Surf Forecasts:
Trestles (Uppers) surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 8PM (local time) - 3ft (0.9m), 16s period, SW 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★+): Monday 10 Aug, 2AM (local time) - 2.5ft (0.8m), 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 10) at 2AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.4m and 4s. 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 17s and forecast to arrive on Saturday (Aug 15) at 2AM. 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 10th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 8PM (Thu 13th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's on the menu.
Starting off with Trestles (Uppers). It's a reef and point that's very consistent and exposed, liking the swell from the west. The water is sitting at 76°, which is much warmer than average for August – about 8° above the norm, so you’ll be comfortable in spring suit territory.
But honestly, the opening stretch is grim. From Sunday the 9th through to Monday the 17th, the wind is trash – mostly onshore or cross-onshore from the WSW, SW, and W. Swell heights barely hit 3ft, and the combined energy is weak to moderate, reading between 352 and 667. The wave call is consistently "poor surf conditions" or "marginal," so it’s a lot of whitewash and chop.
The one day worth circling is Saturday, August 15th. The morning shows 3ft from the SSW at a long 16 seconds. By the afternoon, it bumps to 4ft from the SSW, still with that solid 16-second period. The combined energy peaks at 747, the highest of the whole forecast. Wind is still onshore, but it’s the best we’ve got. For a point break like Uppers, that long-period groundswell from the SSW will wrap in with more energy and better shape. The sets will be cleaner, and the gaps between them make paddling out easier. This is the clear highlight.
After the 15th, it drops off a cliff. By the 22nd and 23rd, you’re looking at 2ft or less with combined energy sliding back to the 300s. Nothing to write home about.
So here’s the deal: over a week of rubbish, then a brief window on Saturday the 15th with a 4ft SSW groundswell. That’s your best shot. Past that, it’s pretty bleak.
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Sun afternoon, min 21°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Wed afternoon, min 19°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 15 | SSW 14 | SSW 14 | SW 20 | SW 19 | SSW 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 242 | 236 | 207 | 186 | 184 | 93 | 252 | 316 | 193 | 264 | 261 | 201 | 358 | 280 | 299 | 360 | 807 | 417 | 627 | 729 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | on | glassy | cross-on | cross-on | cross | on | on | cross-on |
High Tide | 6:57PM1.93m | 8:47AM1.21m | 7:49PM2.03m | 9:21AM1.31m | 8:37PM2.07m | 9:55AM1.40m | 9:22PM2.03m | 10:28AM1.47m | 10:06PM1.92m | 11:02AM1.53m | 10:48PM1.74m | 11:37AM1.55m | 11:31PM1.52m | |||||||
Low Tide | 2:27AM-0.29m | 1:39PM0.62m | 3:07AM-0.35m | 2:30PM0.50m | 3:44AM-0.35m | 3:17PM0.40m | 4:19AM-0.29m | 4:04PM0.34m | 4:52AM-0.17m | 4:50PM0.32m | 5:23AM-0.01m | 5:38PM0.33m | ||||||||
 |  | | | |  | | | | |  | | | | | | | | | | |
 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | 7:42 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 21 | 24 | 24 | 22 | 24 | 25 | 22 | 24 | 24 | 21 | 22 | 22 | 19 | 22 | 22 | 20 | 22 | 23 | 23 |
Feels °C | 25 | 23 | 25 | 24 | 24 | 25 | 25 | 23 | 24 | 24 | 22 | 22 | 22 | 20 | 22 | 21 | 20 | 22 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SW 16 |
| kJ | 242 | 236 | 207 | 139 | 137 | 93 | 252 | 316 | 193 | 264 | 261 | 201 | 358 | 280 | 217 | 360 | 807 | 417 | 627 | 729 |
Swell 2 Height (m) Direction Period (s) | SW 11 | W 4 | SW 20 | SW 20 | SW 19 | SW 15 | SSW 12 | SSW 12 | SSW 12 | S 12 | S 12 | S 11 | S 11 | S 12 | SSW 18 | SW 14 | S 12 | SW 14 | SW 13 | S 11 |
| kJ | 30 | 5 | 104 | 186 | 184 | 75 | 57 | 56 | 28 | 47 | 47 | 60 | 64 | 65 | 299 | 214 | 65 | 191 | 62 | 20 |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 11 | W 4 | SW 16 | SW 14 | SSW 19 | SW 15 | S 13 | S 13 | SW 13 | SSW 11 | SW 12 | SSW 21 | SSW 20 | S 11 | SSW 10 | W 4 | S 11 | S 11 | SW 7 |
| kJ | 72 | 30 | 1 | 39 | 33 | 71 | 75 | 29 | 51 | 62 | 22 | 39 | 44 | 151 | 36 | 85 | 5 | 38 | 21 | 2 |
Wind waves Height (m) Direction Period (s) | W 5 | — | — | SW 11 | — | W 6 | SW 10 | — | W 5 | W 6 | — | — | W 8 | — | W 5 | WSW 9 | — | W 8 | WSW 8 | W 4 |
| kJ | 8 | — | — | 18 | — | 2 | 15 | — | 2 | 3 | — | — | 12 | — | 2 | 8 | — | 21 | 37 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 86 | 0 | 86 | 86 | 0 | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 12 | 86 | 86 | 12 |
Best forecast wave conditions in Orange County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.
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