Surf Forecasts:
Trestles (Lowers) surf forecast from 31 Jul 2026:
- Best quality surf: Thursday 30 Jul, 11PM (local time) - 4.5ft (1.4m), 14s period, S swell with glassy winds.
- Most powerful swell: Thursday 30 Jul, 11PM (local time) - 4.5ft (1.4m), 14s period, S swell with 813 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 11PM (local time) - 4.5ft (1.4m), 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 Thursday (Jul 30) at 11PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.3m and 5s. 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 1.4m 14s and forecast to arrive on Thursday (Jul 30) 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 (Thu 30th Jul) | 4.5ft (1.4m) 14s |
| Best Surf | 11PM (Thu 30th Jul) | 4.5ft (1.4m) 14s |
| Most Powerful | 11PM (Thu 30th Jul) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
### Imperial Units
Alright folks, Rusty here. Gotta be straight with you – Lower Trestles is looking at a pretty quiet run for a while. Don't get your hopes up just yet.
Right now, we’ve got a bit of a waiting game on our hands. The first real chance to get wet doesn’t pop up until Thursday the 30th of July. It’s not much, but it’s something.
Thursday afternoon, the water’s gonna feel like a bathtub – sitting at a balmy 74°F, which is *much* warmer than usual for this time of year. We’re looking at a little 3ft swell from the SSW, humming along at 15 seconds. That's a touch of long-period groundswell, which Trestles can work with. The wind is light from the WSW at 10 km/h, but it’s a cross-onshore breeze, so it'll put a few ripples on the face. The overall energy is moderate, sitting at 683. Honestly, it’s pretty marginal.
Friday morning the 31st offers a slight bump up to 4ft from the SSW, period easing to 14 seconds. Offshore wind from the WSW at 10 km/h sounds nice, but the data calls it marginal. The energy is still moderate at 646. It’s a tease, really.
After that, things flatline. From Saturday the 1st of August all the way through to Tuesday the 11th of August, it’s a real struggle. Swell drops below 3ft, and the onshore flow is a constant companion. The combined energy dips down to weak levels, like 132 on Monday the 3rd. This stretch is more about floating around than surfing. For a spot that’s usually so consistent, this is a tough run.
There’s a little flicker around Friday morning the 7th of August, with 2ft from the SSW but a *very* long period of 19 seconds. The energy kicks back up to 454 (moderate), but it’s still rated as poor conditions. That kind of period at a beach-and-reef setup like Trestles can actually make it break a bit too straight and fat, so don’t set your watch by it.
The best bet in this whole 16-day window is the morning of Wednesday the 12th of August. We get 2ft from the SW at 18 seconds, with energy at 384. Still moderate, but the wind is a cross-onshore and the conditions are still rated poor. Honestly, if you’re desperate for a paddle, that’s your window, but keep expectations low.
Really, the wisest move is to let this one slide. It's a long, quiet spell.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 20°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 21°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 468 | 674 | 588 | 322 | 261 | 173 | 289 | 119 | 91 | 88 | 83 | 80 | 91 | 91 | 84 | 77 | 75 | 162 | 127 | 125 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | glassy | on | on | cross-on | on | on | glassy | on | on | glassy | cross-on | on | glassy | on | cross-on | glassy |
High Tide | 9:59PM1.76m | 11:17AM1.29m | 10:31PM1.68m | 11:45AM1.34m | 11:06PM1.55m | 12:14PM1.39m | 11:46PM1.37m | 12:48PM1.44m | 00:36AM1.16m | 1:29PM1.48m | 1:54AM0.95m | 2:22PM1.52m | 4:05AM0.83m | |||||||
Low Tide | 3:58PM0.58m | 5:03AM-0.09m | 4:35PM0.55m | 5:29AM-0.02m | 5:17PM0.54m | 5:54AM0.09m | 6:05PM0.53m | 6:19AM0.23m | 7:05PM0.52m | 6:45AM0.38m | 8:25PM0.49m | 7:15AM0.55m | 10:07PM0.40m | |||||||
 |  | | | | | | | | | | | | | |  | | | | | |
 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | 7:51 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 25 | 26 | 24 | 26 | 26 | 24 | 26 | 25 | 23 | 25 | 25 | 22 | 24 | 24 | 22 | 24 | 25 | 22 |
Feels °C | 23 | 23 | 26 | 26 | 27 | 27 | 26 | 26 | 27 | 25 | 25 | 26 | 26 | 23 | 25 | 24 | 24 | 25 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 10 | W 7 | W 7 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 468 | 674 | 588 | 322 | 261 | 173 | 289 | 72 | 33 | 23 | 37 | 29 | 28 | 23 | 18 | 18 | 75 | 162 | 127 | 125 |
Swell 2 Height (m) Direction Period (s) | S 13 | W 5 | S 9 | S 11 | S 10 | W 7 | W 7 | S 13 | S 12 | S 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 15 | SW 15 | W 6 | W 6 | SSW 12 | W 6 |
| kJ | 202 | 5 | 44 | 146 | 69 | 35 | 33 | 119 | 75 | 75 | 83 | 80 | 83 | 54 | 84 | 77 | 12 | 11 | 26 | 6 |
Swell 3 Height (m) Direction Period (s) | W 9 | — | W 7 | W 7 | W 7 | S 9 | SW 15 | SW 13 | SW 14 | SW 13 | SSW 12 | SSW 11 | SW 16 | SW 16 | SW 12 | SW 12 | SW 13 | S 9 | S 9 | S 9 |
| kJ | 2 | — | 14 | 39 | 14 | 39 | 77 | 88 | 91 | 88 | 47 | 23 | 91 | 91 | 22 | 36 | 41 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — |
| kJ | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 19 | 89 | 85 | 0 | 89 | 85 | 0 | 89 | 85 | 0 | 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.
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