Surf Forecasts:
Trestles (Lowers) surf forecast from 19 Jul 2026:
- Best quality surf: Saturday 25 Jul, 11PM (local time) - 3.5ft (1.0m), 20s period, SW swell with glassy winds.
- Most powerful swell: Saturday 25 Jul, 5AM (local time) - 3.5ft (1.0m), 21s period, SW swell with 898 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 11PM (local time) - 2ft (0.6m), 11s 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 Saturday (Jul 18) at 11PM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.6m and 11s. 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 1.0m 21s and forecast to arrive on Saturday (Jul 25) at 5AM. 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+) | 11PM (Sat 18th Jul) | 2ft (0.6m) 11s |
| Best Surf | 11PM (Sat 25th Jul) | 3.5ft (1.0m) 20s |
| Most Powerful | 5AM (Sat 25th Jul) | 3.5ft (1.0m) 21s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
Alright, Rusty here with the lowdown on Trestles (Lowers).
We’re staring at a pretty slow start. The swell is tiny and the wind is mostly onshore or cross-onshore, so it’s not going to be clean. The water is a balmy 71°F, which is much warmer than usual for the summer.
The first real chance to get a wave comes on Saturday, July 25th, and Sunday, July 26th. The swell is from the SW with a long period, 19 to 21 seconds, which is that proper groundswell. The wind is light and on it. The energy is strong, in the 1000 range, so there’s some push. This is the first decent window.
The real standout is the last week of the month, from Monday, July 27th, through Friday, July 31st. The swell size builds from 4ft to a solid 6ft, coming from the SW and S. The period is solid, 14-18 seconds, and the wind is forecast to be light and offshore. That’s the recipe for clean, lined-up waves at Lowers. The energy is very strong, peaking at 1329 on Friday, July 31st. That’s the day to circle. Just know that Trestles is always packed, so you’ll be sharing the lineup.
The days around July 28th and 29th are also good, with 4ft to 4ft swell and light offshore winds.
The outlook fades out on August 1st and 2nd, with the swell dropping and the period shortening, so the quality will go down.
The bottom line: the first week is a wash. The best bet is the stretch from July 27th through July 31st, with July 31st looking like the pick of the bunch. The water is warm, the swell is on, and the wind should cooperate. Get in the water.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Mon morning, min 19°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 21°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 16 | SW 17 | SW 17 | SSW 12 | SSW 15 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 13 | SW 24 | S 13 | SW 21 |
Wave Graph  | ||||||||||||||||||||
 kJ | 379 | 127 | 330 | 424 | 488 | 409 | 367 | 330 | 519 | 474 | 559 | 437 | 394 | 316 | 236 | 204 | 222 | 563 | 475 | 664 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 00:44AM1.39m | 1:58PM1.43m | 1:45AM1.14m | 2:48PM1.44m | 3:09AM0.93m | 3:42PM1.45m | 5:11AM0.84m | 4:40PM1.47m | 7:14AM0.88m | 5:36PM1.51m | 8:16AM0.96m | 6:26PM1.57m | ||||||||
Low Tide | 7:01PM0.53m | 7:19AM0.16m | 8:13PM0.55m | 7:54AM0.37m | 9:43PM0.52m | 8:31AM0.55m | 11:24PM0.42m | 9:18AM0.71m | 00:41AM0.28m | 10:30AM0.81m | 1:32AM0.15m | 11:48AM0.85m | 2:10AM0.05m | |||||||
 |  | | | |  | | | | | | | | | | | | | |  | |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 7:59 | — | — | 7:58 | — | — | 7:58 | — | — | 7:57 | — | — | 7:57 | — | — | 7:55 | — | — | 7:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 23 | 21 | 23 | 23 | 21 | 24 | 24 | 23 | 24 | 24 | 23 | 25 | 26 | 23 | 27 | 27 | 24 | 24 | 25 | 22 |
Feels °C | 23 | 23 | 23 | 23 | 22 | 24 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 24 | 28 | 27 | 25 | 24 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 18 | S 11 | SW 17 | S 12 | SSW 12 | S 11 | S 11 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | W 6 | S 13 | S 13 | S 12 |
| kJ | 379 | 81 | 330 | 336 | 488 | 235 | 184 | 330 | 519 | 474 | 559 | 437 | 394 | 316 | 236 | 204 | 41 | 389 | 475 | 432 |
Swell 2 Height (m) Direction Period (s) | S 12 | SW 16 | S 13 | SW 17 | W 5 | SSW 15 | SW 16 | S 10 | S 9 | S 9 | W 5 | W 6 | SW 8 | W 6 | W 7 | S 12 | S 13 | SW 24 | W 6 | SW 21 |
| kJ | 67 | 127 | 163 | 424 | 8 | 409 | 367 | 96 | 59 | 57 | 12 | 28 | 9 | 32 | 56 | 69 | 222 | 563 | 25 | 664 |
Swell 3 Height (m) Direction Period (s) | W 6 | S 13 | S 11 | W 6 | WNW 15 | W 5 | SSW 13 | SSW 13 | W 5 | S 12 | S 8 | SSW 8 | S 8 | S 13 | S 12 | SW 26 | SW 13 | W 6 | SSW 24 | W 5 |
| kJ | 10 | 56 | 108 | 10 | 21 | 8 | 35 | 113 | 9 | 10 | 21 | 21 | 10 | 81 | 106 | 171 | 84 | 39 | 368 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 5 | W 4 | — | W 5 | — | — | W 6 | — | — | W 6 | — | — | — | — |
| kJ | — | — | — | — | — | — | 5 | 6 | — | 8 | — | — | 25 | — | — | 25 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 85 | 3 | 85 | 85 | 0 | 85 | 85 | 19 | 85 | 85 | 3 | 83 | 85 | 3 | 85 | 162 | 24 | 83 | 64 | 64 |
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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