Surf Forecasts:
Chadbourne Gulch surf forecast from 17 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 8PM (local time) - 7ft (2.1m), 8s period, NW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 8PM (local time) - 7ft (2.1m), 8s period, NW swell with 469 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8PM (local time) - 3ft (0.9m), 15s period with SSW swell.
Best Forecast Surf Conditions for Chadbourne Gulch this week:
The surf forecast for Chadbourne Gulch over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 8PM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 1.0m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Chadbourne Gulch in the next 16 days are 2.1m 8s and forecast to arrive on Wednesday (Aug 19) at 8PM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 17th Aug) | 3ft (0.9m) 15s |
| Best Surf | 8PM (Wed 19th Aug) | 7ft (2.1m) 8s |
| Most Powerful | 8PM (Wed 19th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Chadbourne Gulch over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s shaping up for Chadbourne Gulch. It’s a little spot for the beginners, fairly consistent, exposed to the swell, and it likes the swell from the WSW. The water’s running a bit cooler than normal for this time of year, sitting at 55°F.
We’re starting off a bit slow. The first couple of days, Monday the 17th and Tuesday the 18th, we’ve got some small, long-period groundswell rolling in from the SSW, around 3ft to 3ft, with a period of 15 to 16 seconds. That long period means the waves will have some shape and the energy is there – we’re talking moderate energy in the 450 to 687 range – but the size is tiny. Tuesday morning looks like the pick of these early days with some glassy conditions, which is a big plus for clean surf. It’s not going to get the heart racing, but for a beginner, it’s a fun little window.
Now, things get a bit more interesting on Wednesday the 19th. The morning shows a bump up to 6ft of swell, but it’s a short-period 8-second windswell from the NW, and the wind is cross-onshore. The energy is strong (1146), but the quality is marginal. It’s a bit messy. The afternoon drops back down to 3ft. Not the best day.
Thursday the 20th and Friday the 21st are a bit of a letdown. We’re back to small, cleaner swell but with cross-onshore or onshore winds. The wave heights are under 3ft, and the energy is moderate but the surf quality is flagged as poor or marginal. Not much to write home about.
The weekend, however, might have a little surprise. Saturday the 22nd afternoon, the wind goes glassy and we see a 5ft NW swell, but it’s a short-period 7-second windswell. The energy is moderate (382). The glassy conditions are a major positive for clean faces, but the short period means it’ll be a bit crumbly. Sunday the 23rd holds onto 5ft NW swell with a slightly better 9-second period, and light offshore winds. That’s a solid window for the beginner crew, with clean, rideable waves, though the energy is still moderate. Let’s call this the best on offer for the whole period.
After that, we hit a long dry spell. From Monday the 24th all the way through to the end of the month, the swell drops back to 2ft to 3ft, mostly from the SSW, with onshore or cross-onshore winds. The energy stays moderate, but the surf quality is consistently poor to marginal. There’s a brief spike on Thursday the 27th afternoon with a 8ft NW swell, but it’s a short-period 8-second windswell with cross-onshore wind. That’s big enough to be a handful for the beginners, but the short period and cross-wind will make it a chop fest. Not a standout.
The first few days of September look similar – small, weak, and marginal. A long stretch of waiting.
So, the nod goes to Sunday the 23rd of August at Chadbourne Gulch. It’s your best bet: 5ft of NW swell, a 9-second period, and light offshore winds. It’s clean, rideable, and just about the only time the stars align in this 16-day window. Crowds are possible here, so get in early.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 13°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | NW 8 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 18 | NW 6 | NW 6 | NW 7 | NW 8 | NW 9 | NW 9 | NW 8 |
Wave Graph | |||||||||||||||||||||
334 | 334 | 272 | 242 | 348 | 293 | 395 | 305 | 314 | 237 | 226 | 236 | 156 | 111 | 126 | 99 | 266 | 291 | 328 | 320 | 299 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | glassy | on | glassy | cross-on | on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | glassy | glassy | on | on | glassy |
High Tide | 3:21PM1.71m | 4:08AM1.23m | 4:00PM1.68m | 5:33AM1.11m | 4:46PM1.64m | 7:20AM1.08m | 5:40PM1.61m | 8:57AM1.12m | 6:42PM1.61m | 9:55AM1.18m | 7:44PM1.64m | 10:31AM1.23m | 8:38PM1.69m | ||||||||
Low Tide | 8:39AM0.44m | 9:51PM0.34m | 9:14AM0.63m | 10:57PM0.32m | 9:54AM0.80m | 00:08AM0.29m | 10:46AM0.93m | 1:19AM0.24m | 12:02PM1.00m | 2:20AM0.18m | 1:22PM1.01m | 3:10AM0.12m | 2:24PM0.97m | 3:51AM0.05m | |||||||
6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | 8:07 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 14 | 16 | 18 | 16 | 17 | 18 | 14 | 17 | 18 | 14 | 18 | 17 | 13 | 18 | 19 | 17 | 19 | 20 | 16 |
Feels °C | 17 | 18 | 14 | 16 | 17 | 16 | 16 | 17 | 14 | 16 | 17 | 14 | 17 | 16 | 13 | 17 | 18 | 18 | 18 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | SSW 15 | NW 7 | WNW 12 | WNW 11 | NW 7 | WNW 11 | WNW 10 | NW 6 | WNW 10 | NW 7 | NW 8 | NW 9 | NW 9 | NW 8 |
334 | 100 | 99 | 131 | 255 | 194 | 274 | 305 | 176 | 237 | 170 | 124 | 117 | 86 | 75 | 55 | 266 | 291 | 328 | 320 | 299 | |
Swell 2 Height (m) Direction Period (s) | NW 7 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | WNW 12 | WNW 12 | SSW 14 | SSW 14 | WNW 11 | SSW 14 | SSW 13 | WNW 10 | SSW 13 | SSW 13 | SW 16 | SW 19 | SW 18 | S 16 |
77 | 334 | 272 | 242 | 348 | 291 | 305 | 210 | 196 | 226 | 226 | 121 | 156 | 101 | 58 | 99 | 67 | 95 | 130 | 118 | 124 | |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | WNW 8 | WNW 8 | WNW 15 | WNW 13 | WNW 12 | SW 21 | SSW 15 | SW 19 | SW 19 | SSW 14 | SW 18 | SW 18 | SSW 13 | SSW 16 | SW 18 | SSW 12 | SSW 15 | SSW 16 | SW 18 |
39 | 39 | 37 | 22 | 84 | 102 | 172 | 18 | 314 | 55 | 58 | 236 | 53 | 111 | 99 | 53 | 49 | 30 | 77 | 83 | 155 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NW 7 | NW 8 | NW 7 | NW 7 | NW 6 | NW 7 | NW 7 | NW 6 | NW 6 | NW 6 | NW 6 | — | — | — | — | — |
— | — | — | — | — | 293 | 395 | 277 | 279 | 116 | 159 | 200 | 58 | 77 | 126 | 94 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 50 | 244 | 5 | 0 | 50 | 0 | 190 | 50 | 0 | 159 | 50 | 0 | 230 | 244 | 0 | 159 | 0 | 0 | 190 | 25 | 0 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Chadbourne Gulch Surf forecast
The above surf forecast table for Chadbourne Gulch provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Chadbourne Gulch can be found by selecting the local surf guide option on the grey menu. Our Chadbourne Gulch 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 (Chadbourne Gulch) 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 Chadbourne Gulch 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.
Chadbourne Gulch is 71 km (44 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.











