Surf Forecasts:
Navarro Rivermouth surf forecast from 30 Aug 2026:
- Best quality surf: Sunday 30 Aug, 11PM (local time) - 8ft (2.4m), 8s period, NW swell with glassy winds.
- Most powerful swell: Sunday 30 Aug, 11PM (local time) - 8ft (2.4m), 8s period, NW swell with 725 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 11PM (local time) - 8ft (2.4m), 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 Sunday (Aug 30) at 11PM. The primary swell is predicted to be 2.4m 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 2.4m 8s and forecast to arrive on Sunday (Aug 30) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 16s period and expected on Sunday (Aug 30) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 30th Aug) | 8ft (2.4m) 8s |
| Best Surf | 11PM (Sun 30th Aug) | 8ft (2.4m) 8s |
| Most Powerful | 11PM (Sun 30th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s talk about Navarro Rivermouth.
We’ve got a real mixed bag over the next 16 days. This river mouth setup is inconsistent at the best of times, and we’re starting off with a lot of meh. The water’s sitting at 55°F, a solid 3.6°F colder than usual for this time of year – so you’ll want a thicker wetsuit.
Sunday August 30th and Monday August 31st are pretty average: small NW swell around 4.6–6.9 ft, but with cross-onshore winds and short 8-second periods. Not much to write home about. Tuesday and Wednesday drop off further – tiny leftovers with poor conditions. Crowds are often here, so even the marginal days might feel busy for what they are.
Now, the first real standout pops up on Thursday September 3rd. That morning we get a clean, glassy-ish window with a 3 ft SW swell riding on a juicy 19-second interval. That’s proper long-period groundswell, and for a river mouth that can really line up. Combined energy is 822 – moderate but with that period it’ll have punch for its size. Light offshore/cross-off wind means clean faces. This is the kind of session where a beginner can have fun without getting mowed, and the consistency might actually pay off. Grab it if you can.
After that, it’s back to marginal slop for a week. Swell hangs around 1.6–5.9 ft but winds stay onshore or cross-shore
Short Range ForecastMostly dry. Very mild (max 16°C on Tue morning, min 11°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu morning. Very mild (max 18°C on Wed morning, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 11 | NW 10 | SW 18 | SW 18 | SW 16 | SW 16 | SW 19 | WNW 10 | WNW 10 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | WNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 444 | 537 | 684 | 221 | 152 | 57 | 71 | 167 | 154 | 246 | 130 | 216 | 518 | 615 | 565 | 538 | 487 | 420 | 315 | 235 | 145 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross-off | cross-on | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | off | cross | cross-on | glassy |
High Tide | 1:22PM1.71m | 1:34AM1.53m | 1:52PM1.76m | 2:31AM1.40m | 2:26PM1.80m | 3:40AM1.27m | 3:08PM1.82m | 5:08AM1.18m | 4:00PM1.83m | 6:50AM1.19m | 5:03PM1.83m | 8:14AM1.27m | 6:14PM1.84m | ||||||||
Low Tide | 7:24PM0.37m | 7:26AM0.37m | 8:12PM0.27m | 8:02AM0.55m | 9:07PM0.20m | 8:43AM0.72m | 10:10PM0.14m | 9:34AM0.88m | 11:23PM0.09m | 10:47AM1.00m | 00:40AM0.02m | 12:15PM1.04m | 1:50AM-0.05m | ||||||||
 | |  | |  |  | |  | | | | |  | |  | | | | | | | |
 | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:46 | — | — |
 | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — |
Temp °C | 14 | 14 | 12 | 14 | 15 | 15 | 16 | 16 | 15 | 18 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 17 | 15 | 14 |
Feels °C | 12 | 11 | 10 | 13 | 14 | 14 | 15 | 14 | 14 | 15 | 12 | 15 | 15 | 15 | 16 | 15 | 14 | 14 | 14 | 12 | 15 |
Swell 1 Height (m) Direction Period (s) | NW 8 | SSW 15 | NW 8 | NW 8 | NW 7 | NW 7 | SSW 13 | NW 10 | NW 9 | NW 9 | NW 9 | WNW 8 | W 9 | WNW 10 | WNW 10 | NW 11 | NW 11 | NW 10 | NW 10 | SSW 16 | SSW 15 |
| kJ | 354 | 512 | 537 | 221 | 152 | 57 | 198 | 167 | 147 | 99 | 81 | 90 | 304 | 615 | 565 | 538 | 487 | 420 | 315 | 688 | 653 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | S 9 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | NW 7 | SSW 13 | SSW 13 | SW 18 | SSW 12 | SW 6 | SW 19 | S 12 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | NW 10 | WNW 9 |
| kJ | 724 | 6 | 405 | 394 | 321 | 204 | 38 | 198 | 151 | 246 | 87 | 36 | 518 | 187 | 553 | 651 | 615 | 651 | 620 | 235 | 145 |
Swell 3 Height (m) Direction Period (s) | S 9 | — | S 9 | W 10 | W 10 | SSE 14 | NW 11 | S 12 | SW 18 | SSW 12 | SW 16 | SW 16 | S 13 | SSW 20 | S 12 | S 11 | SSW 13 | SSW 12 | SSW 11 | S 10 | S 10 |
| kJ | 7 | — | 2 | 17 | 17 | 41 | 71 | 73 | 154 | 89 | 130 | 216 | 83 | 253 | 177 | 166 | 127 | 104 | 126 | 49 | 47 |
Wind waves Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | — | — | — | — | — | — | SSE 11 | S 4 | — | SSE 3 | — | — | — | — | — | — | — | — |
| kJ | 444 | 537 | 684 | — | — | — | — | — | — | 167 | 31 | — | 4 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 147 | 291 | 0 | 222 | 97 | 13 | 23 | 97 | 0 | 44 | 23 | 0 | 0 | 23 | 23 | 147 | 222 | 0 | 41 | 23 | 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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