Surf Forecasts:
Trestles (Uppers) surf forecast from 22 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: Wednesday 26 Aug, 5PM (local time) - 6ft (1.9m), 14s period, S swell with 1,352 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 2AM (local time) - 1.5ft (0.5m), 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 Saturday (Aug 22) at 2AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.4m and 5s. 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 1.9m 14s and forecast to arrive on Wednesday (Aug 26) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 22nd Aug) | 1.5ft (0.5m) 13s |
| Best Surf | 5AM (Fri 28th Aug) | 2.5ft (0.7m) 18s |
| Most Powerful | 5PM (Wed 26th Aug) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, folks, Rusty here with the lowdown on the swell over the next couple weeks.
Honestly, the first stretch is a bit of a letdown. From Friday 21 August all the way through Tuesday 25 August, we’re looking at tiny, weak surf. Swell heights are barely 1ft to 2ft, coming from the SSW and SW with periods between 13 and 18 seconds. The wind is light but cross-onshore, so the surface is gonna be a little bumpy. The combined energy is weak to moderate, in the 163 to 368 range. It’s pretty marginal and not worth getting wet for.
Things perk up on Wednesday 26 August. A solid S swell pushes in, with heights hitting 5ft in the morning and 6ft in the afternoon. The period is a clean 13 to 14 seconds, and the combined energy jumps to 1390-1413, which is moderate to strong. The wind is still light and cross-onshore, so it’ll be a bit choppy but rideable. This is a big step up – not for beginners, as anything over 5ft starts to get serious. Thursday 27 August keeps some S swell at 4ft to 4ft, with periods dropping to 11-12 seconds, and energy easing to 422-601. Still a decent window.
The real standout, and the one I’d mark on the calendar, is Saturday 5 September. That’s more than a week away, so keep an eye on it but it’s looking promising. We’ve got a solid S swell with heights of 8ft to 8ft and a 14-second period. The combined energy is strong, at 2552-2553. This is proper groundswell. The wind is light and offshore (on), which is a huge bonus – clean faces and good shape. Trestles (Uppers) is a reef and point break, so with a long period swell like this, it’ll hold up well. The waves will have more energy, longer gaps between sets, and better shape. But with size over 8ft, this is experts only. And the crowds at Uppers are always heavy, so expect a packed lineup.
The water temp is running about 71°F, a touch warmer than usual for this time of year, so a spring suit should be fine.
So, to sum it up: the first week is mostly flat and messy. The real action starts Wednesday 26 August with a solid S swell, but the best bet is Saturday 5 September when we get a clean, strong southerly groundswell with light offshore winds. That’s the day to go for.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sun morning, min 22°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Tue afternoon, min 22°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 13 | SSW 13 | SSW 13 | SSW 15 | SSW 14 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | S 14 | S 13 | S 14 | S 12 | S 12 | S 11 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 137 | 98 | 92 | 188 | 218 | 127 | 155 | 213 | 197 | 179 | 224 | 216 | 208 | 366 | 663 | 1352 | 513 | 449 | 274 | 178 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | on | cross-on | glassy |
High Tide | 5:05PM1.40m | 8:13AM1.05m | 6:07PM1.49m | 8:24AM1.11m | 6:54PM1.59m | 8:38AM1.17m | 7:31PM1.68m | 8:56AM1.23m | 8:05PM1.75m | 9:16AM1.30m | 8:37PM1.78m | 9:38AM1.37m | 9:09PM1.77m | |||||||
Low Tide | 1:08AM0.21m | 11:54AM0.93m | 1:45AM0.11m | 12:49PM0.84m | 2:15AM0.03m | 1:27PM0.73m | 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 | |||||||
 |  | | | | | |  | | | | | | | | | |  | | | |
 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 7:29 | — | — | 7:28 | — | — | 7:27 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 23 | 26 | 27 | 25 | 28 | 28 | 25 | 27 | 28 | 25 | 28 | 29 | 26 | 26 | 26 | 24 | 26 | 26 | 25 |
Feels °C | 26 | 25 | 27 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 28 | 28 | 29 | 27 | 26 | 26 | 26 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | W 6 | SSW 15 | SSW 14 | W 6 | SSW 13 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | W 7 | S 13 | S 14 | S 12 | S 12 | S 11 | S 10 |
| kJ | 137 | 98 | 19 | 188 | 218 | 38 | 98 | 213 | 197 | 179 | 224 | 216 | 208 | 92 | 663 | 1352 | 513 | 449 | 274 | 158 |
Swell 2 Height (m) Direction Period (s) | W 6 | W 5 | SSW 13 | W 6 | W 6 | SSW 13 | SW 18 | W 5 | W 6 | S 13 | S 13 | W 6 | S 13 | S 14 | S 15 | W 7 | S 10 | W 7 | W 8 | SW 14 |
| kJ | 18 | 9 | 92 | 18 | 15 | 99 | 155 | 18 | 25 | 82 | 126 | 27 | 125 | 366 | 648 | 45 | 122 | 49 | 45 | 151 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 18 | SSW 12 | SW 19 | SW 19 | SSW 16 | SW 18 | SSW 12 | S 15 | W 5 | S 13 | SSE 11 | S 17 | W 7 | W 14 | W 7 | SW 14 | SW 14 | SSW 18 |
| kJ | 48 | 47 | 52 | 27 | 58 | 127 | 84 | 199 | 89 | 68 | 20 | 125 | 40 | 202 | 79 | 16 | 37 | 103 | 103 | 178 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 24 | — | — | 24 | — | — | 29 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 86 | 0 | 83 | 86 | 0 | 86 | 12 | 0 | 86 | 86 | 0 | 86 | 12 | 3 | 83 | 64 | 28 | 83 | 83 | 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.
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