Surf Forecasts:
Trestles (Uppers) surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 5AM (local time) - 2.5ft (0.7m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 867 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 5AM (local time) - 2.5ft (0.7m), 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 Friday (Aug 28) at 5AM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.9m and 10s. 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 29) 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+) | 5AM (Fri 28th Aug) | 2.5ft (0.7m) 18s |
| Best Surf | 5AM (Fri 28th Aug) | 2.5ft (0.7m) 18s |
| Most Powerful | 2AM (Sat 29th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's cut through the noise and get real about the next couple of weeks. It’s gonna be a long, slow grind for waves, so don’t get your hopes up for anything epic. The ocean is going to be pretty quiet for a while.
We're looking at a stretch where there's really nothing doing for the first several days. From Wednesday the 26th through the end of the month, it's a whole lot of nothing. The swell is weak, the period is unimpressive, and the conditions are just... flat and messy. It's going to be a tough go for the first week, so if you're itching to get wet, maybe bring the log or just leave the board in the car. The S-SSW swell is there, but it’s struggling to show any real energy, with the combined energy readings limping along in the low to mid hundreds (539-882). It’s not even worth paddling out for this weak sauce.
Early next week, we see a little bump in the water. The swell pushes to around 5ft on Tuesday the 1st, but it’s still not clean. Then, on Wednesday the 3rd, we finally get something with a bit of grunt. The swell jumps to 6ft, and the combined energy gets into four digits for the first time, hitting 1008 on the morning and a solid 1422 in the afternoon. That’s the best we’re going to see, but it’s still only a marginal call with those light cross-onshore winds keeping things a little bumpy.
After that little pulse, it backs right off again from the 4th through the 10th. There’s some glimmer of hope around the 8th, 9th and 10th with a long-period swell from the SSW, with periods jumping up to 17–19 seconds, but the wave heights are just too small to make it a genuine option.
When it comes to a standout spot, we're only really looking at one place in the whole window. Trestles (Uppers) is going to be the spot, just because it's all we've got. It’s a reef and point break that’s very consistent, and while it draws in that south swell, the fact is it needs a lot more size than what’s on offer for most of this time. The one window that might be worth a look is the 3rd of September, when the swell hits that 6ft mark from the SSW. It won’t be perfect, but with a period of 12 seconds, it at least has some energy. Just be aware, crowds here are always a factor if there is anything surfable. Also, this is a week and a half away, so treat this as a promising possibility, not a guarantee.
Honestly, for the rest of the time, you're better off staying home and fixing your dings. The water temp is about average for this time of year, so no need to worry about the cold.
The long-range stuff for the second week is just too weak and unreliable to get excited about. There are some bigger period swells showing up, but they just don't have the size. It looks like one of those classic, drawn-out lulls. Here's hoping the forecasts change.
Stay patient.
- Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat morning, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | S 12 | S 12 | S 11 | S 12 | S 11 | SSW 18 | SSW 16 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | S 12 | S 12 | S 12 | S 12 |
Wave Graph | |||||||||||||||||||||
649 | 529 | 317 | 387 | 272 | 204 | 347 | 289 | 867 | 587 | 733 | 604 | 498 | 400 | 321 | 229 | 235 | 504 | 485 | 547 | 748 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross-on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | cross | cross-on | on | cross | on | cross-on | glassy | cross-on | cross-on | cross-off |
High Tide | 9:16AM1.30m | 8:37PM1.78m | 9:38AM1.37m | 9:09PM1.77m | 10:01AM1.45m | 9:43PM1.71m | 10:26AM1.52m | 10:18PM1.61m | 10:52AM1.58m | 10:57PM1.45m | 11:20AM1.62m | 11:42PM1.26m | 11:53AM1.63m | 00:41AM1.06m | |||||||
Low Tide | 2:35PM0.54m | 3:31AM-0.06m | 3:09PM0.45m | 3:55AM-0.04m | 3:45PM0.38m | 4:19AM0.02m | 4:23PM0.33m | 4:43AM0.13m | 5:04PM0.29m | 5:06AM0.26m | 5:52PM0.28m | 5:29AM0.41m | 6:51PM0.30m | ||||||||
6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | |
— | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 26 | 27 | 27 | 25 | 28 | 28 | 25 | 27 | 27 | 24 | 25 | 24 | 21 | 23 | 23 | 21 | 25 | 25 | 22 |
Feels °C | 30 | 30 | 28 | 29 | 28 | 28 | 30 | 29 | 27 | 28 | 28 | 27 | 25 | 23 | 22 | 23 | 22 | 22 | 24 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 12 | S 11 | S 10 | SSW 16 | S 9 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | W 8 | W 7 | W 7 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 |
649 | 529 | 317 | 387 | 272 | 153 | 347 | 71 | 867 | 587 | 733 | 604 | 164 | 108 | 124 | 206 | 235 | 504 | 485 | 547 | 748 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | S 9 | SW 14 | W 7 | W 7 | W 7 | W 7 | SSW 15 | SSW 14 | SSW 14 | W 7 | SSW 13 | SW 13 | SW 13 | SW 18 | WNW 9 |
203 | 193 | 171 | 132 | 103 | 153 | 102 | 147 | 45 | 83 | 88 | 131 | 498 | 400 | 321 | 56 | 158 | 87 | 45 | 80 | 9 | |
Swell 3 Height (m) Direction Period (s) | W 6 | WNW 6 | W 13 | W 6 | WNW 8 | SSW 18 | W 9 | SSW 19 | S 8 | S 8 | S 8 | W 9 | S 13 | S 13 | S 12 | SSW 14 | SSW 19 | W 5 | W 5 | WNW 10 | — |
29 | 11 | 85 | 20 | 21 | 204 | 55 | 289 | 33 | 20 | 11 | 61 | 92 | 84 | 103 | 229 | 35 | 8 | 4 | 9 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 8 | — | — | W 6 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 173 | — | — | 25 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 86 | 15 | 83 | 64 | 3 | 86 | 86 | 0 | 86 | 86 | 3 | 86 | 86 | 3 | 86 | 86 | 0 | 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.











