Gray Whale Cove Surf Forecast

/ CAL – San Mateo (15 breaks) / California (404 breaks) /

USA (1297 breaks) / Lat Long: (37.56° N 122.52° W)

Surf Forecasts:

Gray Whale Cove surfForecast / CAL – San Mateo / USA

48hr Weather and Surf, issued 10 pm Tuesday 16 Sep 2025 PDT

Forecast update in hr min s Forecast update imminent

Gray Whale Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Gray Whale Cove sea temperature is 16.9° C
(Which is 2.2°C warmer than normal for this time of year)

How big are the waves at Gray Whale Cove today?

The current surf forecast for Gray Whale Cove at 2AM is: 0.6m 16s primary swell from a South-southwest direction and 0.5m 12s secondary swell from a West direction (forecast issued at 10:00pm September 16). The wind direction is predicted to be cross-onshore.

Time (PDT) & Date	Wave Height	Wave Period
Morning (17 Sep)	2ft (0.6m)	16s
Afternoon (17 Sep)	2ft (0.6m)	16s
Evening (17 Sep)	2ft (0.6m)	15s

Table - waves today at Gray Whale Cove. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Tue 16		Wednesday 17								Thursday 18								Friday 19
	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	1	1	2	2	1	0	0	1	1	0	1	1	1	0	1	1	2	2	2	2	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	WNW	SSW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Period(s) (?)	18	17	16	16	16	16	16	15	10	15	8	8	9	10	10	10	10	10	11	11	11	11	11	10
Wave Graph (?)
kJ (?)	204	188	177	175	175	173	169	156	150	148	176	228	333	491	584	543	469	419	372	372	322	302	256	237
Wind (km/h)	WNW	NW	NW	WNW	NW	WNW	W	WNW	W	SW	SW	WSW	WSW	SW	SW	WSW	SW	SSW	SSW	SSW	S	SW	WSW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	glass	glass	on	on	on	on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross	cross	cross- on	cross- on	cross- on
High Tide / height (m)	7:05PM 2.31					9:11AM 2.01				8:09PM 2.33				9:48AM 2.10				9:04PM 2.34				10:19AM 2.17
Low Tide / height (m)				2:21AM 0.32				2:21PM 1.28				3:08AM 0.33				3:13PM 1.14				3:49AM 0.37				3:59PM 0.99

	Tue 16		Wednesday 17								Thursday 18								Friday 19
Sunrise	-	-	-	-	6:52	-	-	-	-	-	-	-	6:54	-	-	-	-	-	-	-	6:54	-	-	-
Sunset	-	-	-	-	-	-	-	7:15	-	-	-	-	-	-	-	7:13	-	-	-	-	-	-	-	7:12

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	17	16	16	16	17	21	20	18	16	16	15	15	15	16	17	16	15	15	15	15	16	17	17	17
Feels °C (?)	17	16	16	16	17	20	19	17	15	15	14	15	14	15	15	14	14	14	14	14	16	16	16	16

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 - San Mateo

Wind Update Continuing clean conditions at Gray Whale Cove (calm at Montara 3 km from Gray Whale Cove). 0.7m 8s swell from the WNW with a 0.5m 17s long period groundswell from the SSW and a 0.4m 13s groundswell, also from the SSW. 3 swells combining to make bigger set waves.
1 hour 19 minutes ago Gray Whale Cove

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1 h 19 min ago

0 km/h

NNE

Clean

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