Surf Forecasts:
Trestles (Lowers) surf forecast from 14 Aug 2026:
- Best quality surf: Friday 14 Aug, 11PM (local time) - 2.5ft (0.8m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 2AM (local time) - 2.5ft (0.8m), 15s period with SW 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 Friday (Aug 14) at 2AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.4m and 20s. 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 17s and forecast to arrive on Saturday (Aug 15) at 2AM. 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+) | 2AM (Fri 14th Aug) | 2.5ft (0.8m) 15s |
| Best Surf | 11PM (Fri 14th Aug) | 2.5ft (0.8m) 18s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
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 line for Trestles (Lowers). Gotta be straight with you – the next 16 days are a bit of a mixed bag with a lot of nearly-there conditions. The water is sitting at a warm 75°, which is a good 7° warmer than usual for this time of year. That’s very unusual, almost like a warm bath out there.
The outlook kicks off on Thursday the 13th of August, but it’s a rough start. We’ve got a 3ft SW swell with a long 16-second period, pushing a moderate 463 units of energy. The problem is that onshore wind is killing it; the session is a write-off. We go through a long stretch of frustrating days. Friday the 14th to Monday the 17th offer small, cleaner swell—2ft to 3ft from the SSW—but the wind is always cross-on or onshore, keeping the surface rippled and the quality marginal. The best of that early run is Saturday afternoon the 15th with a 4ft SSW swell, but it’s still cross-on.
From Tuesday the 18th right through to Sunday the 23rd, the surf is pretty much a no-go. The wind stays onshore or cross, and the swell drops to knee-high nothing. The energy level dips to a low of 169 units on the 21st. It’s a blank spell that lasts the better part of a week.
Now, things start to look a bit more promising as we push into the second week. Monday the 24th is still poor, but then Tuesday the 25th of August brings a change. We get a 3ft to 3ft S swell with a 17-second period, and the wind finally goes light and *on*-shore. The energy jumps to 640 units. This is the standout window. The wave looks clean, and the long period should give some nice, lined-up waves for the advanced crew at Lowers, since it’s a reefy point setup. It’s not huge, but it’s clean. Conditions hold through Wednesday the 26th with a slightly bigger 4ft S swell and 693 units of energy. The wind remains light and onshore in the morning, making for some tidy, uncrowded-feeling waves. Keep in mind the swell direction is S, and the optimum for this spot is SW, so it’s a bit of a compromise, but the clean conditions make it worthwhile.
The last couple of days of the window, the 27th and 28th, see the wind shift back to cross-on, and the quality drops again. The 28th has a nice 3ft SW swell with a 18-second period and 763 units of energy, but it’s let down by the wind.
So, the pick of the litter is clear: Tuesday the 25th and Wednesday the 26th of August. The swell is small, but the clean, light-wind conditions will give you the best waves you’ll see in this 16-day stretch. The rest of the time, the wind is the enemy.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Mon afternoon, min 20°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | ||||||||||||||||||||
358 | 280 | 302 | 404 | 807 | 417 | 683 | 666 | 499 | 372 | 367 | 330 | 261 | 261 | 232 | 240 | 272 | 377 | 387 | 249 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 10:06PM1.92m | 11:02AM1.53m | 10:48PM1.74m | 11:37AM1.55m | 11:31PM1.52m | 12:11PM1.55m | 00:18AM1.28m | 12:47PM1.51m | 1:15AM1.05m | 1:28PM1.45m | 2:46AM0.87m | 2:22PM1.40m | ||||||||
Low Tide | 4:04PM0.34m | 4:52AM-0.17m | 4:50PM0.32m | 5:23AM-0.01m | 5:38PM0.33m | 5:51AM0.17m | 6:30PM0.37m | 6:17AM0.37m | 7:30PM0.43m | 6:40AM0.56m | 8:50PM0.46m | 6:55AM0.73m | 10:43PM0.43m | |||||||
— | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | |
7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 20 | 23 | 23 | 20 | 22 | 22 | 21 | 23 | 24 | 21 | 24 | 25 | 22 | 25 | 24 | 22 | 23 | 23 | 21 |
Feels °C | 23 | 21 | 24 | 23 | 21 | 22 | 22 | 22 | 23 | 24 | 21 | 24 | 25 | 23 | 25 | 25 | 23 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | W 7 | W 7 | W 8 | W 8 | SSW 15 | W 8 | SSW 16 | W 8 |
358 | 280 | 255 | 404 | 807 | 417 | 683 | 666 | 499 | 372 | 367 | 330 | 56 | 102 | 127 | 89 | 272 | 100 | 387 | 91 | |
Swell 2 Height (m) Direction Period (s) | S 11 | SSW 20 | SSW 18 | SW 14 | S 12 | SW 14 | S 11 | W 5 | S 10 | S 10 | W 6 | W 6 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | W 9 | SSW 16 | W 8 | SSW 15 |
61 | 149 | 302 | 214 | 70 | 191 | 21 | 13 | 19 | 8 | 39 | 37 | 261 | 261 | 232 | 240 | 99 | 377 | 71 | 249 | |
Swell 3 Height (m) Direction Period (s) | SSW 21 | SSW 10 | SSW 10 | SSW 11 | W 11 | S 11 | W 11 | S 11 | W 10 | W 10 | S 10 | S 10 | SSW 18 | S 10 | SSW 13 | SSW 13 | SW 19 | SW 20 | W 14 | SW 18 |
44 | 32 | 37 | 66 | 2 | 37 | 2 | 20 | 2 | 2 | 8 | 8 | 61 | 2 | 116 | 98 | 15 | 16 | 4 | 13 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | W 4 | W 5 | — | W 5 | W 6 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 6 | 7 | — | 14 | 21 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 85 | 0 | 85 | 85 | 0 | 85 | 85 | 13 | 85 | 85 | 0 | 85 | 85 | 0 | 64 | 64 | 3 | 83 | 152 | 28 |
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.











