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Create Profile →Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
We compare the 7-day forecast to the last 5 years of marine data for the same week at Dee Why. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical early July.
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
The best week for surf at Dee Why is the week of 2 November (score 3/5) with low crowds.
Small waves but still worth a paddle for keen surfers. Short-period wind swell: expect weak, crumbly faces. Heavy offshore making for difficult paddle-outs but textbook faces. Best conditions early morning before the sea breeze arrives. Not enough swell to get this spot firing properly.
Heads up: rocks exposed at low tide, and cold-shock risk.
Indicators derived from forecast data, not official warnings. Always check local lifeguard or official advice.
The air here is 85% cleaner than the average comparison city right now.
Significantly cleaner air than a typical city. Ideal for outdoor exercise with minimal respiratory strain.
Not a pollutant. Ozone is naturally higher at altitude and near the coast, and lower in cities where traffic exhaust breaks it down. High readings here typically indicate clean air. Can cause short-term airway irritation during intense exercise but is not linked to the long-term health risks of particulate pollution.
Additive health score: each pollutant contributes points relative to its WHO 2021 guideline and long-term health impact (PM2.5 9, NO₂ 5, O₃ 3, PM10 2, SO₂ 1 at WHO limits). Data via Open-Meteo. City markers show live readings. Red line marks the WHO guideline. Updated 21:00
Crystal clear water: ~20m visibility
This guide was generated from conditions data. Know this spot? Submit your own tips below.
Dee Why is a point break and beach break on Sydney's Northern Beaches. The point break (Dee Why Point) is a heavy right-hander breaking over a rock shelf at the south end of the beach. The main beach offers multiple peaks. It is one of Sydney's better waves when the point is working, producing fast, powerful rights with barrel sections.
Dee Why Point needs a solid north-east to east swell. A south-westerly wind is offshore for the point. Best at mid to high tide. The 4-6ft range is ideal for the point. The beach break works on any east or south-east swell. Year-round but best February through August.
The Point: take-off over the defined reef at the south end. The right runs along the rock shelf towards the beach. The beach: multiple peaks across the sand. Choose based on conditions.
The Point has shallow rock throughout. The wave is powerful and fast. Getting caught inside over the reef is serious. Blue bottles in summer. The beach break is safer with sandy bottom.
Street parking and a car park behind the beach. Direct access. Full suburban facilities. Part of Sydney's Northern Beaches with excellent infrastructure.
Busy. Sydney's Northern Beaches are heavily surfed. The Point attracts a hardcore local crew on good days. 20-30 people at the point on solid swells. The beach spreads people out more.
Dee Why Point is a serious wave that demands respect. The local crew have surfed it for years and expect priority. Start on the beach break and observe the point before paddling there. The rock pool at the south end is excellent. The Northern Beaches have dozens of options within 10 minutes in either direction.
Surf at Dee Why
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Daily scores over the last 12 months at Dee Why
Based on historical weekly averages
Conditions at Dee Why tend to be best between 08:00 to 11:00 in July.
Average score during this window: 38/100
See timing scores, school holiday busyness, and lift pass pricing to find the best time to book.
View Best Time to Go →Combining historical conditions with school holiday crowd pressure to find the sweet spot.
The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).
Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.
Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.
Last 31 days of logged conditions.
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