Surf Forecasts:
Trestles (Uppers) surf forecast from 17 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 11PM (local time) - 6ft (1.8m), 16s period, S swell with glassy winds.
- Most powerful swell: Thursday 23 Jul, 2AM (local time) - 6ft (1.9m), 16s period, S swell with 1,719 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 8PM (local time) - 2ft (0.6m), 19s 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 (Jul 18) at 8PM. The primary swell is predicted to be 0.6m and 19s period with a secondary swell of 0.7m and 11s. 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 1.9m 16s and forecast to arrive on Thursday (Jul 23) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 14s period and expected on Wednesday (Jul 22) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 18th Jul) | 2ft (0.6m) 19s |
| Best Surf | 11PM (Wed 22nd Jul) | 6ft (1.8m) 16s |
| Most Powerful | 2AM (Thu 23rd Jul) | 6ft (1.9m) 16s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s ahead.
We’re looking at Trestles (Uppers) – a reef and point setup that’s very consistent and exposed for west swell. The water’s a balmy 71°, which is much warmer than usual for this time of year, so you can leave the wetsuit at home.
The first few days are a bit of a write-off. Thursday the 16th through Saturday the 18th are small and messy with cross-onshore winds, so don’t get your hopes up. The combined swell energy is weak to moderate at best, with readings from 240 to 487. It’s just not worth paddling out for.
Things start to get a little more interesting from Sunday the 19th. The swell picks up to 4ft on Sunday morning from the S, and by the afternoon it’s 4ft with a 12-second period, and the combined energy jumps to 1023. That’s moderate energy, but it’s straight onshore wind, so it’ll be a bit lumpy. The surface won’t be inspired.
The standout window is shaping up around Wednesday the 22nd afternoon through Thursday the 23rd. On Wednesday afternoon, we’ve got 5ft from the S at 15 seconds, with combined energy hitting 1243 – that’s solid moderate energy. But the wind is a moderate cross-onshore, so it’ll be choppy. The real highlight is Thursday the 23rd: morning and afternoon both see 6 to 6ft of S swell, with light onshore breezes keeping the surface clean. The energy is strong at 1525 and 1368. That’s the best run of the forecast. The swell is getting up there, so it’s not for beginners, but for the experienced crew, this is where it’s at. The wind is light and the waves will have some real push.
Beyond that, the following week from Friday the 24th into the end of the month holds surf in the 4 to 6ft range, mostly from the S and SSW, with periods improving to 18-19 seconds by the 26th and 27th. That long period will bring nice shape but can make the sets a bit lully. The wind stays light and mostly onshore or cross-onshore, so the quality will be okay but not epic. The energy readings stay in the moderate to strong bracket, mostly in the 1200-1600 range, so there’s always something to ride – just nothing that jumps out as a true standout after the 23rd.
Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Thu afternoon, min 20°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 20°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | SW 16 | SW 19 | SW 19 | SW 18 | SW 15 | SW 18 | SW 18 | S 11 | SW 17 | S 12 | S 12 | SSW 15 | SSW 16 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 15 | S 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 121 | 126 | 181 | 83 | 137 | 366 | 255 | 149 | 401 | 518 | 480 | 398 | 499 | 454 | 512 | 434 | 474 | 330 | 871 | 1719 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross | cross-on | on | cross-on | on | on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 11:06PM1.86m | 12:29PM1.38m | 11:54PM1.64m | 1:12PM1.41m | 00:44AM1.39m | 1:58PM1.43m | 1:45AM1.14m | 2:48PM1.44m | 3:09AM0.93m | 3:42PM1.45m | 5:11AM0.84m | 4:40PM1.47m | ||||||||
Low Tide | 5:04PM0.49m | 6:07AM-0.21m | 5:59PM0.50m | 6:44AM-0.03m | 7:01PM0.53m | 7:19AM0.16m | 8:13PM0.55m | 7:54AM0.37m | 9:43PM0.52m | 8:31AM0.55m | 11:24PM0.42m | 9:18AM0.71m | 00:41AM0.28m | |||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | 8:00 | — | — | 7:59 | — | — | 7:59 | — | — | 7:58 | — | — | 7:58 | — | — | 7:57 | — | — | 7:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 21 | 23 | 23 | 21 | 23 | 23 | 20 | 24 | 24 | 21 | 23 | 25 | 23 | 26 | 26 | 23 | 25 | 25 | 23 |
Feels °C | 24 | 22 | 23 | 23 | 21 | 23 | 23 | 22 | 24 | 24 | 22 | 23 | 24 | 24 | 25 | 24 | 23 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 7 | SW 15 | SW 18 | SW 18 | S 11 | S 13 | S 12 | S 12 | S 11 | SSW 16 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 15 | S 16 |
| kJ | 71 | 46 | 41 | 40 | 137 | 366 | 255 | 149 | 401 | 518 | 480 | 311 | 499 | 454 | 512 | 434 | 474 | 330 | 871 | 1719 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 19 | SW 14 | W 7 | S 12 | S 12 | SW 16 | SW 17 | SSW 17 | SSW 15 | SSW 15 | S 11 | SSW 16 | SSW 10 | SSW 9 | SSE 15 | SSE 14 | SSW 14 | W 6 |
| kJ | 121 | 106 | 181 | 74 | 23 | 99 | 98 | 125 | 400 | 493 | 398 | 398 | 235 | 334 | 128 | 86 | 167 | 336 | 325 | 58 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 19 | SW 14 | SW 18 | S 11 | W 7 | W 6 | SW 13 | W 6 | W 6 | W 5 | W 5 | SSW 20 | SSE 14 | SW 12 | SW 12 | SSW 8 | S 17 | SW 7 | SSW 14 |
| kJ | 46 | 126 | 74 | 83 | 40 | 22 | 12 | 44 | 12 | 12 | 8 | 9 | 75 | 39 | 35 | 65 | 46 | 217 | 23 | 257 |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSE 3 | SSE 3 | S 3 | — | — | — | — | — | — | — | — | W 5 | W 4 | — | WNW 4 | WNW 4 | W 4 | WNW 4 | — |
| kJ | 2 | 1 | 2 | 2 | — | — | — | — | — | — | — | — | 4 | 3 | — | 3 | 5 | 8 | 24 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 83 | 16 | 88 | 88 | 3 | 64 | 151 | 3 | 83 | 86 | 28 | 86 | 86 | 0 | 83 | 86 | 12 | 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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