Surf Forecasts:
Trestles (Uppers) surf forecast from 23 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★+): Sunday 23 Aug, 5AM (local time) - 2.5ft (0.7m), 16s 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 Sunday (Aug 23) at 5AM. The primary swell is predicted to be 0.7m and 16s 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 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 12s period and expected on Wednesday (Aug 26) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 23rd Aug) | 2.5ft (0.7m) 16s |
| 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, Rusty here. Let’s break this down in feet and miles per hour.
First thing: the whole run at Trestles (Uppers) starts off slow. Real slow. Sunday the 23rd and Monday the 24th, we’re looking at waves around 1 ft to 2 ft from the southwest, with wind coming cross-onshore at 6 to 9 mph. The combined swell energy is weak—somewhere in the (265 to 354) range. Poor surf. Not worth wetting your wetsuit.
Tuesday the 25th is the same story: 2 ft swell, 10-second period, light onshore wind, energy around (366 to 399). Still marginal.
Wednesday the 26th, the swell jumps to 5 ft from the south, period at 13 seconds, and energy hits (979). That’s moderate energy, but the wind is cross-onshore from the south at 9 mph. It’ll be choppy. Poor conditions.
Thursday the 27th through Friday the 28th, the swell drops to 4 ft and then 3 ft. Still cross-onshore. Energy drops to (501) then (527). The best of this stretch is Friday morning the 28th: 3 ft from the SSW, a long 17-second period, light onshore wind, energy at (527). Still only marginal.
Saturday the 29th and Sunday the 30th, we get a bit better: 3 ft to 4 ft from the SSW, periods of 15 to 17 seconds, energy between (594) and (806). Light cross-onshore wind. These are the pick of the first week if you’re desperate, but it’s still nothing to write home about.
Then Monday the 31st of August through Wednesday the 2nd of September, it goes flat and weak again: 2 ft to 3 ft, wind from the SSE or S at 9 to 12 mph, energy down to (268). Poor.
The real standout comes on Thursday the 3rd of September and Friday the 4th of September. Thursday morning: 3 ft from the SSW with a very long 19-second period—that’s proper groundswell—light onshore wind from the SW, energy at (574). Thursday afternoon improves: 3 ft, same 19-second period, light onshore wind, energy at (745). Friday the 4th morning: 4 ft from the SSW, 17-second period, energy at (905). Friday afternoon: 4 ft, 17-second period, energy at (994). Wind is light and cross-onshore, but in the afternoon it’s only a light breeze. For a reef-and-point break like Uppers, that long-period SSW groundswell will wrap in nicely. It’s not glassy, but it’s the cleanest and most consistent surf of the whole 16 days.
Crowds: Uppers is always busy. Expect company, especially on those better days.
After that, Sunday the 6th of September, the surf fades to 3 ft and 3 ft, with cross-onshore wind again. Not much to chase.
Water temp: Nothing unusual in the numbers—about average for this time of year.
Bottom line: If you’ve got time, wait for Thursday the 3rd and Friday the 4th of September. That’s your window. Everything before is small and choppy. After that, it’s back to small and marginal. Keep an eye on the wind—if it ever turns offshore, it could be a gem, but right now the forecast isn’t showing it.
- Rusty
Short Range ForecastMostly dry. Warm (max 29°C on Tue morning, min 23°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Fri afternoon, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 14 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | S 14 | S 13 | S 12 | S 12 | S 11 | S 10 | SSW 18 | SSW 17 | SSW 19 | SSW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 218 | 127 | 155 | 213 | 197 | 179 | 270 | 216 | 208 | 368 | 715 | 556 | 449 | 317 | 242 | 270 | 351 | 289 | 742 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | glassy | on | cross-on | glassy | on | on | cross | cross-on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | glassy |
High Tide | 8:24AM1.11m | 6:54PM1.59m | 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 | |||||||
Low Tide | 1:45AM0.11m | 12:49PM0.84m | 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 | ||||||
 |  |  | | | | | | | | | | | | |  | | | | |
 | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — |
 | — | — | 7:27 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 28 | 28 | 25 | 27 | 28 | 25 | 29 | 29 | 26 | 26 | 26 | 24 | 26 | 27 | 26 | 28 | 29 | 26 |
Feels °C | 27 | 29 | 28 | 26 | 28 | 28 | 28 | 29 | 29 | 27 | 26 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | W 6 | SSW 13 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | S 13 | S 14 | S 13 | S 12 | S 12 | S 11 | S 10 | S 9 | W 8 | S 9 | SSW 17 |
| kJ | 218 | 39 | 98 | 213 | 197 | 179 | 270 | 216 | 173 | 368 | 715 | 556 | 449 | 317 | 242 | 140 | 72 | 71 | 742 |
Swell 2 Height (m) Direction Period (s) | W 10 | SSW 13 | SW 18 | SW 18 | W 6 | S 13 | S 13 | S 13 | SSE 12 | SSE 12 | W 7 | W 7 | SW 15 | W 7 | W 8 | SSW 18 | S 9 | W 8 | W 8 |
| kJ | 50 | 99 | 155 | 199 | 16 | 82 | 126 | 126 | 111 | 179 | 61 | 33 | 171 | 52 | 49 | 270 | 104 | 57 | 127 |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 19 | SSW 16 | W 5 | SSW 12 | S 15 | W 5 | W 6 | SW 16 | W 7 | SW 16 | SW 16 | W 8 | SW 14 | SW 14 | W 9 | SSW 17 | SSW 19 | S 10 |
| kJ | 58 | 127 | 84 | 11 | 89 | 68 | 12 | 24 | 208 | 56 | 203 | 198 | 28 | 132 | 103 | 57 | 351 | 289 | 92 |
Wind waves Height (m) Direction Period (s) | — | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 17 | — | — | 16 | — | — | 18 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 86 | 86 | 0 | 86 | 12 | 0 | 86 | 151 | 3 | 88 | 88 | 64 | 83 | 86 | 0 | 36 | 86 | 0 |
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)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trestles (Uppers) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest