Dillon Beach surf break

Dillon Beach surfForecast / CAL – Marin County / USA

information circle12 Day Weather and Surf, issued 3 pm Wednesday 10 Dec 2025 PST
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
13.3° C
(Which is slightly warmer than usual)


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 (Dec 10) at 10PM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 0.3m and 15s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Dillon Beach in the next 12 days are 2.2m 15s and forecast to arrive on Thursday (Dec 11) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 8s period and expected on Saturday (Dec 13) at 1PM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Wed 10th Dec)6.5ft (2.0m) 14s
Best Surf10PM (Wed 10th Dec)6.5ft (2.0m) 14s
Most Powerful 1PM (Thu 11th Dec)7ft (2.2m) 15s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 19°C on Fri morning, min 12°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Sun morning, min 13°C on Sat night). Wind will be generally light.

Wed
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
3
4
4
3
4
4
4
3
2
2
2
2
2
2
2
0
2
3
3
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.9
WNW
2.1
WNW
2.2
WNW
2.2
WNW
2.2
WNW
1.9
WNW
1.7
WNW
1.4
WNW
1.2
WNW
1
WNW
1
W
0.9
W
0.9
W
0.9
W
0.8
W
0.7
W
1.2
W
1.8
WNW
1.7
W
1.6
W
1.5
W
Period(s) (?)1314141514141312121212111110991012111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)12261650205322881913135398359437428829419517815310376284928708545450
Wind
(km/h)
5
WNW
10
NE
5
NE
10
WNW
10
ENE
10
ENE
5
NW
10
ENE
10
ENE
5
SSW
10
ENE
10
ENE
5
WNW
5
NNE
10
E
10
WNW
5
E
5
W
10
W
15
SW
15
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
off
cross-
off
cross-
on
cross-
off
cross-
off
glasscross-
off
cross-
off
glassoffcross-
off
glasscross-
off
offonglassononcross-
on
on
High Tide
/ height (m)
5:10AM
1.40
4:17PM
1.15
5:54AM
1.44
5:45PM
1.04
6:34AM
1.49
7:14PM
1.01
7:10AM
1.53
8:33PM
1.04
7:43AM
1.56
9:37PM
1.10
8:14AM
1.59
10:31PM
1.16
8:45AM
1.61
Low Tide
/ height (m)
10:17PM
0.03
11:27AM
0.66
11:09PM
0.20
12:39PM
0.52
12:02AM
0.37
1:40PM
0.35
12:54AM
0.52
2:31PM
0.20
1:43AM
0.66
3:14PM
0.07
2:31AM
0.78
3:52PM
-0.02
3:15AM
0.87
Wed
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Sunrise--7:18--7:18--7:18--7:20--7:20--7:20--7:22
Sunset4:51--4:51--4:51--4:52--4:52--4:52--4:52--
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
part cloud
Rain (mm)
-------------------4-
Temp. °C141418161519171418171418181518171616161514
Feels °C (?)121216141316151115151215161215131415161412
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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