Cape Mendocino Surf Forecast

/ CAL – Humboldt (25 breaks) / California (404 breaks) /

USA (1297 breaks) / Lat Long: (40.42° N 124.40° W)

Surf Forecasts:

Cape Mendocino surfForecast / CAL – Humboldt / USA

12 Day Weather and Surf, issued 4 pm Saturday 18 Oct 2025 PDT

Forecast update in hr min s Forecast update imminent

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

Today's Cape Mendocino sea temperature is 12.7° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Cape Mendocino this week:

The surf forecast for Cape Mendocino over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Oct 19) at 2AM. The primary swell is predicted to be 2.4m and 14s period with a secondary swell of 0.5m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cape Mendocino in the next 12 days are 4.5m 16s and forecast to arrive on Friday (Oct 24) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (Oct 18) at 8PM.

Wave Type	Time (PDT) & Date	Wave Height & Period
Next good surf (1 star+)	2AM (Sun 19th Oct)	8ft (2.4m) 14s
Best Surf	8PM (Sun 19th Oct)	10ft (3.0m) 13s
Most Powerful	8PM (Fri 24th Oct)	15ft (4.5m) 16s

Table - best surf conditions forecast for Cape Mendocino over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Mostly dry. Very mild (max 19°C on Tue morning, min 10°C on Sun night). Winds decreasing (fresh winds from the NNE on Sun night, calm by Mon night).											Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light.
	Sat 18		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	!	4	3	1	!	!	!	!	3	6	!	!	3	4	3	4	!	!	!	!	!
Swell Height Map See all maps
Wave Height (m) & direction (?)	NW	NW	NW	NW	NW	NW	NW	NW	NW	WNW	NW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Period(s) (?)	15	14	13	13	16	13	13	12	11	20	17	15	14	13	13	13	17	16	16	16	15
Wave Graph (?)
kJ (?)	4301	2390	1110	1892	9407	4961	3675	2525	1427	4242	7689	4487	2480	1543	1700	1876	4817	6783	10281	10304	9432
Wind (km/h)	N	NNE	N	N	N	N	N	NNE	SSW	SW	SSE	S	NW	NNE	NNW	NW	SE	S	SE	N	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	cross- off	cross	cross	cross	cross	glass	cross	glass	cross- off	cross	cross- on	cross- off	cross	cross- on	cross- off	cross	cross- off	cross	cross- on
High Tide / height (m)		10:17PM 1.51	10:38AM 1.73		11:07PM 1.48	11:01AM 1.75		11:54PM 1.44	11:23AM 1.75		12:40AM 1.39	11:46AM 1.74		1:26AM 1.34	12:11PM 1.72		2:14AM 1.30	12:40PM 1.69		3:08AM 1.26	1:14PM 1.64
Low Tide / height (m)	4:32PM 0.33	4:30AM 0.34		5:10PM 0.20		5:02AM 0.46	5:46PM 0.09		5:33AM 0.59	6:19PM 0.02		6:03AM 0.72	6:52PM -0.02		6:34AM 0.83	7:26PM -0.04		7:06AM 0.93		8:04PM -0.03	7:40AM 1.02

	Sat 18		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24
Sunrise	-	-	7:31	-	-	7:33	-	-	7:33	-	-	7:35	-	-	7:35	-	-	7:37	-	-	7:39
Sunset	6:32	-	-	6:31	-	-	6:30	-	-	6:29	-	-	6:27	-	-	6:25	-	-	6:24	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	6	16	-
Temp. °C	15	14	13	14	12	13	15	14	19	19	16	15	15	13	15	16	13	17	17	14	14
Feels °C (?)	13	11	11	9	8	8	9	12	16	16	13	13	14	11	14	14	12	13	14	12	12

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 CAL - Humboldt

Wind Update Continuing clean conditions at Cape Mendocino (calm at Fortuna 28 km from Cape Mendocino). 2.8m 15s groundswell from the NW which is too big for here.
1 hour 4 minutes ago Cape Mendocino

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28 km away, 1 h 4 min ago

0 km/h

0.0

12.7

Air / Water (°C)

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cape Mendocino 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.

Information about the Cape Mendocino Surf forecast

The above surf forecast table for Cape Mendocino provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cape Mendocino can be found by selecting the local surf guide option on the grey menu. Our Cape Mendocino surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cape Mendocino) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cape Mendocino may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Cape Mendocino is 47 km (29 miles) from Eureka. If you plan a vacation in Humboldt County, look for hotels and other accommodation in Eureka. Eureka has rooms for a wide range of budgets as well as car hire and transport links.