Surf Forecasts:
Trestles (Uppers) surf forecast from 27 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 11PM (local time) - 4.5ft (1.3m), 11s 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★+): Wednesday 26 Aug, 11PM (local time) - 4.5ft (1.3m), 11s period with S 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 (Aug 26) at 11PM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.6m and 15s. 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 1.0m 12s period and expected on Monday (Aug 31) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 26th Aug) | 4.5ft (1.3m) 11s |
| Best Surf | 11PM (Wed 26th Aug) | 4.5ft (1.3m) 11s |
| 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
Hey, Rusty again. Let’s do this in feet and degrees Fahrenheit so it makes sense in the water.
This 16‑day run at Trestles (Uppers) – same spot, Southern California – is looking pretty flat in terms of quality. The water’s running way warmer than normal – about 72°F, which is 4°F above the long‑term average. That’s the warmest part of the story.
Swell’s mostly coming from the south and south‑southwest, not the west that this reef‑and‑point really wants. Energy readings are all over – most days fall in the moderate range (500–800), but a couple of pulses get up into strong territory. On Thursday September 3rd morning, we see a 6ft swell from the SSW, 14‑second period, and combined energy of 1298 – that’s a decent amount of push. But the wind is cross‑onshore from the W, so it’ll be bumpy. That pulse hangs on into the afternoon, still cross‑onshore. Then on Wednesday September 9th morning, another 5ft SSW swell (13 seconds, energy 987) with a light cross‑onshore breeze – again, not the glass we need.
Every session in the data is flagged as “marginal surf” or “poor surf conditions.” The highest rating is a 2 out of 10, and those few 2‑rated windows – like Thursday morning August 27th (4ft, S, 12 sec), Wednesday morning September 2nd (4ft, S, 11 sec), and the September 3rd morning – are your best bets, but they all have cross‑onshore or onshore wind. No offshore at all. The swell direction’s off, the wind’s never clean, and for a spot that’s “very consistent,” it’s a bummer.
The biggest swell (6ft) might be a handful for beginners, and the chop won’t help. Seasoned surfers might find a few workable waves if they pick the September 3rd morning (that 6ft with a 14‑second interval) but the cross‑onshore wind and wrong‑angle swell mean it’ll be a battle. Crowds are always there, so you’ll have plenty of company. No standout session – honestly, I’d say wait for better.
So: surf exists, but it’s rarely good. If you’re desperate, go Thursday September 3rd morning, but don’t expect much. The warm water is the only highlight.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 21°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 12 | S 11 | S 12 | S 11 | SSW 18 | SSW 16 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | S 12 | S 11 | S 11 | S 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 529 | 317 | 387 | 272 | 204 | 347 | 289 | 867 | 587 | 733 | 706 | 498 | 400 | 321 | 229 | 295 | 389 | 416 | 408 | 350 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | cross | cross-on | on | cross | on | on | glassy | cross-on | cross-on | cross-off |
High Tide | 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 | 11:20AM1.62m | 11:42PM1.26m | 11:53AM1.63m | 00:41AM1.06m | |||||||
Low Tide | 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 | 5:06AM0.26m | 5:52PM0.28m | 5:29AM0.41m | 6:51PM0.30m | |||||||
 |  |  |  | | | |  | | | | | | | | | | | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 26 | 27 | 26 | 29 | 28 | 26 | 27 | 27 | 24 | 25 | 25 | 22 | 24 | 24 | 21 | 24 | 25 | 23 |
Feels °C | 30 | 29 | 28 | 29 | 29 | 30 | 29 | 29 | 28 | 28 | 27 | 25 | 25 | 23 | 24 | 23 | 22 | 23 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 11 | S 12 | S 11 | S 10 | SSW 16 | S 9 | SSW 17 | SSW 17 | SSW 16 | W 8 | W 8 | W 7 | W 7 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 |
| kJ | 529 | 317 | 387 | 272 | 153 | 347 | 71 | 867 | 587 | 733 | 198 | 160 | 100 | 131 | 304 | 295 | 389 | 416 | 408 | 350 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | S 9 | SW 14 | W 10 | W 7 | W 7 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | W 7 | W 6 | SSW 13 | W 5 | SW 18 | SW 18 |
| kJ | 193 | 171 | 132 | 103 | 204 | 102 | 147 | 74 | 68 | 68 | 706 | 498 | 400 | 321 | 57 | 38 | 116 | 9 | 49 | 111 |
Swell 3 Height (m) Direction Period (s) | W 6 | W 7 | W 6 | W 12 | SW 14 | W 8 | SSW 19 | S 8 | W 9 | WNW 9 | S 9 | SSE 13 | S 13 | SSE 12 | SSW 14 | SSW 14 | W 5 | SW 13 | WNW 5 | WNW 4 |
| kJ | 17 | 17 | 20 | 73 | 153 | 51 | 289 | 33 | 27 | 29 | 14 | 60 | 125 | 111 | 229 | 131 | 14 | 44 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 86 | 64 | 88 | 64 | 0 | 86 | 86 | 0 | 79 | 86 | 28 | 86 | 86 | 3 | 86 | 86 | 0 | 83 | 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.
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