
Surf Forecasts:
Trestles (Uppers) surf forecast from 12 Aug 2026:
- Best quality surf: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 8AM (local time) - 2ft (0.6m), 18s period with SSW swell.
Best Forecast Surf Conditions for Trestles (Uppers) this week:
The surf forecast for Trestles (Uppers) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 8AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.4m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trestles (Uppers) in the next 16 days are 1.2m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. 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+) | 8AM (Wed 12th Aug) | 2ft (0.6m) 18s |
| Best Surf | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks. Right off the bat, I gotta be straight with you – it’s a tough stretch. We’ve got a whole lot of small, crumbly surf and plenty of onshore wind to mess it up. The best advice I can give for most of this run is to leave the board in the car and go do something else.
Looking at the whole picture, there is no standout, epic day in the window. The first week is a write-off with persistent cross-onshore and onshore winds, and the surf barely gets to 4 ft. We’re talking about small, weak waves with moderate combined energy. Conditions are just poor for paddle surfing day after day.
Let’s break it down. Starting from Wednesday the 12th, Trestles (Uppers) is looking at tiny 2 ft SSW swell with a very long period of 17 seconds. The wind is a light cross-onshore WSW blowing at about 6 mph, but it’s enough to put wind ripples on the surface. The combined energy is weak. It’s just poor.
Thursday the 13th stays cloudy with a similar, small 2 ft to 3 ft SW swell, but the wind switches directly onshore. That’s no good – the combined energy climbs a bit, but the quality is still poor.
Friday the 14th brings a bit more hope, but not much. The morning is clear with a 2 ft SSW groundswell and a long 18-second period, and the combined energy is moderate. The wind is a light onshore at 6 mph, which isn’t ideal, but the clear skies and bigger periods mean it’s *marginal* – maybe a fun little longboard wave if you’re desperate. The afternoon sees the wind pick up to a gentle cross-onshore breeze of 9 mph, and the surf quality drops right back to poor.
Saturday the 15th through the rest of the first week and into the second is more of the same. The swell bumps up to about 4 ft on Saturday afternoon, but it’s all onshore wind and the conditions are choppy or marginal at best. The combined energy stays moderate, but the surface is just too messy.
From Sunday the 23rd right through to Thursday the 27th, we’re looking at a consistent run of tiny surf – nothing above 2 ft. The swell direction shifts from SSW to SW, with periods sometimes dropping to 13 or 14 seconds. The combined energy weakens. The wind is a mix of onshore and cross-onshore, which is the kiss of death for tiny waves. This is a solid week of flat, poor conditions.
To be honest, there isn’t any single break or session here that I can get excited about. The whole 16-day forecast is a dud. Keep your wetsuit dry and maybe take up mountain biking for a bit. The forecasts can always change, but for now, don’t waste your time.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 19°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||
316 | 193 | 264 | 261 | 255 | 353 | 280 | 299 | 360 | 807 | 417 | 627 | 666 | 499 | 443 | 367 | 367 | 264 | 261 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | glassy | on | on | glassy | on | cross-on | glassy | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 8:37PM2.07m | 9:55AM1.40m | 9:22PM2.03m | 10:28AM1.47m | 10:06PM1.92m | 11:02AM1.53m | 10:48PM1.74m | 11:37AM1.55m | 11:31PM1.52m | 12:11PM1.55m | 00:18AM1.28m | 12:47PM1.51m | 1:15AM1.05m | ||||||
Low Tide | 3:44AM-0.35m | 3:17PM0.40m | 4:19AM-0.29m | 4:04PM0.34m | 4:52AM-0.17m | 4:50PM0.32m | 5:23AM-0.01m | 5:38PM0.33m | 5:51AM0.17m | 6:30PM0.37m | 6:17AM0.37m | 7:30PM0.43m | |||||||
— | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 23 | 23 | 21 | 22 | 22 | 19 | 21 | 22 | 19 | 22 | 22 | 20 | 23 | 24 | 21 | 24 | 24 | 22 |
Feels °C | 23 | 24 | 23 | 23 | 23 | 22 | 20 | 21 | 22 | 19 | 22 | 21 | 21 | 24 | 24 | 21 | 24 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | W 6 |
316 | 193 | 264 | 261 | 255 | 353 | 280 | 217 | 360 | 807 | 417 | 627 | 666 | 499 | 443 | 367 | 367 | 264 | 58 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | S 12 | S 12 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | W 4 | SW 14 | W 5 | W 5 | W 5 | S 10 | S 10 | S 10 | SSW 18 | SSW 14 |
47 | 27 | 47 | 47 | 60 | 60 | 53 | 299 | 214 | 13 | 191 | 8 | 18 | 13 | 19 | 8 | 8 | 63 | 261 | |
Swell 3 Height (m) Direction Period (s) | W 4 | S 13 | SW 11 | SSW 11 | W 13 | SSW 21 | SSW 20 | S 11 | SSW 11 | S 12 | W 5 | S 11 | S 11 | S 11 | W 10 | W 10 | W 10 | S 10 | S 10 |
2 | 51 | 32 | 22 | 29 | 44 | 149 | 35 | 79 | 42 | 12 | 38 | 20 | 20 | 2 | 2 | 8 | 8 | 7 | |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | — | — | W 13 | — | W 6 | — | — | — | W 5 | — | — | W 5 | W 5 | W 5 | W 5 | — |
— | 2 | — | — | — | 30 | — | 2 | — | — | — | 13 | — | — | 19 | 16 | 21 | 37 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 151 | 0 | 86 | 86 | 86 | 86 | 86 | 6 | 86 | 86 | 0 |
Best forecast wave conditions in Orange County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Trestles (Uppers) Surf forecast
The above surf forecast table for Trestles (Uppers) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestles (Uppers) can be found by selecting the local surf guide option on the grey menu. Our Trestles (Uppers) 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 (Trestles (Uppers)) 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 Trestles (Uppers) 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.
Trestles (Uppers) is 6 km (4 miles) from San Clemente. If you plan a vacation in Orange County, look for hotels and other accommodation in San Clemente. San Clemente has rooms for a wide range of budgets as well as car hire and transport links.











