Surf Forecasts:
Navarro Rivermouth surf forecast from 23 Aug 2026:
- Best quality surf: Friday 28 Aug, 11PM (local time) - 8ft (2.4m), 8s period, NW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 5PM (local time) - 10ft (3.0m), 8s period, NW swell with 1,166 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8AM (local time) - 5ft (1.6m), 7s 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 (Aug 23) at 8AM. The primary swell is predicted to be 1.6m and 7s 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 Saturday (Aug 29) 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 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 (Sun 23rd Aug) | 5ft (1.6m) 7s |
| Best Surf | 11PM (Fri 28th Aug) | 8ft (2.4m) 8s |
| Most Powerful | 5PM (Sat 29th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Hey there, grab your board, but maybe don't get your hopes up too high just yet. The outlook for the next couple of weeks is pretty grim. The only spot showing any potential at all is Navarro Rivermouth, a river mouth break that's fairly exposed to the swell but inconsistent and often crowded. It's a beginner-friendly spot, but the conditions are just not cooperating.
The water temp is sitting right around average for this time of year, so nothing to worry about there.
The first proper surfable day I can see is on Saturday, September 5th in the afternoon. The wind will be light and cross-onshore from the WNW, and we're looking at a solid 12 ft swell from the NW, with a period of 9 seconds. The combined energy is a whopping 1646, which is strong. Here's the catch though – it's predicted to be too big for this break. The wind and tide are favorable, but that's a lot of water moving. Given the size, this is really only for the experts, and even then, it's a big ask.
The next morning, Sunday, September 6th, hangs in there with an 8 ft NW swell, also with a 9 second period. The wind is light and cross-onshore from the WNW, and the combined energy is a strong 1102. It's still big, but the conditions are a bit more manageable. It's still a marginal call, but if you're an experienced surfer it's your best bet across the whole period.
Honestly, for the rest of the 16-day window, it's a write-off. The wind is almost always cross-onshore, the surf quality is consistently poor, and the wave heights are either too small or too messy. The swell is often short-period, which means weak, choppy waves. For a spot that's already inconsistent, this is a pretty blank run.
Rusty
Short Range ForecastMostly dry. Very mild (max 16°C on Sun morning, min 12°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 7 | SW 19 | NW 8 | NW 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 261 | 277 | 345 | 292 | 255 | 192 | 232 | 326 | 214 | 161 | 203 | 201 | 181 | 147 | 219 | 386 | 435 | 731 | 617 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | glassy | on | on | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 10:24AM1.34m | 8:22PM1.72m | 10:55AM1.38m | 9:11PM1.77m | 11:21AM1.42m | 9:55PM1.81m | 11:45AM1.47m | 10:37PM1.82m | 12:08PM1.52m | 11:18PM1.80m | 12:31PM1.58m | 00:00AM1.74m | |||||||
Low Tide | 3:04AM0.11m | 2:49PM1.01m | 3:47AM0.05m | 3:34PM0.95m | 4:23AM0.01m | 4:13PM0.87m | 4:55AM-0.01m | 4:50PM0.79m | 5:25AM-0.01m | 5:25PM0.69m | 5:54AM0.03m | 6:02PM0.59m | |||||||
 |  | |  | | | | | | | | |  | | | | | | | |
 | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — |
 | 8:00 | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 16 | 13 | 15 | 15 | 14 | 15 | 15 | 13 | 15 | 16 | 14 | 15 | 15 | 13 | 14 | 15 | 13 |
Feels °C | 13 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 13 | 11 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 19 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 7 | SSE 13 | SSE 12 | SW 14 | SSW 17 | SSW 19 | SSW 19 |
| kJ | 59 | 231 | 345 | 292 | 205 | 160 | 82 | 326 | 214 | 161 | 203 | 201 | 37 | 135 | 117 | 167 | 351 | 465 | 441 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 12 | SW 18 | S 16 | SW 18 | S 14 | SW 17 | NW 6 | S 13 | S 13 | W 13 | W 7 | SW 15 | SW 15 | SW 15 | S 12 | S 11 | SW 13 | S 10 |
| kJ | 82 | 29 | 117 | 122 | 255 | 153 | 232 | 24 | 126 | 123 | 85 | 26 | 181 | 134 | 134 | 71 | 63 | 87 | 18 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 15 | SSW 16 | SW 18 | S 14 | SW 18 | S 14 | S 13 | W 16 | WNW 8 | WNW 8 | W 12 | S 14 | W 11 | W 11 | W 10 | SW 13 | SSE 11 | W 13 |
| kJ | 40 | 77 | 83 | 199 | 153 | 192 | 144 | 126 | 75 | 27 | 19 | 47 | 96 | 38 | 63 | 33 | 62 | 40 | 12 |
Wind waves Height (m) Direction Period (s) | NW 7 | NW 7 | — | — | — | — | — | — | NW 6 | NW 5 | NW 5 | NW 6 | NW 6 | NW 6 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 |
| kJ | 261 | 277 | — | — | — | — | — | — | 23 | 35 | 38 | 89 | 80 | 147 | 219 | 386 | 435 | 731 | 617 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 98 | 36 | 0 | 73 | 116 | 0 | 116 | 290 | 0 | 116 | 290 | 0 | 171 | 291 | 13 | 116 | 291 | 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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