
Surf Forecasts:
Trestles (Uppers) surf forecast from 12 Sep 2026:
- Best quality surf: Thursday 17 Sep, 8AM (local time) - 2.5ft (0.8m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 11AM (local time) - 3ft (0.9m), 17s period, SSW swell with 475 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 8PM (local time) - 2ft (0.6m), 14s period with SW 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 Saturday (Sep 12) at 8PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m and 6s. 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 0.9m 17s and forecast to arrive on Wednesday (Sep 16) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 11s period and expected on Wednesday (Sep 16) at 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 12th Sep) | 2ft (0.6m) 14s |
| Best Surf | 8AM (Thu 17th Sep) | 2.5ft (0.8m) 16s |
| Most Powerful | 11AM (Wed 16th Sep) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's look at what we've got on the table for the next couple of weeks.
To be straight up with you, this is looking like a tough run for Trestles (Uppers). It's a reef and point set-up that can be world-class, but the numbers just aren't giving us the quality we need for a proper session. There’s a lot of days with onshore or cross-onshore wind messing things up. The water temp is about average for this time of year, so no surprises there.
Right from the start, Saturday the 12th is a write-off. We’re looking at a small 2ft SW swell with a long 14-second period, but that south wind at 9 mph is chopping it up. It’s no good.
We roll into Sunday the 13th, and it’s a similar story. A little more size, around 3ft from the west, but the period has dropped right off to a short 7 seconds, and that wind is still from the south. The waves will be weak and messy.
Monday the 14th and Tuesday the 15th are also not the ones. The wind stays cross-on, and the swell is either small or weak. The combined energy is moderate, but none of that matters with the conditions.
The first real glimmer of hope doesn't show up until Wednesday the 16th. We’ve got a cleaner morning with lighter winds and a 3ft SSW swell running a long 17-second period. The energy bumps up to moderate. It’s still a little onshore, so it’s not perfect, but it’s the best we’ve seen all week. It's only marginal though.
Throughout the middle of the second week, from the 17th to the 22nd, we see more of the same. The swell hangs in there, mostly in the 3ft to 3ft range from the SSW and SW with good long periods of 15-19 seconds. The combined energy actually gets into a strong range. The catch? The wind remains stubbornly cross-on or onshore for most of these days, leaving the surface bumpy.
There's a slight improvement on Saturday the 19th morning and Sunday the 20th afternoon when the wind goes light and onshore. On the 20th, with that 3ft SW swell (18-second period) and 3 mph onshore breeze, and the energy strong, it might just be rideable. I'd still call it marginal.
The tail end of the forecast into the 26th and 27th looks uninspiring. We’re back to small swells and that same old onshore wind.
So, what’s the pick? Honestly, there isn't a standout session in this entire 16-day window. The best bet is probably Sunday morning, September 20th. The swell is consistent at 3ft from the SW with a great 18-second period, the wind is very light and onshore, and the combined wave energy is strong. It’s the closest we’ll get to clean, lined-up waves. But don't expect perfection – it’s still on the small side and far from the Uppers we dream about. For the experts, the longer period should make for some good shape on the point, but beginners will find it easily manageable as it's under 5ft.
The rest of the time, the wind just doesn't play ball. It’s a quiet period, lads. Sometimes the ocean just takes a nap.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 21°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 15 | SW 14 | SW 14 | SW 14 | W 7 | SW 13 | W 8 | W 8 | SW 18 | SW 17 | SW 16 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph | |||||||||||||||||||
309 | 214 | 164 | 160 | 97 | 88 | 173 | 114 | 150 | 147 | 163 | 127 | 113 | 475 | 310 | 291 | 284 | 246 | 242 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | glassy | cross-on | on | cross | cross-on | cross-on | cross | cross-on | on | glassy | on | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 9:50PM1.71m | 10:15AM1.70m | 10:31PM1.55m | 10:44AM1.70m | 11:13PM1.36m | 11:11AM1.66m | 11:59PM1.17m | 11:38AM1.58m | 00:58AM0.99m | 12:07PM1.48m | 2:45AM0.87m | 12:46PM1.38m | |||||||
Low Tide | 4:08AM0.08m | 4:33PM0.14m | 4:33AM0.24m | 5:15PM0.16m | 4:56AM0.41m | 5:59PM0.22m | 5:16AM0.57m | 6:51PM0.30m | 5:28AM0.72m | 8:00PM0.38m | 5:12AM0.84m | 9:44PM0.41m | |||||||
— | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 24 | 22 | 24 | 24 | 22 | 23 | 23 | 21 | 22 | 22 | 20 | 22 | 23 | 20 | 23 | 23 | 21 |
Feels °C | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 23 | 21 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | W 6 | W 7 | W 7 | W 8 | W 8 | W 10 | W 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
309 | 214 | 164 | 48 | 97 | 88 | 173 | 114 | 116 | 78 | 55 | 58 | 33 | 475 | 310 | 291 | 284 | 246 | 242 | |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | W 6 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | SSE 11 | SSW 12 | S 10 | S 10 | W 4 |
24 | 36 | 23 | 160 | 88 | 87 | 85 | 108 | 150 | 147 | 163 | 122 | 87 | 11 | 38 | 85 | 49 | 45 | 10 | |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | S 10 | S 9 | S 8 | SW 19 | SW 19 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | SSE 9 | W 6 | S 10 | SW 21 | SW 21 | S 9 |
15 | 28 | 28 | 23 | 12 | 58 | 127 | 44 | 40 | 38 | 37 | 127 | 113 | 16 | 9 | 47 | 160 | 160 | 26 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 5 | WNW 3 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 83 | 86 | 0 | 64 | 86 | 3 | 83 | 88 | 3 | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 12 |
Best forecast wave conditions in Orange County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










