Surf Forecasts:
Trestles (Uppers) surf forecast from 28 Aug 2026:
- Best quality surf: Friday 28 Aug, 2AM (local time) - 2ft (0.6m), 18s period, SSW 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★+): Friday 28 Aug, 2AM (local time) - 2ft (0.6m), 18s 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 2AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.9m and 10s. 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 cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 13s period and expected on Monday (Aug 31) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 28th Aug) | 2ft (0.6m) 18s |
| Best Surf | 2AM (Fri 28th Aug) | 2ft (0.6m) 18s |
| 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
G'day, I'm Rusty. Let's have a look at what's on the cards for Trestles (Uppers) over the next couple of weeks.
Right now, the water temp is sitting at 73°, which is much warmer than normal for this time of year – a good sign you can leave the thick wetsuit at home.
Alright, so we've got a bit of a flat spell to start. There's nothing worth paddling out for from Thursday the 27th of August through to Tuesday the 1st of September. It's pretty much all marginal or poor surf, with light onshore breezes and small, weak swell. Not worth the drive.
Things start to show a little pulse from Wednesday the 2nd of September. Still not a standout, but we see the swell building a touch. Wednesday morning brings a 4ft S swell with a 12-second period, light onshore wind, and moderate energy (582). The afternoon gets a bit better: 4ft from the SSW, period bumping to 13 secs, but the wind swings cross-onshore, making it choppy.
Thursday the 3rd of September sees a similar size – 5ft SSW swell all day, periods around 14 seconds. Morning has light cross-onshore wind and a bit of ripple, but it's got decent energy (862). The afternoon stays the same size but the wind picks up a notch, making it a bit messy. It's marginal at best.
Friday the 4th of September is a tease. The morning glass off with a 5 km/h WSW wind is the best wind we've seen. Swell is 3ft from the SSW, period 17 seconds, and the energy is up at 844. If you can get out early, it might be your best bet – that long-period groundswell will have some push, but watch out, it might be a bit too lined up for the beach. The afternoon goes cross-onshore and turns to junk.
Saturday the 5th and Sunday the 6th are back to ho-hum. 3 to 4ft SSW swell, but cross-onshore winds keep it chopped out. Not worth a session unless you're desperate.
Now, here's the one that catches my eye. Monday afternoon the 7th of September goes glassy. The wind drops to nothing, and it's a 3ft SSW groundswell with a 15-second period and solid energy (469). Conditions will be super clean – if you can get out then, you'll be sliding on a mirror. That's your best window.
Tuesday the 8th of September morning brings a proper score. We're getting a 3ft SSW swell, 14-second period, and for the first time in ages, a clean offshore wind from the NE at 6 mph. That wind will groom the waves beautifully. Energy is pumping at 555. This is the standout of the whole 16-day run. It won't be huge, but those lines will be perfect. Just be aware, crowds are always around here – you'll have company.
The rest of the second week fades. Wednesday the 9th and Thursday the 10th drop off in size and quality, with onshore or cross-onshore winds and only occasional marginal moments. Friday the 11th of September is more of the same – small, messy, and not worth a special trip.
So, in a nutshell: the first few days are dead. There's a brief, average window around the 3rd and 4th, but the real highlight is Tuesday morning the 8th of September. Glassy, offshore, clean lines – that's the one to circle on your calendar. Everything else is pretty forgettable.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 22°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Warm (max 25°C on Sun afternoon, min 21°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 11 | SSW 18 | SSW 16 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 11 | S 11 | S 12 | S 12 | SSW 13 | SSW 12 |
Wave Graph | ||||||||||||||||||||
272 | 204 | 347 | 289 | 867 | 587 | 733 | 706 | 537 | 400 | 321 | 229 | 166 | 198 | 242 | 289 | 350 | 439 | 506 | 447 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | glassy | cross-on | cross | cross | on | cross-on | cross-on |
High Tide | 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 | 12:34PM1.62m | 2:20AM0.88m | |||||||
Low Tide | 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 | 5:52AM0.58m | 8:11PM0.32m | |||||||
— | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | |
7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 2 | — | — |
Temp °C | 28 | 25 | 28 | 28 | 25 | 28 | 27 | 24 | 25 | 25 | 22 | 24 | 24 | 22 | 25 | 25 | 25 | 23 | 24 | 23 |
Feels °C | 31 | 29 | 30 | 30 | 28 | 29 | 27 | 27 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 23 | 22 | 25 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | SSW 16 | S 9 | SSW 17 | SSW 17 | SSW 16 | W 8 | W 8 | W 7 | W 7 | S 12 | SSE 12 | S 11 | S 11 | S 11 | S 12 | S 12 | SSW 13 | SSW 12 |
272 | 153 | 347 | 71 | 867 | 587 | 733 | 160 | 168 | 108 | 131 | 304 | 236 | 151 | 242 | 289 | 350 | 439 | 506 | 447 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SSW 18 | S 9 | SW 14 | S 8 | W 7 | W 9 | SSW 16 | SSW 15 | SSW 14 | S 13 | W 7 | SSW 14 | SSW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SSW 16 | SW 16 |
103 | 204 | 102 | 147 | 32 | 61 | 101 | 706 | 537 | 400 | 350 | 56 | 166 | 198 | 45 | 80 | 111 | 137 | 175 | 278 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 14 | W 8 | SSW 19 | W 7 | S 8 | S 8 | S 9 | S 13 | S 13 | SSW 14 | SSW 14 | SSW 19 | W 5 | SW 18 | W 10 | W 10 | WNW 4 | — | W 4 |
81 | 153 | 32 | 289 | 14 | 20 | 11 | 13 | 90 | 158 | 321 | 229 | 35 | 19 | 50 | 2 | 2 | 6 | — | 5 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — | W 5 | W 5 | WNW 5 | — | WNW 4 | WNW 4 |
— | — | — | — | — | — | — | — | — | — | — | — | 36 | — | 15 | 12 | 39 | — | 6 | 5 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 124 | 0 | 83 | 164 | 20 | 86 | 86 | 86 | 86 | 86 | 1 | 86 | 86 | 0 | 86 | 83 | 35 | 86 | 12 | 12 |
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.











