Diamond Street Surf Forecast

/ CAL – San Diego County (71 breaks) / California (404 breaks) /

USA (1297 breaks) / Lat Long: (32.80° N 117.26° W)

Surf Forecasts:

Diamond Street surfForecast / CAL – San Diego County / USA

48hr Weather and Surf, issued 10 pm Wednesday 17 Sep 2025 PDT

Forecast update in hr min s Forecast update imminent

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

Today's Diamond Street sea temperature is 21.3° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at Diamond Street today?

The current surf forecast for Diamond Street at 2AM is: 0.8m 15s primary swell from a South-southwest direction and 0.5m 14s secondary swell from a Southwest direction (forecast issued at 10:00pm September 17). The wind direction is predicted to be cross-shore.

Time (PDT) & Date	Wave Height	Wave Period
Morning (18 Sep)	2.5ft (0.8m)	14s
Afternoon (18 Sep)	2.5ft (0.8m)	14s
Evening (18 Sep)	2.5ft (0.8m)	14s

Table - waves today at Diamond Street. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wed 17		Thursday 18								Friday 19								Saturday 20
	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)	0	0	1	0	2	1	0	0	1	1	1	1	1	0	0	0	0	1	1	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	S	S	SW	S	S	S
Period(s) (?)	15	15	15	14	14	14	14	14	14	14	14	13	14	13	13	13	13	13	13	13	13	13	13	13
Wave Graph (?)
kJ (?)	259	259	242	236	233	264	264	261	243	145	145	141	143	141	225	109	109	108	86	84	87	87	84	84
Wind (km/h)	NW	NNW	NW	NW	NNE	SSW	WSW	WNW	NW	NW	NW	NW	NW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	W	W	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross	glass	cross- on	on	cross- on	cross	cross	cross	cross- on	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross- on	cross- on	cross- on
High Tide / height (m)	7:03PM 1.80					8:30AM 1.47			7:49PM 1.84					8:54AM 1.55				8:30PM 1.83				9:17AM 1.62
Low Tide / height (m)				2:20AM -0.13				2:09PM 0.54				2:52AM -0.11				2:48PM 0.40				3:20AM -0.05				3:24PM 0.30

	Wed 17		Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	-	6:33	-	-	-	-	-	-	-	6:35	-	-	-	-	-	-	-	6:35	-	-	-
Sunset	-	-	-	-	-	-	-	6:51	-	-	-	-	-	-	-	6:50	-	-	-	-	-	-	-	6:47

Rain (mm)	-	-	-	2	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	21	21	22	21	22	24	24	23	22	22	21	21	21	22	22	22	21	21	20	20	20	21	21	21
Feels °C (?)	20	20	22	21	25	26	25	24	23	24	22	23	22	23	22	22	22	23	21	22	21	22	21	21

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 Diego County

Wind Update Continuing clean conditions at Diamond Street (calm at La Jolla- CA 8 km from Diamond Street). 0.7m 3s local chop from the NNW with a 0.6m 14s groundswell from the SSW and a 0.4m 9s swell from the S as well as a 0.2m 12s groundswell from the SSW. 4 swells combining to make bigger set waves.
1 hour 54 minutes ago Diamond Street

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1 h 54 min ago

4 km/h

Clean

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