Surf Forecasts:
Trestles (Uppers) surf forecast from 16 Aug 2026:
- Best quality surf: Monday 17 Aug, 2AM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 16 Aug, 5AM (local time) - 3.5ft (1.0m), 16s period, SSW swell with 519 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2AM (local time) - 3ft (0.9m), 14s period with SSW swell.
Best Forecast Surf Conditions for Trestles (Uppers) this week:
The surf forecast for Trestles (Uppers) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 2AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.8m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trestles (Uppers) in the next 16 days are 1.0m 16s and forecast to arrive on Sunday (Aug 16) 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+) | 2AM (Mon 17th Aug) | 3ft (0.9m) 14s |
| Best Surf | 2AM (Mon 17th Aug) | 3ft (0.9m) 14s |
| Most Powerful | 5AM (Sun 16th Aug) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, let's talk about what's coming up for the next couple of weeks. There's one spot that's the main focus, but the conditions are going to be a real mixed bag.
The first thing to say is that we're starting off with a bit of a flat spell. The first few days are looking pretty average, with a lot of "poor" and "marginal" calls. The swell is there, but the wind is just not cooperating. It's going to be a slow start, but there is a little window of hope.
The standout here is definitely Trestles (Uppers). It's a world-class reef and point, almost always breaking, and it faces west, which is just about perfect for this spot. The water temp is about average for the time of year, so you'll be fine in a spring suit.
Looking at the first week, from Sunday the 16th through to Saturday the 22nd, it's a bit of a struggle. The swell is small, around 2 ft to 3 ft, coming from the SSW. The main problem is the wind. We've got a lot of cross-onshore breezes, which is making the surface choppy and messy. The combined energy is moderate, starting at around 534 (moderate) on Sunday morning but dropping off quickly. It's not the clean Trestles we all know and love. There are a few moments on the 18th, 19th, and 20th with light onshore winds, which might clean it up a little, but the scores are still low. It's a good time to be doing something else.
The following week doesn't look much better to be honest. From the 23rd to the 31st, the swell stays small, around 1 ft to 3 ft, mostly from the SW or SSW. The wind remains a persistent issue, often cross-onshore, though there are a few lighter windows. The real highlight, and the only one I'd get excited about, is the afternoon of Wednesday the 26th of August. We've got a glassy, clean forecast with zero wind out of the northwest. The swell is still small at 2 ft from the SW, with a period of 16 seconds—that's a nice long-period groundswell that should wrap around the point beautifully. The combined energy is only 262 (moderate), but the glassy conditions will make it way more fun than the numbers suggest. For that one afternoon, it's the best on offer.
After that, it's back to the same story: small, sloppy, and not worth the paddle out. The 27th through the 31st are all poor to marginal, with cross-onshore winds ruining the surface. The 28th of August has a bit more energy at 3 ft, but the wind is up again.
So, if you're keen, wait for that Wednesday afternoon, the 26th of August. It's the only real window of clean, glassy surf at Trestles. The rest of the time, it's a bit of a write-off for quality waves. Keep an eye on the forecasts, but don't hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon afternoon, min 19°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph | |||||||||||||||||||
612 | 499 | 372 | 367 | 330 | 264 | 261 | 232 | 243 | 246 | 377 | 314 | 249 | 236 | 236 | 173 | 139 | 99 | 98 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | glassy | cross-on | cross-on | glassy | on | on | glassy | on | on | cross |
High Tide | 11:31PM1.52m | 12:11PM1.55m | 00:18AM1.28m | 12:47PM1.51m | 1:15AM1.05m | 1:28PM1.45m | 2:46AM0.87m | 2:22PM1.40m | 3:41PM1.37m | 8:16AM0.98m | 5:05PM1.40m | ||||||||
Low Tide | 5:51AM0.17m | 6:30PM0.37m | 6:17AM0.37m | 7:30PM0.43m | 6:40AM0.56m | 8:50PM0.46m | 6:55AM0.73m | 10:43PM0.43m | 00:16AM0.32m | 9:51AM0.97m | 1:08AM0.21m | ||||||||
— | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 23 | 23 | 21 | 24 | 25 | 22 | 25 | 25 | 23 | 26 | 26 | 23 | 26 | 26 | 24 | 26 | 26 | 23 |
Feels °C | 21 | 24 | 23 | 21 | 24 | 24 | 22 | 26 | 25 | 25 | 26 | 26 | 25 | 27 | 27 | 25 | 27 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | W 6 | W 7 | W 8 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
612 | 499 | 372 | 367 | 330 | 264 | 68 | 79 | 76 | 246 | 377 | 314 | 249 | 236 | 236 | 173 | 139 | 99 | 98 | |
Swell 2 Height (m) Direction Period (s) | W 5 | WNW 5 | S 10 | W 5 | W 6 | SSW 18 | SSW 14 | SSW 16 | SSW 17 | W 8 | W 7 | W 8 | W 6 | W 6 | W 7 | W 6 | W 6 | W 6 | W 11 |
10 | 8 | 19 | 37 | 46 | 32 | 261 | 232 | 243 | 65 | 62 | 44 | 20 | 30 | 32 | 18 | 21 | 18 | 57 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | W 10 | S 10 | S 10 | S 10 | S 10 | SSW 13 | SSW 13 | S 9 | SW 20 | S 8 | SSW 18 | SW 19 | SW 19 | S 10 | SW 18 | SW 17 | SW 17 |
20 | 20 | 2 | 8 | 8 | 8 | 7 | 114 | 98 | 6 | 16 | 6 | 31 | 57 | 56 | 8 | 81 | 47 | 47 | |
Wind waves Height (m) Direction Period (s) | — | W 5 | W 4 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | 7 | 16 | — | — | 47 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 86 | 86 | 86 | 0 | 86 | 12 | 0 | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 83 | 129 | 1 |
Best forecast wave conditions in Orange County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Trestles (Uppers) Surf forecast
The above surf forecast table for Trestles (Uppers) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestles (Uppers) can be found by selecting the local surf guide option on the grey menu. Our Trestles (Uppers) 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 (Uppers)) 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 (Uppers) 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 (Uppers) 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.











