Surf Forecasts:
Trestles (Uppers) surf forecast from 14 Sep 2026:
- Best quality surf: Friday 18 Sep, 5AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 2PM (local time) - 3ft (0.9m), 18s period, SW swell with 460 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 1.5ft (0.4m), 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 Sunday (Sep 13) at 8PM. The primary swell is predicted to be 0.4m and 19s period with a secondary swell of 0.7m and 8s. Another secondary swell of 0.5m and 13s is also forecast. 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 18s and forecast to arrive on Sunday (Sep 20) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 9s period and expected on Wednesday (Sep 16) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 13th Sep) | 1.5ft (0.4m) 19s |
| Best Surf | 5AM (Fri 18th Sep) | 2.5ft (0.8m) 14s |
| Most Powerful | 2PM (Sun 20th Sep) | 3ft (0.9m) 18s |
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 Trestles (Uppers) has in store for us over the next couple of weeks. Straight up, it's a bit of a slow period ahead, so we'll take what we can get.
First up, let's talk about the water. When we finally get a wave to ride, the water temperature is sitting at a balmy 72°F, which is much warmer than normal for this time of year. That's a solid 5° above the average, so you can definitely leave the thick rubber at home.
Now, for the surf itself. We're looking at a pretty long wait. The first few days are a write-off with poor conditions and small, messy swell. We'll see some small pulses of energy coming through, but the wind is a real issue, mostly cross-onshore and choppy.
Things start to look slightly more interesting around Friday the 18th. There's a bit more energy in the water (combined energy hitting 522), and we start seeing some cleaner windows with light onshore winds. The swell is still small, around 2ft from the SW, but the period gets up to 19 seconds. That's a proper long-period groundswell, which means better shape and longer lulls between sets – makes paddling out a bit easier. It's still marginal, but it's the best we've seen.
The weekend of the 19th and 20th is probably your best bet. Saturday morning and Sunday morning both have light onshore winds and the swell ticks up just a touch to 3ft - 3ft from the SW, with that long period hanging around 18 seconds. The combined energy is moderate, in the 500-600 range. It's not going to be pumping, but for a clean, long-period point wave, it'll be worth a paddle. Keep in mind, Uppers can get crowded, especially on a weekend with clean conditions, so expect plenty of company in the water.
After that, into the second week, the energy starts to fade. The swell drops back a bit and the winds get a little messier. There are a few more marginal windows with light winds, but nothing that really jumps out as a standout. Overall, it's a slow start, a brief window of fun, clean surf around the 18th and 19th, and then a fade-out.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 19°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 13 | SW 13 | W 9 | W 8 | W 10 | SW 17 | SW 16 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 88 | 87 | 181 | 146 | 150 | 147 | 127 | 127 | 114 | 386 | 310 | 291 | 196 | 172 | 242 | 303 | 303 | 234 | 379 | 375 | 375 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | on | cross | on | on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy |
High Tide | 10:44AM1.70m | 11:13PM1.36m | 11:11AM1.66m | 11:59PM1.17m | 11:38AM1.58m | 00:58AM0.99m | 12:07PM1.48m | 2:45AM0.87m | 12:46PM1.38m | 2:20PM1.29m | 7:59AM1.06m | 4:25PM1.30m | |||||||||
Low Tide | 5:15PM0.16m | 4:56AM0.41m | 5:59PM0.22m | 5:16AM0.57m | 6:51PM0.30m | 5:28AM0.72m | 8:00PM0.38m | 5:12AM0.84m | 9:44PM0.41m | 11:29PM0.35m | 9:58AM1.05m | 00:26AM0.26m | |||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 23 | 23 | 21 | 22 | 22 | 20 | 22 | 22 | 19 | 22 | 22 | 20 | 22 | 23 | 21 | 23 | 23 | 20 |
Feels °C | 23 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 23 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 7 | W 9 | W 8 | W 10 | WSW 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 12 | SSW 15 | SW 19 | SW 19 | W 6 | SW 18 | SW 18 | W 6 |
| kJ | 53 | 57 | 181 | 146 | 149 | 82 | 78 | 57 | 32 | 386 | 310 | 291 | 196 | 142 | 242 | 303 | 303 | 41 | 379 | 375 | 51 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | W 10 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSE 9 | S 9 | S 9 | S 10 | SSW 15 | SSW 10 | SSW 14 | SSW 13 | SSW 13 | W 6 | W 6 | SW 18 |
| kJ | 88 | 87 | 73 | 108 | 150 | 147 | 127 | 122 | 88 | 28 | 44 | 41 | 46 | 172 | 82 | 163 | 102 | 184 | 35 | 48 | 375 |
Swell 3 Height (m) Direction Period (s) | S 8 | SW 19 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | W 6 | W 6 | SSW 13 | S 12 | SW 14 | SW 21 | S 11 | S 10 | SW 19 | SSW 13 | SSW 13 | SSW 12 |
| kJ | 12 | 58 | 85 | 44 | 40 | 38 | 37 | 127 | 114 | 11 | 9 | 67 | 73 | 72 | 154 | 56 | 54 | 234 | 135 | 65 | 58 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 6 | — | — | W 6 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | 15 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 64 | 86 | 64 | 83 | 88 | 28 | 64 | 86 | 3 | 83 | 86 | 0 | 86 | 86 | 0 | 83 | 86 | 0 | 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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