
Surf Forecasts:
Navarro Rivermouth surf forecast from 31 Jul 2026:
- Best quality surf: Sunday 2 Aug, 8PM (local time) - 13ft (4.0m), 9s period, NW swell with cross-shore winds.
- Most powerful swell: Sunday 2 Aug, 8PM (local time) - 13ft (4.0m), 9s period, NW swell with 2,805 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 5AM (local time) - 6ft (1.8m), 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 Friday (Jul 31) at 5AM. The primary swell is predicted to be 1.8m 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 4.0m 9s and forecast to arrive on Sunday (Aug 02) 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 0.9m 14s period and expected on Friday (Jul 31) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 31st Jul) | 6ft (1.8m) 7s |
| Best Surf | 8PM (Sun 2nd Aug) | 13ft (4.0m) 9s |
| Most Powerful | 8PM (Sun 2nd Aug) | 13ft (4.0m) 9s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve got a tough one for you. Let’s get right into it.
Right off the bat, I gotta be straight with you – the outlook for the next 16 days is a bit of a heartbreaker, especially if you’re looking for a clean, fun wave. The only spot on the radar here is Navarro Rivermouth, and it’s an inconsistent river mouth that’s fairly exposed to that NW swell. The water’s sitting at 57°F, which is right about average for this time of year, so no surprises there.
We kick things off on Thursday, July 30th, but it’s not looking good. We’ve got a 6 ft NW swell with a short, weak period of 7 seconds and a moderate combined energy of (375). The wind is a cross-on from the NW at 9 mph, making for a fairly choppy mess. This is a no-go for a paddle. The afternoon only gets worse with a 8 ft swell and the wind picking up to 12 mph, pushing the energy to (585) but the surf quality is still poor.
Friday, July 31st through Saturday, August 1st is a write-off. The swell drops a bit on Friday morning to 5 ft but the wind stays cross-on, and the energy is only (233). Saturday afternoon sees the swell jump to 10 ft and the wind hitting 19 mph, with energy climbing to (1016). That’s a lot of messy, lumpy water. Honestly, with that much wind and poor quality, this setup looks more interesting for kite surfing than paddle surfing.
Sunday, August 2nd is the biggest day of the run, with an 12 ft swell and a monstrous energy reading of (2199). The period has stretched to 9 seconds, which is a bit better, but the wind is still a moderate cross-on from the NNW at 16 mph. This is way too big for beginners, and honestly, with the chop, it’s only for the experts or the kamikaze crew.
The best chance in this whole window – and I’m using that term loosely – comes on Monday, August 3rd. The morning swell is a solid 10 ft with a 10-second period, giving a very strong energy of (1750). The wind is a lighter cross-on from the NW at 9 mph, so it’s still a bit lumpy. The real standout is the Monday afternoon, where the swell hits 12 ft with a 10-second period and a massive energy of (1956). The wind is the same gentle breeze, and the forecast actually says the wind and tide are favorable, but the swell is predicted to be too big for this break. It’s a tease, really. It’s the only time the score gets a look-in, but it’s borderline. If you’re an expert and you don’t mind a river mouth that’s rarely breaking well, this is your one shot.
After that, it’s a long, slow decline. Tuesday, August 4th has an 8 ft swell in the morning with a light cross-on, but the energy is still (1260) and the quality is marginal. The afternoon sees a switch to an onshore wind from the W at 3 mph with a 7 ft swell, but it’s still not great.
From Wednesday, August 5th all the way through to Friday, August 14th, the story is the same: poor to marginal conditions. The swell drops from 6 ft down to 4 ft, the period stays short (8-10 seconds), and the wind is almost always a cross-on or onshore. The energy drops from a moderate (622) all the way down to a weak (235). There are a few mornings with a light onshore breeze that might offer a glimmer, but nothing consistent enough to chase.
So, to wrap it up: the only true standout, and it’s a big *if*, is the afternoon of Monday, August 3rd. That’s the one to circle on the calendar if you’re an expert and willing to deal with a lumpy, oversized river mouth. For the rest of us, it’s a long stretch of blank days with no real recommendations. It’s one of those runs where the forecast needs to change, or we just wait for the next NW groundswell.
Stay salty, and keep your eyes on the horizon.
- Rusty
Short Range ForecastMostly dry. Very mild (max 16°C on Sat morning, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 11°C on Sun night). Winds decreasing (fresh winds from the NNW on Sun afternoon, calm by Tue night). | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 |
Wave Graph | ||||||||||||||||||||
585 | 457 | 233 | 298 | 321 | 357 | 1028 | 1190 | 1507 | 2559 | 1957 | 1790 | 2321 | 1913 | 1026 | 798 | 699 | 619 | 606 | 564 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 00:10AM1.79m | 1:53PM1.51m | 00:50AM1.70m | 2:19PM1.56m | 1:34AM1.58m | 2:47PM1.63m | 2:25AM1.44m | 3:19PM1.69m | 3:27AM1.28m | 3:55PM1.75m | 4:48AM1.14m | 4:38PM1.81m | ||||||||
Low Tide | 6:23PM0.85m | 7:00AM-0.09m | 7:03PM0.78m | 7:30AM-0.01m | 7:47PM0.70m | 8:02AM0.12m | 8:37PM0.60m | 8:36AM0.27m | 9:34PM0.50m | 9:14AM0.46m | 10:38PM0.37m | 9:58AM0.65m | 11:48PM0.24m | |||||||
— | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | |
8:29 | — | — | 8:28 | — | — | 8:27 | — | — | 8:25 | — | — | 8:24 | — | — | 8:22 | — | — | 8:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 15 | 14 | 16 | 16 | 15 | 15 | 16 | 15 | 16 | 17 | 15 | 16 | 16 | 13 | 15 | 15 | 13 |
Feels °C | 10 | 12 | 12 | 12 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 13 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SW 14 | SSW 14 | SSW 14 | SSW 14 | S 13 | SSW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 |
527 | 214 | 301 | 236 | 140 | 126 | 136 | 99 | 92 | 70 | 44 | 44 | 43 | 1527 | 1026 | 798 | 699 | 619 | 606 | 564 | |
Swell 2 Height (m) Direction Period (s) | SSE 13 | S 15 | S 14 | SSE 13 | S 12 | SSW 14 | S 13 | S 13 | S 12 | S 12 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
35 | 157 | 107 | 141 | 78 | 134 | 78 | 32 | 45 | 45 | 49 | 43 | 41 | 40 | 85 | 78 | 34 | 73 | 71 | 97 | |
Swell 3 Height (m) Direction Period (s) | SSE 17 | SSE 16 | — | — | S 14 | SW 20 | SW 19 | S 11 | SW 18 | SW 18 | S 13 | S 12 | S 12 | SW 12 | SSW 12 | SSW 12 | S 14 | SSW 11 | SSW 11 | S 13 |
29 | 83 | — | — | 92 | 15 | 15 | 22 | 13 | 49 | 29 | 26 | 11 | 38 | 14 | 28 | 34 | 12 | 12 | 30 | |
Wind waves Height (m) Direction Period (s) | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | — | — | — | — | — | — |
585 | 457 | 233 | 298 | 321 | 357 | 1028 | 1190 | 1507 | 2559 | 1957 | 1790 | 2321 | 1913 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 291 | 13 | 171 | 291 | 13 | 171 | 291 | 72 | 171 | 291 | 84 | 190 | 171 | 13 | 23 | 20 | 23 | 23 | 13 | 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.











