Navarro Rivermouth Surf Break

Lat Long: 39.19° N 123.76° W

Navarro Rivermouth Surf Forecast and Surf Report

Issued: 4 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Navarro Rivermouth sea temperature is
11.9°C
2.9° 

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 1 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 8PM (local time) - 7.5ft (2.3m), 12s period, NW swell with glassy winds.
  • Most powerful swell: Friday 4 Sep, 2AM (local time) - 8ft (2.5m), 12s period, NW swell with 1,805 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 1 Sep, 11PM (local time) - 3.5ft (1.0m), 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 Tuesday (Sep 01) at 11PM. The primary swell is predicted to be 1.0m and 10s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Navarro Rivermouth in the next 16 days are 2.5m 12s and forecast to arrive on Friday (Sep 04) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 16s period and expected on Saturday (Sep 05) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 1st Sep)3.5ft (1.0m) 10s
Best Surf 8PM (Thu 3rd Sep)7.5ft (2.3m) 12s
Most Powerful 2AM (Fri 4th Sep)8ft (2.5m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s on the table for the next couple of weeks at Navarro Rivermouth.

We’re looking at a pretty frustrating start. The first few days are a write-off. Tuesday the 1st and Wednesday the 2nd are all poor surf conditions with cross-shore or cross-onshore winds and weak, messy energy. The combined swell energy is in the low hundreds (109 to 397) – not enough to get excited about, and the wind is just ruining what little shape there is.

Thursday the 3rd sees a jump in size, with swell hitting 6 ft to 7 ft from the WNW/NW, and the wave energy climbs into the 500s and over 1000 (528 to 1084). But the wind is still cross-on, and the forecast calls it marginal. It’s not gonna be pretty. Friday the 4th is similar, with 7 ft from the NW dropping to 6 ft, but those cross-onshore winds are still there making it choppy. Saturday the 5th and Sunday the 6th are small, below 4 ft, and messy.

We’ve got a real gap here. It’s not until Monday the 8th that we start to see something worth looking at. Monday morning the 8th has 8 ft from the NW, and 8 ft in the afternoon. The wind is light cross-on, but the swell period is only 9 seconds, so it’s a bit short and won’t hold shape well. The energy is strong (974 and 816), but with the wind and short period, it’s only marginal.

Now, here’s the standout. On Thursday the 10th, we get a moment of glass. The afternoon shows 5 ft of NW swell with a 12-second period, and the wind goes glassy with a slight air. The combined energy is 593 – moderate. The wind is glassy, so the surface will be clean. This is the best wave of the first week. The swell direction is NW, which is the optimum for this river-mouth break. The water is running about 53°F, which is much colder than normal for the time of year – a solid 5°F cooler, so you’ll want a thick wetsuit.

The following week is a mixed bag. Friday the 11th has a 16-second period swell from the SW, but it’s only 3 ft and cross-on wind pushes it to marginal. Saturday the 12th is small and poor. The next real blip is the final day of the forecast. Wednesday the 16th. The morning sees 10 ft from the NW with an 8-second period and light cross-on wind – that’s a lot of water and a short period, making it pretty chaotic. The afternoon though, that’s a heavy warning. We’re looking at 15 ft of NW swell, glassy wind, and a massive combined energy of 3246. The wind is perfect, but it’s predicted to be too big for this break. Only for experts, and even then, it’s on the edge.

For a novice, this is a tough run. The break is inconsistent and often crowded. The best bet for a clean, workable wave is the Thursday afternoon the 10th – that glassy 5 ft NW swell. It’s the only time in the period where the stars align for a decent, clean session.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Very mild (max 16°C on Tue morning, min 12°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Fri morning, min 11°C on Fri night). Wind will be generally light.

Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
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
0
0
1
1
2
4
1
0
2
0
0
1
0
0
1
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
NW
11
0.9
NW
10
0.9
NW
10
0.6
SW
18
0.9
WNW
9
1.5
W
8
1.7
WNW
10
2.1
NW
11
2.5
NW
12
2.1
NW
11
1.8
NW
10
1.4
NW
10
1.1
NW
9
1.1
NW
9
1.2
NW
9
0.8
NW
9
0.8
NW
9
0.7
NW
8
0.6
NW
8
1.7
NW
6
2.4
NW
8
Wave Graph
Metric surfscale
Energy kJ
71
167
154
246
135
301
528
1084
1805
972
634
373
206
206
220
109
107
69
42
203
690
Wind (km/h)
10
SSW
15
SW
10
ESE
20
SSW
20
S
20
SSE
10
S
5
SW
5
NE
10
WNW
15
NW
5
SE
10
WNW
15
NW
5
E
10
WNW
15
NNW
5
NE
10
NW
15
NW
10
NE
Wind State
cross
cross-on
off
cross
cross
cross-off
cross
cross-on
cross-off
cross-on
cross-on
cross-off
on
cross-on
glassy
on
cross-on
cross-off
cross-on
cross-on
cross-off
High Tide
2:26PM1.80m
3:40AM1.27m
3:08PM1.82m
5:08AM1.18m
4:00PM1.83m
6:50AM1.19m
5:03PM1.83m
8:14AM1.27m
6:14PM1.84m
9:11AM1.37m
7:27PM1.87m
9:55AM1.47m
8:34PM1.91m
Low Tide
8:02AM0.55m
9:07PM0.20m
8:43AM0.72m
10:10PM0.14m
9:34AM0.88m
11:23PM0.09m
10:47AM1.00m
00:40AM0.02m
12:15PM1.04m
1:50AM-0.05m
1:36PM0.98m
2:50AM-0.12m
2:42PM0.86m
3:40AM-0.14m
cloud
part cloud
rain showers
part cloud
part cloud
mod rain
rain showers
rain showers
part cloud
clear
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
6:45
6:46
6:46
6:47
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:44
7:43
7:40
7:38
7:37
7:36
 mm
1
8
2
1
Temp °C
16
16
15
16
16
15
15
15
13
15
15
13
14
15
12
14
14
12
15
15
17
Feels °C
15
13
13
13
12
13
15
14
14
13
13
12
12
12
11
13
12
11
13
12
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 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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