Surf Forecasts:
Trestles (Lowers) surf forecast from 14 Jul 2026:
- Best quality surf: Saturday 18 Jul, 8PM (local time) - 3ft (0.9m), 14s period, S swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 11PM (local time) - 3ft (0.9m), 16s period, SSW swell with 447 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 11PM (local time) - 2.5ft (0.7m), 14s period with S 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 Monday (Jul 13) at 11PM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.2m 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 0.9m 16s and forecast to arrive on Monday (Jul 20) at 11PM. 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+) | 11PM (Mon 13th Jul) | 2.5ft (0.7m) 14s |
| Best Surf | 8PM (Sat 18th Jul) | 3ft (0.9m) 14s |
| Most Powerful | 11PM (Mon 20th Jul) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's coming our way.
To be straight with you, the next ten days or so are pretty flat and frustrating. We're looking at a long stretch of small, weak, and mostly onshore slop. From Monday 13th July right through to Wednesday 22nd July, it’s a grind. Wave heights are barely cracking 3ft, with the swell energy bouncing around a meagre (201 to 777) – that’s weak to moderate at best. Winds are cross-on or onshore for almost the entire run, and the period is all over the shop, so don't expect any real push. It’s the kind of window where you’d be better off tuning your fins or taking a road trip. This is a blank run for the area.
Now, hang in there, because things finally get interesting. The standout window is Thursday 23rd July, first thing. Thursday morning looks like the real deal. Trestles (Lowers) is expecting a clean 6ft S swell, with a solid 14-second period pushing in. The combined swell energy jumps to (1259), which is strong and full of power. The kicker is the wind – glassy, dead calm. That’s a massive positive and will make for some truly clean, rippable lines. At 6ft, this is right in the sweet spot for advanced surfers, and the glassy conditions will make it a joy. The swell direction from the south is a good match for the break's optimum. Keep in mind, though, that when the wind backs off and it's this clean, the crowd factor is always high at Trestles.
As we move into the weekend, things hold some size but drop off a touch in quality. Friday 24th and Saturday 25th still have 5ft to 5ft S/SSW swell with moderate energy (1040 to 1262), but the wind swings cross-on, so it’ll get a little lumpy and less perfect than that Thursday morning glass-off. The long-period groundswell will still offer some decent shape, but it's more of a "surfable if you want to" rather than a standout.
Beyond that, into the final days of July, we see the swell pulse fade back down. The energy drops, the heights slip under 3ft, and we’re back into marginal conditions.
So, to wrap it up: hang tight through a lot of small, messy days. Your one true target is the morning of Thursday 23rd July at Trestles (Lowers) for some glassy, powerful waves. That’s the one to plan for.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | W 8 | SW 16 | SW 19 | SW 19 | SW 18 | SW 15 | SW 18 | SW 18 | S 13 | SW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 187 | 213 | 133 | 111 | 194 | 107 | 96 | 161 | 124 | 122 | 125 | 181 | 83 | 136 | 366 | 307 | 407 | 346 | 434 | 318 | 367 |
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 | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | on | on | glassy | on | cross-on | glassy | on |
High Tide | 8:43PM2.11m | 10:25AM1.23m | 9:32PM2.10m | 11:06AM1.29m | 10:19PM2.02m | 11:47AM1.34m | 11:06PM1.86m | 12:29PM1.38m | 11:54PM1.64m | 1:12PM1.41m | 00:44AM1.39m | 1:58PM1.43m | 1:45AM1.14m | ||||||||
Low Tide | 2:28PM0.60m | 4:07AM-0.47m | 3:20PM0.54m | 4:49AM-0.44m | 4:12PM0.50m | 5:29AM-0.35m | 5:04PM0.49m | 6:07AM-0.21m | 5:59PM0.50m | 6:44AM-0.03m | 7:01PM0.53m | 7:19AM0.16m | 8:13PM0.55m | 7:54AM0.37m | |||||||
 |  | | | | | | | | | | | | | | | | | | | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 |
 | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:59 | — | — | 7:58 | — | 7:58 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 20 | 24 | 25 | 22 | 25 | 26 | 24 | 24 | 24 | 22 | 22 | 22 | 20 | 23 | 22 | 20 | 22 | 22 | 21 | 22 |
Feels °C | 24 | 21 | 24 | 24 | 23 | 26 | 26 | 25 | 24 | 23 | 21 | 21 | 21 | 19 | 23 | 22 | 21 | 22 | 21 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | W 6 | W 7 | W 7 | W 8 | W 8 | W 8 | W 7 | W 7 | SW 15 | SW 18 | SW 18 | S 13 | S 12 | S 11 | S 11 | S 10 |
| kJ | 187 | 213 | 133 | 93 | 133 | 27 | 44 | 61 | 124 | 76 | 76 | 53 | 23 | 136 | 366 | 307 | 407 | 330 | 237 | 181 | 127 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SW 19 | S 12 | SW 18 | SW 18 | SSW 13 | SSW 12 | SW 16 | SW 16 | SW 16 | SW 15 | SW 19 | SW 14 | W 6 | S 12 | S 15 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 |
| kJ | 120 | 133 | 76 | 111 | 194 | 67 | 83 | 161 | 122 | 122 | 107 | 181 | 74 | 13 | 41 | 109 | 127 | 346 | 434 | 318 | 367 |
Swell 3 Height (m) Direction Period (s) | SW 19 | S 12 | SW 19 | S 12 | W 5 | SW 17 | SW 16 | S 12 | SSW 12 | SSW 12 | SW 19 | SW 14 | SW 18 | S 11 | WSW 6 | S 11 | SW 13 | WNW 15 | WNW 15 | W 5 | W 6 |
| kJ | 59 | 25 | 58 | 47 | 10 | 107 | 96 | 73 | 48 | 47 | 125 | 74 | 83 | 22 | 11 | 39 | 44 | 45 | 43 | 14 | 27 |
Wind waves Height (m) Direction Period (s) | W 9 | — | W 2 | W 3 | — | — | — | — | — | — | — | SSW 3 | SSW 4 | S 3 | — | — | — | — | W 6 | — | — |
| kJ | 7 | — | 1 | 3 | — | — | — | — | — | — | — | 4 | 4 | 1 | — | — | — | — | 12 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 0 | 85 | 85 | 0 | 83 | 85 | 64 | 83 | 83 | 3 | 89 | 89 | 28 | 83 | 85 | 0 | 85 | 85 | 0 | 85 |
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.
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