Surf Forecasts:
Trestles (Uppers) surf forecast from 31 Aug 2026:
- Best quality surf: Saturday 5 Sep, 11PM (local time) - 5.5ft (1.7m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 11PM (local time) - 7ft (2.2m), 14s period, S swell with 2,061 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 11PM (local time) - 2.5ft (0.7m), 13s 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 Monday (Aug 31) at 11PM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.7m and 13s. 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 2.2m 14s and forecast to arrive on Sunday (Sep 06) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 14s period and expected on Monday (Sep 07) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 31st Aug) | 2.5ft (0.7m) 13s |
| Best Surf | 11PM (Sat 5th Sep) | 5.5ft (1.7m) 14s |
| Most Powerful | 11PM (Sun 6th Sep) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, let's talk surf for the next couple of weeks.
First thing I gotta say: it's looking pretty bleak for a solid stretch. We’re staring at a full week of flat, weak, and mostly choppy conditions. Winds are cross-onshore and just messy. The first real pulse doesn’t show until Sunday, September 6th.
And that Sunday morning – that’s your one shot. Trestles (Uppers) is a reef and point break that loves a good south swell. We’re lookin’ at a solid 7ft south swell with a long 15-second period – that’s proper groundswell. The combined wave energy is strong at 2059. Winds go glassy – dead calm, from the north-northwest at just 3 mph. This is a rare, pristine window. For experienced surfers only – that size and juice is no joke.
Water temp is a balmy 77°, which is about 9° above the usual for this time of year. That’s way warmer than normal. You might be fine in boardshorts.
Crowds? Uppers always gets packed, and with conditions this good, expect a full-on lineup. Be early or be sorry.
After that Sunday morning, it drops off hard. The rest of the second week is waist-high or smaller, with weak wind and almost no energy. A few windows might have light winds and a halfway decent look, but the swell’s just not there. By mid-September, you’re lookin’ at ankle-biters.
Bottom line: one glassy gem on the 6th for the big dogs, then a whole lot of nothing. Chase that Sunday.
- Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Mon morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat night, min 20°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 14 | S 12 | SSW 13 | S 11 | SW 18 | SSW 13 | SW 16 | SW 16 | SW 17 | SW 16 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 14 | S 15 | SSW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 325 | 285 | 154 | 149 | 106 | 93 | 132 | 133 | 302 | 196 | 404 | 651 | 587 | 566 | 525 | 512 | 469 | 1373 | 1709 | 246 | 370 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | cross-on | on | cross | cross-on | on | glassy | cross-on | cross-on | cross-off | glassy | cross-off | on |
High Tide | 11:20AM1.62m | 11:42PM1.26m | 11:53AM1.63m | 00:41AM1.06m | 12:34PM1.62m | 2:20AM0.88m | 1:34PM1.57m | 5:35AM0.88m | 3:06PM1.55m | 6:58AM1.01m | 4:42PM1.62m | 7:24AM1.14m | 5:56PM1.74m | ||||||||
Low Tide | 5:52PM0.28m | 5:29AM0.41m | 6:51PM0.30m | 5:52AM0.58m | 8:11PM0.32m | 6:14AM0.73m | 9:57PM0.27m | 6:35AM0.88m | 11:34PM0.14m | 10:07AM0.94m | 00:38AM-0.01m | 11:51AM0.84m | 1:25AM-0.13m | ||||||||
 | |  | | | | | | | | | | | | | |  |  |  |  |  | |
 | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 7:16 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:09 | — | — | 7:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 26 | 19 |
Temp °C | 24 | 24 | 21 | 23 | 24 | 21 | 23 | 23 | 21 | 23 | 23 | 20 | 22 | 23 | 21 | 24 | 24 | 25 | 25 | 23 | 23 |
Feels °C | 24 | 23 | 21 | 22 | 22 | 20 | 22 | 21 | 21 | 22 | 22 | 22 | 20 | 22 | 23 | 24 | 23 | 25 | 27 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 12 | S 11 | S 11 | S 10 | W 6 | W 6 | SSW 13 | W 6 | W 7 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSE 14 | SSE 14 | SSE 14 | S 14 | S 15 | SSE 15 | SSE 14 |
| kJ | 268 | 285 | 151 | 149 | 106 | 40 | 34 | 133 | 66 | 86 | 404 | 651 | 587 | 566 | 514 | 636 | 777 | 1373 | 1709 | 2029 | 2252 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | W 6 | SSW 13 | S 10 | SW 16 | SW 16 | SW 17 | SSW 11 | W 6 | W 6 | W 6 | W 6 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 15 |
| kJ | 325 | 158 | 154 | 24 | 98 | 66 | 132 | 129 | 302 | 148 | 45 | 65 | 66 | 32 | 525 | 512 | 469 | 372 | 339 | 246 | 370 |
Swell 3 Height (m) Direction Period (s) | W 6 | SSW 19 | W 5 | SSW 13 | SW 18 | SSW 13 | SSW 13 | SSW 10 | SSW 12 | SW 16 | SSW 10 | SSW 9 | SSW 10 | SSE 15 | W 5 | W 6 | W 6 | W 5 | WNW 6 | WNW 10 | WNW 4 |
| kJ | 52 | 35 | 27 | 118 | 80 | 93 | 93 | 33 | 121 | 196 | 95 | 34 | 40 | 186 | 21 | 27 | 29 | 13 | 11 | 31 | 12 |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | WNW 6 | — | — | — | — | — | — | — | — | NW 3 | — |
| kJ | — | 33 | — | — | 32 | — | — | 24 | — | — | 62 | — | — | — | — | — | — | — | — | 8 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 129 | 3 | 89 | 86 | 0 | 83 | 86 | 0 | 0 | 0 | 134 |
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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