Dillon Beach Surf Break

Lat Long: 38.24° N 122.97° W

Dillon Beach Surf Forecast and Surf Report

Issued: 10 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Dillon Beach sea temperature is
15.2°C
0.7° 

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 18 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 8AM (local time) - 7ft (2.1m), 8s period, NW swell with glassy winds.
  • Most powerful swell: Wednesday 23 Sep, 2AM (local time) - 8ft (2.5m), 10s period, NW swell with 1,319 kJ wave energy.
  • Next surfable swell (1★+): Friday 18 Sep, 5AM (local time) - 2ft (0.6m), 14s period with SSW 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 Friday (Sep 18) at 5AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.7m and 8s. 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 2.5m 10s and forecast to arrive on Wednesday (Sep 23) at 2AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 18th Sep)2ft (0.6m) 14s
Best Surf 8AM (Sun 20th Sep)7ft (2.1m) 8s
Most Powerful 2AM (Wed 23rd Sep)8ft (2.5m) 10s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Fri morning, min 13°C on Sat morning). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Tue morning, min 12°C on Sun night). Wind will be generally light.

Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
1
2
0
1
1
0
4
2
1
3
2
2
4
2
1
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
15
0.6
SW
19
0.6
SW
19
0.5
SW
19
1.6
NW
7
1.6
NW
7
1.6
NW
7
1.5
WNW
8
0.7
SW
19
2.1
NW
8
0.8
SW
17
0.8
SW
17
1.7
WNW
9
1.5
WNW
8
1.9
NW
11
2.5
NW
10
1.7
WNW
11
1.4
NW
11
1.7
NW
11
Wave Graph
Metric surfscale
Energy kJ
104
236
236
184
255
252
254
264
362
567
342
346
411
315
944
1319
645
485
690
Wind (km/h)
5
NNE
10
W
25
WNW
10
NW
10
WSW
20
WNW
10
NW
10
WNW
20
WNW
5
NNW
10
SW
10
W
5
E
10
SW
15
WNW
5
E
10
W
15
WNW
5
WNW
Wind State
glassy
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
glassy
cross-on
on
off
cross-on
on
glassy
on
on
glassy
High Tide
7:18AM1.09m
4:47PM1.38m
8:30AM1.14m
5:57PM1.36m
9:14AM1.18m
7:07PM1.37m
9:46AM1.22m
8:08PM1.41m
10:12AM1.26m
9:01PM1.44m
10:36AM1.31m
9:49PM1.46m
Low Tide
11:46PM0.23m
11:45AM1.01m
00:57AM0.23m
1:12PM1.00m
2:02AM0.20m
2:18PM0.93m
2:55AM0.15m
3:08PM0.84m
3:38AM0.11m
3:50PM0.72m
4:14AM0.08m
4:28PM0.60m
4:46AM0.09m
clear
clear
part cloud
clear
clear
part cloud
clear
cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:56
6:56
6:58
6:58
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:14
7:12
7:09
7:08
7:07
 mm
Temp °C
15
18
17
14
18
17
14
15
16
13
16
16
12
18
17
14
18
17
15
Feels °C
14
17
14
11
17
15
11
13
13
11
15
15
12
17
16
14
17
15
14
  • 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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