The Rivermouth Surf Forecast

/ CAL – Santa Cruz (30 breaks) / California (404 breaks) /

USA (1297 breaks) / Lat Long: (36.96° N 122.02° W)

Surf Forecasts:

The Rivermouth surfForecast / CAL – Santa Cruz / USA

48hr Weather and Surf, issued 10 pm Monday 15 Sep 2025 PDT

Forecast update in hr min s Forecast update imminent

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

Today's The Rivermouth sea temperature is 16.5° C
(Which is 1.6°C warmer than normal for this time of year)

How big are the waves at The Rivermouth today?

The current surf forecast for The Rivermouth at 1AM is: 0.5m 19s primary swell from a South direction and 1.0m 10s secondary swell from a West-northwest direction (forecast issued at 10:00pm September 15). The wind direction is predicted to be glassy and the swell rating is 2.

Time (PDT) & Date	Wave Height	Wave Period
Morning (16 Sep)	2.5ft (0.7m)	18s
Afternoon (16 Sep)	2.5ft (0.7m)	18s
Evening (16 Sep)	2.5ft (0.7m)	17s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Mon 15		Tuesday 16								Wednesday 17								Thursday 18
	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	5 PM
Rating (10 max)	1	2	2	2	2	2	0	1	1	1	1	1	1	0	0	1	2	2	2	2	2	1	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	WNW	WNW	S	SSW	SSW	SSW	SSW	SSW	S	S	SSW	SSW	S	SSW	S	S	S	S	SSW	SSW	S	WNW	WNW	WNW
Period(s) (?)	9	10	19	18	18	18	18	18	18	17	16	16	16	16	16	16	15	15	15	15	15	10	10	10
Wave Graph (?)
Energy (?)	308	504	432	489	497	480	471	447	346	377	360	351	330	398	348	437	403	423	419	440	424	535	643	719
Wind (km/h)	SSE	E	NE	NNE	ENE	SW	WSW	WSW	ESE	NE	NNE	NNW	NNE	WSW	SW	SSW	S	S	SE	SSW	SSE	SSW	SW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	glass	glass	glass	glass	glass	cross- on	cross- on	glass	glass	glass	glass	glass	cross- on	cross- on	on	glass	glass	glass	glass	glass	cross- on	cross- on	cross- on
High Tide / height (m)	5:21PM 1.69					8:49AM 1.35			6:39PM 1.66					9:26AM 1.41			7:48PM 1.65					9:59AM 1.44
Low Tide / height (m)			1:02AM -0.03				1:06PM 0.99					2:01AM -0.07				2:07PM 0.84				2:50AM -0.08				2:58PM 0.67

	Mon 15		Tuesday 16								Wednesday 17								Thursday 18
Sunrise	-	-	-	-	6:50	-	-	-	-	-	-	-	6:50	-	-	-	-	-	-	-	6:52	-	-	-
Sunset	-	-	-	-	-	-	-	7:14	-	-	-	-	-	-	-	7:13	-	-	-	-	-	-	-	7:10

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	18	18	19	19	20	25	26	25	20	20	20	20	21	24	24	22	17	16	16	15	15	18	20	19
Feels °C (?)	19	18	19	19	20	24	24	24	20	20	20	19	20	23	23	21	17	17	17	15	16	18	20	18

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 - Santa Cruz

Wind Update Continuing clean conditions at The Rivermouth (calm at Santa Cruz wx 2 km from The Rivermouth). 0.4m 16s long period groundswell from the SSW to make surfable waves.
1 hour 52 minutes ago The Rivermouth

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1 h 52 min ago

0 km/h

Clean

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