Dillon Beach Surf Break

Lat Long: 38.24° N 122.97° W

Dillon Beach Surf Forecast and Surf Report

Issued: 4 pm 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dillon Beach sea temperature is
16.1°C
1.7° 

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


Dillon Beach surf forecast from 23 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 5AM (local time) - 5.5ft (1.7m), 7s period, NW swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 11AM (local time) - 3.5ft (1.1m), 18s period, SW swell with 703 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 5AM (local time) - 5.5ft (1.7m), 7s period with NW swell.

Best Forecast Surf Conditions for Dillon Beach this week:

The surf forecast for Dillon Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 5AM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 1.3m and 7s. Another secondary swell of 0.4m and 15s 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 16 days are 1.1m 18s and forecast to arrive on Saturday (Aug 29) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 11s period and expected on Friday (Aug 28) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 23rd Aug)5.5ft (1.7m) 7s
Best Surf 5AM (Sun 23rd Aug)5.5ft (1.7m) 7s
Most Powerful11AM (Sat 29th Aug)3.5ft (1.1m) 18s

Table - best surf conditions forecast for Dillon Beach over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 20°C on Sun morning, min 12°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Wed afternoon, min 13°C on Wed night). Wind will be generally light.

Sat
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
0
2
1
0
1
0
0
1
0
0
0
0
0
1
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
NW
6
1.3
WNW
6
1.3
WNW
8
1.2
WNW
8
1.3
WNW
8
0.5
SW
18
0.5
SW
17
0.5
SW
17
0.6
SW
16
0.6
SW
16
0.5
SW
16
0.6
SW
16
2.1
WNW
6
0.7
S
13
1.5
WNW
6
2.3
WNW
7
1.7
WNW
7
1.5
WNW
7
2.1
WNW
7
1.7
WNW
8
Wave Graph
Metric surfscale
Energy kJ
240
116
183
162
183
155
147
143
219
165
124
159
346
165
164
472
297
230
403
337
Wind (km/h)
25
WNW
5
NW
10
WSW
15
W
5
WSW
10
SW
15
WNW
10
WNW
15
W
20
WNW
5
NW
15
WNW
25
WNW
15
NW
20
WNW
25
WNW
10
NW
15
WNW
25
WNW
10
NW
Wind State
cross-on
cross-on
cross-on
on
glassy
cross-on
on
on
on
on
cross-on
on
on
cross-on
on
on
cross-on
on
on
cross-on
High Tide
7:43PM1.49m
10:35AM1.21m
8:37PM1.53m
11:06AM1.23m
9:25PM1.57m
11:33AM1.26m
10:09PM1.59m
11:57AM1.29m
10:50PM1.59m
12:21PM1.34m
11:31PM1.56m
12:45PM1.39m
00:13AM1.51m
Low Tide
2:34PM0.97m
3:41AM0.10m
3:28PM0.92m
4:23AM0.05m
4:12PM0.86m
4:59AM-0.00m
4:50PM0.78m
5:31AM-0.03m
5:26PM0.70m
6:01AM-0.02m
6:01PM0.61m
6:29AM0.01m
6:38PM0.52m
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:35
6:35
6:35
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:55
7:54
7:52
7:52
7:50
7:49
7:47
 mm
Temp °C
19
17
20
18
12
16
16
13
16
15
15
18
19
17
18
17
15
18
18
16
Feels °C
15
13
19
16
11
15
14
12
14
12
14
15
14
13
15
12
11
15
14
12
  • 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 16 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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