
Surf Forecasts:
Trestles (Uppers) surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 5AM (local time) - 4.5ft (1.3m), 11s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 2AM (local time) - 5ft (1.6m), 11s period, SSW swell with 615 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 5AM (local time) - 4.5ft (1.3m), 11s 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 Tuesday (Sep 08) at 5AM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.6m and 14s. Another secondary swell of 0.5m and 4s 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 1.6m 11s and forecast to arrive on Tuesday (Sep 08) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 8th Sep) | 4.5ft (1.3m) 11s |
| Best Surf | 5AM (Tue 8th Sep) | 4.5ft (1.3m) 11s |
| Most Powerful | 2AM (Tue 8th Sep) | 5ft (1.6m) 11s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about the surf for the next couple of weeks down at Trestles. It’s a bit of a slow grind, so keep your expectations in check. We’re looking at a long stretch of small, weak swell and onshore wind. It’s going to be a test of patience more than anything. There’s a real gap in quality surf coming up.
First up, Monday the 7th, and honestly, it’s a write-off. We’ve got a SSW swell pushing 6ft at Trestles, but it’s messy. There’s a cross-shore WNW breeze at 25 km/h, and the water is a much warmer than normal 73°. The energy is there, moderate at 894, but it’s all chop and no shape. It’s a poor surf day, full stop.
Tuesday the 8th isn't much better. The swell drops to a weak 3ft at 10 seconds, and it’s still cross-onshore. Very marginal. Wednesday the 9th is similar, with a tiny 2-2ft swell, but at least the period stretches out to a long 16 seconds. The wind does go light and offshore for the afternoon, but with that little energy, 421 to 446, there’s just nothing to push it. It’s more of a pond paddle than a surf.
Thursday the 10th and Friday the 11th see the swell bump back to a knee-high 3ft, but the wind is still sitting cross-onshore from the south. The period stays around 15-17 seconds, but we just can’t get clean conditions. The energy is moderate at best, dropping from 649 down to 366. It’s poor.
From Saturday the 12th all the way through to Sunday the 20th, we are in a rut. The swell drops off to waist-high at best, and the direction swings around to the west, which isn’t ideal for Uppers. The period stays long, but the size just isn’t there. We’re looking at a solid stretch of days with energy readings in the 250 to 600 range. It’s a lot of mushy, weak lines. There will be a persistent light cross-onshore breeze, though there are a few windows on the 13th, 15th, and 17th where it goes glassy. But with 1ft to 3ft of swell, it’s barely surfable.
We finally see a slight pulse of better energy around Monday the 21st and Tuesday the 22nd. The swell fills back in to around 3ft from the SSW with a 17-18 second period. The wind stays light, and for a moment it looks like Trestles (Uppers) might actually come alive. The energy readings pick up to a moderate 685 and 673. It’s a small window, but these last two days are the best of a pretty poor bunch. Considering the alternative, this is the standout, but it’s only for the most dedicated. This long-period groundswell is going to be tricky—it might be breaking a bit too straight for Uppers, so keep your eyes peeled if it holds.
So, in short, we’ve got a long, flat, and bumpy ride ahead. The waves are small, the winds are mostly poor, and it’s going to take a lot of persistence to find any kind of rideable wave. The only real hope is that final push at the end. It’s looking like a stretch for the die-hards.
Stay patient, Rusty out.
Short Range ForecastMostly dry. Warm (max 29°C on Tue morning, min 23°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Thu night, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 11 | SSW 13 | SSW 13 | SSW 10 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | W 8 | SW 19 | W 10 |
Wave Graph | |||||||||||||||||||
615 | 227 | 180 | 135 | 214 | 278 | 419 | 553 | 502 | 483 | 349 | 314 | 309 | 214 | 164 | 160 | 111 | 95 | 154 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 8:19AM1.38m | 7:43PM1.91m | 8:47AM1.49m | 8:28PM1.91m | 9:17AM1.59m | 9:10PM1.83m | 9:46AM1.66m | 9:50PM1.71m | 10:15AM1.70m | 10:31PM1.55m | 10:44AM1.70m | 11:13PM1.36m | |||||||
Low Tide | 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 | 4:33PM0.14m | 4:33AM0.24m | 5:15PM0.16m | 4:56AM0.41m | ||||||
— | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 29 | 29 | 27 | 28 | 29 | 24 | 26 | 26 | 23 | 23 | 23 | 21 | 22 | 22 | 20 | 22 | 23 | 21 |
Feels °C | 27 | 29 | 27 | 28 | 29 | 29 | 26 | 26 | 27 | 24 | 23 | 22 | 22 | 21 | 21 | 22 | 22 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 6 | W 6 | W 7 | W 8 | W 8 | W 10 |
615 | 227 | 180 | 132 | 214 | 278 | 419 | 553 | 502 | 483 | 349 | 314 | 309 | 48 | 50 | 76 | 111 | 95 | 154 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SSW 13 | SSW 13 | SSW 13 | SSW 8 | SSW 12 | SSW 12 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
50 | 204 | 154 | 135 | 64 | 119 | 82 | 15 | 16 | 25 | 37 | 36 | 35 | 214 | 164 | 160 | 88 | 87 | 84 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 16 | SSW 13 | SSW 8 | W 5 | S 12 | SSW 12 | SSW 11 | S 10 | SSW 10 | S 9 | WSW 14 | S 9 | S 8 | SW 19 | SW 19 | SW 19 |
50 | 80 | 81 | 130 | 133 | 37 | 10 | 72 | 46 | 39 | 18 | 21 | 15 | 41 | 14 | 13 | 58 | 94 | 129 | |
Wind waves Height (m) Direction Period (s) | WNW 4 | WNW 4 | WNW 3 | W 4 | — | W 4 | — | — | — | — | SSW 7 | — | — | — | — | — | — | — | — |
8 | 6 | 6 | 15 | — | 8 | — | — | — | — | 9 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 36 | 86 | 74 | 86 | 86 | 64 | 64 | 64 | 64 | 83 | 88 | 64 | 83 | 86 | 15 | 66 | 86 | 25 |
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.










