
Surf Forecasts:
Trestles (Lowers) surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 11PM (local time) - 3ft (0.9m), 16s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 2AM (local time) - 2.5ft (0.7m), 18s period with SW 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 (Aug 12) at 2AM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.5m and 12s. 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 1.2m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 12th Aug) | 2.5ft (0.7m) 18s |
| Best Surf | 11PM (Thu 13th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s look at the waves on the calendar for the next couple of weeks. It’s gonna be a real test of patience, I’ll tell you that right now.
The short version? We’ve got a long stretch of small, wind-affected surf ahead. The good news is there’s a pulse of slightly better energy late in the window, but we’ve got to earn it with a lot of flat, grovelly days first. The water is running *much warmer than normal* for this time of year at a warm 74.3° – you might not even need a spring suit at dawn, honestly.
The first real option isn’t until Thursday the 13th, and even then it’s marginal. Trestles (Lowers) is a beach and reef set-up that’s very consistent and exposed to the SW. On Thursday morning, we’re looking at a small 2.3ft SW swell with a 16-second period. The energy is weak at 340, and while the wind is light and onshore, the call is marginal at best. Thursday afternoon bumps up slightly to 2.9ft SW, but the onshore breeze picks up, making it messy.
Friday the 14th and Saturday the 15th are more of the same story. We see a touch more energy on Friday afternoon, hitting 699, but the swell stays tiny at 2.6ft from the SSW. It’s still marginal and bumpy. Saturday afternoon has the biggest swell of the week at 3.9ft from the SSW at 16 seconds, and the energy is moderate at 718. But that WSW cross-on wind keeps it from being any good. It’s a frustrating tease.
We slide into the start of next week with nothing but poor conditions. The swell drops off, the wind stays cross-on, and it’s just a lot of small, choppy mush. Tuesday the 18th and Wednesday the 19th are essentially write-offs. There’s a solid three-to-four day stretch here with nothing worth paddling out for. You’re better off doing a few maintenance laps on the longboard or just waiting it out.
Heading into the weekend of the 23rd and 24th, there’s still nothing doing. The swell’s tiny and onshore, with light winds but junk surf. It’s a real blank run for the area, which does happen.
But hold on. The light at the end of the tunnel is the 26th of August, which is a full week and a half away, so take this with a grain of salt. That Wednesday is the standout in this whole forecast. The morning shows a 2.9ft swell from the south with an 18-second period and moderate energy at 873. The wind is offshore, WSW at 6 mph, which will keep it glassy. It’s still small, sure, but with that long-period groundswell and clean conditions, it could set up some proper little barrels on the reef at Lowers.
Then, the afternoon of the 26th is the real kicker. The swell mixes in a secondary S and SSE component, and the combined energy jumps to a strong 1134. The period stays at a solid 16 seconds, and while the height is still a modest 2.9ft, the wind is a light WNW cross-on. That’s a promising combo. It's late in the game and not a guaranteed classic, but it’s the only day I’d genuinely be excited about. It’s looking like the pick of the bunch, for sure, but the low period and smaller size might mean it’s a bit softer than a true standout.
Other than that, the forecast is a whole lot of nothing. Hang tight, fellas.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 24°C on Tue afternoon, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 19°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph | ||||||||||||||||||||
252 | 316 | 195 | 264 | 306 | 255 | 358 | 280 | 302 | 404 | 807 | 417 | 683 | 666 | 551 | 443 | 437 | 367 | 264 | 357 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 8:37PM2.07m | 9:55AM1.40m | 9:22PM2.03m | 10:28AM1.47m | 10:06PM1.92m | 11:02AM1.53m | 10:48PM1.74m | 11:37AM1.55m | 11:31PM1.52m | 12:11PM1.55m | 00:18AM1.28m | 12:47PM1.51m | 1:15AM1.05m | |||||||
Low Tide | 2:30PM0.50m | 3:44AM-0.35m | 3:17PM0.40m | 4:19AM-0.29m | 4:04PM0.34m | 4:52AM-0.17m | 4:50PM0.32m | 5:23AM-0.01m | 5:38PM0.33m | 5:51AM0.17m | 6:30PM0.37m | 6:17AM0.37m | 7:30PM0.43m | |||||||
— | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | |
7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 22 | 23 | 23 | 21 | 22 | 22 | 19 | 21 | 22 | 19 | 22 | 23 | 20 | 23 | 23 | 21 | 23 | 24 | 22 |
Feels °C | 24 | 25 | 24 | 23 | 22 | 23 | 22 | 20 | 21 | 21 | 19 | 23 | 22 | 21 | 24 | 22 | 21 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
118 | 316 | 195 | 264 | 306 | 255 | 358 | 280 | 217 | 404 | 807 | 417 | 683 | 666 | 551 | 443 | 437 | 367 | 264 | 357 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 12 | SSW 11 | SSW 12 | SSW 10 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | W 4 | SW 14 | S 11 | W 5 | S 11 | S 10 | W 5 | S 10 | SSW 18 | W 6 |
252 | 68 | 42 | 49 | 35 | 62 | 61 | 51 | 302 | 214 | 5 | 191 | 21 | 13 | 9 | 8 | 19 | 8 | 63 | 30 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 13 | SW 13 | SW 13 | S 12 | SW 12 | SSW 21 | SSW 20 | SSW 9 | W 12 | S 12 | S 11 | W 11 | S 11 | W 10 | W 10 | S 10 | W 10 | SW 10 | S 10 |
75 | 44 | 44 | 61 | 27 | 23 | 44 | 149 | 16 | 3 | 44 | 37 | 2 | 20 | 2 | 2 | 8 | 2 | 15 | 7 | |
Wind waves Height (m) Direction Period (s) | WNW 12 | — | W 4 | — | — | — | W 8 | — | W 6 | SSW 11 | W 4 | W 5 | W 5 | — | W 6 | W 5 | — | W 6 | W 6 | — |
48 | — | 2 | — | — | — | 12 | — | 3 | 78 | 8 | 7 | 12 | — | 15 | 20 | — | 22 | 22 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 13 | 85 | 85 | 0 |
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.











