Surf Forecasts:
Trestles (Lowers) surf forecast from 1 Sep 2026:
- Best quality surf: Monday 7 Sep, 11PM (local time) - 18ft (5.5m), 12s period, S swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 2AM (local time) - 20ft (6.0m), 12s period, S swell with 9,561 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 2AM (local time) - 1.5ft (0.5m), 13s period with SSW swell.
Best Forecast Surf Conditions for Trestles (Lowers) this week:
The surf forecast for Trestles (Lowers) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 2AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.7m and 5s. Another secondary swell of 0.5m and 10s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trestles (Lowers) in the next 16 days are 6.0m 12s 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+) | 2AM (Wed 2nd Sep) | 1.5ft (0.5m) 13s |
| Best Surf | 11PM (Mon 7th Sep) | 18ft (5.5m) 12s |
| Most Powerful | 2AM (Tue 8th Sep) | 20ft (6.0m) 12s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the menu for the next couple of weeks at Trestles (Lowers).
Right off the bat, we’ve got a slow start. The first few days are a bit of a write-off, honestly. We’re looking at small, weak swell and cross-onshore winds messing things up. The combined energy is weak, around 242 to 293, and that’s just not enough to get excited about. Tuesday morning through Thursday afternoon are all pretty poor. You’ll be fighting wind ripples and small, gutless waves. The water is a balmy 77°F and feels much warmer than normal for this time of year—about 9°F above average, which is wild. But it doesn’t help the surf.
Friday the 4th is a bit of a tease. The swell bumps up to 3ft from the SSW, but it’s still cross-onshore and choppy, with moderate energy around 719. The morning is a write-off, and the afternoon is only marginal. Not worth rushing out for.
Then, things start to get interesting. Saturday the 5th morning sees a light offshore wind from the SW, and the swell is 3ft from the SSW. The energy jumps to 1059, which is decent. The afternoon gets a bit of a cross-shore wind, but the swell builds to 5ft from the S. Still marginal, but getting there.
Now, here’s the standout. Sunday the 6th is the day. We’ve got proper swell on the way. The morning brings a 8ft S swell with a 15-second period and a light offshore breeze from the NE. The water goes clean. The combined energy is a strong 3067. This is excellent surf, but it’s for experienced surfers. Anything over 8ft at a spot like this demands respect. The afternoon gets even better with a 10ft S swell, still with that long 15-second period, and a light cross-offshore from the NNE. Energy hits 3430. This is pure, clean, powerful groundswell. The long period means it’ll wrap in nicely here, giving you some proper lines and good gaps between sets. This is the best on offer, no question. Just be aware, with “always” crowds here, it’s going to be busy.
Monday the 7th is still pumping. The morning holds 10ft from the S, but the period drops to 13 seconds. Still a solid 2775 energy and clean with a cross-offshore wind. The afternoon gets a bit messy—15ft of swell, but the wind swings to a moderate cross-shore from the WNW, putting a chop on it. The energy is massive at 9224, but the quality is only marginal. It’s a beast, but not the cleanest.
After that, it fades fast. Tuesday the 8th through the rest of the forecast drops into small, weak, and often choppy conditions. We’re looking at mostly 1ft to 3ft swell with cross-onshore winds and low energy, often under 300. There’s a brief window on Thursday the 10th morning with a light offshore and 3ft SSW swell, but it’s only marginal. The second week is a real flat spell. There’s a stretch of days from the 11th to the 16th where it’s all poor or marginal, with tiny waves and weak energy. Not much to write home about.
So, to sum it up: tough start, a golden window on Sunday the 6th and Monday the 7th morning for the experienced crew, then a long, quiet fade out. Keep your eyes on that Sunday—it’s the real deal.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 26mm), heaviest during Sun morning. Warm (max 26°C on Sun night, min 20°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 13 | SSW 13 | SSW 13 | SW 16 | SSW 16 | SW 17 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 13 | S 12 | S 12 |
Wave Graph | |||||||||||||||||||||
116 | 114 | 93 | 132 | 175 | 291 | 188 | 399 | 547 | 587 | 566 | 674 | 512 | 1010 | 1847 | 3067 | 3430 | 4223 | 2775 | 5630 | 9561 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | cross | cross-off | off | cross-off | off | cross-off | cross | cross |
High Tide | 11:53AM1.63m | 00:41AM1.06m | 12:34PM1.62m | 2:20AM0.88m | 1:34PM1.57m | 5:35AM0.88m | 3:06PM1.55m | 6:58AM1.01m | 4:42PM1.62m | 7:24AM1.14m | 5:56PM1.74m | 7:51AM1.26m | 6:54PM1.85m | ||||||||
Low Tide | 6:51PM0.30m | 5:52AM0.58m | 8:11PM0.32m | 6:14AM0.73m | 9:57PM0.27m | 6:35AM0.88m | 11:34PM0.14m | 10:07AM0.94m | 00:38AM-0.01m | 11:51AM0.84m | 1:25AM-0.13m | 12:54PM0.67m | 2:04AM-0.19m | ||||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | |
— | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 13 | 6 | 4 | — | — | — |
Temp °C | 23 | 23 | 20 | 23 | 23 | 21 | 23 | 23 | 20 | 23 | 23 | 21 | 25 | 24 | 24 | 24 | 24 | 26 | 29 | 31 | 29 |
Feels °C | 22 | 21 | 19 | 22 | 21 | 20 | 23 | 22 | 20 | 22 | 23 | 23 | 25 | 24 | 26 | 27 | 28 | 28 | 31 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | W 5 | W 6 | SSW 13 | SSW 12 | SSW 11 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 14 | S 15 | S 15 | S 15 | S 15 | S 15 | S 13 | S 12 | SW 18 |
112 | 78 | 27 | 24 | 149 | 203 | 140 | 399 | 547 | 587 | 566 | 674 | 501 | 1010 | 1847 | 3067 | 3430 | 4223 | 2775 | 3594 | 50 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | S 10 | SSW 12 | S 10 | W 6 | W 6 | SSW 10 | W 6 | W 6 | SSE 15 | S 15 | SSW 16 | SSW 16 | WSW 10 | — | — | — | — | — | — |
116 | 114 | 46 | 106 | 80 | 35 | 37 | 56 | 30 | 54 | 240 | 435 | 512 | 512 | 40 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | W 5 | SW 18 | SSW 13 | SW 16 | SSW 16 | SW 17 | SW 15 | SSW 12 | SSW 11 | SSW 11 | W 6 | W 5 | SW 11 | SW 11 | SW 20 | — | — | — | — | — | — |
14 | 80 | 93 | 132 | 175 | 291 | 188 | 59 | 87 | 78 | 23 | 8 | 46 | 40 | 15 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | S 12 | S 12 |
— | 21 | — | — | 22 | — | — | 35 | — | — | — | — | — | — | — | — | — | — | — | 5630 | 9561 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 85 | 0 | 83 | 85 | 0 | 85 | 85 | 0 | 83 | 85 | 0 | 50 | 19 | 0 | 0 | 0 | 0 | 0 | 85 | 28 |
Best forecast wave conditions in Orange County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Trestles (Lowers) Surf forecast
The above surf forecast table for Trestles (Lowers) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestles (Lowers) can be found by selecting the local surf guide option on the grey menu. Our Trestles (Lowers) 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 (Lowers)) 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 (Lowers) 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 (Lowers) 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.











