Trestles (Uppers) Surf Break

Lat Long: 33.38° N 117.59° W

Trestles (Uppers) Surf Forecast and Surf Report

Issued: 4 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Uppers) sea temperature is
22.6°C
2.8° 

Trestles (Uppers) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Trestles (Uppers) surf forecast from 28 Aug 2026:

  • Best quality surf: Friday 28 Aug, 2AM (local time) - 2ft (0.6m), 18s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 867 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 2AM (local time) - 2ft (0.6m), 18s 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 Friday (Aug 28) at 2AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.9m and 10s. 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 29) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 13s period and expected on Monday (Aug 31) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 28th Aug)2ft (0.6m) 18s
Best Surf 2AM (Fri 28th Aug)2ft (0.6m) 18s
Most Powerful 2AM (Sat 29th Aug)4ft (1.2m) 17s

Table - best surf conditions forecast for Trestles (Uppers) over the next 16 days.


The Lowdown

G'day, I'm Rusty. Let's have a look at what's on the cards for Trestles (Uppers) over the next couple of weeks.

Right now, the water temp is sitting at 73°, which is much warmer than normal for this time of year – a good sign you can leave the thick wetsuit at home.

Alright, so we've got a bit of a flat spell to start. There's nothing worth paddling out for from Thursday the 27th of August through to Tuesday the 1st of September. It's pretty much all marginal or poor surf, with light onshore breezes and small, weak swell. Not worth the drive.

Things start to show a little pulse from Wednesday the 2nd of September. Still not a standout, but we see the swell building a touch. Wednesday morning brings a 4ft S swell with a 12-second period, light onshore wind, and moderate energy (582). The afternoon gets a bit better: 4ft from the SSW, period bumping to 13 secs, but the wind swings cross-onshore, making it choppy.

Thursday the 3rd of September sees a similar size – 5ft SSW swell all day, periods around 14 seconds. Morning has light cross-onshore wind and a bit of ripple, but it's got decent energy (862). The afternoon stays the same size but the wind picks up a notch, making it a bit messy. It's marginal at best.

Friday the 4th of September is a tease. The morning glass off with a 5 km/h WSW wind is the best wind we've seen. Swell is 3ft from the SSW, period 17 seconds, and the energy is up at 844. If you can get out early, it might be your best bet – that long-period groundswell will have some push, but watch out, it might be a bit too lined up for the beach. The afternoon goes cross-onshore and turns to junk.

Saturday the 5th and Sunday the 6th are back to ho-hum. 3 to 4ft SSW swell, but cross-onshore winds keep it chopped out. Not worth a session unless you're desperate.

Now, here's the one that catches my eye. Monday afternoon the 7th of September goes glassy. The wind drops to nothing, and it's a 3ft SSW groundswell with a 15-second period and solid energy (469). Conditions will be super clean – if you can get out then, you'll be sliding on a mirror. That's your best window.

Tuesday the 8th of September morning brings a proper score. We're getting a 3ft SSW swell, 14-second period, and for the first time in ages, a clean offshore wind from the NE at 6 mph. That wind will groom the waves beautifully. Energy is pumping at 555. This is the standout of the whole 16-day run. It won't be huge, but those lines will be perfect. Just be aware, crowds are always around here – you'll have company.

The rest of the second week fades. Wednesday the 9th and Thursday the 10th drop off in size and quality, with onshore or cross-onshore winds and only occasional marginal moments. Friday the 11th of September is more of the same – small, messy, and not worth a special trip.

So, in a nutshell: the first few days are dead. There's a brief, average window around the 3rd and 4th, but the real highlight is Tuesday morning the 8th of September. Glassy, offshore, clean lines – that's the one to circle on your calendar. Everything else is pretty forgettable.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Thu afternoon, min 22°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Tue night. Warm (max 25°C on Sun afternoon, min 21°C on Sun night). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
1
2
2
1
1
2
1
1
1
0
0
2
0
0
1
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
S
11
0.6
SSW
18
0.8
SSW
16
0.6
SSW
19
1.2
SSW
17
1
SSW
17
1.2
SSW
16
1.2
SSW
16
1.1
SSW
15
1
SSW
14
0.9
SSW
14
0.8
SSW
14
0.7
SSW
14
0.8
SSW
13
1
S
11
1.1
S
11
1.1
S
12
1.2
S
12
1.3
SSW
13
1.2
SSW
12
Wave Graph
Metric surfscale
Energy kJ
272
204
347
289
867
587
733
706
537
400
321
229
166
198
242
289
350
439
506
447
Wind (km/h)
10
SW
5
SSE
10
SW
10
SW
5
SSE
15
SW
15
W
10
S
15
SSW
10
SW
5
SSE
10
SW
15
W
5
NW
10
W
20
WNW
15
NW
10
SW
10
WNW
10
WNW
Wind State
on
glassy
on
on
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
glassy
cross-on
cross
cross
on
cross-on
cross-on
High Tide
9:09PM1.77m
10:01AM1.45m
9:43PM1.71m
10:26AM1.52m
10:18PM1.61m
10:52AM1.58m
10:57PM1.45m
11:20AM1.62m
11:42PM1.26m
11:53AM1.63m
00:41AM1.06m
12:34PM1.62m
2:20AM0.88m
Low Tide
3:09PM0.45m
3:55AM-0.04m
3:45PM0.38m
4:19AM0.02m
4:23PM0.33m
4:43AM0.13m
5:04PM0.29m
5:06AM0.26m
5:52PM0.28m
5:29AM0.41m
6:51PM0.30m
5:52AM0.58m
8:11PM0.32m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
rain showers
light rain
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:22
7:21
7:19
7:17
7:16
7:15
7:14
 mm
5
2
Temp °C
28
25
28
28
25
28
27
24
25
25
22
24
24
22
25
25
25
23
24
23
Feels °C
31
29
30
30
28
29
27
27
24
24
24
24
23
23
24
23
22
25
26
24
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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