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Live conditions

Trestles

United States ยท North America

Updated 43 min ago
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Type:point
Shelter:semi_exposed
Difficulty:intermediate
Tide:mid
Facing:SW

Forecast accuracy at Trestles

Not enough data yet. Log a session to help build the accuracy score.

Best time to go

No great windows in the next 2 days

Best available option is Tomorrow around 4pm (score: 54). Conditions are below the Good threshold but may still be surfable.

Crowd report

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Session journal

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Recent form

Last 20 days of logged conditions.

30-day average
4.7/10
Days firing
4
Score 6 or higher
Best day recently
6.8/10
11 May
Days logged
20

Historical averages

Best month to visit: January

50%+ offshore20-49% offshoreBelow 20%
Planning tool

Best time to visit Trestles

Combining historical conditions with school holiday crowd pressure to find the sweet spot.

Key insights

  • The best week for surf at Trestles is the week of 1 June (score 3/5) with low crowds.
  • Avoid the week of 13 July if you can due to Summer break and Winter break.

Best time to visit

2026
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
5: Sweet spot
4: Great time
3: Average
2: Below average
1: Avoid

Crowd calendar

How busy each week is based on school holiday overlap from feeder markets.

18 May
Quiet
25 May
Quiet
1 Jun
Very quiet
8 Jun
Very busy
15 Jun
Very busy
22 Jun
Very busy
29 Jun
Very busy
6 Jul
Very busy
13 Jul
Very busy
20 Jul
Very busy
27 Jul
Very busy
3 Aug
Very busy
10 Aug
Very busy
17 Aug
Very busy
24 Aug
Very busy
31 Aug
Quiet
7 Sept
Very quiet
14 Sept
Quiet
21 Sept
Quiet
28 Sept
Quiet
5 Oct
Quiet
12 Oct
Quiet
19 Oct
Quiet
26 Oct
Quiet
2 Nov
Quiet
9 Nov
Very quiet
16 Nov
Very quiet
23 Nov
Very busy
30 Nov
Very quiet
7 Dec
Quiet
14 Dec
Very busy
21 Dec
Very busy
28 Dec
Very busy
Very quiet
Quiet
Moderate
Busy
Very busy

School holidays affecting this destination

Summer holidays(Australia)
13 Dec - 26 Jan
Summer holidays(Australia)
18 Dec - 27 Jan
Summer holidays(Australia)
19 Dec - 28 Jan
Vacaciones de Navidad(Mexico)
19 Dec - 5 Jan
Ferias de Natal(Brazil)
20 Dec - 31 Jan
Vacances de Noel(France)
20 Dec - 5 Jan
Vacances d'hiver(France)
7-22 February
Presidents' Day weekend(United States)
14-16 February
Carnaval(Brazil)
14-18 February
Family Day / reading week(Canada)
14-22 February
February half-term(United Kingdom)
14-22 February
Vacances d'hiver(France)
14 Feb - 1 Mar
Vacances d'hiver(France)
21 Feb - 8 Mar
Spring break(United States)
14-22 March
March break(Canada)
14-22 March
Haru yasumi(Japan)
25 Mar - 6 Apr
Autumn break(Australia)
28 Mar - 12 Apr
Semana Santa(Mexico)
28 Mar - 12 Apr
Easter holidays(United Kingdom)
28 Mar - 12 Apr
Autumn break(Australia)
4-19 April
Vacances de printemps(France)
4-19 April
Autumn break(Australia)
11-26 April
Vacances de printemps(France)
11-26 April
Vacances de printemps(France)
18 Apr - 3 May
Golden Week(Japan)
29 Apr - 5 May
May half-term(United Kingdom)
23-31 May
Summer break(United States)
10 Jun - 25 Aug
Winter break(Australia)
27 Jun - 12 Jul
Summer holidays(Canada)
27 Jun - 1 Sept
Ferias de julho(Brazil)
1-31 July
Winter break(Australia)
4-19 July
Vacances d'ete(France)
4 Jul - 1 Sept
Vacaciones de verano(Mexico)
6 Jul - 17 Aug
Summer holidays(United Kingdom)
18 Jul - 1 Sept
Natsu yasumi(Japan)
21 Jul - 31 Aug
Obon(Japan)
13-16 August
Spring break(Australia)
19 Sept - 4 Oct
Spring break(Australia)
26 Sept - 11 Oct
Spring break(Australia)
3-18 October
Thanksgiving weekend(Canada)
10-12 October
Vacances de la Toussaint(France)
17 Oct - 2 Nov
October half-term(United Kingdom)
24 Oct - 1 Nov
Thanksgiving break(United States)
25-29 November
Summer holidays(Australia)
12 Dec - 25 Jan
Summer holidays(Australia)
18 Dec - 27 Jan
Christmas break(United States)
19 Dec - 3 Jan
Summer holidays(Australia)
19 Dec - 28 Jan
Christmas break(Canada)
19 Dec - 3 Jan
Christmas holidays(United Kingdom)
19 Dec - 3 Jan
Fuyu yasumi(Japan)
28 Dec - 3 Jan
How are these scores calculated?

