Surf Forecasts:
Trestles (Uppers) surf forecast from 18 Aug 2026:
- Best quality surf: Monday 24 Aug, 5AM (local time) - 2ft (0.6m), 18s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 2PM (local time) - 3ft (0.9m), 16s period, SSW swell with 382 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.5m), 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 Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.8m and 6s. 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 0.9m 16s and forecast to arrive on Wednesday (Aug 19) at 2PM. 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+) | 11PM (Tue 18th Aug) | 1.5ft (0.5m) 16s |
| Best Surf | 5AM (Mon 24th Aug) | 2ft (0.6m) 18s |
| Most Powerful | 2PM (Wed 19th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.
The Lowdown
Alright, grab a coffee and settle in, because the next couple of weeks at Trestles (Uppers) are looking pretty flat and uninspiring. Honestly, this is a real bummer of a stretch for the best wave in the area. The water is sitting at 72° which is much warmer than normal for this time of year, so at least you won't need a thick wetsuit.
We've got a long, dry spell ahead. The first real chance of anything rideable doesn't show up until Tuesday morning, the 18th of August. Even then, it's a tiny 2 ft SSW groundswell with a long 16-second period. The combined energy is only moderate at 398, and the wind is light but on it. It's a marginal call, but you might find a longboard wave if you're patient. The rest of that week is a write-off – tiny, weak swell and poor conditions.
The weekend of the 22nd and 23rd is a total no-go. The swell drops out, and we're looking at poor surf conditions with the wind getting a little messy. We're in a real trough here.
The only glimmer of hope comes right at the end of the 16-day window, on Sunday, the 30th of August. The swell finally bumps up to a consistent 3 ft from the SSW, with a moderate 15-second period. The combined energy will be a moderate 474. It's still not perfect, but it's the best we've got. The wind is a bit of a gamble, but it might just come together. For a break that's very consistent and always crowded, this is a quiet period, but that won't matter if the waves are this small.
So, to be blunt, don't get your hopes up. The only real standout is the Sunday the 30th of August, but it's a long way out and the forecast is a bit of a distant promise. We'll be watching it.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 22°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat morning, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 232 | 243 | 246 | 377 | 314 | 246 | 239 | 236 | 173 | 139 | 137 | 98 | 106 | 165 | 218 | 127 | 155 | 213 | 197 | 179 | 224 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | cross-on | cross-on | cross-on | on | glassy | on | on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 1:28PM1.45m | 2:46AM0.87m | 2:22PM1.40m | 3:41PM1.37m | 8:16AM0.98m | 5:05PM1.40m | 8:13AM1.05m | 6:07PM1.49m | 8:24AM1.11m | 6:54PM1.59m | 8:38AM1.17m | 7:31PM1.68m | |||||||||
Low Tide | 8:50PM0.46m | 6:55AM0.73m | 10:43PM0.43m | 00:16AM0.32m | 9:51AM0.97m | 1:08AM0.21m | 11:54AM0.93m | 1:45AM0.11m | 12:49PM0.84m | 2:15AM0.03m | 1:27PM0.73m | 2:41AM-0.02m | |||||||||
 | |  | | | | | | | |  | | | | |  | | | | | | |
 | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — |
 | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:27 | — | — | 7:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 26 | 23 | 26 | 27 | 24 | 25 | 26 | 24 | 26 | 26 | 24 | 27 | 27 | 24 | 27 | 26 | 26 | 27 | 27 | 24 |
Feels °C | 25 | 27 | 24 | 27 | 27 | 27 | 26 | 27 | 26 | 27 | 26 | 26 | 28 | 27 | 25 | 28 | 26 | 27 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 6 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SW 18 | SW 17 | W 7 |
| kJ | 52 | 54 | 246 | 377 | 314 | 246 | 239 | 236 | 173 | 139 | 137 | 98 | 106 | 165 | 218 | 99 | 98 | 213 | 197 | 179 | 111 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 17 | W 6 | W 7 | W 6 | W 5 | W 6 | W 6 | W 6 | W 6 | W 6 | WNW 11 | W 7 | W 10 | WNW 10 | SW 19 | SW 18 | SW 18 | SSW 12 | S 13 | SW 17 |
| kJ | 232 | 243 | 50 | 59 | 40 | 21 | 26 | 16 | 10 | 12 | 12 | 40 | 24 | 49 | 32 | 127 | 155 | 199 | 61 | 82 | 224 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | S 9 | SW 20 | S 8 | SSW 18 | SW 19 | SW 19 | S 10 | SW 18 | SW 17 | SW 17 | SSE 10 | SSW 12 | SW 19 | SSW 16 | SSW 16 | SSE 10 | S 15 | S 15 | S 13 |
| kJ | 114 | 98 | 6 | 16 | 6 | 31 | 57 | 57 | 8 | 81 | 47 | 47 | 19 | 27 | 58 | 86 | 84 | 20 | 110 | 68 | 128 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | W 5 | W 6 | W 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 20 | 36 | 46 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 86 | 0 | 78 | 86 | 64 | 88 | 86 | 0 | 83 | 86 | 0 | 86 | 86 | 0 | 86 | 42 | 86 | 86 | 12 | 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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