Trails
Hourly
Confidence
Compare
⏱️s.
⚡️kJ
Saturday 08
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Tuesday 11
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Thursday 13
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Timezone: America/Los_Angeles
Wind: GFS (20251108 12z)
Waves: GFS WAVE (20251108 12z)

Trails surf guide

Trails is a laid-back surf spot located just west of I-5, about three miles of beachbreak waves at the bottom of the bluffs. It’s one of the more secluded spots around San Diego, giving you a bit of that 'wilderness' vibe. The area feels less crowded than other parts of the coast, making it a nice escape for surfers looking for some space on the waves. Most folks head to Trails 6 and 4, where you’ll find the better chances for decent surf.

For a fun surf session here, the ideal swells come from the Southwest. The waves break over sand, and you can expect to catch both lefts and rights. The best conditions typically hit when the swell sizes are around 1 ft (0.3 meters), so make sure to check the tide; mid tide is usually the sweet spot. When the winds are coming from the Northeast, it can set up some nice rides. Just keep in mind that although it's not a massive wave spot, it can still deliver some enjoyable sessions if the conditions align.

Getting there involves a hike down the bluffs, which helps keep the crowds down a bit. The area is bordered by Camp Pendleton Marine Corps Base, so there are stretches of beach where access is limited. This means you'll likely run into some military surfers enjoying their local waves. All in all, if you’re looking for a spot that’s a bit off the beaten path and offers a mix of fun and chill vibes, Trails might just fit the bill.

Surf reports and surf forecasts nearby Trails

Trails
California, United States
Beach break
Sat 8
Sun 9
Mon 10
Tue 11
Wed 12
Thu 13
Fri 14
Sat 15
Sun 16
Mon 17
Tue 18
Wed 19
Trails
California, United States
Beach break
Sat 8
Sun 9
Mon 10
Tue 11
Wed 12
Thu 13
Fri 14
Sat 15
Sun 16
Mon 17
Tue 18
Wed 19
San Onofre State Beach
California, United States
Reef break
Sat 8
Sun 9
Mon 10
Tue 11
Wed 12
Thu 13
Fri 14
Sat 15
Sun 16
Mon 17
Tue 18
Wed 19
Church
California, United States
Point break
Sat 8
Sun 9
Mon 10
Tue 11
Wed 12
Thu 13
Fri 14
Sat 15
Sun 16
Mon 17
Tue 18
Wed 19
Trestles - Lowers
California, United States
Reef break
Sat 8
Sun 9
Mon 10
Tue 11
Wed 12
Thu 13
Fri 14
Sat 15
Sun 16
Mon 17
Tue 18
Wed 19
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Confidence

Confidence tells you how much the weather models agree on the forecast.

  • High confidence: Models agree closely; forecast is reliable.
  • Medium confidence: Some disagreement; conditions may shift slightly.
  • Low confidence: Models diverge; treat forecast with caution.

We calculate the wind confidence by comparing wind speed, gust and direction from multiple models (like GFS, ECMWF, Arome, and Harmonie) and seeing how closely they match. For wave certainty we compare height, period and direction, also on multiple models. They are weighted, meaning that some models count more than others, depending on how good they are for a certain spot.

Readme

Welcome! If you’re new to surf forecasting, check out this quick guide.

Forecast Table

The forecast table (the section on the page with all the numbers) is designed to pack as much information in the screen as possible. Although intimidating at first, it will help you make informed decisions about the waves faster, trust me :D. The table consists of roughly four sections, time and predictions, wind, waves, and tides:

🔮 Time and predictions section

Here we show the forecast thour and the overall surf quality prediction. This is determined based on the wave, wind and tide quality prediction. These individual predictions can be found on the forecast map.

💨 Wind section

The first row on the table (with the 💨 icon) shows wind speed, direction and gust. The more the wind speed the more aggressive the color (from blue, green, orange to red).

🌊 Wave section

The waves section consists of three rows, one for wave height and direction, one for period and one for wave energy. Our algorithm choices the "dominant wave". This is normally the first swell partition, but with heavy local storms it displays the wind waves. If that's the case, we display the numbers in italic and in gray.

🌒 Tide section

The tide section consists of a row with the actual heights per hour (measured at the half hour) and a table that displays the flow of the tide and the extremes (lows and highs).

Forecast map

The forecast map consists of arrows. These arrows represent all wave partitions (swell partitions and wind wave partition) and the wind. This allows you to see things like: a secondary swell or wind waves messes up the surf, or the wind is just a tick offshore so very surfable. Click a metric label in the bottom left to bring that arrow to the front — handy when arrows overlap.

Forecast Cheat Sheet

Short on time? Focus on wave energy. It’s the best single metric to gauge how big and powerful the waves will be.

Click any table cell to jump to that forecast hour. The map will update with forecast arrows, so you can see if wind and swell direction are lining up.

Use the table sidebar to switch units for height and speed.

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Surfnerd blends multiple global and local wind and swell models using advanced interpolation and spatial techniques to create an "ensemble" forecast. Forecasts are refreshed hourly.

Surf Predictions

Our AI-driven algorithm scores surf quality, shown by green, orange, and gray dots. Each forecast hour is rated for wind, swell, and tide quality, then combined into an overall score. Here’s the scale:

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