Surf Forecasts:
Manchester Beach surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 8AM (local time) - 7.5ft (2.3m), 8s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 8PM (local time) - 8ft (2.5m), 8s period, NW swell with 886 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 8AM (local time) - 7.5ft (2.3m), 8s period with NW swell.
Best Forecast Surf Conditions for Manchester Beach this week:
The surf forecast for Manchester Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 8AM. The primary swell is predicted to be 2.3m and 8s period with a secondary swell of 0.6m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Manchester Beach in the next 16 days are 2.5m 8s and forecast to arrive on Wednesday (Aug 12) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 7s period and expected on Sunday (Aug 16) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 13th Aug) | 7.5ft (2.3m) 8s |
| Best Surf | 8AM (Thu 13th Aug) | 7.5ft (2.3m) 8s |
| Most Powerful | 8PM (Wed 12th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Manchester Beach over the next 16 days.
The Lowdown
Alright, let me level with you. It's a pretty bleak run for Manchester Beach. We're looking at a solid stretch with very little to get excited about. The water is way colder than normal for this time of year, sitting at 54°F, which is over three and a half degrees colder than average, so factor that into your wetsuit choice.
Right from the start, Wednesday the 12th of August, there's a 8ft NW swell but with a short 8-second period and a light cross-onshore wind. The wave energy is moderate (938), but the quality is poor. It's borderline junky. Thursday the 13th is much the same story: 7ft NW, still a short period, and the wind goes cross-shore. Not clean.
Friday the 14th, the swell drops right off to 2ft, even though the period stretches out to 15 seconds from the SW. That long period means better shaped waves, but for a beach break like this, that long period groundswell tends to close out. The energy is weak (561).
Saturday the 15th and Sunday the 16th see a small 3ft to 4ft SSW swell with a long 16-17 second period. The wind stays light cross-onshore, so it's not totally blown out, but the wave comment calls it "marginal." Even the light wind can't fix the lack of size and the bumpy texture from that cross-onshore breeze.
From Monday the 17th right through the following weekend, it's just a long, flat, or weak run. Swell hangs around 3ft to 3ft, periods drop, and the wind is mostly onshore. The combined energy dips well below 500 for many of these sessions.
There is a slight pulse on Sunday the 23rd of August, with 5ft showing in the afternoon. But the period is a shocking 6 seconds – that's pure wind chop, and the wind is offshore but strong at 12 mph. It'll be messy.
The real hope, if you can call it that, comes from Monday the 24th of August into Tuesday the 25th. We get a bump of NW swell, hitting 7ft on Tuesday morning, with a period of 8 seconds. Combined energy is moderate to strong (825), and the wind is light offshore to start the day. That's the only window that looks even half-decent for a surf, and it's still a short-period, junky NW swell at a beach break. It's really only for the experienced crew – that size is pushing it for beginners.
Overall, there's no standout gem here. It's a gap of at least a week of mediocre, poor, or flat conditions. The best shot you've got is that Tuesday the 25th morning NW swell. If you're desperate, that's your window, but keep expectations low.
Rusty
Short Range ForecastMostly dry. Very mild (max 15°C on Wed morning, min 12°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sat morning, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | SW 15 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | NW 7 | SSW 16 | NW 8 |
Wave Graph | |||||||||||||||||||||
765 | 701 | 728 | 634 | 470 | 309 | 223 | 277 | 360 | 608 | 380 | 627 | 519 | 463 | 405 | 405 | 334 | 330 | 309 | 357 | 499 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross | on | glassy | cross | on | glassy | cross-on | on | glassy | on | on | glassy | cross-on | on | cross-on | on | on | cross-on |
High Tide | 12:12PM1.52m | 11:19PM2.07m | 12:47PM1.60m | 00:09AM1.95m | 1:22PM1.67m | 1:00AM1.79m | 1:58PM1.71m | 1:53AM1.60m | 2:33PM1.73m | 2:50AM1.40m | 3:10PM1.71m | 3:57AM1.23m | 3:49PM1.68m | ||||||||
Low Tide | 5:15PM0.62m | 6:15AM-0.27m | 6:09PM0.52m | 6:53AM-0.14m | 7:02PM0.45m | 7:30AM0.03m | 7:56PM0.39m | 8:05AM0.23m | 8:52PM0.36m | 8:40AM0.44m | 9:52PM0.34m | 9:15AM0.63m | 10:58PM0.32m | ||||||||
6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | |
— | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 13 | 15 | 15 | 13 | 15 | 14 | 13 | 15 | 14 | 12 | 15 | 15 | 13 | 15 | 15 | 12 | 14 | 14 | 13 |
Feels °C | 14 | 13 | 11 | 13 | 14 | 13 | 14 | 13 | 11 | 14 | 13 | 10 | 13 | 14 | 13 | 13 | 13 | 9 | 10 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | NW 8 | SSW 16 | SSW 16 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | SSW 17 | SSW 16 | NW 6 | SSW 16 | SSW 16 | NW 6 | NW 6 | SSW 15 | NW 7 | NW 7 | SSW 16 | SSW 16 |
765 | 179 | 326 | 634 | 470 | 309 | 189 | 147 | 130 | 608 | 380 | 77 | 519 | 463 | 103 | 68 | 334 | 226 | 239 | 357 | 291 | |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SSW 13 | WNW 13 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 19 | SSW 18 | NW 7 | SSW 13 | SSW 16 | NW 6 | NNW 7 | SSW 15 | SSW 15 | W 9 | SSW 14 | SSW 14 | WNW 15 | WNW 14 |
204 | 67 | 34 | 203 | 251 | 245 | 223 | 277 | 360 | 100 | 120 | 627 | 60 | 19 | 405 | 405 | 39 | 330 | 268 | 42 | 105 | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | WNW 12 | W 17 | S 11 | WNW 12 | S 11 | SSW 20 | SSW 14 | SW 14 | WNW 10 | SSE 12 | WNW 10 | WNW 10 | WNW 9 | W 8 | W 9 | SSE 11 | SSW 18 | SSW 18 | S 10 | SSW 13 |
56 | 15 | 5 | 21 | 29 | 20 | 149 | 138 | 214 | 35 | 47 | 34 | 32 | 29 | 37 | 41 | 11 | 62 | 62 | 2 | 65 | |
Wind waves Height (m) Direction Period (s) | — | NW 8 | NW 8 | — | — | — | — | — | — | — | NW 7 | — | — | NW 6 | — | — | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 |
— | 701 | 728 | — | — | — | — | — | — | — | 82 | — | — | 31 | — | — | 88 | 292 | 309 | 336 | 499 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 51 | 125 | 10 | 21 | 270 | 0 | 51 | 125 | 0 | 51 | 118 | 0 | 51 | 118 | 0 | 51 | 118 | 36 | 149 | 270 | 65 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Manchester Beach Surf forecast
The above surf forecast table for Manchester Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Manchester Beach can be found by selecting the local surf guide option on the grey menu. Our Manchester Beach 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 (Manchester Beach) 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 Manchester Beach 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.
Manchester Beach 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.











