Surf Forecasts:
Navarro Rivermouth surf forecast from 27 Aug 2026:
- Best quality surf: Sunday 30 Aug, 8AM (local time) - 7ft (2.2m), 8s period, NW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 8PM (local time) - 10ft (3.0m), 8s period, NW swell with 885 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 11PM (local time) - 6ft (1.8m), 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 Thursday (Aug 27) at 11PM. The primary swell is predicted to be 1.8m and 6s period with a secondary swell of 0.6m and 14s. 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 8s and forecast to arrive on Saturday (Aug 29) 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 1.2m 18s period and expected on Saturday (Aug 29) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 27th Aug) | 6ft (1.8m) 6s |
| Best Surf | 8AM (Sun 30th Aug) | 7ft (2.2m) 8s |
| Most Powerful | 8PM (Sat 29th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s get straight to it.
Right now, through the entire 16-day window, it’s looking like a tough stretch for the Navarro Rivermouth area. We’ve got a solid block of poor surf conditions stretching from Thursday the 27th of August all the way through to Tuesday the 8th of September. That’s nearly two weeks of messy, choppy waves and cross-onshore wind. The swell does show up at times, hitting 8ft on the 29th, but it’s short-period stuff around 7 to 8 seconds and the wind just destroys any chance of a clean face. The energy is moderate to strong in spots—like 684 on the 30th—but it’s all windslop. This is not paddle-surfing weather; if you have a kite, that Saturday the 29th with 8ft and 16 mph wind might get you going, but for a surfboard, it’s a no-go.
There’s a very small glimmer on Wednesday the 9th of September morning. The wind goes light and the swell shifts to WNW with a long 16-second period, pushing energy up to 506. The report says it’s “marginal,” but that’s the only time in the whole run where it might be worth a look. That long-period groundswell suits a river mouth setup like this, but it’s an inconsistent spot and it’s only around 3ft, so don’t get your hopes up. After that, the rest of the week fades back into light cross-onshore chop and weak energy.
Honestly, this is a blank run for the area. The only standout, if you can call it that, is that Wednesday morning on the 9th. It’s far out, so keep an eye on it, but with the inconsistency here, it’s more normal to have a long stretch like this with nothing good to offer.
This is Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 16°C on Thu morning, min 11°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Tue afternoon, min 10°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | SW 15 | SW 15 | SW 14 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 10 | NW 9 | SW 17 | NW 9 | NW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 134 | 171 | 167 | 192 | 317 | 361 | 318 | 756 | 459 | 624 | 684 | 565 | 292 | 189 | 113 | 63 | 98 | 117 | 186 | 179 | 211 |
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 | cross-on | cross-on | cross | cross-on | cross-on | cross | on | cross-on | cross | on | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 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 | 2:26PM1.80m | 3:40AM1.27m | 3:08PM1.82m | ||||||||
Low Tide | 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 | 8:02AM0.55m | 9:07PM0.20m | 8:43AM0.72m | 10:10PM0.14m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — |
 | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 13 | 15 | 14 | 14 | 14 | 15 | 14 | 14 | 15 | 13 | 14 | 15 | 14 | 15 | 16 | 14 | 14 | 15 | 13 |
Feels °C | 14 | 13 | 11 | 13 | 11 | 13 | 11 | 12 | 10 | 12 | 12 | 11 | 12 | 13 | 13 | 14 | 15 | 13 | 12 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | S 12 | WNW 8 | SW 14 | SSW 17 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | NW 8 | SSW 15 | SSW 15 | NW 8 | NW 7 | NW 7 | NW 7 | SSW 13 | NW 9 | NW 9 | NW 9 | NW 9 |
| kJ | 110 | 88 | 167 | 351 | 566 | 531 | 887 | 742 | 627 | 492 | 512 | 405 | 292 | 189 | 113 | 63 | 154 | 117 | 176 | 179 | 211 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | SW 15 | S 11 | S 11 | S 11 | SSE 10 | S 9 | S 9 | S 10 | SSW 16 | S 9 | S 9 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | NW 10 | NW 5 | SW 17 | S 12 | S 12 |
| kJ | 52 | 171 | 93 | 94 | 59 | 33 | 15 | 15 | 7 | 724 | 2 | 2 | 394 | 321 | 207 | 154 | 98 | 24 | 186 | 146 | 239 |
Swell 3 Height (m) Direction Period (s) | SW 15 | S 12 | NW 8 | SW 13 | SW 13 | — | — | — | W 12 | S 10 | — | S 9 | SSE 17 | SSE 17 | SSE 15 | SSE 13 | SSE 12 | S 12 | SSW 12 | SSW 12 | SW 16 |
| kJ | 134 | 71 | 58 | 62 | 87 | — | — | — | 11 | 7 | — | 2 | 29 | 97 | 172 | 139 | 117 | 99 | 87 | 58 | 132 |
Wind waves Height (m) Direction Period (s) | NW 5 | NW 6 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 8 | NW 8 | NW 8 | — | — | — | — | NW 7 | — | — | — | — |
| kJ | 57 | 104 | 144 | 192 | 317 | 361 | 318 | 756 | 459 | 624 | 684 | 565 | — | — | — | — | 44 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 171 | 290 | 13 | 116 | 291 | 13 | 190 | 291 | 13 | 98 | 171 | 13 | 147 | 72 | 13 | 171 | 207 | 0 | 190 | 290 | 0 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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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