Surf Forecasts:
Navarro Rivermouth surf forecast from 24 Aug 2026:
- Best quality surf: Monday 24 Aug, 8AM (local time) - 2ft (0.6m), 18s period, SW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 8PM (local time) - 8ft (2.5m), 8s period, NW swell with 842 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 8AM (local time) - 2ft (0.6m), 18s 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 Monday (Aug 24) at 8AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 1.3m and 7s. 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 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 (Mon 24th Aug) | 2ft (0.6m) 18s |
| Best Surf | 8AM (Mon 24th Aug) | 2ft (0.6m) 18s |
| 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 again, letting you know what’s cookin’ at the Navarro Rivermouth for the next couple weeks.
Straight up, this is a tough stretch. The place is inconsistent, and most of the 16 days are a no-go. From Monday, August 24th, through the end of the month, it’s all poor surf conditions. Choppy water, cross-onshore winds, and the swell is just not cooperating. There’s a little bump in size around Friday, August 28th, with waves hitting 4 ft to 6 ft from the NW, but the wind is ugly and the period is short (7 to 8 seconds). The wave energy is moderate (around 290 to 336), but it’s all junk.
The first week of September is more of the same. Tuesday the 1st has a 2 ft NW swell with an 11-second period, but the wind is already cross-onshore and the energy is weak (199). Not worth it.
Then we get to Sunday, September 6th. The swell is predicted to be 12 ft from the NW with a 10-second period, and the wave energy is huge (2366 to 2223). The wind is a gentle cross-onshore, and the forecast says the wind and tide are good—but the swell is just too big for this spot. That’s expert-only territory, if you’re brave enough. The swell direction (NW) is what the break likes, but 12 ft is a monster for a river mouth.
The best window in the whole forecast is actually Monday, September 7th in the afternoon. The wind goes glassy, flat calm, with a 3 ft NW swell and a 9-second period. The wave energy is low (149), so it’s not going to be firing, but it’ll be clean. Water temp is about average for this time of year, so no surprises. Crowds are often a thing here, so don’t expect to have it to yourself.
Overall, it’s a lean run. The consistency is poor, and most days are a wash. If you’re really keen, the glassy session on September 7th is your best bet, but keep the expectations low.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Tue morning, min 12°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Thu morning, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | NW 6 | NW 8 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 318 | 255 | 192 | 232 | 326 | 214 | 206 | 203 | 201 | 181 | 134 | 171 | 190 | 227 | 290 | 389 | 336 | 694 | 472 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | cross | cross-on | cross-on | glassy | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 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 | 12:55PM1.65m | 00:44AM1.65m | ||||||
Low Tide | 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 | 6:23AM0.11m | 6:41PM0.47m | |||||||
 |  | | | |  | | | | | | |  | | | | | | | |
 | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 15 | 15 | 14 | 16 | 15 | 13 | 15 | 16 | 14 | 15 | 15 | 13 | 14 | 15 | 13 | 14 | 15 | 13 |
Feels °C | 13 | 14 | 14 | 14 | 14 | 12 | 11 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 7 | NW 7 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 6 | SSE 13 | SSE 12 | SW 14 | SSW 16 | SSW 16 | SSW 18 | NW 7 | SSW 17 | SSW 16 |
| kJ | 318 | 179 | 137 | 79 | 326 | 214 | 206 | 203 | 201 | 32 | 133 | 117 | 167 | 347 | 177 | 422 | 336 | 629 | 582 |
Swell 2 Height (m) Direction Period (s) | S 16 | SW 18 | S 14 | SW 17 | NW 7 | S 13 | S 13 | W 13 | W 7 | SW 15 | SW 15 | SW 15 | S 12 | S 11 | SSW 19 | SSE 10 | SSW 18 | SSE 10 | S 10 |
| kJ | 122 | 255 | 153 | 232 | 43 | 126 | 123 | 85 | 28 | 181 | 134 | 171 | 69 | 62 | 295 | 19 | 887 | 18 | 17 |
Swell 3 Height (m) Direction Period (s) | SW 18 | S 14 | SW 18 | S 14 | S 13 | W 16 | W 14 | S 12 | W 12 | W 12 | W 11 | W 12 | W 10 | SW 13 | S 11 | S 11 | SSE 10 | — | W 12 |
| kJ | 199 | 153 | 192 | 144 | 126 | 75 | 102 | 75 | 47 | 71 | 38 | 65 | 33 | 62 | 61 | 10 | 33 | — | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NW 6 | NW 5 | NW 5 | NW 5 | NW 5 | WNW 5 | NW 6 | NW 6 | NW 8 | NW 7 | NW 7 | — | NW 8 | NW 7 |
| kJ | — | — | — | — | — | 23 | 43 | 31 | 58 | 43 | 45 | 124 | 190 | 227 | 290 | 389 | — | 694 | 472 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 190 | 291 | 13 | 116 | 190 | 0 | 116 | 290 | 13 | 190 | 291 | 13 | 190 | 291 | 13 | 190 | 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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