Surf Forecasts:
Trestles (Uppers) surf forecast from 2 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8AM (local time) - 4.5ft (1.3m), 14s period, S swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 11AM (local time) - 6.5ft (2.0m), 14s period, S swell with 1,620 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 11PM (local time) - 3ft (0.9m), 12s 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 11PM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.6m and 16s. 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 2.0m 14s and forecast to arrive on Sunday (Sep 06) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 14s period and expected on Saturday (Sep 05) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 2nd Sep) | 3ft (0.9m) 12s |
| Best Surf | 8AM (Sat 5th Sep) | 4.5ft (1.3m) 14s |
| Most Powerful | 11AM (Sun 6th Sep) | 6.5ft (2.0m) 14s |
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 coming down the pipe for the next couple of weeks.
Right off the bat, we’ve got a pretty slow start. Wednesday and Thursday of this week are a bit of a write-off with tiny, weak surf and wonky winds. The water is sitting at a very warm 77°F, which is much warmer than normal for this time of year – feels like a bath out there. Friday is still marginal, with small 3ft SSW swell and light cross-onshore breezes making for a bumpy surface. The real story, and the standout of the whole forecast, is kicking off on Sunday, the 6th of September.
That Sunday morning is the one to circle. The wind goes light offshore from the NE, and we’ve got a solid 7ft south swell rolling in with a 14-second period. That’s real groundswell energy, and the combined energy reading of 1642 tells you there’s some proper push behind it. This is going to be excellent surf for experienced surfers, with clean, lined-up waves. Trestles (Uppers) is a reef and point setup, so it should handle that long-period S swell beautifully. Just be aware that the crowds are always there – it’s Trestles, after all.
The swell drops a touch on Monday the 7th but still holds around 6ft, though the wind goes cross-onshore, so the quality won’t be as pristine as Sunday morning. Tuesday the 8th sees the swell drop a bit more and the wind picks up stronger from the WNW, making it choppy. After that, we’re looking at a long, drawn-out period of small surf. From Wednesday the 9th all the way through to the end of the forecast period on the 17th, the waves are mostly under 3ft, with weak energy and poor to marginal conditions. The wind is almost always cross-onshore, and the swell is too small to get excited about. There’s a brief uptick in period on the 16th and 17th, with periods up to 24 seconds, but the swell height is only 1ft to 3ft, so it’s not going to produce anything rideable. It’s a flat spell.
So, the takeaway: if you’re an experienced surfer, get on it Sunday morning, September 6th, early. That’s your window. Everything else in the next two weeks is just background noise.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 19°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 26°C on Mon afternoon, min 21°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 16 | SW 16 | SW 17 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | SSW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 132 | 133 | 295 | 188 | 404 | 651 | 587 | 559 | 674 | 780 | 818 | 1063 | 1620 | 1483 | 726 | 1058 | 860 | 470 | 727 | 803 | 486 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy | off | cross-on | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | cross-on |
High Tide | 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 | 8:19AM1.38m | 7:43PM1.91m | ||||||||
Low Tide | 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 | 1:43PM0.49m | 2:39AM-0.20m | ||||||||
 | |  | | | | | | |  | |  |  | | | | | | | | | |
 | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 22 | 22 | 20 | 23 | 23 | 21 | 24 | 24 | 22 | 21 | 24 | 23 | 25 | 26 | 23 | 25 | 25 | 22 |
Feels °C | 22 | 21 | 20 | 21 | 20 | 21 | 23 | 23 | 21 | 25 | 24 | 23 | 21 | 26 | 22 | 24 | 24 | 22 | 24 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | W 6 | SSW 13 | W 6 | W 6 | SSW 18 | SSW 18 | SSW 17 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | SSW 11 |
| kJ | 33 | 133 | 56 | 62 | 404 | 651 | 587 | 521 | 684 | 780 | 818 | 1063 | 1620 | 1483 | 726 | 1058 | 860 | 470 | 727 | 803 | 486 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SW 16 | SSW 12 | SSW 11 | W 6 | W 6 | SSE 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 9 | WNW 6 | W 12 | SSW 15 | SW 19 | SW 19 | SSW 14 | WNW 6 | SW 18 | W 5 |
| kJ | 95 | 129 | 161 | 140 | 31 | 39 | 397 | 559 | 674 | 469 | 475 | 40 | 7 | 3 | 596 | 58 | 57 | 285 | 11 | 82 | 17 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 10 | SW 17 | SW 15 | SSW 10 | SSE 17 | W 6 | SW 11 | W 5 | W 6 | WNW 6 | WSW 10 | SW 20 | W 12 | WNW 6 | WSW 11 | SW 10 | W 6 | SW 18 | S 22 | SW 16 |
| kJ | 132 | 34 | 295 | 188 | 56 | 99 | 36 | 55 | 16 | 17 | 10 | 42 | 15 | 11 | 10 | 11 | 4 | 6 | 80 | 9 | 129 |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | — | — | — | W 5 | — | — | — | — | — | — | — | WNW 5 | WNW 6 | — | W 6 | WNW 5 | — |
| kJ | — | 22 | — | — | — | — | — | 21 | — | — | — | — | — | — | — | 10 | 10 | — | 6 | 10 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 83 | 86 | 0 | 0 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 86 |
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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