Rincon - Rivermouth Surf Break

Lat Long: 34.37° N 119.48° W

Rincon - Rivermouth Surf Forecast and Surf Report

Issued: 4 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rincon - Rivermouth sea temperature is
21.1°C
3.5° 

Rincon - Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rincon - Rivermouth surf forecast from 10 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 8PM (local time) - 1.5ft (0.5m), 17s period, SW swell with offshore winds.
  • Most powerful swell: Thursday 10 Sep, 11AM (local time) - 2ft (0.6m), 17s period, SW swell with 232 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 8PM (local time) - 1.5ft (0.5m), 17s period with SW swell.

Best Forecast Surf Conditions for Rincon - Rivermouth this week:

The surf forecast for Rincon - Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 09) at 8PM. The primary swell is predicted to be 0.5m and 17s period with a secondary swell of 0.4m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Rincon - Rivermouth in the next 16 days are 0.6m 17s and forecast to arrive on Thursday (Sep 10) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Saturday (Sep 12) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 9th Sep)1.5ft (0.5m) 17s
Best Surf 8PM (Wed 9th Sep)1.5ft (0.5m) 17s
Most Powerful11AM (Thu 10th Sep)2ft (0.6m) 17s

Table - best surf conditions forecast for Rincon - Rivermouth over the next 16 days.


The Lowdown

Alright, surf’s up… well, sort of. Let’s be real with you. The next two weeks aren't going to blow anyone out of the water, but there are a few windows where it could get fun if you know where to go. We’re looking at a stretch that starts slow, but the back half of the period has some promise.

Right off the bat, Wednesday and Thursday (the 9th and 10th) are pretty weak. We’re looking at ankle to knee-high dribble, around 1ft to 2ft, coming from the SW. The energy is weak, only 99 in the combined reading on Wednesday morning. The wind is light and cross-off, which will keep it clean, but there just isn’t any push. Thursday afternoon gets a bit more energy (240), but the wind goes a little cross, and it turns into a bit of a mess. Not worth getting wet for, unless you just need to paddle.

The weekend is more of the same, honestly. Friday and Saturday are small, in that 1ft to 2ft range, with poor conditions. The swell is fading, with periods dropping from 16 seconds down to 14 seconds. The energy is moderate, but it's not translating to any real shape. It’s just soft and lumpy.

Then Sunday the 13th, we see a bump. The swell jumps to around 3ft – 4ft, but the period has dropped to a short, crumbly 9 seconds. That’s a real weak windswell. The energy is moderate, but it’s not going to have any punch. Still, it’s the biggest we’ve seen, but it’s not breaking well. Wind is still light, but the quality just isn't there.

Monday the 14th and Tuesday the 15th are ugly. The swell is on the way down, and by Tuesday, the wind goes cross-on, and we get some short period junk from the SSW. That Tuesday afternoon reading shows a 20-second period pulse, but it’s only 1ft. Literally nothing.

Now here’s where things get interesting. From around the 18th of September, the models start showing a proper groundswell. We’ve got a solid SW swell coming in, with periods of 18 to 19 seconds. That’s proper groundswell, the kind that makes Rincon start to work. Wednesday the 18th and Thursday the 19th look like the pick of the whole run. The swell is still small, around 1ft to 2ft, but that long period and clean, light cross-off wind will make for some glassy, lined-up waves.

The standout is Rincon - Rivermouth (California). This is where you want to be. On Thursday the 19th, we’ve got that 2ft SW swell with an 18-second period. The combined energy is reading 356, which is moderate, but the quality of that long-period swell on a point break like this is the key. The light WSW cross-off wind is going to keep it clean and make it feel much bigger than the numbers suggest. It’s not going to be huge, but it will be perfect.

The following days, the 20th and 21st, look okay too. The swell hangs around 2ft to 2ft, but the period drops back slightly. Still, those afternoons are looking clean with that cross-off wind.

The last few days, from the 22nd on, the swell starts to fade and the period shortens back down. It turns into that same old story of small, weak, and cross-onshore. The energy drops back down to the 100-200 range. We’re back to the grovelers.

So, to sum it up: the first week and a half is a write-off. You might get a few grovelly ones, but nothing satisfying. The true standout is the Rincon - Rivermouth stretch on the 18th and 19th. That’s your window. It’s small but perfect. Beyond that, it’s a waiting game.

The water is warm, around 70°, which is 6° warmer than usual for this time of year, so you can get away with a thinner suit.

Keep an eye on the charts, but for now, this is the plan.

Rusty

Short Range Forecast

Mostly dry. Warm (max 34°C on Wed afternoon, min 22°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Sat afternoon, min 20°C on Sun night). Wind will be generally light.

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
2
2
1
0
1
0
1
1
1
1
2
0
1
1
0
0
1
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
17
0.5
SW
17
0.6
SW
17
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.5
SW
15
0.5
SW
14
0.4
SSW
14
1
WNW
6
1
W
9
1
W
9
1
W
10
0.8
W
9
0.7
W
9
0.6
W
9
0.6
W
8
0.3
SSW
20
0.3
SW
16
Wave Graph
Metric surfscale
Energy kJ
137
143
232
206
198
193
137
104
103
81
69
162
165
188
99
79
57
50
77
42
Wind (km/h)
15
W
5
NNW
10
SW
10
WSW
5
ENE
10
SSW
10
SW
0
N
10
SW
10
SW
5
NNW
10
SW
10
SW
5
N
10
SW
10
WSW
5
E
10
S
5
S
5
ENE
Wind State
cross-off
off
cross
cross-off
glassy
cross
cross
glassy
cross
cross-off
glassy
cross
cross
glassy
cross
cross-off
glassy
cross-on
cross-on
glassy
High Tide
9:00PM1.90m
9:59AM1.54m
9:44PM1.81m
10:27AM1.62m
10:28PM1.66m
10:55AM1.68m
11:12PM1.49m
11:24AM1.69m
00:00AM1.30m
11:53AM1.66m
00:55AM1.12m
12:23PM1.60m
2:11AM0.97m
Low Tide
2:54PM0.41m
3:42AM-0.17m
3:40PM0.29m
4:12AM-0.06m
4:25PM0.20m
4:41AM0.09m
5:09PM0.16m
5:08AM0.27m
5:55PM0.16m
5:34AM0.45m
6:45PM0.19m
5:57AM0.63m
7:43PM0.24m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:37
6:39
6:39
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:13
7:12
7:09
7:08
7:07
7:06
7:05
 mm
Temp °C
34
30
31
30
28
28
28
25
25
26
23
25
26
23
25
25
22
25
25
22
Feels °C
34
31
33
31
29
29
29
26
25
25
23
24
25
23
24
24
23
25
26
24
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  • 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 Rincon - Rivermouth Surf forecast

The above surf forecast table for Rincon - Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rincon - Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Rincon - Rivermouth 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 (Rincon - Rivermouth) 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 Rincon - Rivermouth 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.

Rincon - Rivermouth is 19 km (12 miles) from the city of Santa Ana. If you plan a vacation in Ventura County, look for hotels and other accommodation in Santa Ana. Santa Ana has rooms for a wide range of budgets as well as car hire and transport links.

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