
Surf Forecasts:
Trestles (Uppers) surf forecast from 20 Jul 2026:
- Best quality surf: Thursday 23 Jul, 2AM (local time) - 5ft (1.6m), 14s period, S swell with glassy winds.
- Most powerful swell: Monday 27 Jul, 11AM (local time) - 4.5ft (1.3m), 18s period, SSW swell with 1,056 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 8PM (local time) - 3ft (0.9m), 16s 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 Monday (Jul 20) at 8PM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.9m 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 1.3m 18s and forecast to arrive on Monday (Jul 27) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 20th Jul) | 3ft (0.9m) 16s |
| Best Surf | 2AM (Thu 23rd Jul) | 5ft (1.6m) 14s |
| Most Powerful | 11AM (Mon 27th Jul) | 4.5ft (1.3m) 18s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get straight into it for this stretch of coast, focusing on the one spot we've got a good read on: Trestles (Uppers).
We're looking at a pretty drawn-out and, frankly, sub-par run of waves for the next 16 days. The overall pattern is one of persistent, weak, onshore-angled swell, with a lot of onshore or cross-onshore wind messing up the surface. The water is a wild 72° right now, which is a massive 6° warmer than usual for this time of year. It's like surfing in a bathtub, which is very unusual.
The first few days are a write-off. Monday the 20th through Thursday the 23rd are just a struggle. The swell is tiny, around 3ft to 3ft, and it's coming from the SSW or S with a short, weak period. The wind is mostly onshore from the SW, making it bumpy and unappealing. The combined wave energy is weak to moderate (around 541 to 893), and the scores are bottom of the barrel. Best to save your energy.
There's a bit of a glimmer on Friday the 24th. The wind finally goes light and onshore, with the swell holding at 4ft to 5ft from the SSW. The energy jumps up (1304), which is a sign of moderate, workable power. Saturday the 25th brings a super long period groundswell of 21 seconds from the SSW, but the height is tiny at 3ft. That long period will make it incredibly straight and walled-up at Uppers, which is a reef and point setup, so it might actually offer some decent, long walls if the tide is right. The morning wind is light onshore, but the afternoon gets a bit cross-onshore.
The best window actually looks like the stretch from the 25th of July right through to the 31st. The swell holds between 3ft and 4ft, all from the SSW or SW, with solid periods (15-19 seconds). The wave energy is consistently moderate to strong (806 to 1168). The winds are light, mostly cross-onshore, which will keep it from being perfect, but it'll be clean and rideable. The morning of Thursday the 30th has the best wind call of the whole run, with a light onshore breeze and the swell at 4ft. It's not pumping, but it's the most consistent, manageable surf we'll see.
Then it all fades out. The first week of August is a total bust. Swell drops to 1ft to 2ft, period is short, and the energy is pathetic (136 to 277). The wind is either onshore or cross-onshore, and the conditions are consistently 'poor'. It's a full-on, flat spell.
So, the standout here is the entire week from Friday the 24th of July through to Thursday the 30th of July. It's not a classic, but it's the most consistent, cleanest run of waves in a very long, drawn-out forecast. The best pick is likely Thursday the 30th morning, with the lightest wind and decent 4ft SSW swell. For a break that's very consistent, it's a surprisingly quiet period. It won't stay this poor for long, but right now, we're in a waiting game.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 25°C on Wed afternoon, min 21°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu afternoon, min 21°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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) | SSW 15 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | SSW 13 | SSW 13 | SW 21 | SSW 21 | SW 21 | SSW 19 | SW 19 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
298 | 367 | 334 | 519 | 474 | 559 | 400 | 399 | 946 | 772 | 683 | 782 | 669 | 590 | 664 | 584 | 445 | 1004 | 863 | 628 | 719 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross-on | on | on | glassy | on | cross-on | glassy | on | cross-on | cross |
High Tide | 2:48PM1.44m | 3:09AM0.93m | 3:42PM1.45m | 5:11AM0.84m | 4:40PM1.47m | 7:14AM0.88m | 5:36PM1.51m | 8:16AM0.96m | 6:26PM1.57m | 8:48AM1.02m | 7:09PM1.64m | 9:12AM1.07m | 7:47PM1.70m | ||||||||
Low Tide | 9:43PM0.52m | 8:31AM0.55m | 11:24PM0.42m | 9:18AM0.71m | 00:41AM0.28m | 10:30AM0.81m | 1:32AM0.15m | 11:48AM0.85m | 2:10AM0.05m | 12:47PM0.83m | 2:43AM-0.03m | 1:32PM0.78m | 3:13AM-0.08m | ||||||||
5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | |
— | 7:58 | — | — | 7:57 | — | — | 7:57 | — | — | 7:55 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 22 | 24 | 24 | 22 | 24 | 25 | 22 | 25 | 26 | 22 | 25 | 25 | 22 | 25 | 25 | 24 | 27 | 27 | 24 |
Feels °C | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 25 | 26 | 28 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 19 | SW 19 | SW 18 | SW 18 |
235 | 231 | 334 | 519 | 474 | 559 | 400 | 399 | 946 | 772 | 683 | 782 | 669 | 590 | 492 | 387 | 333 | 1004 | 863 | 628 | 719 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SW 16 | S 10 | S 9 | SSW 9 | S 8 | S 16 | SSW 14 | W 6 | W 6 | SW 26 | W 6 | W 7 | W 6 | SW 21 | SSW 21 | SW 21 | SSW 12 | W 7 | SSW 11 | W 7 |
298 | 367 | 122 | 74 | 84 | 33 | 177 | 325 | 60 | 38 | 171 | 78 | 72 | 37 | 664 | 584 | 445 | 265 | 57 | 135 | 32 | |
Swell 3 Height (m) Direction Period (s) | W 5 | W 5 | SW 13 | SW 12 | SSE 12 | W 4 | W 6 | SSW 8 | SW 19 | SW 6 | SW 6 | SW 26 | SW 24 | SSW 24 | W 6 | W 7 | W 7 | W 6 | SSW 11 | W 7 | SSW 11 |
8 | 4 | 175 | 37 | 31 | 6 | 15 | 22 | 131 | 10 | 9 | 171 | 563 | 368 | 36 | 61 | 44 | 37 | 138 | 43 | 78 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 4 | W 4 | — | W 5 | WNW 6 | — | W 6 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | 3 | 9 | — | 20 | 64 | — | 30 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 86 | 1 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 86 | 86 | 86 | 0 | 83 | 64 | 0 | 86 | 86 | 64 |
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.










