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Surf forecast for Blowing Rocks

Tide
⏱️s.
⚡️kJ
Timezone:
America/New_York
Forecast updated:
19/06, 14:00
Wind: SN UNITY Atmos
(20260619 12z)
Waves: SN UNITY WAVE
(20260619 18z)
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Timeline

Tomorrow Sat 20/06 to Sun 21/06
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Blowing Rocks Surf Forecast Guide

Blowing Rocks is located along a striking coastline featuring limestone outcroppings that give the spot its name. The most impressive sight here is when a sizable swell hits, causing geysers of whitewater to spout dramatically through the rocks. This spot isn't the most consistent surf destination and is best appreciated for its scenery, particularly for those who enjoy watching the natural beauty of the area. If you’re looking to surf here, keep in mind that it's known to be tricky and can be an unpleasant experience for beginners.

The surf at Blowing Rocks can offer some unique conditions, especially during strong swells. It typically works best with north to northeast swells and can handle sizes from around 4 feet (1.2 meters) up to 10 feet (3 meters). The waves generally break left over a shallow reef, which can be quite gnarly, so be prepared for some potential bumps and bruises. Offshore winds from the south to northwest can help create barrels, but watch out for the shallow reef, as it can catch you off guard. For those looking to paddle out, it’s fairly easy on typical days but expect it to be challenging when the swell picks up.

Access to Blowing Rocks is straightforward, which is a plus for surfers. Crowds are usually minimal, giving you some space to enjoy the waves, but the local vibe isn't really defined. The ideal tides for surfing here are from mid to high, particularly during the fall to spring months when conditions are more promising, especially during hurricane swells. This spot is suited for intermediate to expert surfers, so keep that in mind if you decide to hit the water.

Surf spots near Blowing Rocks

Blowing Rocks
Florida, United States
Reef break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Coral Cove Park
Florida, United States
Beach break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Jupiter Inlet South Jetty
Florida, United States
Unknown break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Civic Center
Florida, United States
Unknown break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Corners
Florida, United States
Unknown break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24

Frequently asked questions

What are good surfing conditions for Blowing Rocks?

Blowing Rocks is usually best with north-northeast to east-northeast (NNE-ENE) swell around 1.2 m / 4 ft to 3 m / 10 ft, wind from south through west-southwest to northwest (S-WSW-NW), with west-southwest (WSW) offshore, and mid to high tide.

Where is the surf spot Blowing Rocks?

Blowing Rocks is a surf spot in Jupiter Island, Florida, United States.

What is the surf break like at Blowing Rocks?

Blowing Rocks is a left reef break over rock. Expect a quiet crowd and a reserved lineup.

What season is best for surfing Blowing Rocks?

The main surf season at Blowing Rocks is spring, autumn, and winter.

What surfing skill level is Blowing Rocks suitable for?

Blowing Rocks can suit intermediate and expert surfers.

Is Blowing Rocks beginner friendly for surfing?

Blowing Rocks is better suited to intermediate and expert surfers.

What surfboards work at Blowing Rocks?

Shortboard is a common choice at Blowing Rocks.

What surf spots are near Blowing Rocks?

Other nearby surf spots are Coral Cove Park, Jupiter Inlet South Jetty, Civic Center, and Corners.

What swell direction works for surfing at Blowing Rocks?

Blowing Rocks can work with swell from north-northeast to east-northeast (NNE-ENE).

What swell size works for surfing at Blowing Rocks?

Blowing Rocks usually works with swell around 1.2 m / 4 ft to 3 m / 10 ft.

What wind direction is best for surfing at Blowing Rocks?

Blowing Rocks usually works with wind from south through west-southwest to northwest (S-WSW-NW); west-southwest (WSW) is offshore.

What wind direction is offshore for surfing at Blowing Rocks?

West-southwest (WSW) is offshore at Blowing Rocks.

What tide works best for surfing at Blowing Rocks?

Blowing Rocks works best around mid to high tide. A rising tide is usually better here.

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 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.

🌒 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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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. Here’s the scale:

Perfect
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Average
Bad or No Data

Session logs also feed the algorithm — the more you log, the smarter your forecasts get.

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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.
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  • 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.