Navarro Rivermouth Surf Break

Lat Long: 39.19° N 123.76° W

Navarro Rivermouth Surf Forecast and Surf Report

Issued: 4 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Navarro Rivermouth sea temperature is
14.0°C
0.7° 

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


Navarro Rivermouth surf forecast from 13 Sep 2026:

  • Best quality surf: Monday 14 Sep, 5AM (local time) - 6.5ft (2.0m), 8s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 5PM (local time) - 10ft (3.0m), 8s period, NW swell with 1,220 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 8AM (local time) - 3ft (0.9m), 10s period with NW swell.

Best Forecast Surf Conditions for Navarro Rivermouth this week:

The surf forecast for Navarro Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 8AM. The primary swell is predicted to be 0.9m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Navarro Rivermouth in the next 16 days are 3.0m 8s and forecast to arrive on Monday (Sep 14) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Sunday (Sep 13) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 13th Sep)3ft (0.9m) 10s
Best Surf 5AM (Mon 14th Sep)6.5ft (2.0m) 8s
Most Powerful 5PM (Mon 14th Sep)10ft (3.0m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into it.

Looking at the whole 16-day window, I gotta be honest with you – it’s a grim run for Navarro Rivermouth. The river mouth setup is inconsistent at the best of times, and this stretch is looking like a long, quiet period with hardly a window that’s worth paddling out. The whole first week is a write-off. From Sunday the 13th right through to the end of the following Saturday the 21st, there’s nothing but poor conditions with cross-onshore wind and choppy, lumpy surfaces. Swell energy is all over the shop but mostly moderate to strong (712 to 1549 for the combined energy), yet the wind just ruins it.

There is a brief flicker of hope on Tuesday the 22nd morning – we see a light breeze with the wind switching onshore from the WSW. You’ve got a 7ft NW swell with a period of 8 seconds, and combined energy reading 827. The score barely gets a nod, but it’s the closest to ridable we get in the first two weeks. Still very marginal, and with the spot being so inconsistent, you’d be a die-hard to go for it.

Then on Wednesday the 23rd afternoon, things get a little more interesting. We’re looking at 8ft of NW swell, period jumps up to 12 seconds – that’s proper groundswell energy right there (combined energy 1872). The wind is light WNW, so it’s cross-on but light enough that the surface might clean up a bit. This is the best looking slot in the whole forecast. That said, at 8ft this is pushing past the beginner zone, and with the period that long at a river mouth, it might be a bit straight and tricky. But for anyone who knows the spot, this is the moment to watch.

Friday the 25th morning also has size – 8ft NW swell with 11 seconds, combined energy at 2666 – strong stuff. But the wind is cross-on from the SSW and it’s fairly choppy. It’s there, but it ain’t pretty.

After that, the last few days fade into smaller, longer period SW groundswell but with more cross-on wind, so nothing solid enough to recommend.

Overall, if you’re aching for a wave, aim for Wednesday the 23rd afternoon. That’s the standout, but keep your expectations in check. The rest of the run is mostly about waiting for a better forecast.

- Rusty

Short Range Forecast

Mostly dry. Very mild (max 16°C on Sun afternoon, min 11°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Thu morning, min 12°C on Wed morning). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
1
0
2
2
0
2
0
0
2
0
1
1
1
0
2
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
NW
9
1.7
NW
9
2
NW
9
2.2
NW
8
3
NW
8
2.3
NW
8
2
NW
8
2.3
NW
8
2.3
NW
8
2.1
NW
8
1.9
NW
8
1.6
NW
8
1.6
NW
9
1.4
NW
8
1.1
NW
8
0.6
SW
19
0.6
SW
19
0.6
SW
19
0.6
SW
18
0.8
SW
18
0.8
SW
18
Wave Graph
Metric surfscale
Energy kJ
211
471
585
639
1220
643
517
694
724
596
470
311
351
277
145
303
303
236
255
375
375
Wind (km/h)
20
NW
25
NNW
10
N
15
NW
25
NNW
15
NNW
10
WNW
15
NW
15
N
15
NW
15
NW
0
ESE
10
SW
5
W
10
NNE
10
WNW
15
NW
0
NW
15
WNW
20
NNW
15
NNW
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross
on
cross-on
cross
cross-on
cross-on
glassy
cross-on
on
cross-off
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
High Tide
1:11PM1.78m
1:53AM1.48m
1:40PM1.76m
2:51AM1.35m
2:13PM1.72m
3:59AM1.24m
2:50PM1.66m
5:25AM1.19m
3:37PM1.60m
7:04AM1.20m
4:35PM1.55m
8:17AM1.26m
5:43PM1.53m
Low Tide
7:31PM0.17m
7:26AM0.56m
8:17PM0.16m
8:04AM0.74m
9:07PM0.17m
8:47AM0.90m
10:03PM0.21m
9:43AM1.02m
11:08PM0.24m
11:05AM1.09m
00:19AM0.24m
12:32PM1.09m
1:24AM0.22m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:56
6:56
6:56
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:27
7:24
7:22
7:22
7:20
7:19
7:16
 mm
Temp °C
15
16
14
15
15
13
15
15
14
14
14
14
16
15
14
16
15
13
14
14
14
Feels °C
12
12
11
12
11
10
13
12
13
12
12
13
15
14
13
15
14
12
12
11
11
  • Map Icons:
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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 Navarro Rivermouth Surf forecast

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

Navarro Rivermouth is 48 km (30 miles) from Ukiah. If you plan a vacation in Mendocino County, look for hotels and other accommodation in Ukiah. Ukiah has rooms for a wide range of budgets as well as car hire and transport links.

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