Surf Forecasts:
Trestles (Uppers) surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 2AM (local time) - 4.5ft (1.3m), 14s period, S 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★+): Tuesday 25 Aug, 5AM (local time) - 2.5ft (0.8m), 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 Tuesday (Aug 25) at 5AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.6m 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 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. The largest open ocean swell (not directed at the beach) is 0.8m 12s period and expected on Tuesday (Aug 25) at 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 25th Aug) | 2.5ft (0.8m) 16s |
| Best Surf | 2AM (Wed 26th Aug) | 4.5ft (1.3m) 14s |
| 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, Rusty here. Let’s look at the surf ahead.
We’re starting out pretty slow. There’s no real surf worth talking about until Thursday, August 27th. Before that, the waves are small, onshore, and junky—leave the board at home.
The best call in the whole 16 days is Trestles (Uppers). This is a reef and point that’s very consistent, open to the west, and loves a W swell. We’re not getting that—it’s all S to SSW. But the pick of the week is Thursday morning, August 27th. Swell is a clean 4ft from the S with a 10-second period. Combined energy is moderate at 574. Wind is light and onshore, so it’ll be glassy and clean. Small but fun.
Next up is Friday morning, August 28th. Only 3ft from the SSW, but check that 16-second period—that’s long-period groundswell. Combined energy is 511 (moderate). Light cross-onshore wind means just a tiny ripple. It’ll peel nicely on the point, but expect crowds all day.
After that, from Saturday the 29th through Sunday the 30th, the swell stays around 3-4ft but the wind turns southerly and choppy. Quality drops fast.
From Monday, August 31st all the way to Wednesday, September 9th, it’s mostly poor. Wave heights barely hit 3ft, periods are short, and the wind is either cross-onshore or onshore. There’s a small glimmer on Saturday, September 5th with 4ft SSW swell and a 16-second period, combined energy at 859 (moderate-strong), and light onshore wind—but it’s still not clean. Water temp is average for the season.
Bottom line: a couple of okay mornings in the first week if you’re patient. The second week is dead. Not much to get excited about.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 17 | SW 16 | S 13 | S 14 | S 12 | S 12 | S 11 | S 10 | S 11 | SSW 18 | SSW 16 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 270 | 216 | 225 | 613 | 649 | 628 | 394 | 300 | 272 | 270 | 347 | 289 | 867 | 580 | 733 | 706 | 537 | 400 | 321 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | glassy | cross-on | cross-on | cross | on | on | glassy | cross-on | cross-on | glassy | on | cross-on | cross-on | cross-on | on | cross |
High Tide | 8:56AM1.23m | 8:05PM1.75m | 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 | |||||||
Low Tide | 2:41AM-0.02m | 2:01PM0.63m | 3:06AM-0.06m | 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 | |||||||
 |  | | | |  |  | | | | | | | | | | | | | |
 | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 27 | 27 | 26 | 27 | 26 | 24 | 26 | 26 | 26 | 28 | 28 | 26 | 27 | 27 | 23 | 25 | 25 | 22 |
Feels °C | 27 | 30 | 28 | 28 | 28 | 27 | 26 | 27 | 27 | 28 | 29 | 28 | 28 | 28 | 27 | 26 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | S 13 | S 14 | S 12 | S 12 | S 11 | S 10 | S 11 | S 10 | S 9 | S 8 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | W 7 | SSW 14 | W 7 |
| kJ | 270 | 216 | 225 | 613 | 649 | 628 | 394 | 300 | 272 | 188 | 103 | 71 | 867 | 580 | 733 | 706 | 131 | 400 | 117 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | SSE 12 | S 11 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SSW 16 | SW 14 | W 7 | W 7 | S 8 | W 7 | SSW 15 | W 7 | SSW 14 |
| kJ | 126 | 126 | 111 | 202 | 203 | 198 | 171 | 132 | 102 | 270 | 347 | 147 | 48 | 79 | 11 | 152 | 537 | 103 | 321 |
Swell 3 Height (m) Direction Period (s) | W 5 | W 6 | SW 16 | SW 16 | W 6 | W 6 | W 13 | SSW 19 | WNW 8 | SW 13 | W 11 | SSW 19 | S 8 | S 8 | S 10 | S 8 | S 9 | SSE 14 | S 12 |
| kJ | 7 | 16 | 208 | 203 | 28 | 18 | 85 | 142 | 21 | 87 | 61 | 289 | 33 | 20 | 8 | 12 | 6 | 36 | 77 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 7 | — | — | W 7 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 26 | — | — | 77 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 83 | 86 | 0 | 64 | 64 | 3 | 83 | 151 | 0 | 86 | 86 | 0 | 86 | 86 | 27 | 86 | 86 | 3 |
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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