW 12	SW 12	SW 12	WNW 13	WNW 13	NW 13	NW 13	NW 12	NW 12
kJ	189	186	183	180	142	142	116	125	112	107	106	83	80	61	53	38	69	69	44	42	38	37
Swell 3 Height (m) Direction Period (s)	NNW 9	NNW 9	SW 19	SW 19	SW 19	SW 19	SW 19	WSW 10	WSW 10	WSW 9	NW 15	WNW 15	WNW 15	WNW 14	WNW 13	NW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12
kJ	59	59	58	92	93	127	127	10	9	8	54	84	42	21	17	45	38	37	23	23	23	23
Wind waves Height (m) Direction Period (s)	—	—	—	NW 9	—	NW 9	NW 9	NW 9	NW 8	NW 8	NW 7	NW 7	NW 7	NNW 8	NNW 8	NNW 8	NW 8	NNW 8	NNW 8	NNW 8	NNW 8	NNW 8
kJ	—	—	—	540	—	486	513	418	427	418	407	383	405	464	493	590	573	618	634	654	659	713
Nearest Offshore or Glassy	Cape Mendocino CAL - Humboldt	Point St George CAL - Del Norte County	Garths Reef CAL - Del Norte County	Cape Sebastian Oregon South	Garths Reef CAL - Del Norte County	Third Reef CAL - Humboldt	South Jetty Table Bluff CAL - Humboldt	Gale Point CAL - Humboldt	South Jetty Table Bluff CAL - Humboldt	Drakes Bay CAL - Marin County	The Patch CAL - Marin County	The Rivermouth CAL - Santa Cruz	Usal Beach CAL - Mendocino County	Harbor Entrance at Eureka CAL - Humboldt	South Jetty Table Bluff CAL - Humboldt	South Jetty Table Bluff CAL - Humboldt	South Jetty Table Bluff CAL - Humboldt	Garths Reef CAL - Del Norte County	Cojo CAL - Santa Barbara	Gale Point CAL - Humboldt	Usal Beach CAL - Mendocino County	Moonstone Beach CAL - Humboldt
Rating (10 max)	2	2	2	3	2	4	3	4	3	1	2	2	3	3	3	3	3	1	2	3	4	3
Distance (km)	0	152	151	211	151	51	40	54	40	294	316	436	80	41	40	40	40	151	750	54	80	73
Best forecast wave conditions in Humboldt County	Moonstone Beach					Gale Point	Gale Point	Gale Point	Gale Point					Gold Bluffs Beach	The Lagoons	Gale Point	The Lagoons			Gale Point		Moonstone Beach
Rating (10 max)	2					4	3	4	4					3	3	3	3			3		3
Best forecast wave conditions in United States	Boners CAL - San Luis Obispo	Pipeline HAW - Oahu	Pinetrees HAW - Kaua'i	Cape Sebastian Oregon South	Church CAL - Orange County	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Ocean Beach CAL - Marin County	Gale Point CAL - Humboldt	Lincoln City Nelscott Reef Oregon North	Steamer Lane-Middle Peak CAL - Santa Cruz	Steamer Lane-Middle Peak CAL - Santa Cruz	Seaside Creek CAL - Mendocino County	Mouse Rock CAL - San Luis Obispo	Fullers CAL - Monterey	Government Point CAL - Santa Barbara	Fullers CAL - Monterey	Magics HAW - Big Island	Off the Wall/Insanities HAW - Oahu	Gale Point CAL - Humboldt	Usal Beach CAL - Mendocino County	Government Point CAL - Santa Barbara
Rating (10 max)	3	2	2	3	2	4	3	4	4	2	2	2	4	4	4	4	4	2	2	3	4	3
Header Global	Ouano Lefts New Caledonia	Gas Bay Australia	Ouano Lefts New Caledonia	Fish Boma South Africa	Injidup Carpark Australia	Cobblestones Australia	Cloudbreak Fiji	Gas Bay Australia	Gas Bay Australia	Glen Eden South Africa	Hole-in-the-Wall South Africa	Cow Bombie Australia	Cobblestones Australia	Cobblestones Australia	Cow Bombie Australia	Cow Bombie Australia	Saint Leu Reunion	Etang-Sale Reunion	Saint Leu Reunion	Etang-Sale Reunion	Antiques Maldives	Etang-Sale Reunion
Rating (10 max)	5	6	6	5	5	6	5	6	6	8	7	5	5	5	5	5	5	8	6	6	4	5

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

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Cape Mendocino 48 hour detailed Surf Forecast

How big are the waves at Cape Mendocino today (13 Sep):

Short Range Forecast

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