Navarro Rivermouth Surf Break

Lat Long: 39.19° N 123.76° W

Navarro Rivermouth Surf Forecast and Surf Report

Issued: 4 pm 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Navarro Rivermouth sea temperature is
12.8° C
1.4° 

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 7 Aug 2026:

  • Best quality surf: Monday 10 Aug, 5AM (local time) - 8ft (2.5m), 9s period, NW swell with glassy winds.
  • Most powerful swell: Tuesday 11 Aug, 8PM (local time) - 10ft (3.0m), 9s period, NW swell with 1,516 kJ wave energy.
  • Next surfable swell (1★+): Monday 10 Aug, 5AM (local time) - 8ft (2.5m), 9s 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 10) at 5AM. The primary swell is predicted to be 2.5m and 9s period with a secondary swell of 2.5m and 9s. 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 3.0m 9s and forecast to arrive on Tuesday (Aug 11) 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 0.8m 16s period and expected on Sunday (Aug 09) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 10th Aug)8ft (2.5m) 9s
Best Surf 5AM (Mon 10th Aug)8ft (2.5m) 9s
Most Powerful 8PM (Tue 11th Aug)10ft (3.0m) 9s

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


The Lowdown

We’re looking at a pretty quiet stretch for the first few days. Through Thursday the 6th and into Friday the 7th, the surf is small and the wind is working against us. You’ll see chest to head high stuff at best on Friday, but it’s coming from the NW with a cross-onshore breeze, leaving it a bit lumpy. The swell energy is weak, only around 160 to 243 in the combined reading. Not worth paddling out unless you’re desperate for a splash. The water, by the way, is sitting at 13°, which is a bit colder than normal for this time of year—don't forget the booties.

Saturday the 8th starts to show some life. The swell builds to 1.8m in the morning and pushes to 2.4m by the afternoon, with the period dropping to 8 seconds. It’s got some push, but the NW wind stays on it, keeping things messy. The energy is ramping up though, going from 354 to 742. Still pretty average, but you can start to see the gears turning.

Sunday the 9th is where it gets real. The swell jumps to 2.5m in the morning and hits 3.0m by the afternoon. This is a solid push of NW swell, period up to 9 seconds. But the wind is up to 20 km/h from the NW, and it’s gonna be choppy. The energy numbers are strong now—1044 in the morning and 1360 in the afternoon—but the wind is really gonna mess with the surface. This is more of a power session for the experienced crew, and honestly, it might be more interesting for the kite surfers out there in the afternoon. This is a beach-and-reef setup, so with that much swell and that wind, it’s going to be a washing machine.

Now, here’s where it gets interesting. Monday the 10th through Thursday the 13th is the window you want to watch. The swell backs off slightly to a manageable 2.2m to 2.5m, but the big change is the wind. It goes light and variable, turning onshore from WSW in the mornings. That’s a game-changer. We’re talking clean, glassy conditions with the swell holding its ground around the 2.4m mark and the period stretching out to 9-10 seconds. The energy is solid, sitting in the 700 to 900+ range. This is the cleanest it’s going to get during this whole run, and the tide should be more favorable too. This is the time to get out there.

Friday the 14th starts to see it back off. Swell drops to 1.4m in the morning and 1.3m in the afternoon. The wind goes light, and there’s a chance for some fun waves, but the size is starting to fade.

The weekend of the 15th and 16th is a down period. We’re looking at small, weak surf around the 1m mark with the odd bump. Not much on offer. The energy is dropping back down to the low 100s. You might find a soft one if you’re keen, but it’s not worth a special trip.

The second week is more of a slow burn. The 17th and 18th are pretty poor—small, short period, cross-onshore wind. Not good. But then there’s a glimmer of hope on Wednesday the 19th. We see a new WNW swell pushing in, with the period jumping to 12 seconds. The height is around 1.9m in the morning. The energy is strong, nearly 1000, but the wind is back on it. That long period is good, but for this river mouth, it might have a tendency to straighten out. It’s a promise, but less certain.

The 20th and 21st look like more of the same—stronger swell in the 2.1m to 2.3m range, but short period and onshore winds. Not a good look. The whole run is on a downslide from there.

So, here’s the deal. The standout is Monday the 10th through Thursday the 13th. Focus your energy there. The swell is solid, the wind is right, and the waves should have some real shape to them. It won’t be world-class, but it’s the best we got for a while. Keep in mind, this spot is a rivermouth and can be inconsistent, so check the banks before you commit.

Rusty out.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Sat morning, min 11°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Sun afternoon, min 12°C on Sun night). Wind will be generally light.

Thu
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
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
0
0
1
0
1
1
0
1
2
1
1
2
2
1
3
2
2
2
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
13
0.9
NW
7
1.1
NW
6
1.3
NW
7
1.8
NW
7
1.8
NW
8
2.4
NW
8
3
NW
8
2.5
NW
9
3
NW
9
2.5
NW
8
2.3
NW
9
2.2
NW
9
2.5
NW
9
2.4
NW
9
2.5
NW
9
2.5
NW
9
2.5
NW
9
2.3
NW
9
2.1
NW
9
Wave Graph
Metric surfscale
Energy kJ
84
91
103
164
327
354
728
984
1023
1342
1002
760
730
895
901
1070
1108
980
816
767
Wind (km/h)
15
NW
5
N
15
NW
15
NW
10
NNW
15
NW
15
NW
15
NNW
20
NW
20
NW
15
NNW
10
WNW
15
NW
5
NNW
10
W
15
NW
5
N
10
WSW
10
W
10
SSW
Wind State
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
on
cross-on
cross
on
cross-on
glassy
on
on
cross
High Tide
5:30PM1.86m
8:16AM1.14m
6:29PM1.91m
9:31AM1.24m
7:33PM1.98m
10:24AM1.35m
8:36PM2.04m
11:07AM1.45m
9:36PM2.09m
11:46AM1.53m
10:31PM2.09m
12:23PM1.60m
11:23PM2.05m
Low Tide
1:00AM0.09m
12:07PM0.95m
2:07AM-0.06m
1:25PM1.00m
3:07AM-0.20m
2:35PM0.97m
4:00AM-0.29m
3:37PM0.89m
4:48AM-0.34m
4:32PM0.79m
5:31AM-0.32m
5:25PM0.68m
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:20
8:19
8:17
8:16
8:15
8:14
 mm
Temp °C
14
12
16
16
14
17
17
15
16
16
14
16
16
13
15
16
14
15
16
14
Feels °C
12
10
14
14
13
14
14
13
13
12
11
15
14
13
14
14
12
14
15
14
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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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