Dillon Beach Surf Forecast

/ CAL – Marin County (14 breaks) / California (404 breaks) /

USA (1297 breaks) / Lat Long: (38.24° N 122.97° W)

Surf Forecasts:

Dillon Beach surfForecast / CAL – Marin County / USA

12 Day Weather and Surf, issued 10 am Wednesday 22 Oct 2025 PDT

Forecast update in hr min s Forecast update imminent

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

Today's Dillon Beach sea temperature is 15.2° C
(Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Dillon Beach this week:

The surf forecast for Dillon Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 23) at 5AM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Dillon Beach in the next 12 days are 3.0m 16s and forecast to arrive on Friday (Oct 24) at 2AM. Winds are predicted to be glassy at the time the swell arrives.

Wave Type	Time (PDT) & Date	Wave Height & Period
Next good surf (1 star+)	5AM (Thu 23rd Oct)	5ft (1.6m) 14s
Best Surf	2AM (Fri 24th Oct)	10ft (3.0m) 16s
Most Powerful	2AM (Fri 24th Oct)	10ft (3.0m) 16s

Table - best surf conditions forecast for Dillon Beach over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Very mild (max 16°C on Fri afternoon, min 12°C on Wed night). Wind will be generally light.									Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sat morning. Very mild (max 16°C on Sat afternoon, min 10°C on Mon morning). Wind will be generally light.
	Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	4	2	3	4	0	!	5	!	!	!	2	!	!	!	!	4	1	3	3	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Period(s) (?)	16	15	14	13	13	16	16	15	15	14	14	14	14	13	13	12	12	12	12	12	11
Wave Graph (?)
kJ (?)	3074	1927	1127	958	1226	4220	3326	3576	3570	3199	2671	3403	3558	3802	2972	1180	1186	993	802	1005	711
Wind (km/h)	SW	W	NW	WNW	WNW	NNE	NW	WNW	SSW	W	WNW	WNW	NNW	NE	NE	NW	WNW	NNW	W	WNW	NW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	on	cross- on	glass	on	glass	glass	on	glass	on	on	cross- on	glass	glass	cross- off	glass	cross- on	cross	glass	on	cross- on
High Tide / height (m)	11:56AM 1.55		1:39AM 1.21	12:20PM 1.54		2:28AM 1.18	12:48PM 1.52		3:20AM 1.14	1:22PM 1.48		4:19AM 1.12		2:03PM 1.43		5:26AM 1.11	2:53PM 1.37		6:31AM 1.13	3:55PM 1.31
Low Tide / height (m)		7:09PM 0.00		6:50AM 0.78	7:43PM -0.01		7:21AM 0.87		8:19PM -0.00	7:54AM 0.95		9:01PM 0.03	8:34AM 1.01		9:49PM 0.06	9:32AM 1.05		10:46PM 0.09	11:06AM 1.05		11:49PM 0.10

	Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
Sunrise	7:26	-	-	7:28	-	-	7:28	-	-	7:30	-	-	7:31	-	-	7:31	-	-	7:33	-	-
Sunset	-	6:23	-	-	6:22	-	-	6:22	-	-	6:21	-	-	6:19	-	-	6:17	-	-	6:16	-

Rain (mm)	-	-	-	-	-	-	-	-	-	3	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	14	15	14	15	15	14	15	16	15	15	16	14	14	14	13	14	14	14	17	18	16
Feels °C (?)	13	12	13	15	13	11	13	13	15	14	14	13	13	13	12	13	10	10	15	15	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 - Marin County

Wind Update Continuing clean conditions at Dillon Beach (calm at McDonald wx 9 km from Dillon Beach). 2.7m 16s long period groundswell from the WNW which is too big for here.
1 hour 8 minutes ago Dillon Beach

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1 h 8 min ago

5 km/h

Clean

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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 Dillon Beach 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 Dillon Beach Surf forecast

The above surf forecast table for Dillon Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Dillon Beach can be found by selecting the local surf guide option on the grey menu. Our Dillon Beach 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 (Dillon Beach) 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 Dillon Beach 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.

Dillon Beach is 26 km (16 miles) from the city of Rohnert Park. If you plan a vacation in Marin County, look for hotels and other accommodation in Rohnert Park. Rohnert Park has rooms for a wide range of budgets as well as car hire and transport links.