Indian River Inlet Surf Forecast

Tide
โฑ๏ธs.
โšก๏ธkJ
Tijdzone:
America/New_York
Wind: SN UNITY Atmos
(20260425 20z)
Golven: SN UNITY WAVE
(20260425 20z)

Golfopbouw

Swell 1Swell 2Swell 3Wind waves

Indian River Inlet Surf Forecast Eigenschappen

Swell venster
NO - ZO
Swell hoogte
4ft - 8ft
Swell breekt over
Zand
Golftypes
Strand, Steiger
Golfrichtingen
Rechts, Links
Wind venster
ZW - WNW
Werkende getijden
Laag, Mid
Niveau
Gevorderde, Expert
Seizoenen
Herfst
Boardtypes
Shortboard, Funboard, Longboard, Fish, Bodyboard, Skimming, Bodysurfing

Indian River Inlet Surf Forecast Gids

Indian River Inlet is a surf spot located in Delaware known for its strong, sometimes unpredictable waves. It features both north and south sides, which can offer decent surf opportunities when other nearby locations are flat. Access to the beach is straightforward, but there's a fee for parking โ€“ $4 for Delaware-registered vehicles and $8 for out-of-state cars. The vibe can be a bit tense on good days, as surfers flock to this spot, so be prepared for some potential crowding, even when the waves aren't perfect.

The surf here can handle swell sizes between 4 to 8 feet (about 1.2 to 2.4 meters) and works best with southeast swells. When there's a good push in the water, you'll find that waves can break to the right or left, and they tend to create beach and jetty breaks over sand. The best time to hit the water is when the tide is low, low to mid, or mid, especially with a southwest or west wind. Conditions can vary, but this spot is best suited for intermediate to expert surfers, mainly due to the challenging nature of the shorebreak and rocky features.

On certain days, especially during autumn or when tropical storms are around, you can find some solid surf here. The paddling can be manageable, but keep in mind that certain swells might make it a bit of a workout. Watch out for the potential hazards like deep-water fishing near the inlet. Overall, when conditions align, Indian River Inlet can offer some fun sessions for surfers looking to challenge themselves.

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Readme

Welcome! If youโ€™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:

๐Ÿ”ฎ 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.

๐Ÿ’จ Wind section

The first row on the table (with the ๐Ÿ’จ icon) shows wind speed, direction and gust. The more the wind speed the more aggressive the color (from blue, green, orange to red).

๐ŸŒŠ 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 chooses the "dominant wave" using spot-adjusted surf energy (depth + directional fit). This is usually the first swell partition, but during local storms it can switch to wind waves. If that happens, values are shown in gray and italic.

๐ŸŒ’ 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 โ€” handy when arrows overlap.

Forecast Cheat Sheet

Short on time? Focus on wave energy. Itโ€™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.

Log your surf sessions to compare forecasts with real sessions and sharpen future predictions.

Models and Updates

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. Hereโ€™s the scale:

Perfect
Good
Average
Bad or No Data

Session logs also feed the algorithm โ€” the more you log, the smarter your forecasts get.

With Surfnerd, no more "you should have been here yesterday"

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.