Surfnerd Logo

Surf forecast for Port Denison

Tide
⏱️s.
⚡️kJ
Timezone:
Australia/Perth
Forecast updated:
20/06, 02:00
Wind: SN UNITY Atmos
(20260619 12z)
Waves: SN UNITY WAVE
(20260619 12z)
Join Surfnerd to check this forecast
Create a free account to check forecasts, set your home spot, save spots and log surf sessions.
Sign up with AppleSign up with Google

Timeline

Unlock 3 more days in the timeline
More surf windows and day entries continue below

Port Denison Surf Forecast Guide

Port Denison is a surf spot located along the coast, known for its uneven reef and decent waves. The break is outside the long breakwall and is generally best with South-West swells, making it a popular choice for local surfers. The area has a laid-back vibe, perfect for surfers looking to catch some fun waves without too much hassle. Access is straightforward, but you'll find it gets a bit crowded when the swell is on.

The surf at Port Denison mainly produces lefts breaking over the reef, and it’s suitable for intermediates who are looking for a bit more power without the heavy intimidation. On good days, the waves can reach around 4ft (about 1.2 meters) and provide long rides. The best time to surf here is with East winds and during low to mid tides, which help improve the wave shape. However, it typically needs a solid winter pulse to really get firing, and you'll want to be prepared for some rip currents out there.

Getting to the break requires a long walk over spiky reef, so be careful with your feet. While there’s a good chance to score quality surf, sometimes you might find it fickle, depending on conditions. You can see crayfish boats heading out to the nearby islands, and many surfers are aboard searching for the right spot to surf while fishing and diving opportunities are top-notch. If you’re keen to explore the more remote breaks around here, consider chartering a boat or even a seaplane, but make sure you have someone knowledgeable with you.

Surf spots near Port Denison

Sunset Beach
Western Australia, Australia
Beach break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Tarcoola
Western Australia, Australia
Beach break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Hell's Gate
Western Australia, Australia
Reef break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Flat Rock
Western Australia, Australia
Beach break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Port Denison
Western Australia, Australia
Reef break
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24

Frequently asked questions

What are good surfing conditions for Port Denison?

Port Denison is usually best with swell from south to west (S-W), ideally southwest (SW) around 1.2 m / 4 ft to 3.7 m / 12 ft, east (E) offshore wind, and any tide.

Where is the surf spot Port Denison?

Port Denison is a surf spot in Port Denison, Western Australia, Australia.

What is the surf break like at Port Denison?

Port Denison is a left reef break over uneven reef. Expect a moderate crowd.

What surfing skill level is Port Denison suitable for?

Port Denison can suit intermediate surfers.

Is Port Denison beginner friendly for surfing?

Port Denison is better suited to intermediate surfers.

How consistent is the surf at Port Denison?

Port Denison has moderate surf consistency for Western Australia, Australia.

Is there parking for surfing at Port Denison?

Parking around Port Denison: free parking and car park.

What surf spots are near Port Denison?

Other nearby surf spots are Flat Rock, Tarcoola, Hell's Gate, and Sunset Beach.

What swell direction works for surfing at Port Denison?

Port Denison can work with swell from south to west (S-W); southwest (SW) is usually best.

What swell size works for surfing at Port Denison?

Port Denison usually works with swell around 1.2 m / 4 ft to 3.7 m / 12 ft.

What wind direction is best for surfing at Port Denison?

East (E) offshore wind is usually best at Port Denison.

What wind direction is offshore for surfing at Port Denison?

East (E) is offshore at Port Denison.

What tide works best for surfing at Port Denison?

Port Denison can work on all tides. A rising tide is usually better here.

Share

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.

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. Here’s the scale:

Perfect
Good
Average
Bad or No Data

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

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

Open in the app

Scan the QR code to open the Surfnerd app

Surfnerd Logo
Never miss a good surf again
  • See what's coming the next 15 days
    Plan ahead so you know which days to keep free.
  • Know the power of the waves
    Wave energy shows you what the wave actually feels like.
  • See every swell hitting your spot
    Know when swells combine for better waves, or when a cross-swell messes things up.
  • Trust the forecast before you commit.
    Compare multiple models to know when conditions are locked in.
Cancel anytime. Automatically renewed until cancelled
By purchasing the product, you accept the Terms of Use & acknowledge the Privacy policy.
Surfnerd Logo

Login to your Surfnerd account

Log your sessions, save your favorite spots, and keep your surf forecast personalized.

Log in with AppleLog in with Google
Join Surfnerd for free
  • Save favorite spots
  • Set home spot
  • Log surf sessions
Sign up with AppleSign up with Google
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.