
Surf Forecasts:
Trestles (Lowers) surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 11PM (local time) - 3.5ft (1.1m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 30 Jul, 5PM (local time) - 4.5ft (1.4m), 14s period, S swell with 813 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 11PM (local time) - 3.5ft (1.1m), 16s 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 (Jul 29) at 11PM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.9m and 16s. 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 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 29th Jul) | 3.5ft (1.1m) 16s |
| Best Surf | 11PM (Wed 29th Jul) | 3.5ft (1.1m) 16s |
| Most Powerful | 5PM (Thu 30th Jul) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
Hey folks, Rusty here. Gotta be straight with you – the next couple of weeks are looking pretty flat and quiet around Trestles (Lowers). We’ve got a bit of a lull on our hands, but let’s see what’s actually worth paddling out for.
The action kicks off Wednesday morning, July 29th, with a small, long-period groundswell filling in. We’re looking at a clean 4 ft from the SSW with a 16-second period, which is a proper long-period groundswell. The winds are light and onshore, so it’s not going to be glassy, but the water is a toasty 73°, which is much warmer than normal for this time of year. The combined energy is moderate at 870, so there’s some push but it’s not a powerhouse. The same day afternoon sees a slight bump to 4 ft from the same direction, with the energy cranking up to a moderate 1016. The wind swings to a light WSW, still onshore, so it’ll be a bit bumpy. This is a reef-and-beach setup, so the long period might make it a bit straight at the beach section, but the points could have some shape.
Thursday the 30th stays small, with morning coming in at 3 ft from the SSW, 15-second period, and a light cross-onshore wind. The energy is moderate at 808. The afternoon sees a little more size at 5 ft from the S, but the period drops to 14 seconds, and the wind is still light cross-onshore. The conditions are described as “marginal” with small wind ripples, so it’s not going to be a clean session by any stretch.
Friday the 31st through the whole first week of August is a real struggle. Swell drops to 2 ft to 3 ft, periods are short to moderate, and the winds are either onshore or cross-onshore with a gentle breeze, making things choppy. The combined energy drops into the 100-300 range, which is weak. By the weekend, August 1st and 2nd, we’re looking at 2 ft to 3 ft from the SSW or SW, with a 13-14 second period, but the wind is messing up any chance of a clean wave. The breaks are rated as “poor” or “marginal,” and honestly, there’s nothing to get excited about.
The entire second week, from August 4th through the 13th, is a flat spell. Swell heights are consistently 1 ft to 3 ft from the SW or SSW. The periods are all over the place, from 13 seconds up to a very long 20 seconds on August 10th afternoon, but with such tiny wave heights, that long period just means a long wait between ankle-biters. The combined energy is weak, mostly below 400, and the winds are light and onshore or cross-onshore. The conditions are consistently described as “poor” or “marginal.” For a spot that’s “very consistent,” this blank run is a bit of a bummer, but it happens.
The only real standout, and I’m using that term loosely, is the first Wednesday and Thursday, July 29th and 30th. The 5 ft afternoon on Thursday from the S is the biggest we’ll see, but the cross-onshore wind and the “marginal” surf forecast mean it’s not going to be great. If you’re desperate, the morning of the 29th with the 4 ft groundswell and the 16-second period might offer a few clean lines before the wind picks up, but you’ll need to pick your tide and be patient. The SSW swell direction is right on the optimum for Trestles, but the size and wind just aren’t cooperating.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri morning, min 20°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 21°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 16 | SSW 16 | SSW 16 | SSW 15 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
612 | 724 | 596 | 358 | 813 | 694 | 588 | 269 | 257 | 204 | 173 | 119 | 91 | 88 | 83 | 82 | 91 | 91 | 84 | 77 | 75 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | on | cross |
High Tide | 10:24AM1.19m | 9:27PM1.80m | 10:49AM1.24m | 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 | |||||||
Low Tide | 3:21PM0.61m | 4:36AM-0.13m | 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 | ||||||||
6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 7:52 | — | — | 7:51 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 24 | 25 | 22 | 26 | 26 | 24 | 26 | 27 | 24 | 25 | 25 | 23 | 25 | 25 | 22 | 24 | 24 | 22 |
Feels °C | 24 | 23 | 23 | 24 | 25 | 24 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 25 | 24 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 10 | W 7 | W 7 | W 7 | W 6 | W 6 | W 6 | SW 15 | SW 15 | SW 15 |
612 | 724 | 596 | 358 | 813 | 694 | 588 | 269 | 257 | 204 | 173 | 74 | 21 | 23 | 25 | 19 | 18 | 18 | 84 | 77 | 75 | |
Swell 2 Height (m) Direction Period (s) | SSE 15 | S 15 | S 15 | S 13 | W 7 | W 6 | W 7 | S 11 | S 10 | W 7 | W 7 | S 13 | S 12 | S 12 | SW 13 | SW 13 | SW 13 | SW 12 | W 6 | W 6 | SW 13 |
225 | 272 | 343 | 276 | 23 | 13 | 23 | 192 | 94 | 35 | 33 | 119 | 75 | 75 | 83 | 82 | 82 | 53 | 11 | 11 | 40 | |
Swell 3 Height (m) Direction Period (s) | W 7 | W 6 | W 6 | S 16 | S 10 | — | S 9 | W 7 | W 7 | S 10 | S 9 | W 7 | SW 14 | SW 13 | SSW 12 | SSW 11 | SW 16 | SW 16 | SW 12 | SW 12 | W 6 |
33 | 20 | 12 | 174 | 48 | — | 44 | 23 | 14 | 67 | 40 | 21 | 91 | 88 | 46 | 23 | 91 | 91 | 35 | 36 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 89 | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 24 | 89 | 85 | 19 | 83 | 85 | 65 | 89 | 89 | 19 |
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.










