Trestles (Lowers) Surf Break

Lat Long: 33.38° N 117.58° W

Trestles (Lowers) Surf Forecast and Surf Report

Issued: 10 pm 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Trestles (Lowers) sea temperature is
23.6° C
4.1° 

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


Trestles (Lowers) surf forecast from 31 Jul 2026:

  • Best quality surf: Friday 31 Jul, 11PM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Friday 31 Jul, 11AM (local time) - 4ft (1.2m), 14s period, SSW swell with 588 kJ wave energy.
  • Next surfable swell (1★+): Friday 31 Jul, 11PM (local time) - 2.5ft (0.8m), 14s period with SSW swell.

Best Forecast Surf Conditions for Trestles (Lowers) this week:

The surf forecast for Trestles (Lowers) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 31) at 11PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.8m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Trestles (Lowers) in the next 16 days are 1.2m 14s and forecast to arrive on Friday (Jul 31) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 31st Jul)2.5ft (0.8m) 14s
Best Surf11PM (Fri 31st Jul)2.5ft (0.8m) 14s
Most Powerful11AM (Fri 31st Jul)4ft (1.2m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cooking for the next couple of weeks.

Honestly, it’s a pretty flat and quiet run for the most part. We’re looking at a long stretch of small, weak swell and onshore or straight-on wind, which is going to make things tough. The best you can say is that there are a couple of windows where the conditions might just be borderline enough to get wet, but nobody’s calling this a classic spell.

The main spot to keep an eye on is Trestles (Lowers). It’s a very consistent, exposed beach and reef setup that loves a good SW swell, and that’s exactly what’s in the water. But the problem is the size – tiny. On Friday, July 31st, we start with a morning of 4 ft swell from the SSW with a period of 14 seconds. That’s a long-period groundswell, which means it’ll have some push, but at this size it’s going to be gutless. The wind is a 6 mph WSW cross-on, which is light but not clean. The combined swell energy is 646 (moderate), but the forecast says it’s marginal. The water temp is about average for the time of year, nothing unusual.

From there, it’s a real struggle. The rest of the first week and into the second week, the swell drops below 3 ft, and the wind stays either onshore or cross-on. Saturday morning, August 1st, has 2 ft from the SSW with a 6 mph onshore wind. It’s just poor. The combined energy falls to 245 (weak). This trend continues day after day – Sunday, Monday, Tuesday, all showing 1 ft to 2 ft swell with light onshore breezes. The energy readings are all in the low triple digits (122 to 203), which is pretty weak. We’re in a real dead zone.

There’s a slight flicker of life on Friday, August 7th, with a morning swell of 2 ft from the SSW, but the period jumps to 19 seconds. That’s a very long period, which is a classic groundswell. It’ll have energy (451, moderate) but at that size and with a 6 mph onshore wind, it’s still going to be a disappointment. The sets will be few and far between.

The pattern doesn’t improve much through the second week. Saturday, August 8th, through to Thursday, August 14th, we’re stuck with the same story: 2 ft to 3 ft swell, mostly from the SSW or SW, with periods ranging from 13 to 18 seconds. The wind is a constant light onshore or cross-on. The combined energy bumps up a bit on the 12th (591, moderate) and the 15th (501, moderate), but the wind is still cross-on, creating some chop. The morning of Saturday, August 15th, shows 3 ft from the SSW with a 16-second period and a 9 mph cross-on wind. It’s rated as marginal, not good.

Best on offer: Honestly, there’s no true standout here. If you’re desperate, the most promising window is the morning of Friday, July 31st, with that 4 ft, 14-second SSW groundswell at Trestles (Lowers). The light wind is a cross-on, so it won’t be glassy, but the longer period might give you a few clean lines. It’s marginal, but it’s the best of a bad bunch. The water is about average for the time of year.

For the rest of the period, it’s a long, flat grind. There are no gaps with zero recommendations, but the quality is so low that it’s essentially a write-off for decent surfing. The small swell and onshore wind mean it’ll be choppy and weak. This isn’t uncommon for the area during a quiet spell. Keep an eye on the charts, because it tends not to stay this poor forever.

Stay patient, and keep your board waxed for when the real swell shows up.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Fri afternoon, min 20°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Mon afternoon, min 21°C on Mon night). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
1
1
2
1
0
2
0
0
1
0
0
0
0
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
S
14
1.2
SSW
14
0.9
SSW
14
0.9
SSW
14
0.7
SSW
13
0.9
SSW
13
0.6
S
13
0.5
SW
14
0.5
SW
13
0.5
SW
13
0.5
SW
13
0.5
SW
13
0.4
SW
16
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.6
SW
14
0.6
SW
14
0.6
SW
14
Wave Graph
Metric surfscale
Energy kJ
674
588
322
261
173
289
119
91
88
83
82
91
91
84
77
75
162
127
125
Wind (km/h)
0
SSE
10
WSW
15
W
5
SW
10
SW
10
SSW
5
SSE
10
SSW
10
SW
5
SSE
10
SW
10
SW
5
SSE
15
SSW
10
SW
0
SSW
10
SW
10
WSW
5
WNW
Wind State
glassy
cross-on
cross-on
glassy
on
on
glassy
on
on
glassy
on
on
cross-on
on
on
glassy
on
on
cross
High Tide
9:59PM1.76m
11:17AM1.29m
10:31PM1.68m
11:45AM1.34m
11:06PM1.55m
12:14PM1.39m
11:46PM1.37m
12:48PM1.44m
00:36AM1.16m
1:29PM1.48m
1:54AM0.95m
2:22PM1.52m
4:05AM0.83m
Low Tide
5:03AM-0.09m
4:35PM0.55m
5:29AM-0.02m
5:17PM0.54m
5:54AM0.09m
6:05PM0.53m
6:19AM0.23m
7:05PM0.52m
6:45AM0.38m
8:25PM0.49m
7:15AM0.55m
10:07PM0.40m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:03
6:03
6:03
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:51
7:50
7:49
7:47
7:46
7:45
 mm
Temp °C
21
25
26
23
26
26
24
25
26
23
25
26
22
24
24
21
24
25
23
Feels °C
23
26
27
25
27
26
25
26
27
25
26
26
24
24
24
23
24
26
25
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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 (Lowers) Surf forecast

The above surf forecast table for Trestles (Lowers) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestles (Lowers) can be found by selecting the local surf guide option on the grey menu. Our Trestles (Lowers) 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 (Lowers)) 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 (Lowers) 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 (Lowers) 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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