
Surf Forecasts:
Navarro Rivermouth surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 2AM (local time) - 8ft (2.5m), 8s period, NW swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 2AM (local time) - 8ft (2.5m), 8s period, NW swell with 929 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 2AM (local time) - 8ft (2.5m), 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 Tuesday (Aug 11) at 2AM. The primary swell is predicted to be 2.5m and 8s period with a secondary swell of 2.3m and 8s. 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 Tuesday (Aug 11) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 16s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 11th Aug) | 8ft (2.5m) 8s |
| Best Surf | 2AM (Tue 11th Aug) | 8ft (2.5m) 8s |
| Most Powerful | 2AM (Tue 11th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what’s cooking at the Navarro Rivermouth over the next couple of weeks.
The short story? It’s a tough stretch ahead. This spot is a bit of a gamble anyway, being an inconsistent rivermouth wave that needs the right alignment, and for the next week, it just doesn’t come together. We're looking at a solid gap here, with nothing really worth paddling out for until the very end of the window. The water is sitting around 55°, which is a bit colder than normal for this time of year, so factor that in if you’re planning a session.
The week kicks off with some size, but it's not clean. From Monday the 10th of August through the weekend, we’ve got a mix of 8ft down to 3ft NW swell, but the wind is a persistent bummer. It’s mostly a light cross-onshore breeze, which combined with a short period (7 to 9 seconds), just makes for chop and poor conditions. The energy is there, with moderate readings up to 926, but it’s all messy. Don't get too excited about the bigger days on Wednesday the 12th—that 8ft swell with 1665 energy is accompanied by a cross-onshore wind of 9 mph, making it a choppy and poor experience, and that size is getting into expert-only territory on a river mouth.
Things drop off significantly after that. From Saturday the 16th through to nearly the end of the 16-day window, we’re in a dry spell. Swell heights are below 3ft, wind stays mediocre, and most of those days have a score of zero. It’s just flat and poor. There are a couple of long-period pulses on the 19th and 23rd (from the WNW and SW) with periods of 12 and 16 seconds, but the swell is too weak (under 3ft) to do anything with those long lines.
The only faint glimmer comes right at the tail end. On Monday the 25th of August, the swell starts to pick up again. We’re looking at 7ft of NW swell with a moderate combined energy of 806, but the wind is still cross-onshore at 9 mph. The forecast is marginal at best, and it’s still a week and a half out, so keep your fingers crossed that the wind cleans up. Until then, I’d save the petrol. This is a patch where forecasts can change, but right now, there’s nothing to rush for.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Wed morning, min 11°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Thu morning, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 9 | NW 8 | NW 8 | NW 9 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | W 10 | W 10 | W 9 |
Wave Graph | |||||||||||||||||||||
861 | 728 | 929 | 639 | 686 | 661 | 929 | 579 | 634 | 568 | 413 | 324 | 245 | 188 | 141 | 102 | 100 | 59 | 50 | 49 | 41 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | on | cross | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | on | glassy | cross-on | on | cross-off | cross-on | cross | glassy |
High Tide | 11:07AM1.45m | 9:36PM2.09m | 11:46AM1.53m | 10:31PM2.09m | 12:23PM1.60m | 11:23PM2.05m | 12:59PM1.66m | 00:14AM1.94m | 1:33PM1.71m | 1:05AM1.78m | 2:06PM1.74m | 1:57AM1.60m | 2:40PM1.75m | 2:55AM1.41m | |||||||
Low Tide | 3:37PM0.89m | 4:48AM-0.34m | 4:32PM0.79m | 5:31AM-0.32m | 5:25PM0.68m | 6:12AM-0.24m | 6:16PM0.58m | 6:51AM-0.11m | 7:08PM0.49m | 7:29AM0.06m | 7:59PM0.43m | 8:06AM0.26m | 8:54PM0.38m | ||||||||
6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | |
— | 8:16 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 11 | 14 | 14 | 12 | 15 | 15 | 13 | 14 | 14 | 12 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 14 | 13 |
Feels °C | 12 | 12 | 10 | 12 | 13 | 10 | 13 | 13 | 12 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 10 | 11 | 14 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 8 | NW 8 | NW 9 | NW 9 | SSW 18 | NW 8 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 14 |
861 | 728 | 754 | 639 | 686 | 209 | 736 | 579 | 634 | 568 | 413 | 324 | 245 | 188 | 141 | 563 | 499 | 627 | 612 | 596 | 515 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SW 14 | SSW 18 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 14 | SSW 18 | NW 7 | NW 7 | NW 7 | NW 7 | W 10 | W 9 |
165 | 156 | 102 | 101 | 116 | 52 | 207 | 179 | 173 | 203 | 251 | 245 | 196 | 138 | 360 | 102 | 100 | 59 | 29 | 49 | 41 | |
Swell 3 Height (m) Direction Period (s) | SW 20 | SW 20 | SW 20 | SSW 19 | SW 18 | S 12 | SSW 13 | SSW 13 | SSW 14 | S 11 | WNW 12 | SSW 21 | SSW 20 | SSW 19 | SSW 14 | WNW 10 | WNW 10 | WNW 10 | W 10 | NW 7 | NW 7 |
65 | 98 | 134 | 145 | 50 | 26 | 56 | 67 | 104 | 21 | 29 | 83 | 149 | 205 | 186 | 21 | 21 | 35 | 50 | 22 | 11 | |
Wind waves Height (m) Direction Period (s) | — | — | NW 8 | — | — | NW 8 | NW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 929 | — | — | 661 | 929 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 73 | 47 | 0 | 41 | 327 | 13 | 142 | 42 | 0 | 23 | 291 | 0 | 111 | 147 | 0 | 44 | 32 | 0 | 23 | 23 | 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.











