Surf Forecasts:
Trestles (Uppers) surf forecast from 27 Aug 2026:
- Best quality surf: Thursday 3 Sep, 8AM (local time) - 6ft (1.8m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 8AM (local time) - 6ft (1.8m), 14s period, SSW swell with 1,144 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 11PM (local time) - 3.5ft (1.0m), 10s period with S 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 Thursday (Aug 27) at 11PM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.6m and 14s. 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 1.8m 14s and forecast to arrive on Thursday (Sep 03) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 13s period and expected on Monday (Aug 31) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 27th Aug) | 3.5ft (1.0m) 10s |
| Best Surf | 8AM (Thu 3rd Sep) | 6ft (1.8m) 14s |
| Most Powerful | 8AM (Thu 3rd Sep) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's see what’s shaking for Trestles (Uppers) in the weeks ahead.
Right off the bat, it's a tough outlook. We’ve got a real long stretch of so-so conditions. There's swell in the water, but the winds are mostly cross-onshore and the tide never seems to line up. You’ll need to be patient because the good stuff is a long way off.
The water temp is a balmy 73°, which is a solid 5° warmer than average for this time of year. That’s some seriously warm water for late August – nothing like the usual autumn cooldown.
We start on Thursday, the 27th of August, with a small 4ft S swell at 12 seconds. The combined wave energy is moderate (661), but with a cross-onshore breeze from the SSW, it's going to be a bit bumpy and messy. It’s just not clean enough to get the blood pumping. That same tune plays all the way through the end of August and into the first week of September – small, onshore junk.
Honestly, there's a whole lot of ‘meh’ here. The swell is coming from the S and SSW, but Uppers really wants it from the W to really fire. Everything is just slightly off.
There is one window, but it’s a long way out. On Thursday the 3rd of September, things pick up. The morning has a 4ft SSW swell with a 14-second period, and the energy climbs to 1247 – a solid moderate push. The afternoon gets even bigger at 6ft from the SSW, with a 12-second period and energy at 1297. The wind is light and cross-onshore, so it won't be perfect, but it's the best shot you’ll get. 6ft at Uppers is a serious wave, so this is advanced territory. Crowds at Uppers are *always* a given, so be ready to fight for a wave.
After that pulse, it fades out again. There's a small clean window on Monday, September 7th, with an afternoon offshore wind from the NE at 16 mph blowing over a tiny 3ft SSW swell. It’ll be glassy, but you’ll need a longboard. The rest of that second week looks small and lumpy.
Don't hold your breath for the last few days; it stays small and the wind stays wrong. That Thursday the 3rd is your only real target, and even then, it’s not a classic.
Stay patient, and keep an eye on the 3rd. It’s the best we’ve got.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 23°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 25°C on Sun morning, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 11 | SSW 18 | SSW 16 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | S 12 | S 12 | S 11 | S 11 | S 12 | SSW 12 | SSW 12 | SSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 387 | 272 | 204 | 347 | 289 | 867 | 587 | 733 | 706 | 537 | 400 | 321 | 581 | 496 | 316 | 344 | 338 | 411 | 503 | 343 | 1026 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | cross-on | cross-on | cross | on | cross-on | cross | cross-on | on | glassy | on | cross-on | glassy | cross-on | cross-on | cross-off | on | cross-on | cross |
High Tide | 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 | 12:34PM1.62m | 2:20AM0.88m | |||||||
Low Tide | 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 | 5:52AM0.58m | 8:11PM0.32m | ||||||||
 | |  |  | |  | | | | | | | | | | | |  |  | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — |
Temp °C | 28 | 28 | 26 | 28 | 28 | 26 | 27 | 27 | 24 | 25 | 25 | 22 | 24 | 24 | 22 | 25 | 25 | 22 | 23 | 24 | 23 |
Feels °C | 31 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 25 | 24 | 24 | 24 | 23 | 22 | 25 | 23 | 21 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 11 | S 10 | SSW 16 | S 9 | SSW 17 | SSW 17 | SSW 16 | W 8 | W 8 | SSW 14 | W 7 | S 13 | S 12 | S 12 | S 11 | S 11 | S 12 | SSW 12 | SSW 12 | SSW 13 |
| kJ | 387 | 272 | 153 | 347 | 71 | 867 | 587 | 733 | 164 | 135 | 400 | 127 | 581 | 496 | 316 | 344 | 338 | 411 | 503 | 343 | 1026 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SSW 18 | S 9 | SW 14 | W 7 | W 7 | W 7 | SSW 16 | SSW 15 | W 7 | SSW 14 | W 6 | W 6 | SW 13 | W 5 | SW 18 | SW 18 | SW 16 | SSW 16 | S 15 |
| kJ | 132 | 103 | 204 | 102 | 147 | 49 | 62 | 66 | 706 | 537 | 77 | 321 | 54 | 27 | 84 | 4 | 49 | 111 | 216 | 322 | 17 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SW 18 | SW 14 | W 8 | SSW 19 | S 8 | S 8 | WNW 9 | S 9 | S 14 | S 13 | SSE 12 | SW 14 | SSW 14 | W 5 | SW 18 | W 10 | W 10 | WNW 5 | SSW 13 | S 15 |
| kJ | 142 | 81 | 153 | 32 | 289 | 32 | 20 | 28 | 14 | 93 | 121 | 208 | 200 | 131 | 8 | 50 | 2 | 2 | 14 | 156 | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 7 | — | — | — | — | — | — | — | — | W 5 | WNW 4 | W 5 | WNW 4 | WNW 4 |
| kJ | — | — | — | — | — | — | — | 112 | — | — | — | — | — | — | — | — | 4 | 11 | 12 | 6 | 20 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 64 | 64 | 0 | 86 | 86 | 3 | 86 | 86 | 86 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 20 | 86 | 12 |
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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