Surf Forecasts:
Trestles (Uppers) surf forecast from 13 Sep 2026:
- Best quality surf: Thursday 17 Sep, 11PM (local time) - 3.5ft (1.0m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 11PM (local time) - 3.5ft (1.0m), 15s period, SSW swell with 405 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 2.5ft (0.8m), 10s period with W 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 (Sep 13) at 8PM. The primary swell is predicted to be 0.4m and 19s period with a secondary swell of 0.8m and 10s. Another secondary swell of 0.5m and 13s is also forecast. 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 15s and forecast to arrive on Thursday (Sep 17) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 9s period and expected on Wednesday (Sep 16) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 13th Sep) | 2.5ft (0.8m) 10s |
| Best Surf | 11PM (Thu 17th Sep) | 3.5ft (1.0m) 15s |
| Most Powerful | 11PM (Thu 17th Sep) | 3.5ft (1.0m) 15s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's coming up for Trestles (Uppers). It's a reef and point set-up that's very consistent and exposed to the west swell, but the next couple of weeks are going to test your patience. The water temp is sitting about average for this time of year, so nothing wild there.
Right out of the gate, we've got a rough stretch. From Sunday the 13th right through to at least Wednesday the 17th, it’s a grim picture. The swell is tiny, mostly around 2ft to 3ft, and the wind is constantly cross-onshore or onshore. That's a recipe for choppy, poor surf. The wave energy is moderate, ranging from (157) up to (505), but it doesn't matter when the conditions are that messy. You're not going to want to paddle out.
We finally see a glimmer of hope on Thursday the 19th. Saturday morning looks like the first real window. We’ve got a 3ft SW swell with a very long period of 18 seconds and light onshore wind. The combined energy is solid at (572). That long period means proper groundswell energy with long lulls, but at a point break like Uppers, it should shape up nicely. It's still a marginal call, but it's the best we've seen. Saturday afternoon is similar, though with a light cross-onshore breeze.
Sunday the 20th keeps the 3ft to 3ft SW swell going, with periods still long at 18 seconds. The morning has a cross-onshore breeze, but the afternoon lightens up with a light cross-onshore breeze and energy hitting (592). It's another marginal day, but that's where the focus should be.
After that, from Monday the 21st through the rest of the outlook, it's back to that frustrating pattern of small swell, cross-onshore winds, and marginal-to-poor conditions. There's no real standout window.
If you have to pick a time to go, target the Saturday the 19th afternoon or Sunday the 20th afternoon. The swell is small, but that long period SW groundswell and the point break setup could offer a few fun, clean lines. It's nothing to get overly excited about, but it's the best on offer.
Stay patient,
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Fri afternoon, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 14 | SW 13 | W 9 | W 9 | W 8 | W 10 | SW 17 | SW 16 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 160 | 88 | 96 | 225 | 146 | 150 | 147 | 127 | 127 | 114 | 386 | 240 | 366 | 196 | 246 | 376 | 303 | 303 | 234 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | cross | cross-on | cross-on | cross | cross-on | on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy |
High Tide | 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 | 2:20PM1.29m | ||||||||
Low Tide | 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 | 11:29PM0.35m | ||||||||
 |  | | | | | | | | | | | | | | | | | | |
 | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 24 | 24 | 22 | 23 | 23 | 21 | 22 | 23 | 20 | 22 | 22 | 20 | 22 | 22 | 20 | 23 | 24 | 21 |
Feels °C | 24 | 24 | 25 | 24 | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 23 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 7 | W 9 | W 9 | W 8 | W 10 | W 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | W 6 |
| kJ | 29 | 57 | 96 | 225 | 146 | 149 | 76 | 74 | 80 | 32 | 386 | 240 | 366 | 196 | 246 | 376 | 303 | 303 | 48 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | SSE 9 | S 9 | S 12 | S 12 | SW 21 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 160 | 88 | 87 | 85 | 108 | 150 | 147 | 127 | 122 | 88 | 11 | 28 | 40 | 72 | 97 | 154 | 163 | 141 | 101 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 8 | SW 19 | SW 19 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | SSE 9 | W 6 | SW 20 | SW 21 | SW 21 | W 4 | W 5 | S 11 | SW 19 |
| kJ | 23 | 12 | 58 | 127 | 44 | 40 | 38 | 37 | 127 | 114 | 28 | 10 | 61 | 160 | 160 | 5 | 14 | 36 | 234 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SSE 2 | — | — | — | — | — | — | — | W 3 | — | — | W 6 | — |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 2 | — | — | 23 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 64 | 86 | 28 | 83 | 88 | 28 | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 |
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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