Surf Forecasts:
Trestles (Uppers) surf forecast from 24 Aug 2026:
- Best quality surf: Saturday 29 Aug, 5AM (local time) - 4ft (1.2m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 5AM (local time) - 4ft (1.2m), 18s period, SSW swell with 877 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 5AM (local time) - 2ft (0.6m), 18s 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 Monday (Aug 24) at 5AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.7m and 14s. 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 1.2m 18s and forecast to arrive on Saturday (Aug 29) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 11s period and expected on Wednesday (Aug 26) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 24th Aug) | 2ft (0.6m) 18s |
| Best Surf | 5AM (Sat 29th Aug) | 4ft (1.2m) 18s |
| Most Powerful | 5AM (Sat 29th Aug) | 4ft (1.2m) 18s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's have a look at what Trestles (Uppers) is serving up over the next couple of weeks. Don't expect magic, it's a bit of a wait-and-see situation.
The forecast kicks off with a pretty quiet start. Right out of the gate on Monday the 24th of August, we're looking at small, weak swell at about 2ft from the southwest. The energy is low, sitting at around 302, and while the breeze is light, it's blowing onshore, which isn't going to do us any favours. The water temp is about average for the time of year, so no surprises there. Honestly, the first few days are a real grind, with tiny waves and poor conditions pretty much all the way through to Tuesday.
Around Wednesday the 26th of August, we finally see a bump. That S swell comes up to 5ft with a 12-second period, and the combined energy climbs to 830, which is more like it. The morning session could be worth a paddle, but that onshore wind will still be a factor. The problem is, the wind stays stubbornly onshore or cross-onshore for days after that, keeping things messy.
There's a bit of a tease late in the first week. Friday the 28th has some longer-period SSW swell at 3ft-2ft but the energy is moderate at 546. It’s still not the clean, groomed Uppers we all dream of. The pattern keeps up through the weekend and into the start of September: small to moderate swell around 3ft to 4ft, but that persistent cross-onshore breeze is a real buzzkill, making everything a bit lumpy.
Then we get to the second week. The standout of the entire 16-day window is Tuesday the 1st of September. We’ve got a clean 4ft S groundswell rolling in with a 12-second period. The combined energy breaks the 600 mark at 608. The morning has some clouds, but the wind is a light cross-on. That’s your best chance at scoring a few clean ones at Uppers before the wind kicks up. The water will still feel about average for the time of year.
After that, the quality drops off again. We get a spike of energy on Friday the 4th of September, with a 4ft SSW swell and a long 16 to 17-second period pushing the combined energy up to 881 and 901. That’s a lot of energy and a very long-period groundswell. This is a word of caution: that long period (over 15 seconds) will make the waves at this reef and point setup a bit straighter and more powerful, definitely not one for the groms. The wind is still a problem, a gentle cross-onshore making it fairly choppy.
The last truly notable push comes Tuesday the 8th of September. We see a solid 8ft S swell, but the period is a short 8 seconds, making it a windswell. The combined energy is a powerful 1081. However, with that size and short period, it's a messy, powerful beast for experts only, and the cross-onshore breeze won't polish it up. It’s one to watch from the sand.
So, to sum it up, there's no epic, perfect day on the cards. The pick of the litter is Tuesday the 1st of September for a morning session, and the powerful, long-period groundswell on Friday the 4th is worth a look for experienced surfers who don't mind the chop. Get in the water when you can, but keep your expectations realistic for this stretch.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 24°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 18 | SW 17 | SW 17 | SW 16 | SW 16 | S 13 | S 12 | S 12 | S 11 | S 10 | S 10 | SSW 18 | SSW 17 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||
213 | 197 | 179 | 270 | 216 | 208 | 277 | 584 | 529 | 426 | 300 | 247 | 270 | 351 | 289 | 742 | 587 | 627 | 604 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | glassy | on | cross-on | cross-on | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 8:38AM1.17m | 7:31PM1.68m | 8:56AM1.23m | 8:05PM1.75m | 9:16AM1.30m | 8:37PM1.78m | 9:38AM1.37m | 9:09PM1.77m | 10:01AM1.45m | 9:43PM1.71m | 10:26AM1.52m | 10:18PM1.61m | |||||||
Low Tide | 2:15AM0.03m | 1:27PM0.73m | 2:41AM-0.02m | 2:01PM0.63m | 3:06AM-0.06m | 2:35PM0.54m | 3:31AM-0.06m | 3:09PM0.45m | 3:55AM-0.04m | 3:45PM0.38m | 4:19AM0.02m | 4:23PM0.33m | 4:43AM0.13m | ||||||
— | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | |
— | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 27 | 27 | 25 | 28 | 29 | 26 | 28 | 28 | 26 | 26 | 27 | 25 | 29 | 29 | 26 | 29 | 29 | 25 |
Feels °C | 28 | 29 | 28 | 27 | 29 | 29 | 28 | 29 | 29 | 28 | 27 | 28 | 27 | 30 | 28 | 28 | 30 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | S 13 | S 13 | S 12 | S 12 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 | SSW 17 | SSW 17 | SSW 16 | W 8 |
213 | 197 | 179 | 270 | 216 | 170 | 277 | 584 | 529 | 426 | 300 | 247 | 196 | 134 | 102 | 742 | 587 | 627 | 196 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | W 6 | S 13 | S 13 | S 13 | SSE 12 | SSE 11 | W 7 | SW 16 | SW 15 | W 6 | SW 14 | SSW 18 | SSW 17 | SSW 19 | S 8 | W 8 | W 9 | SSW 16 |
199 | 16 | 82 | 126 | 126 | 111 | 161 | 43 | 196 | 171 | 30 | 102 | 270 | 351 | 289 | 71 | 90 | 106 | 604 | |
Swell 3 Height (m) Direction Period (s) | W 5 | SSW 12 | W 6 | W 5 | W 6 | SW 16 | SW 16 | SW 16 | W 6 | W 6 | SW 14 | W 8 | SW 13 | W 11 | SW 14 | W 10 | S 10 | S 9 | S 8 |
12 | 89 | 9 | 7 | 17 | 208 | 203 | 203 | 29 | 12 | 132 | 36 | 87 | 61 | 149 | 53 | 67 | 57 | 22 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 83 | 206 | 0 | 74 | 12 | 20 | 66 | 64 | 0 | 64 | 88 | 0 | 83 | 86 | 0 | 86 | 86 | 20 |
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.











