Surf Forecasts:
Navarro Rivermouth surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11PM (local time) - 8ft (2.4m), 8s period, NW swell with glassy winds.
- Most powerful swell: Wednesday 12 Aug, 8PM (local time) - 8ft (2.5m), 8s period, NW swell with 789 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 8AM (local time) - 7ft (2.2m), 8s 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 Wednesday (Aug 12) at 8AM. The primary swell is predicted to be 2.2m and 8s period. 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 2.5m 8s and forecast to arrive on Wednesday (Aug 12) 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 1.1m 16s period and expected on Sunday (Aug 16) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 12th Aug) | 7ft (2.2m) 8s |
| Best Surf | 11PM (Wed 12th Aug) | 8ft (2.4m) 8s |
| Most Powerful | 8PM (Wed 12th 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 get into it.
Well, to be honest, looking at the 16-day window for Navarro Rivermouth, we’ve got a pretty grim stretch ahead. The conditions are just not cooperating. There’s really no good surf on offer for the foreseeable future. The swell is inconsistent, and the wind is almost always working against us. With a setup like this, it’s not unusual to see a long blank run, and that’s exactly what we’ve got.
The first few days are a write-off. On Wednesday the 12th of August, we’ve got a 7ft to 8ft NW swell rolling in, but with a short period of 8 seconds and a cross-onshore wind, it’s just a messy, choppy mess. The combined energy is moderate at best (634-713), but the quality is poor. That’s a no-go.
Thursday the 13th sees the swell drop a bit, but the wind is still cross-onshore, and the surf is marginal at best. By Friday the 14th, the swell is down to 4ft, period is a weak 7 seconds, and the energy has dropped to 189. It’s all poor surf conditions.
This pattern of poor surf and onshore or cross-onshore winds just continues. The swell stays small, under 3ft through the weekend and into the next week. The energy is weak, often in the double digits or low triple digits. There’s a brief blip on the 19th of August with a 2ft, 13-second period groundswell from the WNW, giving some energy (164), but it’s still not enough to overcome the poor conditions.
The best looking swell comes much later, around the 24th of August, where we see a 7ft NW swell with a short 7 second period, but it’s still cross-onshore and the surf is marked as poor. The energy is moderate (552). Even then, it’s not a clean option.
In short, there’s nothing to get excited about. The wind is consistently wrong, the swell is either too small, too short period, or just messy. For a river mouth that’s inconsistent anyway, this is a long dry spell. It’s not looking good for paddle surfing at all. A setup like this with significant swell and poor quality, might be more interesting for the kite surfers, if anything.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Sat morning, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 | W 10 | W 9 | W 10 | W 9 | W 9 | WNW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 645 | 634 | 701 | 728 | 517 | 403 | 285 | 189 | 147 | 119 | 86 | 76 | 67 | 51 | 45 | 47 | 42 | 40 | 24 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | cross-off | on | on | glassy | on | cross-on | cross-off |
High Tide | 10:31PM2.09m | 12:23PM1.60m | 11:23PM2.05m | 12:59PM1.66m | 00:14AM1.94m | 1:33PM1.71m | 1:05AM1.78m | 2:06PM1.74m | 1:57AM1.60m | 2:40PM1.75m | 2:55AM1.41m | 3:15PM1.74m | 4:03AM1.25m | ||||||
Low Tide | 5:31AM-0.32m | 5:25PM0.68m | 6:12AM-0.24m | 6:16PM0.58m | 6:51AM-0.11m | 7:08PM0.49m | 7:29AM0.06m | 7:59PM0.43m | 8:06AM0.26m | 8:54PM0.38m | 8:44AM0.47m | 9:52PM0.35m | |||||||
 |  | |  | | | | | | | | |  | | | |  | | | |
 | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — |
 | 8:15 | — | 8:14 | — | — | 8:13 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 14 | 15 | 13 | 14 | 14 | 12 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 13 | 13 |
Feels °C | 11 | 12 | 13 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 12 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | NW 8 | SSW 16 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 15 | SSW 14 |
| kJ | 209 | 634 | 179 | 537 | 517 | 403 | 285 | 189 | 147 | 119 | 615 | 499 | 627 | 612 | 506 | 437 | 437 | 405 | 330 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SSW 18 | SSW 13 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 14 | SSW 18 | NW 7 | WNW 11 | NW 6 | NW 7 | NW 7 | W 10 | W 9 | W 9 | WNW 8 |
| kJ | 52 | 207 | 67 | 173 | 203 | 251 | 245 | 226 | 138 | 360 | 86 | 38 | 67 | 51 | 31 | 47 | 42 | 40 | 24 |
Swell 3 Height (m) Direction Period (s) | S 12 | SSW 13 | NW 18 | SSW 14 | S 11 | WNW 12 | SSW 20 | SSW 20 | SSW 19 | SW 14 | WNW 10 | S 9 | WNW 10 | W 10 | W 9 | NW 7 | NW 7 | NW 6 | SSW 18 |
| kJ | 26 | 56 | 12 | 104 | 21 | 29 | 82 | 149 | 205 | 214 | 35 | 15 | 34 | 49 | 45 | 23 | 11 | 6 | 62 |
Wind waves Height (m) Direction Period (s) | NW 8 | — | NW 8 | NW 8 | — | — | — | — | — | — | — | NW 6 | — | — | — | — | — | — | — |
| kJ | 645 | — | 701 | 728 | — | — | — | — | — | — | — | 76 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 142 | 147 | 13 | 41 | 291 | 0 | 73 | 95 | 0 | 73 | 293 | 0 | 44 | 95 | 0 | 97 | 95 | 13 |
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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