Surf Forecasts:
Navarro Rivermouth surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 2AM (local time) - 3.5ft (1.1m), 7s period, NW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 8PM (local time) - 8ft (2.4m), 8s period, NW swell with 765 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 2AM (local time) - 3.5ft (1.1m), 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 Saturday (Aug 15) at 2AM. The primary swell is predicted to be 1.1m and 7s 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 2.4m 8s and forecast to arrive on Friday (Aug 21) 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+) | 2AM (Sat 15th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 2AM (Sat 15th Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 8PM (Fri 21st Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what we've got coming down the pike at Navarro Rivermouth. Let's get into it.
Right off the bat, I gotta be straight with you – the water is chilly. We're talking 54°F and that's a full 4°F colder than usual for this time of year. You'll want a good hood and some booties for sure.
Now, for the surf. Look, this is a tough stretch. The forecast is pretty bleak for the next week and a half. The wind is almost always coming from the NW or W, giving us a persistent cross-onshore breeze that's just messing up the surface. It's frustrating because there's some swell energy in the water, but it's all getting chopped up.
Friday the 14th kicks things off with some weak, short-period NW swell around 4ft, wind is on it from the W at 6 mph, and the energy is a low 143. It's just poor surf conditions. The pattern stays the same through Saturday and Sunday, with swell dropping to about 2ft to 3ft and energy dipping below 100. The wind is either onshore or cross-onshore, and the wave comment is consistently "poor surf conditions."
We get a bit of a bump in swell energy on Monday the 17th, picking up to 4ft and 4ft with energy in the 156 to 167 range, but the wind is still cross-onshore from the NW at 9 to 12 mph. The waves are choppy and messy. Tuesday the 18th sees the swell building to 6ft in the morning (energy 475), but it's still cross-onshore and choppy. The middle of the week, Wednesday the 19th, has the biggest raw swell of the period at 7ft in the morning, with a solid energy reading of 1121. But again, that NW cross-onshore wind at 9 mph is killing it. The period is only 8 seconds, so it's short-period, wind-affected stuff. Not the kind of swell that's going to offer any quality.
By Thursday the 20th, the swell drops back to 3ft, though the period stretches out to 12 seconds from the WNW. That's a longer period, but the wind is still up at 12 mph from the NW, giving us a choppy, moderate cross-onshore. We then have a long stretch of days from Friday the 21st all the way through the end of the month where the conditions are just a write-off.
There is a small glimmer on Sunday the 23rd. The morning shows a 6ft NW swell, period of 8 seconds, and the wind is finally onshore from the W at only 6 mph. The wave comment shifts to "marginal surf forecast." The afternoon is similar, with a 7ft swell and light cross-onshore. It's the only time in the entire 16-day window that we get any kind of "marginal" rating, but it's still not great. The rest of the period is a repeat of poor surf, cross-onshore winds, and choppy conditions.
For a spot that's known to be inconsistent, this is a particularly tough run. The swell direction is mostly from the NW, which is the optimum direction for the break, but the wind is just constantly working against it. With the persistent cross-onshore wind and the poor surf quality, the setup actually looks more interesting for kite surfing than paddle surfing for most of this period.
So, in short, there are no standout days here. The best you can hope for is a marginal session on the morning of the 23rd, but even that's a big maybe. Forecasts can change, but right now, it's a long wait.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Tue morning, min 11°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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) | NW 7 | NW 7 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 7 | WNW 12 | NW 7 | NW 7 |
Wave Graph | ||||||||||||||||||||
109 | 116 | 68 | 62 | 93 | 42 | 53 | 143 | 128 | 159 | 247 | 176 | 277 | 410 | 446 | 423 | 381 | 256 | 299 | 325 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 1:05AM1.78m | 2:06PM1.74m | 1:57AM1.60m | 2:40PM1.75m | 2:55AM1.41m | 3:15PM1.74m | 4:03AM1.25m | 3:52PM1.71m | 5:32AM1.14m | 4:36PM1.68m | 7:21AM1.13m | 5:28PM1.65m | ||||||||
Low Tide | 7:08PM0.49m | 7:29AM0.06m | 7:59PM0.43m | 8:06AM0.26m | 8:54PM0.38m | 8:44AM0.47m | 9:52PM0.35m | 9:27AM0.67m | 10:55PM0.32m | 10:17AM0.85m | 00:03AM0.29m | 11:25AM0.99m | 1:12AM0.24m | |||||||
— | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | |
8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 12 | 14 | 13 | 11 | 14 | 14 | 13 | 14 | 14 | 12 | 14 | 13 | 12 |
Feels °C | 12 | 12 | 14 | 12 | 13 | 13 | 13 | 11 | 12 | 10 | 8 | 12 | 11 | 12 | 11 | 10 | 10 | 11 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 7 | NW 7 | SSW 17 | SSW 16 | NW 6 | SSW 16 | SSW 16 | NW 7 | NW 7 | SSW 15 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | WNW 12 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 |
109 | 116 | 615 | 499 | 93 | 519 | 463 | 143 | 128 | 334 | 268 | 239 | 357 | 291 | 172 | 231 | 265 | 256 | 214 | 164 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 18 | NW 6 | WNW 11 | SSW 16 | NW 6 | NW 6 | SSW 15 | SSW 15 | W 9 | SSW 18 | WNW 8 | WNW 15 | WNW 13 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
138 | 360 | 68 | 37 | 627 | 42 | 53 | 405 | 334 | 39 | 62 | 48 | 84 | 102 | 242 | 309 | 252 | 223 | 226 | 183 | |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SW 14 | WNW 10 | SSE 12 | WNW 10 | WNW 10 | WNW 9 | W 8 | W 9 | WNW 12 | WNW 13 | SSW 18 | NW 11 | SSW 13 | SW 20 | SW 21 | W 21 | SW 19 | SW 19 | WNW 14 |
205 | 214 | 35 | 29 | 34 | 32 | 29 | 35 | 39 | 14 | 17 | 62 | 5 | 65 | 16 | 18 | 9 | 55 | 58 | 21 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 6 | — | — | — | — | — | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 7 | NW 6 | NW 7 | NW 7 |
— | — | — | 62 | — | — | — | — | — | 159 | 247 | 176 | 277 | 410 | 446 | 423 | 381 | 183 | 299 | 325 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 147 | 0 | 190 | 95 | 0 | 73 | 95 | 0 | 190 | 291 | 13 | 116 | 42 | 13 | 116 | 52 | 13 | 171 | 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.











