Surf Forecasts:
Navarro Rivermouth surf forecast from 6 Aug 2026:
- Best quality surf: Monday 10 Aug, 5AM (local time) - 10ft (3.0m), 9s period, NW swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 8PM (local time) - 10ft (3.0m), 9s period, NW swell with 1,664 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 11PM (local time) - 2.5ft (0.8m), 9s period with WNW 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 Wednesday (Aug 05) at 11PM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.8m and 9s. Another secondary swell of 0.8m and 8s is also forecast. 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 3.0m 9s and forecast to arrive on Tuesday (Aug 11) 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 0.8m 16s period and expected on Sunday (Aug 09) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 5th Aug) | 2.5ft (0.8m) 9s |
| Best Surf | 5AM (Mon 10th Aug) | 10ft (3.0m) 9s |
| Most Powerful | 8PM (Tue 11th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Navarro Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this 16-day window for Navarro Rivermouth is a bit of a heartbreaker. The pattern is pretty clear: a whole lot of poor surf conditions with constant cross-onshore winds mushing things up. Water is sitting at 52°, which is a full 5° colder than usual for this time of year – that’s a very unusual chill, so you’ll need a thick wetsuit if you’re even thinking about it.
The first week is a write-off. From Wednesday, 5 August right through to Sunday, 9 August, the swell is building but the wind is a mess. You’ve got a bumpy 4ft NW swell at 8 seconds on the Wednesday with a weak energy reading of 297, and it just gets bigger and more onshore. By Saturday and Sunday, the swell hits 8ft to 10ft NW, but with cross-on winds and a combined energy of 777 to 1292, it’s too big for beginners and pulsing with no shape. The wave comment from the forecast is “poor surf conditions” – not a single standout anywhere near here.
We do see a slight shift starting Monday, 10 August. The wind swings onshore but much lighter, and the swell stays solid at 8ft to 10ft NW with a 9-second period. The energy is high (1120 to 1495), and the comments shift to “marginal” rather than poor. The best chance for a session might be Monday afternoon or Tuesday, 11 August, with light onshore winds and a consistent 10ft NW swell. But it’s still a river-mouth setup, and with that size and period, it’s going to be a wild, shifty beast – only for experts. The break is also inconsistent, and crowds are often an issue here, so don’t expect a peaceful paddle.
The second week fades. By Thursday, 13 August, the swell drops to 6ft NW, and the wind is cross-on again. After that, from Friday, 14 August through to the end of the window on 20 August, we’re back to poor surf and small, weak swell. The energy drops to triple digits, and the swell direction wobbles but never really locks in. There are a few marginal moments around 19 August with a 8ft NW swell, but the period is short (7 seconds) and the wind is cross-on. Nothing to get excited about.
Honestly, if you’re desperate, the best on offer is the Monday-Tuesday window (10-11 August) with the bigger groundswell and light winds, but only if you’re an expert and you don’t mind the crowds. For everyone else, maybe keep the board in the car and watch the forecast for a change. This is a blank run.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°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 morning, min 12°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 | WNW 9 | SW 13 | SW 13 | NW 8 | NW 6 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 138 | 93 | 88 | 84 | 67 | 79 | 128 | 336 | 320 | 746 | 984 | 987 | 1274 | 1312 | 1055 | 1242 | 1255 | 1312 | 1445 | 1385 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | on | on | cross | on | cross-on | glassy |
High Tide | 4:38PM1.81m | 6:32AM1.09m | 5:30PM1.86m | 8:16AM1.14m | 6:29PM1.91m | 9:31AM1.24m | 7:33PM1.98m | 10:24AM1.35m | 8:36PM2.04m | 11:07AM1.45m | 9:36PM2.09m | 11:46AM1.53m | 10:31PM2.09m | |||||||
Low Tide | 11:48PM0.24m | 10:54AM0.82m | 1:00AM0.09m | 12:07PM0.95m | 2:07AM-0.06m | 1:25PM1.00m | 3:07AM-0.20m | 2:35PM0.97m | 4:00AM-0.29m | 3:37PM0.89m | 4:48AM-0.34m | 4:32PM0.79m | ||||||||
 |  |  | | | | |  | | | | | | | | | | | | | |
 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | 8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 15 | 15 | 13 | 16 | 15 | 13 | 17 | 16 | 15 | 16 | 16 | 14 | 17 | 16 | 13 | 15 | 15 | 13 |
Feels °C | 11 | 12 | 13 | 13 | 12 | 14 | 13 | 12 | 14 | 13 | 13 | 13 | 13 | 12 | 16 | 14 | 12 | 14 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 8 | WNW 9 | NNW 8 | NNW 8 | NW 8 | NW 6 | SSW 19 | SSW 13 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | NW 9 | NW 9 | SSW 13 | SSW 13 | SSW 14 | SSW 18 |
| kJ | 138 | 92 | 50 | 40 | 67 | 79 | 203 | 111 | 240 | 240 | 226 | 263 | 191 | 167 | 1055 | 1242 | 102 | 101 | 116 | 209 |
Swell 2 Height (m) Direction Period (s) | NW 8 | NNW 8 | WNW 8 | WNW 8 | SSW 13 | SSW 18 | SW 13 | SW 16 | SW 12 | SW 12 | SSW 12 | SW 12 | SSW 12 | SSW 11 | SSW 14 | SSW 14 | SW 20 | SW 19 | SW 18 | SW 14 |
| kJ | 58 | 84 | 59 | 39 | 113 | 126 | 79 | 130 | 37 | 35 | 56 | 37 | 14 | 25 | 165 | 156 | 134 | 94 | 50 | 53 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 18 | SW 13 | S 11 | SSW 19 | NW 12 | W 13 | SW 23 | SW 23 | SW 21 | SW 21 | SW 20 | SW 20 | SSW 16 | S 12 | SSW 19 | S 12 |
| kJ | 99 | 93 | 88 | 84 | 81 | 57 | 10 | 74 | 36 | 31 | 21 | 21 | 18 | 72 | 65 | 98 | 25 | 3 | 72 | 26 |
Wind waves Height (m) Direction Period (s) | SSW 3 | — | — | — | — | — | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | — | — | NW 9 | NW 9 | NW 9 | NW 9 |
| kJ | 2 | — | — | — | — | — | 128 | 336 | 320 | 746 | 984 | 987 | 1274 | 1312 | — | — | 1255 | 1312 | 1445 | 1385 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 44 | 0 | 95 | 147 | 13 | 290 | 72 | 13 | 290 | 636 | 42 | 116 | 52 | 13 | 73 | 32 | 13 | 73 | 52 | 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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