Surf Forecasts:
Navarro Rivermouth surf forecast from 26 Aug 2026:
- Best quality surf: Sunday 30 Aug, 8AM (local time) - 7.5ft (2.3m), 8s period, NW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 8PM (local time) - 8ft (2.5m), 8s period, NW swell with 773 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 8AM (local time) - 2ft (0.6m), 16s period with SW 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 Wednesday (Aug 26) at 8AM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.6m and 5s is also forecast. 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 2.5m 8s and forecast to arrive on Saturday (Aug 29) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 18s period and expected on Saturday (Aug 29) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 26th Aug) | 2ft (0.6m) 16s |
| Best Surf | 8AM (Sun 30th Aug) | 7.5ft (2.3m) 8s |
| Most Powerful | 8PM (Sat 29th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the pike for your local sandbar.
Right off the bat, I’ve gotta be straight with you – the next couple of weeks are looking lean and mean here at Navarro Rivermouth. We’ve got a long, drawn-out run of poor conditions stretching from Wednesday, August 26th, all the way through to the end of the first week of September. The wind is almost always blowing cross-on or cross-shore, messing up any chance of a clean face. The swell is small and choppy, with a weak energy reading of just 301 in the combined energy department on the Wednesday morning.
We finally see a brief flicker of hope on Friday, September 4th. The morning shows some potential with a clean 8ft NW swell arriving, and the wind is light and onshore. The combined swell energy jumps to a strong 1069, and the period is a solid 10 seconds, meaning there’s some real power behind it. The wave comment says “marginal surf forecast or questionable tide conditions,” so it’s not a guaranteed clean session, but it’s the best we’ve got. It's still too big for beginners, but for the experienced crew, this is the one to have on your radar. The afternoon holds similar size at 7ft, with light cross-on wind and high energy at 904.
After that, it fades back into mediocrity. There’s a bit of size again on Thursday, September 10th, but with a 2ft SW windswell of very long period (24 seconds) and moderate cross-onshore wind, the setup looks more interesting for a kite surfer than a paddle surfer at a rivermouth like this. The rest of the run is mostly small, choppy, and poor.
So, to sum it up: if you absolutely have to get wet, keep your eyes peeled for Friday, September 4th. The morning looks like the most promising moment for a solid, powerful wave, even if the conditions aren't perfect. Everything else is a write-off.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Sat morning, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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) | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 6 |
Wave Graph | |||||||||||||||||||
206 | 203 | 201 | 181 | 134 | 171 | 167 | 251 | 408 | 296 | 287 | 601 | 531 | 480 | 403 | 559 | 336 | 151 | 79 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | on | cross-on | glassy | on | cross-on | glassy |
High Tide | 9:55PM1.81m | 11:45AM1.47m | 10:37PM1.82m | 12:08PM1.52m | 11:18PM1.80m | 12:31PM1.58m | 00:00AM1.74m | 12:55PM1.65m | 00:44AM1.65m | 1:22PM1.71m | 1:34AM1.53m | 1:52PM1.76m | 2:31AM1.40m | ||||||
Low Tide | 4:55AM-0.01m | 4:50PM0.79m | 5:25AM-0.01m | 5:25PM0.69m | 5:54AM0.03m | 6:02PM0.59m | 6:23AM0.11m | 6:41PM0.47m | 6:53AM0.23m | 7:24PM0.37m | 7:26AM0.37m | 8:12PM0.27m | |||||||
— | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | |
— | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:46 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 16 | 17 | 15 | 16 | 15 | 13 | 15 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 14 |
Feels °C | 11 | 14 | 14 | 15 | 14 | 12 | 12 | 13 | 11 | 12 | 12 | 11 | 10 | 12 | 11 | 11 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | S 12 | SW 15 | SW 14 | SSW 17 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | NW 8 | SSW 15 | NW 8 | NW 7 | SSW 14 | SSW 13 |
206 | 203 | 201 | 181 | 110 | 171 | 167 | 351 | 572 | 531 | 887 | 742 | 627 | 480 | 512 | 444 | 253 | 321 | 204 | |
Swell 2 Height (m) Direction Period (s) | S 13 | W 13 | WNW 8 | SSE 13 | SW 15 | W 11 | NW 8 | S 11 | S 11 | SSE 10 | S 9 | S 9 | S 10 | SSW 16 | W 11 | SSW 15 | SSW 14 | W 10 | SSE 14 |
123 | 85 | 19 | 141 | 134 | 63 | 58 | 94 | 61 | 33 | 16 | 15 | 7 | 724 | 10 | 405 | 394 | 17 | 37 | |
Swell 3 Height (m) Direction Period (s) | W 14 | S 12 | W 12 | WNW 6 | WNW 9 | S 12 | S 11 | SW 13 | SW 13 | — | — | — | W 12 | S 9 | S 9 | SE 14 | SSE 13 | SSE 15 | WNW 10 |
102 | 75 | 47 | 24 | 52 | 71 | 93 | 62 | 87 | — | — | — | 11 | 7 | 2 | 8 | 17 | 22 | 18 | |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 4 | NW 5 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | — | NW 8 | NW 8 | NW 7 | NW 7 | NW 6 |
11 | 13 | 35 | 50 | 67 | 138 | 162 | 251 | 408 | 296 | 287 | 601 | 531 | — | 403 | 559 | 336 | 151 | 79 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 116 | 290 | 13 | 190 | 291 | 13 | 280 | 291 | 13 | 190 | 291 | 13 | 147 | 291 | 0 | 438 | 290 | 0 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











