
Surf Forecasts:
Trestles (Uppers) surf forecast from 15 Sep 2026:
- Best quality surf: Thursday 17 Sep, 5AM (local time) - 3ft (0.9m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Monday 21 Sep, 5AM (local time) - 3ft (0.9m), 17s period, SW swell with 487 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 11PM (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 Wednesday (Sep 16) at 11PM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.4m and 9s. 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 0.9m 17s and forecast to arrive on Monday (Sep 21) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 9s period and expected on Wednesday (Sep 16) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 16th Sep) | 2.5ft (0.8m) 16s |
| Best Surf | 5AM (Thu 17th Sep) | 3ft (0.9m) 16s |
| Most Powerful | 5AM (Mon 21st Sep) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a long, hard look at what we've got cooking for Trestles (Uppers) over the next couple of weeks.
Right off the bat, I'll be straight with you—this is a tough stretch. We're looking at a real flat spell to kick things off. The first few days are basically a write-off. Monday the 14th and Tuesday the 15th are showing tiny 2ft swells from the SW with cross-onshore winds, and the energy is weak (308). The water’s running a lot warmer than usual for this time of year at 73°F, but that doesn't help the surf. Those are days to leave the board in the car.
We start seeing a little pulse building around Thursday the 17th. The swell bumps up to 3ft from the SSW, but it's still messy with a cross-onshore wind chopping things up. The energy is moderate (469), but the quality just isn't there. This pattern of marginal, mostly poor surf drags on through the end of the week and into the next. The swell hangs around 3ft from the SW through the 21st, but the winds are fickle, often swinging cross-onshore. The wave comment keeps calling it "marginal" at best.
The standout window, if you can call it that, is a bit later. Look at the 19th of September, Saturday morning. The swell is still small at 3ft from the SW, but the wind turns light and variable, going "on." The combined energy bumps up to a moderate 513, and the period is a nice long 18 seconds. That long-period groundswell will wrap in and, on a point like Uppers, it could produce a few clean, lined-up waves. The crowds will be inevitable here, but for a point break that handles that swell direction well, it’s the closest we get to a sparkle. It’s the best on offer, but keep your expectations in check; it’s not a day to call in sick for.
After that, we fade back into the same old story. Through the last week of September, it’s small 2ft to 3ft surf with onshore or cross-onshore breezes. The energy drops back off (300-200 range), and the period gets shorter, meaning weaker, sloppier waves. There's a brief morning on the 29th with a light offshore breeze (3 mph from the SW) and a 2ft swell with a 16-second period, which could be clean but tiny. That’s a long way off, though, and given the pattern, it’s hard to get excited.
So really, for the next 16 days, there are no true standouts. Saturday the 19th morning is the only time the stars align for a session that might be worth paddling out for. The rest is a waiting game. Keep the wax dry.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 18°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 19°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 16 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 |
Wave Graph | ||||||||||||||||||||
150 | 147 | 127 | 127 | 114 | 386 | 240 | 402 | 284 | 246 | 305 | 303 | 303 | 234 | 379 | 375 | 375 | 455 | 455 | 358 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | on | cross-on | cross-on | on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | cross-on | on | cross |
High Tide | 11:59PM1.17m | 11:38AM1.58m | 00:58AM0.99m | 12:07PM1.48m | 2:45AM0.87m | 12:46PM1.38m | 2:20PM1.29m | 7:59AM1.06m | 4:25PM1.30m | 7:35AM1.13m | 5:38PM1.39m | |||||||||
Low Tide | 5:59PM0.22m | 5:16AM0.57m | 6:51PM0.30m | 5:28AM0.72m | 8:00PM0.38m | 5:12AM0.84m | 9:44PM0.41m | 11:29PM0.35m | 9:58AM1.05m | 00:26AM0.26m | 11:54AM0.95m | 1:02AM0.17m | ||||||||
— | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | |
6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 19 | 21 | 21 | 19 | 21 | 22 | 20 | 22 | 23 | 21 | 23 | 22 | 20 |
Feels °C | 22 | 21 | 22 | 21 | 21 | 21 | 20 | 20 | 21 | 20 | 19 | 21 | 21 | 20 | 22 | 23 | 23 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | W 6 | SW 18 | SW 18 | W 7 | W 7 | W 7 | W 7 |
118 | 57 | 56 | 57 | 32 | 386 | 240 | 402 | 284 | 246 | 305 | 303 | 303 | 30 | 379 | 375 | 58 | 103 | 96 | 102 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | SSE 9 | S 9 | SSW 9 | SW 21 | SW 21 | SSW 14 | SSW 13 | SSW 13 | W 6 | W 6 | SW 18 | SW 18 | SW 18 | SW 17 |
150 | 147 | 127 | 122 | 88 | 11 | 26 | 42 | 25 | 160 | 154 | 163 | 141 | 101 | 36 | 37 | 375 | 455 | 455 | 358 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | SSE 9 | W 5 | SW 13 | SW 21 | S 12 | SW 9 | W 6 | S 11 | SW 19 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
40 | 38 | 37 | 127 | 114 | 28 | 9 | 43 | 160 | 25 | 29 | 23 | 20 | 234 | 98 | 95 | 85 | 48 | 50 | 52 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSW 8 | — | — | W 6 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | 28 | — | — | 15 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 88 | 64 | 64 | 89 | 21 | 88 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 83 | 86 | 0 | 86 | 86 | 25 |
Best forecast wave conditions in Orange County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










