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Gualala Rivermouth Surf Forecast
/ CAL – Mendocino County (14 breaks) / California (404 breaks) /
Surf Forecasts:
Gualala Rivermouth surfForecast / CAL – Mendocino County / USA
12 Day Weather and Surf, issued 10 am Saturday 06 Sep 2025 PDT
Best Forecast Surf Conditions for Gualala Rivermouth this week:
The surf forecast for Gualala Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 07) at 2AM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.6m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Gualala Rivermouth in the next 12 days are 1.4m 13s and forecast to arrive on Saturday (Sep 13) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 7th Sep) | 2ft (0.6m) 12s |
| Best Surf | 2AM (Sun 7th Sep) | 2ft (0.6m) 12s |
| Most Powerful | 11AM (Sat 13th Sep) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Gualala Rivermouth over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 19°C on Sun morning, min 14°C on Sat morning). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Tue morning, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 13 | 14 | 12 | 12 | 13 | 13 | 19 | 19 | 18 | 16 | 16 | 15 | 15 | 15 | 8 | 13 | 13 | 16 | 15 | 15 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 329 | 359 | 267 | 296 | 333 | 326 | 311 | 347 | 483 | 443 | 468 | 583 | 543 | 574 | 827 | 523 | 470 | 490 | 439 | 501 | 752 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- off | cross- on | on | glass | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross |
High Tide / height (m) | 11:20AM 1.90 | 10:33PM 2.25 | 11:45AM 2.02 | 11:23PM 2.21 | 12:13PM 2.14 | 12:15AM 2.12 | 12:44PM 2.24 | 1:11AM 1.99 | 1:18PM 2.31 | 2:13AM 1.84 | 1:57PM 2.34 | 3:24AM 1.70 | 2:42PM 2.33 | 4:50AM 1.60 | |||||||
Low Tide / height (m) | 4:37PM 1.04 | 5:19AM 0.32 | 5:25PM 0.87 | 5:52AM 0.41 | 6:14PM 0.69 | 6:26AM 0.56 | 7:05PM 0.54 | 7:01AM 0.73 | 8:00PM 0.44 | 7:38AM 0.92 | 8:59PM 0.39 | 8:20AM 1.11 | 10:06PM 0.37 | ||||||||
Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||
| Sunrise | 6:47 | - | - | 6:48 | - | - | 6:48 | - | - | 6:50 | - | - | 6:50 | - | - | 6:52 | - | - | 6:52 | - | - |
| Sunset | - | 7:37 | - | - | 7:36 | - | - | 7:34 | - | - | 7:31 | - | - | 7:30 | - | - | 7:29 | - | - | 7:28 | - |
 |  |  | | | | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 18 | 16 | 19 | 19 | 17 | 19 | 19 | 17 | 18 | 18 | 16 | 17 | 17 | 14 | 16 | 17 | 15 | 17 | 18 | 14 |
| Feels °C (?) | 17 | 18 | 16 | 18 | 18 | 17 | 19 | 19 | 19 | 15 | 14 | 14 | 14 | 13 | 11 | 15 | 15 | 13 | 14 | 14 | 11 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for CAL - Mendocino County
Wind reports 12 km away suggest it is still onshore at Gualala Rivermouth (light winds from the W at BUOY-ANVC1). 0.7m 8s swell from the WSW with a 0.6m 13s groundswell from the SSW and a 0.4m 13s groundswell from the WSW as well as a 0.2m 7s swell from the NW. 4 swells combining to make bigger set waves.
1 h 0 min ago
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Gualala Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Gualala Rivermouth Surf forecast
The above surf forecast table for Gualala Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Gualala Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Gualala 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 (Gualala 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 Gualala 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.
Gualala Rivermouth is 51 km (32 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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