Surf Forecasts:
Trestles (Uppers) surf forecast from 28 Aug 2026:
- Best quality surf: Saturday 29 Aug, 5AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 5AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 932 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 8PM (local time) - 2.5ft (0.8m), 16s 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 Friday (Aug 28) at 8PM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.6m and 8s. 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 1.3m 17s and forecast to arrive on Saturday (Aug 29) at 5AM. 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 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 28th Aug) | 2.5ft (0.8m) 16s |
| Best Surf | 5AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
| Most Powerful | 5AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, let’s get into it. It’s a bit of a slow start out there, I won't lie. For the next week or so, we're looking at some pretty lackluster waves. The swell energy is weak to moderate at best, and there’s a heap of cross-onshore wind messing things up. It’s gonna be a waiting game.
Right now, this Friday the 28th, we’ve got some chest-high lines at Trestles (Uppers) with a long period from the SSW. The water’s sitting at 74°, which is well above normal for this time of year – you might not even need a spring suit. But, and it’s a big but, the surf is marginal and the wind is light and on it. It’s not a complete write-off for a dawn patrol if you’re desperate for a paddle, but don’t expect any fireworks.
The weekend into early next week doesn't offer much hope either. Saturday and Sunday stay small, around the 3ft mark, with light but mostly onshore or cross-onshore winds. The energy is moderate but the quality is just not there. Monday drops off a bit, and we're looking at a stretch of poor conditions with some onshores kicking up chop. The swell period drops too, losing that nice long-period punch.
We’re going to have a real dry spell from around Tuesday the 1st well into the following week. There will be little waves on offer, but they’ll be poor quality with cross-onshore breezes and very weak energy readings, sometimes down in the 300-400 range. It’s a flat, frustrating stretch. If you’re a kitesurfer, this might be your window, because the surf setup isn't doing anyone any favors.
Things start to look a little more interesting around Thursday the 3rd, with the swell energy picking up a bit to 657-795. Still, we're just getting a bump to around 3ft, and the wind remains a problem. I'd call it a slight improvement, but not a green light.
Friday the 4th and Saturday the 5th see a similar story: moderate energy, some SSW groundswell, but the wind is still cross-onshore. It'll be a bit better on Friday morning with a light onshore wind, but the consistency is poor.
As we push into the second week, the forecasts get a little more speculative, but there’s a glimmer of hope on the horizon. Starting around the 11th and 12th of September, the models are showing a solid SSW pulse. That 11th Friday afternoon, we're looking at a jump in size with the swell height pushing past 5ft and the energy finally getting strong, around 1225. The wind will be cross-onshore but moderate. The following Saturday morning, it looks similar with 5ft+ swell and moderate energy at 1043. This is the standout of the whole run, but the wind will be the wildcard. It's been a long, slow period, so a bump like this could be worth the wait, but don't book your flights yet.
The real takeaway: we’re in a poor stretch. The consistency is low, and the winds keep spoiling what little swell we get. Hang tight, save your energy for that push around the 11th and 12th. It’s the only thing on the board that looks like it might deliver.
Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 21°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 21°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | SSW 16 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | SSW 14 | S 11 | S 11 | S 10 | SW 18 | SSW 12 | SSW 12 | SSW 16 | SSW 15 | SSW 13 | SSW 13 |
Wave Graph | |||||||||||||||||||||
347 | 289 | 867 | 684 | 733 | 706 | 537 | 400 | 321 | 259 | 232 | 191 | 149 | 138 | 152 | 160 | 250 | 733 | 382 | 560 | 469 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | on | cross-on | cross-on | cross-on | on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | glassy |
High Tide | 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 | 12:34PM1.62m | 2:20AM0.88m | 1:34PM1.57m | ||||||||
Low Tide | 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 | 5:52AM0.58m | 8:11PM0.32m | 6:14AM0.73m | 9:57PM0.27m | ||||||||
6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 26 | 27 | 27 | 24 | 26 | 26 | 22 | 24 | 24 | 21 | 25 | 25 | 22 | 25 | 26 | 24 | 25 | 25 | 23 |
Feels °C | 31 | 30 | 30 | 29 | 27 | 26 | 26 | 26 | 23 | 24 | 23 | 21 | 24 | 23 | 22 | 24 | 23 | 23 | 24 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | S 9 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | W 8 | W 7 | W 7 | S 13 | S 12 | S 11 | S 11 | S 10 | S 9 | SSW 12 | SSW 12 | SSW 16 | SSW 12 | SSW 13 | SSW 13 |
347 | 71 | 867 | 684 | 733 | 706 | 138 | 103 | 121 | 259 | 232 | 191 | 149 | 138 | 83 | 160 | 250 | 733 | 250 | 560 | 469 | |
Swell 2 Height (m) Direction Period (s) | S 9 | SW 14 | W 10 | W 7 | W 7 | W 7 | SSW 15 | SSW 14 | SSW 14 | W 6 | SSW 14 | W 5 | SSW 13 | SSW 13 | SSW 13 | S 9 | SSW 16 | W 5 | SSW 15 | W 6 | W 6 |
102 | 147 | 75 | 61 | 43 | 131 | 537 | 400 | 321 | 52 | 213 | 27 | 118 | 67 | 93 | 56 | 175 | 14 | 382 | 25 | 47 | |
Swell 3 Height (m) Direction Period (s) | SW 13 | SSW 19 | S 8 | S 8 | S 8 | W 9 | S 13 | S 12 | S 13 | SSW 14 | SW 19 | SSW 13 | W 5 | SW 18 | SW 18 | SW 16 | S 8 | SSE 9 | W 6 | SSW 19 | SSW 18 |
61 | 289 | 32 | 20 | 11 | 41 | 87 | 75 | 81 | 233 | 14 | 154 | 14 | 80 | 152 | 132 | 37 | 25 | 25 | 210 | 408 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WNW 7 | — | — | — | — | — | W 6 | — | — | W 5 | W 5 | W 5 | W 5 | — | — | — | — |
— | — | — | — | 75 | — | — | — | — | — | 36 | — | — | 19 | 16 | 13 | 13 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 151 | 3 | 85 | 86 | 86 | 86 | 143 | 0 | 86 | 86 | 0 | 86 | 86 | 12 | 86 | 86 | 0 | 86 | 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.











