Surf Forecasts:
Chadbourne Gulch surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 3ft (0.9m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 8PM (local time) - 6ft (1.8m), 8s period, NW swell with 437 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (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 Thursday (Aug 20) at 2AM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 1.2m and 7s. Another secondary swell of 0.9m and 12s is also forecast. Another secondary swell of 1.6m and 7s is also forecast. 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 1.8m 8s and forecast to arrive on Sunday (Aug 23) 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+) | 2AM (Thu 20th Aug) | 3ft (0.9m) 15s |
| Best Surf | 2AM (Thu 20th Aug) | 3ft (0.9m) 15s |
| Most Powerful | 8PM (Sun 23rd Aug) | 6ft (1.8m) 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 coming down the line for Chadbourne Gulch.
We’re looking at a pretty quiet start to the forecast window. The surf is small and the conditions are mostly marginal, so don’t expect anything sparking until the middle of the second week. The water temperature is sitting at 57°F, which is about what you’d expect for this time of year – nothing wild there.
The standout period is shaping up to be Sunday afternoon, August 23rd, and then again on Monday afternoon, August 24th. On Sunday afternoon, we’ve got a 6ft swell from the NW with a glassy wind state – that’s pure magic for Chadbourne Gulch. The wave energy is moderate (547), and with that offshore wind from the WSW at just 3 mph, it’ll be clean as a whistle. Monday afternoon is also a cracker: 4ft from the NW, glassy again, with a similar energy reading (561). These are the windows to circle.
Another one to keep an eye on is Wednesday afternoon, August 26th – 5ft from the NW, glassy, moderate energy (527). And then Thursday afternoon, August 27th, the swell picks up to 7ft from the NW, still glassy, with strong energy (679). That’s a solid wave for experienced surfers, but beginners might find it a bit much.
The tail end of the forecast gets messy. By Sunday, August 30th, the wind cranks up to 16-22 mph from the NW, making it cross-onshore and choppy, with 7ft to 8ft of swell – that’s more of a kite-surfing setup than a paddle session. That rough stuff continues into Monday, August 31st.
The very last highlight is Wednesday afternoon, September 3rd – a small 2ft SSW groundswell, glassy, with light energy (360). It’s not big, but it’ll be clean for a mellow session.
So, to sum it up: the first week is pretty quiet, but the second half of August and the start of September have some proper glassy windows. The best of the best? Sunday August 23rd and Monday August 24th afternoons – no question.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Sun morning, min 12°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 14 | SSW 14 | SSW 14 | WNW 11 | SW 18 | SSW 13 | SSW 13 | SSW 13 | NW 7 | SW 19 | NW 8 | NW 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | ||||||||||||||||||||
334 | 314 | 237 | 226 | 236 | 156 | 111 | 99 | 99 | 98 | 159 | 242 | 346 | 291 | 255 | 216 | 181 | 267 | 214 | 161 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | on | glassy | glassy | cross-on | glassy | glassy | on | cross-on | glassy |
High Tide | 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 | 10:58AM1.28m | 9:25PM1.75m | 11:23AM1.33m | 10:07PM1.80m | |||||||
Low Tide | 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 | 3:13PM0.90m | 4:26AM0.01m | 3:55PM0.82m | 4:58AM-0.02m | |||||||
— | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | |
8:06 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | — | 7:58 | — | — | 7:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 13 | 16 | 16 | 13 | 15 | 16 | 12 | 15 | 16 | 14 | 19 | 19 | 17 | 18 | 17 | 14 | 16 | 16 | 13 |
Feels °C | 17 | 13 | 15 | 14 | 13 | 14 | 15 | 11 | 14 | 14 | 14 | 17 | 18 | 17 | 17 | 16 | 14 | 15 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | NW 7 | NW 7 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 6 |
179 | 131 | 237 | 170 | 167 | 128 | 86 | 80 | 75 | 54 | 28 | 242 | 346 | 291 | 250 | 216 | 121 | 77 | 52 | 88 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | WNW 12 | NW 6 | SSW 14 | NW 5 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 16 | SW 19 | SW 18 | S 16 | SW 18 | S 14 | S 14 | SW 16 | SW 16 | SW 16 |
334 | 196 | 62 | 226 | 34 | 156 | 101 | 99 | 99 | 98 | 95 | 231 | 118 | 124 | 255 | 153 | 146 | 267 | 214 | 161 | |
Swell 3 Height (m) Direction Period (s) | WNW 12 | SSW 15 | SSW 14 | SW 19 | SSW 14 | NW 7 | SW 18 | NW 8 | NW 7 | SW 18 | SSW 12 | SSW 12 | SSW 16 | SW 18 | S 14 | SW 18 | SW 17 | S 13 | S 13 | S 13 |
210 | 314 | 223 | 58 | 236 | 35 | 111 | 15 | 27 | 49 | 51 | 29 | 83 | 199 | 153 | 192 | 181 | 126 | 126 | 86 | |
Wind waves Height (m) Direction Period (s) | — | NW 7 | NW 6 | NW 6 | NW 6 | NW 7 | NW 4 | NW 4 | — | NW 5 | NW 7 | — | — | — | — | — | — | — | NW 7 | — |
— | 226 | 96 | 60 | 62 | 69 | 9 | 8 | — | 58 | 159 | — | — | — | — | — | — | — | 86 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 25 | 0 | 159 | 34 | 0 | 244 | 244 | 0 | 148 | 306 | 0 | 141 | 0 | 0 | 70 | 0 | 0 | 117 | 77 | 0 |
Best forecast wave conditions in Mendocino County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.











