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, 11PM (local time) - 2.5ft (0.7m), 16s period with SW 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 11PM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.4m and 12s. Another secondary swell of 0.3m and 3s is also forecast. 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+) | 11PM (Wed 12th Aug) | 2.5ft (0.7m) 16s |
| 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, let’s break it down.
Honestly, the next couple of weeks are looking pretty flat and quiet for our area. We’re in a bit of a lull. The first decent surf doesn’t show up until Friday morning, August 14th, so we’re looking at a dry spell from now until then.
Friday, August 14th things start to get a little interesting. We’ve got some small SSW groundswell rolling in, around 2ft with a long 18 second period. The energy is still weak though, only pushing 551 (combined energy). The wind will be light and onshore in the morning, making for marginal conditions. It’s not going to be great, but it’s the first sign of life.
The weekend stays in this marginal zone. Saturday, August 15th sees similar small SSW swell, 3ft to 4ft, with that same long period around 16 seconds. The wind is cross-onshore though, so expect some chop. The wave energy is moderate, hitting 679 (combined energy) on Saturday afternoon. It’s the best of a quiet bunch, but still just marginal.
There’s no standout day here. The only break we’re looking at is Trestles (Uppers), a reef and point that’s very consistent. It’s exposed to the west, and this SSW swell is a bit off its optimum direction, so it won’t be at its best. Because it’s a point and reef setup, that long-period swell should wrap in better than at a beach break, offering some shape despite the small size. But it’s an advanced spot and it’s *always* crowded, so expect plenty of company. The water is much warmer than normal for this time of year, sitting at 75°, which is a real bonus.
From Sunday, August 16th through the end of the forecast, it’s mostly poor or marginal with small waves and cross-onshore winds. The swell stays tiny, rarely pushing over 3ft, and the period drops back under 15 seconds. There’s nothing here to get excited about.
If you’re desperate for a paddle, Friday or Saturday are your best bets. Otherwise, it’s a time to tune the board and wait.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 19°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Mon afternoon, min 20°C on Sat morning). 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) | 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 | SSW 16 | SSW 17 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 193 | 264 | 261 | 255 | 353 | 280 | 299 | 360 | 807 | 417 | 627 | 666 | 499 | 372 | 367 | 330 | 264 | 261 | 229 | 243 | 246 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | cross-on |
High Tide | 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 | 1:28PM1.45m | 2:46AM0.87m | |||||||
Low Tide | 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 | 6:40AM0.56m | 8:50PM0.46m | ||||||||
 | |  |  | |  |  | |  | | | | | | | | | | | | | |
 | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 20 | 22 | 22 | 20 | 22 | 21 | 19 | 22 | 22 | 20 | 23 | 24 | 21 | 24 | 25 | 22 | 25 | 26 | 23 |
Feels °C | 24 | 23 | 21 | 22 | 22 | 21 | 22 | 20 | 19 | 22 | 21 | 21 | 23 | 23 | 21 | 24 | 24 | 23 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | 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 7 | W 7 | W 7 | SSW 15 |
| kJ | 193 | 264 | 261 | 255 | 353 | 280 | 217 | 360 | 807 | 417 | 627 | 666 | 499 | 372 | 367 | 330 | 264 | 114 | 79 | 61 | 246 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | S 12 | S 12 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | W 4 | SW 14 | S 11 | W 5 | W 6 | S 10 | W 6 | W 6 | SSW 18 | SSW 14 | SSW 16 | SSW 17 | W 8 |
| kJ | 27 | 77 | 47 | 60 | 60 | 53 | 299 | 214 | 9 | 191 | 37 | 27 | 23 | 19 | 52 | 49 | 63 | 261 | 229 | 243 | 61 |
Swell 3 Height (m) Direction Period (s) | S 13 | SW 11 | SSW 11 | SW 12 | SSW 21 | SSW 20 | S 11 | S 11 | S 12 | W 5 | W 11 | S 11 | S 11 | W 10 | S 10 | S 10 | S 10 | S 10 | SSW 13 | SSW 13 | S 9 |
| kJ | 51 | 32 | 22 | 23 | 44 | 149 | 35 | 61 | 42 | 13 | 2 | 20 | 20 | 2 | 8 | 8 | 8 | 7 | 114 | 98 | 6 |
Wind waves Height (m) Direction Period (s) | W 4 | — | — | — | W 8 | — | — | WNW 7 | — | — | W 5 | — | — | W 6 | — | — | W 6 | — | — | — | — |
| kJ | 2 | — | — | — | 5 | — | — | 10 | — | — | 13 | — | — | 30 | — | — | 68 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 15 |
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.
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