Surf Forecasts:
Trestles (Uppers) surf forecast from 24 Aug 2026:
- Best quality surf: Saturday 29 Aug, 2AM (local time) - 4ft (1.2m), 17s 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★+): Monday 24 Aug, 8PM (local time) - 2ft (0.6m), 17s 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 Monday (Aug 24) at 8PM. The primary swell is predicted to be 0.6m and 17s 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 1.2m 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+) | 8PM (Mon 24th Aug) | 2ft (0.6m) 17s |
| Best Surf | 2AM (Sat 29th Aug) | 4ft (1.2m) 17s |
| 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 again, giving you the lowdown in feet and knots.
We’re looking at Trestles (Uppers) as the only game in town, and it’s a slow burner. The first week is a write-off. From Monday the 24th through the end of August, the swell is tiny—2ft or less—and the wind is mostly cross-on or onshore, making it choppy and messy. The water is sitting at 74°, which is much warmer than normal for this time of year. The wave energy is low to moderate (302 to 752), but the wrong wind kills it.
The first real standout hits on Tuesday the 1st of September. Morning sees a light rain, a clean offshore breeze from the NE at 9 mph, and a 4ft swell from the south with a 12-second period. That’s clean, lined-up surf. The combined energy is moderate (552), and the offshore wind means the waves will be smooth and hollow. This is the best of the whole run. The afternoon stays good with a cross-offshore breeze.
The middle of the first week of September sees some mixed conditions. Wednesday and Thursday have cross-on wind, but the swell holds around 4ft to 4ft from the south-southwest. Energy stays moderate (475 to 945). There’s a long 19-second period on Thursday afternoon, but the cross-on wind keeps it from being perfect.
The second standout is Monday the 7th of September. The morning is still a bit messy, but Monday afternoon turns glassy. The wind drops to nothing, the swell is 2ft from the southwest with a very long 21-second period, and the energy is moderate (716). That’s a clean, glassy session on a long-period groundswell. Perfect for a point break like Uppers, where those long lines will reel.
So, to sum it up: the best windows are Tuesday the 1st of September morning with that offshore wind, and the glassy Monday afternoon on the 7th. Everything else is small and onshore, with only brief moments of decent shape.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 22°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | SW 18 | SW 17 | SW 17 | SW 16 | S 13 | S 14 | S 12 | S 12 | S 12 | 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 | 197 | 179 | 270 | 216 | 225 | 518 | 670 | 607 | 508 | 242 | 317 | 270 | 347 | 289 | 867 | 587 | 627 | 604 | 417 | 400 | 321 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | on | cross-on | on | cross-on | glassy | cross-on | on | cross | cross-on | on | cross |
High Tide | 8:38AM1.17m | 7:31PM1.68m | 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 | 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 | 3:45PM0.38m | 4:19AM0.02m | 4:23PM0.33m | 4:43AM0.13m | 5:04PM0.29m | ||||||||
 | |  | | | | | |  |  | | | | | | | | | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 24 | 27 | 27 | 26 | 27 | 27 | 24 | 26 | 27 | 25 | 28 | 28 | 26 | 27 | 27 | 24 | 25 | 24 | 21 |
Feels °C | 28 | 27 | 26 | 28 | 27 | 29 | 28 | 28 | 27 | 27 | 29 | 27 | 29 | 28 | 28 | 28 | 28 | 27 | 24 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 17 | SW 16 | S 13 | S 14 | S 12 | S 12 | S 12 | S 10 | S 11 | S 10 | S 9 | S 9 | SSW 17 | SSW 17 | SSW 16 | W 8 | W 8 | W 8 | W 7 |
| kJ | 197 | 179 | 270 | 216 | 225 | 518 | 670 | 607 | 508 | 242 | 317 | 192 | 104 | 74 | 867 | 587 | 627 | 208 | 181 | 111 | 94 |
Swell 2 Height (m) Direction Period (s) | W 6 | S 13 | S 13 | S 13 | SSE 12 | SSE 11 | SW 16 | SW 16 | SW 15 | S 12 | SW 14 | SSW 18 | SSW 16 | SW 14 | W 10 | W 7 | W 8 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
| kJ | 16 | 82 | 126 | 126 | 111 | 167 | 203 | 196 | 171 | 148 | 103 | 270 | 347 | 147 | 98 | 68 | 114 | 604 | 417 | 400 | 321 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | W 6 | W 5 | W 6 | SW 16 | SW 16 | W 6 | W 6 | W 13 | SW 14 | W 8 | SW 13 | W 9 | SSW 19 | S 8 | W 9 | S 8 | S 8 | S 8 | S 14 | S 12 |
| kJ | 89 | 10 | 7 | 16 | 208 | 203 | 29 | 20 | 85 | 132 | 34 | 87 | 41 | 289 | 49 | 60 | 11 | 12 | 10 | 94 | 110 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 86 | 0 | 83 | 86 | 0 | 64 | 64 | 64 | 64 | 129 | 20 | 83 | 86 | 0 | 64 | 86 | 16 | 86 | 86 | 28 |
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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