Surf Forecasts:
Trestles (Uppers) surf forecast from 9 Aug 2026:
- Best quality surf: Sunday 9 Aug, 2AM (local time) - 3ft (0.9m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 2AM (local time) - 3ft (0.9m), 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 09) at 2AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.6m and 5s. 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 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 12s period and expected on Friday (Aug 14) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 3ft (0.9m) 16s |
| Best Surf | 2AM (Sun 9th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
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 on the menu for Trestles (Uppers) over the next couple of weeks.
Straight up, I gotta be honest with you – this is a tough one. The outlook for the next 16 days is pretty grim. The water is sitting at a very warm 75°, which is over 7° warmer than normal for this time of year, so it feels like a bath, but the waves just aren't cooperating.
For the first week, we're looking at a whole lot of nothing. From Saturday the 8th right through to the end of that week, the swell is tiny, mainly coming from the SSW at around 2ft to 3ft. The winds are mostly onshore or cross-onshore, which is just making it a messy, choppy mess. The combined wave energy is weak, ranging from 250 to 533 (moderate wave energy), but with the wind and size, it's just not worth paddling out for. The conditions are consistently described as "poor surf." It's a flat spell, plain and simple.
Moving into the second week, from the 14th of August onwards, there's a tiny flicker of hope, but it's faint. The swell picks up to a consistent 3ft to 3ft from the SSW, with periods around 15 to 16 seconds – so that's a long-period groundswell, which is good for a point break like Uppers. The combined energy climbs to a moderate 525 on the 16th, but the problem is the wind. It's coming from the W and WNW, keeping it cross-onshore and choppy. The best calls are "marginal surf forecast," which means it's a gamble on a lucky tide window.
There's no standout day here. Nothing is firing. The best of a bad bunch is probably the morning of Friday the 14th of August, with a 2ft SSW swell and a 16-second period, but the light onshore wind from the WSW will still have it bumpy. The energy is at 513 (moderate wave energy), but it's nothing to get excited about.
If you're desperate, the 14th of August might give you a few crumbly, slow waves, but you'll be sharing it with the inevitable crowds – this spot is *always* packed. For most, it's a week to work on the tan or the quiver. The setup is a reef and point, but with the wind and small swell, it's not doing anyone any favours.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun afternoon, min 22°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Tue afternoon, min 20°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 20 | SW 19 | SW 18 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph  | ||||||||||||||||||||
 kJ | 295 | 362 | 309 | 242 | 236 | 207 | 186 | 184 | 93 | 252 | 316 | 193 | 264 | 261 | 201 | 358 | 280 | 299 | 360 | 807 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | on | glassy | on | on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | on | glassy | on | cross-on | cross |
High Tide | 5:58PM1.80m | 8:13AM1.11m | 6:57PM1.93m | 8:47AM1.21m | 7:49PM2.03m | 9:21AM1.31m | 8:37PM2.07m | 9:55AM1.40m | 9:22PM2.03m | 10:28AM1.47m | 10:06PM1.92m | 11:02AM1.53m | 10:48PM1.74m | |||||||
Low Tide | 1:42AM-0.16m | 12:41PM0.74m | 2:27AM-0.29m | 1:39PM0.62m | 3:07AM-0.35m | 2:30PM0.50m | 3:44AM-0.35m | 3:17PM0.40m | 4:19AM-0.29m | 4:04PM0.34m | 4:52AM-0.17m | 4:50PM0.32m | ||||||||
 |  | | | | | | | | | | | |  |  | |  | | | | |
 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | 7:43 | — | — | 7:42 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 23 | 25 | 26 | 23 | 25 | 25 | 22 | 25 | 24 | 22 | 24 | 24 | 21 | 22 | 23 | 20 | 22 | 23 | 20 |
Feels °C | 24 | 25 | 26 | 26 | 25 | 26 | 25 | 23 | 26 | 24 | 23 | 25 | 24 | 23 | 23 | 23 | 21 | 23 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 18 | SSW 17 |
| kJ | 295 | 362 | 309 | 242 | 236 | 207 | 139 | 137 | 93 | 252 | 316 | 193 | 264 | 261 | 201 | 358 | 280 | 214 | 360 | 807 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | W 5 | W 5 | W 5 | SW 11 | SW 20 | SW 20 | SW 19 | SW 15 | SSW 12 | SSW 12 | S 13 | S 12 | S 11 | SSW 12 | SSW 10 | SSE 12 | SSW 18 | SW 14 | SSE 12 |
| kJ | 56 | 16 | 13 | 8 | 42 | 104 | 186 | 184 | 75 | 57 | 56 | 51 | 47 | 61 | 82 | 34 | 47 | 299 | 169 | 45 |
Swell 3 Height (m) Direction Period (s) | S 9 | SSW 12 | S 9 | SW 11 | SSW 11 | SSW 11 | SW 16 | SW 14 | SW 18 | SW 15 | S 13 | SW 13 | SW 13 | W 12 | S 12 | S 12 | SSW 20 | SSE 11 | SSE 11 | SW 11 |
| kJ | 14 | 56 | 6 | 30 | 24 | 12 | 39 | 33 | 82 | 75 | 29 | 44 | 62 | 11 | 42 | 43 | 149 | 40 | 40 | 30 |
Wind waves Height (m) Direction Period (s) | W 4 | — | — | — | — | — | WSW 11 | — | — | SSW 10 | — | — | — | — | W 6 | W 8 | — | — | W 7 | WNW 7 |
| kJ | 6 | — | — | — | — | — | 11 | — | — | 9 | — | — | — | — | 3 | 12 | — | — | 4 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 0 | 86 | 86 | 12 |
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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