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Surf Forecasts:

Dillon Beach surf break

Dillon Beach surfForecast / CAL – Marin County / USA

information circle12 Day Weather and Surf, issued 10 am Wednesday 17 Sep 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
16.0° C
 (Which is 1.5°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 Wednesday (Sep 17) at 11PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.7m and 15s. Another secondary swell of 0.5m and 12s 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 2.3m 10s and forecast to arrive on Thursday (Sep 18) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 17th Sep)5.5ft (1.7m) 8s
Best Surf 2AM (Thu 18th Sep)7ft (2.1m) 8s
Most Powerful11AM (Thu 18th Sep)7.5ft (2.3m) 10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Thu afternoon. Warm (max 20°C on Wed morning, min 14°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sun morning, min 13°C on Mon night). Wind will be generally light.

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
4
3
2
2
2
0
2
1
0
2
2
1
3
2
0
1
3
2
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SSW
1.3
WNW
2.1
NW
2.3
WNW
2
WNW
1.7
NW
1.5
NW
1.3
NW
0.7
SSW
0.7
SSW
0.9
WNW
0.8
WNW
1.3
WNW
1.4
WNW
1.2
WNW
1.5
WNW
1.6
WNW
1.2
WNW
1.4
WNW
1.2
WNW
1.2
WNW
Period(s) (?)1610810101110101414910121211111111101011
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2292965571110870652468315170164148141436509323489573305409288305
Wind
(km/h)
10
W
15
WNW
10
SSE
10
S
10
SSW
10
S
10
SSW
15
SW
5
SE
10
W
20
W
0
WSW
10
WSW
10
W
5
N
10
W
20
WNW
10
WNW
0
SSW
10
SW
5
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
off		crosscross-
on		crosscrosscross-
on		glassononglasscross-
on		onglassonononglasscross-
on		glass
High Tide
/ height (m)
9:57AM
1.34
8:42PM
1.57
10:35AM
1.39
9:40PM
1.56
11:09AM
1.42
10:31PM
1.53
11:39AM
1.45
11:18PM
1.48
12:06PM
1.47
12:03AM
1.42
12:29PM
1.48
12:48AM
1.34
12:51PM
1.49
1:33AM
1.27
Low Tide
/ height (m)
3:21PM
0.77
4:06AM
-0.05
4:13PM
0.63
4:47AM
-0.02
4:59PM
0.52
5:23AM
0.04
5:41PM
0.41
5:55AM
0.14
6:20PM
0.32
6:26AM
0.26
6:57PM
0.25
6:56AM
0.40
7:34PM
0.20
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Sunrise6:54--6:54--6:56--6:56--6:58--6:58--7:00--
Sunset-7:16--7:15--7:14--7:12--7:09--7:08--7:07-
clear
part cloud
part cloud
cloud
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
heavy rain
clear
clear
Rain (mm)
----1-------------13--
Temp. °C201916181715171815191915201917191914141615
Feels °C (?)181715171515161715181714191717171713141516
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for CAL - Marin County

  1. weather stationWind Update Continuing clean conditions at Dillon Beach (calm at Occidental 16 km from Dillon Beach). 1.0m 5s windswell from the NW with a 0.7m 9s swell from the WNW and a 0.5m 14s groundswell from the SW as well as a 0.3m 13s groundswell from the SSW. 4 swells combining to make bigger set waves.

    37 minutes ago Dillon Beach
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16 km away, 37 min ago

2 km/h
S
0.0
16.0
Air / Water (°C)
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FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Dillon Beach at:
surf-forecast.com

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.

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