
Surf Forecasts:
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 Type | Time (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 ForecastMostly dry. Very mild (max 16°C on Sun afternoon, min 11°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly 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 | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | NW 9 | NW 9 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
211 | 471 | 585 | 639 | 1220 | 643 | 517 | 694 | 724 | 596 | 470 | 311 | 351 | 277 | 145 | 303 | 303 | 236 | 255 | 375 | 375 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | ||||||||
6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | |
— | 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 |
Swell 1 Height (m) Direction Period (s) | NW 9 | SW 13 | SSW 13 | NW 8 | SW 17 | SW 17 | NW 8 | SW 16 | SW 16 | SW 16 | SSW 17 | NW 8 | NW 9 | NW 8 | NW 8 | NW 8 | NW 9 | NW 8 | SW 18 | SW 18 | SW 18 |
211 | 142 | 116 | 639 | 107 | 106 | 517 | 122 | 87 | 121 | 197 | 311 | 351 | 277 | 145 | 156 | 126 | 100 | 255 | 375 | 375 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 19 | SW 19 | SW 13 | SW 13 | SW 12 | SW 16 | NW 13 | NW 12 | S 19 | WNW 11 | SSW 18 | S 16 | SSW 16 | SSW 15 | SW 19 | SW 19 | SW 19 | NNW 8 | SSW 13 | SSW 13 |
186 | 57 | 127 | 84 | 82 | 39 | 130 | 44 | 37 | 118 | 48 | 103 | 137 | 198 | 128 | 303 | 303 | 236 | 59 | 69 | 58 | |
Swell 3 Height (m) Direction Period (s) | WSW 11 | SW 16 | WSW 10 | SW 17 | WNW 15 | WNW 14 | WNW 13 | SSW 21 | SSW 20 | NW 12 | SW 24 | SW 14 | SW 21 | SW 21 | NW 10 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | NW 10 | S 10 |
23 | 41 | 10 | 107 | 84 | 21 | 69 | 89 | 75 | 37 | 22 | 71 | 160 | 162 | 47 | 167 | 120 | 105 | 69 | 25 | 18 | |
Wind waves Height (m) Direction Period (s) | — | NW 9 | NW 9 | — | NW 8 | NW 8 | — | NW 8 | NW 8 | NW 8 | NW 8 | — | SSE 2 | S 3 | — | — | — | — | NW 5 | NW 5 | NW 6 |
— | 471 | 585 | — | 1220 | 643 | — | 694 | 724 | 596 | 470 | — | 1 | 1 | — | — | — | — | 23 | 68 | 111 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 291 | 293 | 13 | 147 | 291 | 13 | 84 | 42 | 13 | 147 | 194 | 0 | 23 | 47 | 0 | 98 | 95 | 0 | 171 | 290 | 13 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










