
Surf Forecasts:
Trestles (Lowers) surf forecast from 21 Jul 2026:
- Best quality surf: Saturday 25 Jul, 5AM (local time) - 3.5ft (1.0m), 21s period, SW swell with glassy winds.
- Most powerful swell: Monday 27 Jul, 2PM (local time) - 4ft (1.2m), 18s period, SW swell with 936 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 11PM (local time) - 3.5ft (1.0m), 14s 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 22) at 11PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.9m and 13s. 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 18s and forecast to arrive on Monday (Jul 27) at 2PM. 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 22nd Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 5AM (Sat 25th Jul) | 3.5ft (1.0m) 21s |
| Most Powerful | 2PM (Mon 27th Jul) | 4ft (1.2m) 18s |
Table - best surf conditions forecast for Trestles (Lowers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's coming down the pipeline for Trestles (Lowers). It's a bit of a mixed bag, honestly. We've got a long stretch of small, tricky conditions to sit through before any real energy shows up. The water temp is sitting pretty average for this time of year, nothing wild to report there.
First up, Tuesday morning the 21st. We're looking at a 4.3ft SSW swell with a 16-second period, which is a nice long-period groundswell. The energy is moderate at 858, but the wind is onshore from the SW at 9 mph and the call is 'marginal'. It's not doing us any favours. The afternoon gets worse, with a cross-onshore breeze and the surf dropping off. Honestly, the next few days are a grind. Wednesday the 22nd and Thursday the 23rd are more of the same: small, messy, and choppy. You'll be fighting the wind for nothing.
Friday the 24th is a bit of a tease. We get a small 2.3ft swell but with a super long 24-second period, giving us a moderate energy of 874. The wind is light though, so there might be a clean little wave if you're desperate. Saturday the 25th morning is probably the first real window. The swell is still small at 3.0ft, but it's a 21-second period from the SW with a solid 1011 energy. The wind is light and offshore, so conditions will be glassy. It's not big, but for a patient surfer, the quality will be there on the sets.
We then slide into a long stretch of marginal surf. The wind stays light, but the swell is inconsistent and small through the end of July. The big news is sitting out there for Friday the 31st of July. A solid 6.6ft to 7.5ft S swell rolls in, with a 15-second period. The energy jumps to a whopping 2246, which is strong. But here's the catch: the wind is a cross-onshore W breeze at 9 mph, which will put a bit of a chop on the face. This is a big, powerful groundswell for Trestles, and at 7.5ft, it's going to be a big, powerful wave. This is strictly for the advanced crew. The strong energy and size will make it a heavy, fast wave, and the cross-onshore wind will make it tricky. This is the standout session, but only for those who can handle it.
The first few days of August just fade out. Saturday the 1st has a dropping 5.9ft swell with lighter winds, but it's still a bit much. After that, from Sunday the 2nd of August onwards, the plug gets pulled. The swell drops to 2.0ft or less, with poor conditions and weak energy. We're looking at a solid 3-day gap of flat, poor surf at the end of the forecast window.
So, to sum it up: you'll be waiting for that Saturday morning the 25th for a quiet, glassy session on a small but long-period swell. The real heavy hitter is Friday the 31st of July, but I'd only point the advanced guys at that one. Otherwise, it's a long wait for not much.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 21°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 22°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | SW 24 | S 12 | SW 21 | SW 21 | SW 21 | SW 19 | SSW 19 | SW 18 | SW 18 | SW 18 | SSW 18 | SSW 17 |
Wave Graph | |||||||||||||||||||||
827 | 559 | 559 | 437 | 394 | 400 | 498 | 408 | 339 | 563 | 171 | 664 | 664 | 640 | 863 | 657 | 635 | 719 | 926 | 893 | 762 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | cross-on | cross-on | on | cross-on | on | on | glassy | on | on | cross-on | on | cross-on | cross-on |
High Tide | 3:42PM1.45m | 5:11AM0.84m | 4:40PM1.47m | 7:14AM0.88m | 5:36PM1.51m | 8:16AM0.96m | 6:26PM1.57m | 8:48AM1.02m | 7:09PM1.64m | 9:12AM1.07m | 7:47PM1.70m | 9:35AM1.11m | 8:23PM1.76m | ||||||||
Low Tide | 8:31AM0.55m | 11:24PM0.42m | 9:18AM0.71m | 00:41AM0.28m | 10:30AM0.81m | 1:32AM0.15m | 11:48AM0.85m | 2:10AM0.05m | 12:47PM0.83m | 2:43AM-0.03m | 1:32PM0.78m | 3:13AM-0.08m | 2:10PM0.72m | 3:42AM-0.12m | |||||||
5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 7:57 | — | — | 7:57 | — | — | 7:55 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 23 | 23 | 23 | 22 | 25 | 26 | 23 | 24 | 24 | 22 | 25 | 26 | 22 | 25 | 25 | 23 | 26 | 25 | 22 |
Feels °C | 24 | 24 | 23 | 24 | 22 | 24 | 27 | 27 | 25 | 25 | 24 | 23 | 26 | 26 | 23 | 27 | 25 | 24 | 27 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | W 7 | S 13 | S 13 | S 13 | S 12 | S 12 | SSW 12 | SSW 12 | SSW 12 | SW 19 | SSW 19 | SW 18 | SW 18 | SW 18 | SSW 18 | SSW 17 |
827 | 559 | 559 | 437 | 394 | 92 | 498 | 408 | 339 | 224 | 171 | 258 | 250 | 203 | 863 | 657 | 635 | 719 | 926 | 893 | 762 | |
Swell 2 Height (m) Direction Period (s) | S 14 | SSW 9 | SSW 8 | SW 8 | S 14 | SSW 14 | W 7 | W 7 | W 7 | W 7 | W 7 | SW 21 | SW 21 | SW 21 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SW 11 | W 7 | SW 12 |
16 | 92 | 61 | 32 | 203 | 400 | 93 | 71 | 73 | 82 | 44 | 664 | 664 | 640 | 199 | 200 | 193 | 151 | 97 | 33 | 68 | |
Swell 3 Height (m) Direction Period (s) | W 14 | SW 11 | SW 21 | S 16 | SW 8 | S 13 | SW 18 | SW 26 | SW 26 | SW 24 | SSW 13 | W 6 | W 7 | W 6 | SW 15 | W 7 | W 7 | W 6 | W 7 | SW 10 | W 7 |
15 | 19 | 71 | 78 | 20 | 272 | 51 | 171 | 105 | 563 | 141 | 30 | 31 | 28 | 107 | 31 | 31 | 21 | 32 | 52 | 23 | |
Wind waves Height (m) Direction Period (s) | — | — | — | W 4 | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 5 | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 85 | 13 | 85 | 85 | 0 | 85 | 85 | 85 | 85 | 85 | 32 | 85 | 144 | 0 | 83 | 152 | 89 | 83 | 83 | 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.










