Navarro Rivermouth Surf Break

Lat Long: 39.19° N 123.76° W

Navarro Rivermouth Surf Forecast and Surf Report

Issued: 10 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Navarro Rivermouth sea temperature is
13.0° C
1.5° 

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 17 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 11PM (local time) - 7ft (2.1m), 7s period, NW swell with glassy winds.
  • Most powerful swell: Saturday 22 Aug, 8PM (local time) - 7ft (2.1m), 8s period, NW swell with 581 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 5AM (local time) - 3.5ft (1.1m), 6s 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 Monday (Aug 17) at 5AM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Navarro Rivermouth in the next 16 days are 2.1m 8s and forecast to arrive on Saturday (Aug 22) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 14s period and expected on Monday (Aug 17) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 17th Aug)3.5ft (1.1m) 6s
Best Surf11PM (Wed 19th Aug)7ft (2.1m) 7s
Most Powerful 8PM (Sat 22nd Aug)7ft (2.1m) 8s

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


The Lowdown

Alright, this is Rusty, and I’m looking at the outlook for Navarro Rivermouth. Straight up, it’s a tough stretch ahead. The good news? There’s consistent swell energy building through the week, but the wind is mostly blowing in the wrong direction, keeping things messy. The combined wave energy readings start off weak at 138 and climb into the moderate range, hitting 655 by Sunday the 23rd, but the cross-onshore wind just won’t let up. The water temp is about average for this time of year, so no surprises there.

The first real chance of something decent doesn’t show up until Sunday the 23rd afternoon. It’s still marginal, with a 6ft swell from the NW and a 9-second period, and the wind is light cross-onshore. The energy is solid at 614, but it’s not clean. Monday the 24th is a bit better with a light onshore wind in the morning, but the swell drops to 5ft. Still, with a period of 8 seconds, it’s not got much push.

Now, the standout – and I mean the only real standout – is way out there on Monday the 31st of August. Afternoon session sees a glassy, near-calm wind, with a 2ft long-period swell from the SW at 14 seconds. The energy is moderate at 526, and the conditions are described as "expect good surf conditions." That’s a rare bright spot in this forecast. But being 2 weeks out, treat it as promising, but not locked in.

In between, there’s a long gap of days with poor surf and marginal conditions. The swell does peak at 7ft on Thursday the 27th morning, but with onshore wind and a short 8-second period, it’s not going to be clean. Most of the time here, the wind is cross-onshore and the waves are choppy. For a rivermouth break that’s inconsistent and exposed to NW swell, this setup is a real letdown. Honestly, if you’re looking for clean paddle surfing, you’re going to be waiting. The wind and short-period swell make this more of a kite-surfing window than anything else.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 14°C on Mon morning, min 11°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Thu morning, min 11°C on Thu night). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
1
0
0
1
0
0
1
0
0
1
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)
1.3
NW
7
1.1
NW
7
1.1
NW
7
1.5
NW
7
1.5
NW
7
1.6
NW
7
1.7
NW
7
1.8
NW
8
2
NW
7
1.7
NW
7
1.6
NW
7
1.5
NW
7
1.6
NW
7
1.6
NW
7
1.7
NW
7
1.7
NW
7
1.7
NW
7
2
NW
8
1.9
NW
8
Wave Graph
Metric surfscale
Energy kJ
155
99
105
218
212
239
285
345
423
271
237
189
240
219
248
261
295
458
481
Wind (km/h)
5
SW
10
W
10
NW
5
NNW
15
WNW
15
NW
10
NNW
15
NW
20
NW
5
N
15
NW
20
NW
10
NNW
15
NW
20
NW
5
N
15
NW
15
NW
5
N
Wind State
glassy
on
cross-on
glassy
on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
glassy
High Tide
2:55AM1.41m
3:15PM1.74m
4:03AM1.25m
3:52PM1.71m
5:32AM1.14m
4:36PM1.68m
7:21AM1.13m
5:28PM1.65m
8:50AM1.20m
6:27PM1.65m
9:45AM1.27m
7:27PM1.67m
Low Tide
8:54PM0.38m
8:44AM0.47m
9:52PM0.35m
9:27AM0.67m
10:55PM0.32m
10:17AM0.85m
00:03AM0.29m
11:25AM0.99m
1:12AM0.24m
12:44PM1.05m
2:13AM0.18m
1:54PM1.05m
3:04AM0.11m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:30
6:31
6:31
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:08
8:07
8:06
8:05
8:02
8:01
8:00
 mm
Temp °C
13
14
14
12
13
14
12
14
14
12
14
14
12
14
14
13
14
14
13
Feels °C
13
13
13
11
11
11
11
11
11
10
11
11
10
11
11
12
11
11
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Navarro Rivermouth:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Navarro Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest