Surf Forecasts:
Trestles (Uppers) surf forecast from 1 Sep 2026:
- Best quality surf: Monday 7 Sep, 8AM (local time) - 8ft (2.5m), 15s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 8AM (local time) - 8ft (2.5m), 15s period, S swell with 3,114 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 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 Wednesday (Sep 02) at 2AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.8m and 5s. Another secondary swell of 0.6m and 10s is also forecast. Another secondary swell of 0.8m and 5s is also forecast. 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 2.5m 15s and forecast to arrive on Monday (Sep 07) 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 1.5m 14s period and expected on Saturday (Sep 05) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 2nd Sep) | 1.5ft (0.5m) 13s |
| Best Surf | 8AM (Mon 7th Sep) | 8ft (2.5m) 15s |
| Most Powerful | 8AM (Mon 7th Sep) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Trestles (Uppers) over the next couple of weeks.
Right off the bat, we’re staring down a pretty grim stretch. For the first five days – from Tuesday the 1st right through to Saturday the 5th – it’s flat city. The swell is tiny, coming in at 2 ft to 3 ft from the south, and the wind is blowing cross-onshore every session. The wave energy is weak (288 to 733), and the conditions are just plain poor. You’d be better off cleaning your board or taking a long walk. The water temperature is sitting at 77°, which is a massive 9° warmer than usual for this time of year, so it feels like a bath out there.
Now, Sunday the 6th is where we finally get a little pulse of life. The swell jumps up to 7 ft on the morning from the south, with a period of 14 seconds, and the energy ramps up to 1588 (moderate). It’s still cross-onshore, so it’s a bit messy, but it’s a start. The afternoon, however, is the real gem of this whole outlook. The wind shifts to a light offshore from the northwest, the swell bumps up to 7 ft and cleans up nicely. The wave comment says it’s excellent for experienced surfers – and that’s what we’re looking at. The energy is 1932, and the period is a solid 14 seconds. This is a groundswell, and it’s going to be a bit walled up for the beach breaks, but at a reef and point setup like Uppers, it’ll line up nicely. That Sunday afternoon window is the standout of the entire 16 days.
Monday the 7th keeps the size, with 8 ft swell from the south, but the wind cranks up to a moderate cross-shore breeze (12-16 mph), which puts a chop on it. The energy is still strong (3127), but the quality drops right off. Tuesday the 8th sees the swell drop back to 5 ft-6 ft, and the cross-onshore wind returns, so we’re back to choppy, poor conditions.
After that, from Wednesday the 9th all the way through to Wednesday the 16th, it’s a long, disappointing run. The swell hangs around 1 ft to 3 ft, predominantly from the southwest, with periods that are all over the place. The wind is mostly cross-onshore, and the wave energy is weak, dropping from 398 down to 150. The only slightly interesting moment is the very last session on the 16th – Wednesday afternoon – where the wind goes glassy from the ENE, but the swell is only 1 ft from the SW with a period of 17 seconds. That’s a long period for such a tiny wave, and at a beach-and-reef setup, it won’t do much. It’s described as surfable but very ordinary. With the energy down at 170, it’s not worth jumping in the car for.
So, the honest truth is this: you’ve got a big gap of poor surf until Sunday the 6th. That Sunday afternoon is your one and only shot at something decent. The rest of the forecast is a write-off for a paddle. Given the size and the wind patterns, if you’ve got a kite, that might be more interesting than a surfboard for most of the next two weeks.
Stay patient, and keep an eye on the charts.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 20°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 11 | SW 18 | SSW 13 | SW 16 | SW 16 | SW 17 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 14 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
149 | 106 | 93 | 132 | 133 | 295 | 188 | 404 | 547 | 587 | 559 | 674 | 469 | 469 | 1063 | 1563 | 1929 | 2593 | 3108 | 2697 | 1706 | |
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 | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross | cross | cross-off |
High Tide | 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 | 7:51AM1.26m | 6:54PM1.85m | ||||||||
Low Tide | 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 | 12:54PM0.67m | 2:04AM-0.19m | ||||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | |
— | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 20 | 23 | 23 | 21 | 23 | 23 | 20 | 23 | 23 | 21 | 24 | 25 | 24 | 26 | 27 | 27 | 28 | 29 | 27 |
Feels °C | 23 | 21 | 19 | 22 | 21 | 20 | 23 | 22 | 20 | 22 | 23 | 22 | 24 | 24 | 24 | 26 | 29 | 29 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | W 5 | W 6 | SSW 13 | W 6 | W 7 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SSW 13 |
149 | 106 | 37 | 34 | 133 | 58 | 86 | 404 | 547 | 587 | 559 | 714 | 754 | 861 | 1063 | 1563 | 1929 | 2593 | 3108 | 2697 | 1706 | |
Swell 2 Height (m) Direction Period (s) | W 6 | SSW 13 | S 10 | SSW 13 | SW 16 | SSW 12 | SSW 11 | SSW 10 | W 6 | W 6 | SSE 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | WNW 6 | W 12 | WSW 11 | W 10 | — | — |
21 | 98 | 66 | 95 | 129 | 158 | 140 | 56 | 55 | 68 | 392 | 674 | 469 | 469 | 475 | 10 | 3 | 22 | 19 | — | — | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SW 18 | SSW 13 | SW 16 | SSW 10 | SW 17 | SW 15 | SSW 12 | SW 12 | SSW 11 | W 6 | W 5 | SW 11 | SW 10 | WSW 10 | SW 20 | — | — | — | — | — |
118 | 80 | 93 | 132 | 34 | 295 | 188 | 58 | 67 | 78 | 22 | 11 | 43 | 39 | 40 | 15 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | W 5 | WNW 5 | — | W 6 | — | — | W 6 | — | — | — | — | — | W 5 | — | — | — | — | — | — | — |
— | 21 | 39 | — | 24 | — | — | 42 | — | — | — | — | — | 8 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 86 | 0 | 78 | 86 | 0 | 86 | 86 | 0 | 86 | 151 | 0 | 86 | 86 | 12 | 12 | 0 | 0 | 62 | 86 | 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.











