Jack's
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Hourly
Timezone: America/Los_Angeles
โฑ๏ธs.
โšก๏ธkJ
Friday 17
Saturday 18
Sunday 19
Monday 20
Tuesday 21
Wednesday 22
Thursday 23
Tap a forecast cell to explore conditions on the map.

Jack's surf guide

Jack's is a popular surf spot located at 38th Avenue, appealing to a wide range of surfers due to its decent wave conditions and easy access. The area is known for its beautiful views and vibrant local surf culture. You can expect to find plenty of surfers in the water, especially on weekends, but it remains a go-to location throughout the year.

The surf here tends to be pretty good, especially during the winter months when the swell rolls in from the South, South-Southwest, and Southwest. It can handle swell sizes from 2 feet (0.6 meters) all the way up to 10 feet (3 meters), but itโ€™s best at low to mid tide. The waves break over a combination of sand and rock, showcasing both reef and point breaks. Youโ€™ll mainly find right-handers here. Ideal wind directions are from the West, Northwest, and North, which can make for some glassy conditions. The spot caters to surfers of all abilities, thanks to its varied wave sizes, so both beginners and intermediates can find something suitable.

Getting to Jack's is straightforward; you can park right by the cliff and take a short walk down the stairways. Just be aware that it's very crowded most of the time, with a local vibe that can be a bit edgy, particularly when the surf is good. Itโ€™s best to visit during the mid-week if you want to avoid the crowds. Keep an eye out for some hazards like longboarders, kelp, and sometimes even aggressive sea otters. Bring whatever board youโ€™re comfortable withโ€”shortboards, funboards, longboards, and fish are all welcome.

Surf reports and surf forecasts nearby Jack's

Beer Can Beach
California, United States
Beach break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Pleasure Point โ€“ The Hook
California, United States
Unknown break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Pleasure Point โ€“ Insides
California, United States
Unknown break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
The Hook - Sharks Cove
California, United States
Point break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Jack's
California, United States
Reef break, Point break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Pleasure Point โ€“ Second Peak
California, United States
Unknown break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Pleasure Point โ€“ First Peak
California, United States
Unknown break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Pleasure Point
California, United States
Reef break, Point break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Pleasure Point
California, United States
Point break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
26th Avenue
California, United States
Beach break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Wind certainty

Wind certainty tells you how much the weather models agree on the forecast.

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

We calculate this by comparing wind speed, gust and direction from multiple models (like GFS, ECMWF, Arome, and Harmonie) and seeing how closely they match. They are weighted, meaning that some models count more than others, depending on how good they are for a certain spot.

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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 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.

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"

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