
Surf Forecasts:
Trestles (Uppers) surf forecast from 5 Sep 2026:
- Best quality surf: Sunday 6 Sep, 5AM (local time) - 6ft (1.8m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 11AM (local time) - 6ft (1.9m), 14s period, S swell with 1,342 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 5AM (local time) - 6ft (1.8m), 14s 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 Sunday (Sep 06) at 5AM. The primary swell is predicted to be 1.8m and 14s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.5m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trestles (Uppers) in the next 16 days are 1.9m 14s and forecast to arrive on Sunday (Sep 06) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 6th Sep) | 6ft (1.8m) 14s |
| Best Surf | 5AM (Sun 6th Sep) | 6ft (1.8m) 14s |
| Most Powerful | 11AM (Sun 6th Sep) | 6ft (1.9m) 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 cooking for Trestles (Uppers).
We’ve got a bit of a slow start, but the good news is there’s a solid window of quality surf coming up, and it’s all focused on this one spot. The water is sitting at a toasty 74°F, which is a massive 7°F warmer than usual for this time of year. You’re not gonna need a wetsuit, that’s for sure.
The first couple of days are a write-off. Saturday the 5th is a mess with a light cross-onshore breeze and small, choppy conditions. Not worth paddling out. Sunday the 6th is where it starts to get interesting. The morning brings a clean 6ft swell from the S with a 14-second period, and a nice cross-offshore wind from the N at 9 mph. That’s prime for Trestles. The wave energy is pumping at 1421, so you’ll feel the push. This is the standout session for the whole forecast – Sunday morning is the call. The afternoon stays clean but the wind swings cross-shore, so morning is your window.
Monday the 7th and Tuesday the 8th are a write-off again with choppy, onshore winds and poor quality. The swell drops and the wind is all wrong. Just don’t bother.
Then, a real treat. Wednesday the 9th morning. It’s glassy. A 3 mph SW wind, almost nothing, and a 4ft SSW swell. The combined energy is 522, so it’s moderate, but the glassy conditions will make it feel like a million bucks. The swell period is a short 10 seconds, so it’s a bit of a windswell, but when it’s that clean, you don’t care. This is the second best option, but it’s a close second. The afternoon gets a bit of an onshore kick and a tiny 2ft swell with a very long 16-second period, which might be too straight for the beach break, but the point can handle it.
From Thursday the 10th onwards, the swell drops off a cliff. The rest of the 16-day window is a slow, sad decline. We’re talking 1ft to 3ft south swells with marginal or poor conditions. The wave energy dips to 157 or so by the 13th of September. There’s a glimmer of hope around the 20th of September with some 3ft SW swell and very long periods (17-18 seconds), but the wind is onshore or cross-on, and the energy is still weak. Not worth planning a trip around, but keep an eye on it. The long-range stuff is always a bit of a guess.
So, bottom line: Sunday morning the 6th is the absolute winner. Wednesday morning the 9th is a close second if you can get out for a glassy session. Everything else is a flat spell. This is a classic case of a short, sharp window of goodness, so don’t sleep on it.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 27°C on Mon morning, min 22°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Tue morning, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 14 | S 13 | SSW 16 | S 14 | S 13 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | SSW 13 | SSW 11 | SSW 10 | SW 16 | SW 17 | SSW 17 | SW 16 | SSW 16 | SW 16 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
627 | 806 | 673 | 1342 | 1155 | 711 | 1162 | 980 | 486 | 828 | 721 | 334 | 250 | 278 | 419 | 498 | 502 | 430 | 349 | 318 | 309 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-off | cross | cross | cross-on | cross-on | cross-off | cross-on | cross | glassy | glassy | on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 4:42PM1.62m | 7:24AM1.14m | 5:56PM1.74m | 7:51AM1.26m | 6:54PM1.85m | 8:19AM1.38m | 7:43PM1.91m | 8:47AM1.49m | 8:28PM1.91m | 9:17AM1.59m | 9:10PM1.83m | 9:46AM1.66m | 9:50PM1.71m | ||||||||
Low Tide | 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 | 2:28PM0.34m | 3:11AM-0.15m | 3:10PM0.23m | 3:40AM-0.05m | 3:52PM0.16m | 4:08AM0.08m | |||||||
6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:30 | — | — | |
— | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:01 | — | |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 24 | 26 | 25 | 27 | 26 | 25 | 29 | 29 | 27 | 28 | 29 | 25 | 26 | 26 | 23 | 25 | 25 | 22 |
Feels °C | 24 | 25 | 23 | 24 | 27 | 26 | 27 | 25 | 23 | 27 | 25 | 25 | 28 | 29 | 27 | 26 | 26 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 14 | S 13 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | SSW 13 | SSW 11 | SSW 10 | SSW 10 | SW 10 | SSW 17 | SW 16 | WSW 8 | WSW 7 | SW 15 | SW 15 |
627 | 806 | 673 | 1342 | 1155 | 711 | 1162 | 980 | 486 | 828 | 721 | 334 | 250 | 245 | 184 | 498 | 502 | 144 | 118 | 318 | 309 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SW 20 | W 12 | S 12 | SW 19 | SW 19 | SSW 14 | SW 18 | SW 18 | W 5 | SW 16 | SW 16 | SW 17 | SW 9 | SW 11 | SSW 16 | SW 16 | SSW 10 | WSW 16 |
512 | 475 | 654 | 15 | 3 | 472 | 58 | 57 | 341 | 80 | 81 | 11 | 214 | 278 | 419 | 101 | 220 | 430 | 349 | 20 | 50 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | WSW 12 | W 13 | SW 20 | W 12 | WSW 10 | SW 10 | SW 11 | SW 18 | SSW 21 | SW 22 | SSW 13 | SSW 13 | W 4 | SSW 12 | S 12 | SSW 12 | SSW 11 | SSW 10 | W 18 | S 10 |
48 | 91 | 3 | 15 | 3 | 11 | 4 | 4 | 50 | 44 | 18 | 93 | 58 | 3 | 81 | 72 | 46 | 39 | 20 | 24 | 16 | |
Wind waves Height (m) Direction Period (s) | W 4 | — | W 11 | W 10 | W 11 | WNW 4 | W 6 | WNW 3 | W 4 | WNW 5 | WNW 4 | — | — | — | W 5 | — | WNW 3 | WNW 4 | W 7 | W 7 | W 6 |
3 | — | 57 | 49 | 55 | 9 | 16 | 12 | 8 | 6 | 13 | — | — | — | 2 | — | 7 | 16 | 131 | 104 | 73 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 74 | 86 | 12 | 0 | 12 | 12 | 12 | 86 | 0 | 12 | 86 | 0 | 0 | 64 | 0 | 86 | 86 | 3 | 64 | 86 | 78 |
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.










