Surf Forecasts:
Trestles (Uppers) surf forecast from 17 Jul 2026:
- Best quality surf: Sunday 19 Jul, 11PM (local time) - 4ft (1.2m), 12s period, S swell with glassy winds.
- Most powerful swell: Tuesday 21 Jul, 2AM (local time) - 4.5ft (1.4m), 13s period, SSW swell with 722 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 1.4m 13s and forecast to arrive on Tuesday (Jul 21) 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 Thursday (Jul 23) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 18th Jul) | 2ft (0.6m) 19s |
| Best Surf | 11PM (Sun 19th Jul) | 4ft (1.2m) 12s |
| Most Powerful | 2AM (Tue 21st Jul) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Hey, it's Rusty. Let's talk about the next 16 days at Trestles (Uppers). The water's sitting at 70°F right now, which is a touch warmer than normal for this time of year – nice little bonus.
First few days are a bit of a write-off. Friday 17th and Saturday 18th are small, messy, with cross-on winds. You're looking at 1.3ft to 2.6ft of weak, short-period slop. Not worth paddling out. Sunday 19th through Tuesday 21st stay marginal – tiny waist-high waves, still mostly cross-onshore, and the energy is all over the place. The combined energy creeps up into the 700-800 range but it's not translating into clean surf.
Wednesday 22nd and Thursday 23rd are poor – Wednesday gets a fresh cross-shore wind at 19 mph, making it choppy and lumpy. Thursday is a little better with light onshore winds, but the swell is still only 3.6ft, period 13 seconds, and the quality is questionable.
Then we start to see some life. Friday 24th morning brings a bump in energy (1199 combined) with 4.3ft S swell at 13 seconds, but the wind is cross-on. Not great, but closer. The real standout comes on Saturday 25th afternoon. That's when we get a 3.0ft SW swell with a very long 21-second period – proper groundswell, built for a reef and point like Trestles. The wind turns light cross-onshore, so
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 20°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 21°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
AM | 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 19 | SW 18 | SW 15 | SW 18 | SW 18 | S 11 | S 13 | SW 17 | S 12 | SSW 12 | SSW 16 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 13 | S 13 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 181 | 83 | 137 | 366 | 255 | 146 | 401 | 424 | 389 | 669 | 589 | 722 | 387 | 474 | 474 | 330 | 325 | 257 | 423 | 411 | 305 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross | glassy | on | on | cross |
High Tide | 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 | 7:14AM0.88m | 5:36PM1.51m | ||||||||
Low Tide | 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 | 10:30AM0.81m | 1:32AM0.15m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 7:59 | — | — | 7:59 | — | — | 7:58 | — | — | 7:58 | — | — | 7:57 | — | — | 7:57 | — | — | 7:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 23 | 23 | 21 | 24 | 24 | 22 | 25 | 25 | 24 | 26 | 26 | 24 | 24 | 25 | 22 | 25 | 26 | 22 |
Feels °C | 23 | 23 | 22 | 23 | 23 | 23 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 22 | 27 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | SW 15 | SW 18 | SW 18 | S 11 | S 13 | S 12 | S 12 | SSW 12 | SSW 16 | SSW 13 | SSW 10 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | W 7 | S 13 | S 13 | S 12 |
| kJ | 40 | 25 | 137 | 366 | 255 | 146 | 401 | 413 | 389 | 669 | 589 | 722 | 163 | 474 | 474 | 330 | 325 | 127 | 423 | 411 | 305 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 14 | W 7 | S 12 | S 12 | SW 16 | SW 17 | SW 17 | SSW 15 | SSE 14 | S 11 | SSW 17 | SSW 16 | SSW 9 | SSW 9 | S 14 | SSE 15 | SSE 14 | W 7 | W 7 | W 7 |
| kJ | 181 | 74 | 21 | 99 | 98 | 91 | 350 | 424 | 382 | 40 | 231 | 221 | 387 | 124 | 119 | 93 | 222 | 346 | 107 | 85 | 69 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 18 | S 11 | W 6 | W 6 | SW 13 | WNW 15 | WNW 15 | WNW 15 | WNW 14 | SSE 14 | SSE 14 | SW 13 | SW 11 | SSE 13 | SW 8 | SW 7 | SSW 14 | SSW 14 | SSW 13 | S 15 |
| kJ | 74 | 83 | 40 | 12 | 12 | 44 | 45 | 43 | 42 | 41 | 37 | 39 | 128 | 19 | 33 | 28 | 27 | 257 | 161 | 118 | 172 |
Wind waves Height (m) Direction Period (s) | S 3 | S 3 | — | — | — | — | — | W 5 | — | — | W 4 | — | — | — | — | W 4 | WNW 4 | — | — | — | — |
| kJ | 2 | 1 | — | — | — | — | — | 5 | — | — | 4 | — | — | — | — | 7 | 18 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 88 | 88 | 64 | 83 | 86 | 3 | 86 | 86 | 0 | 74 | 86 | 0 | 86 | 86 | 12 | 86 | 86 | 0 | 86 | 86 | 24 |
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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