The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).

Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.

Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.

Spot guide

This guide was generated from conditions data. Know this spot? Submit your own tips below.

## The spot Lower Trestles is one of the world's most celebrated high-performance waves, a symmetrical cobblestone point break in San Clemente that has hosted countless professional competitions. The wave breaks over a uniform delta of smooth river cobblestones deposited by San Mateo Creek, producing near-perfect A-frame peaks that offer both a racing right and a punchy left. The wave is a canvas for progressive surfing, rewarding technical rail work and aerial manoeuvres equally. ## When it works Trestles picks up swell from virtually every direction. South swells from April through October produce the classic right-hander, while north-west winter swells from November through March activate the left and the outside sections. The sweet spot is a 3-6ft south to south-west swell with a light east or north-east offshore wind. The wave works across the tide range but tends to be best on a mid-tide when the cobblestones provide maximum shape without too much backwash. ## Where to sit The main peak at Lowers is well-defined, sitting where the creek deposits meet the deeper water. The right peels for 100-150 metres along the cobblestone bank, offering multiple turn sections. The left is shorter but punchier. Uppers, a few hundred metres to the north, catches north-west swells better and is less crowded. Church, to the south, offers a mellower alternative. At Lowers, sit just outside the boil where the cobblestones create a visible disruption in the water surface. ## Hazards The cobblestone entry is painful on bare feet and treacherous when wet. Wear reef boots for the walk in and out. Rip currents can develop along the creek mouth after rain. The main hazard is honestly the crowd and the aggressive competition for waves. Stingrays inhabit the shallows during late summer. The creek outflow after heavy rain carries bacteria and should be avoided. ## Parking and access The walk in is the price of admission. Park at the San Onofre State Beach lot or the Carl's Jr lot on the inland side of the I-5, then walk approximately one mile down the dirt trail to the beach. The trail is flat but exposed to sun. No facilities exist at the beach itself. Carry water and sun protection. ## The crowd Lowers is one of the most crowded waves in the world. On any rideable day, expect 50-100 surfers in the water. Professional surfers train here daily and the standard is exceptionally high. The competition for waves is intense and patience is mandatory. Dawn patrol before 7am offers the best window for catching waves without a fight. Mid-week is marginally better than weekends. ## Local tips The right improves as the tide drops from high to mid. Time your session accordingly rather than battling the crowd at peak high tide when the wave is fat. Bring a board with extra volume for paddling power in the congested line-up. The walk in means you commit to at least a two-hour session, so fuel up beforehand. Watch the local pros for line selection; they read the A-frame peaks before anyone else and their positioning reveals where the next set will break.

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Frequently asked questions

How often is this page updated?

Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.

What is the luck factor?

We compare the 7-day forecast to the last 5 years of marine data for the same week at Trestles. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical late May.

How is 'best session' picked?

We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.

Where does the data come from?

Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).

Does the score capture local knowledge?

Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.

When is the best time to surf Trestles?

The best week for surf at Trestles is the week of 1 June (score 3/5) with low crowds.