Surf Forecasts:
Long Reef surf forecast from 15 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 6ft (1.9m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 4PM (local time) - 6.5ft (2.0m), 10s period, ENE swell with 834 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 1AM (local time) - 6ft (1.9m), 10s period with ENE swell.
Best Forecast Surf Conditions for Long Reef this week:
The surf forecast for Long Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 20) at 1AM. The primary swell is predicted to be 1.9m and 10s period with a secondary swell of 0.7m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Long Reef in the next 16 days are 2.0m 10s and forecast to arrive on Sunday (Jul 19) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Saturday (Jul 18) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 20th Jul) | 6ft (1.9m) 10s |
| Best Surf | 1AM (Mon 20th Jul) | 6ft (1.9m) 10s |
| Most Powerful | 4PM (Sun 19th Jul) | 6.5ft (2.0m) 10s |
Table - best surf conditions forecast for Long Reef over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve been sifting through the charts for your local patch. At first glance, Wednesday arvo ain’t offering much – the 8ft southerly swell is blown out by a 16 mph cross-breeze, and it’s a messy, lumpy affair. The short 9-second period doesn’t help either. In fact, the first few days are a write-off. Thursday morning’s a bit cleaner with a cross-offshore wind, but the swell is dropping and the period is short, so it’s all a bit average. We’ve got a gap of poor conditions until Monday the 20th, which is where the real story begins.
The standout session in this whole 16-day window is Monday morning, July 20th, at Long Reef (Reef). The breeze is glassy – dead calm from the west – and the swell is a solid 6ft from the east-northeast, with a 10-second period. The combined energy is moderate (788), and it’s going to be clean, glassy, and lined up. This is a proper reef break, so that longish period will wrap in nicely, and the offshore wind will have it looking like a postcard. Crowds are possible here, so get in early.
The water temperature is sitting around 64°, which is about average for July, so nothing unusual there.
If you miss Monday morning, the rest of the first week is marginal. Tuesday morning is still okay – 5ft, clean cross-shore breeze – but it’s not the same quality. Thursday the 22nd has a morning offshore window with 4ft, but it’s smaller.
Looking further ahead, the big news is the pulse arriving around Tuesday the 28th. It’s a solid 7ft southerly swell on Tuesday morning, building to 10ft (1468 combined energy) by Tuesday afternoon – that’s strong wave energy. But it’s also over 8ft, so this is for experts only. The wind is cross-offshore, keeping it clean, but the period is short (9-10 seconds), so it’ll be a bit lumpy. Still, it’s a long-range call and a bit less certain.
Then Thursday the 30th morning looks like a hidden gem: 6ft from the south with a longer 11-second period, and a light offshore from the west-northwest. The combined energy is strong (937), and the setup is clean. That’s a very promising session, but it’s way out there, so keep your fingers crossed.
Overall, the best on offer is Monday the 20th morning – glassy, clean, and solid. After that, keep an eye on the 30th for a possible late-run bonus.
Rusty
Short Range ForecastModerate rain (total 17mm), heaviest on Thu night. Very mild (max 16°C on Thu afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the S on Thu morning, light winds from the S by Fri night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Sat night, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 9 | S 7 | S 8 | S 8 | S 7 | S 6 | E 6 | S 10 | S 10 | E 8 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1015 | 427 | 652 | 510 | 147 | 78 | 62 | 138 | 158 | 164 | 480 | 833 | 834 | 726 | 641 | 596 | 584 | 543 | 464 | 455 | 325 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-off | cross | cross-on | off | off |
High Tide | 8:54PM1.82m | 9:46AM1.19m | 9:43PM1.75m | 10:34AM1.22m | 10:30PM1.64m | 11:22AM1.24m | 11:17PM1.49m | 12:10PM1.25m | 00:04AM1.32m | 1:00PM1.27m | 00:55AM1.15m | 1:52PM1.28m | 1:52AM1.02m | ||||||||
Low Tide | 3:44AM-0.06m | 3:16PM0.25m | 4:29AM-0.02m | 4:09PM0.28m | 5:12AM0.05m | 5:03PM0.34m | 5:53AM0.13m | 6:01PM0.41m | 6:32AM0.23m | 7:04PM0.47m | 7:12AM0.32m | 8:14PM0.51m | 7:55AM0.40m | ||||||||
 |  |  |  |  | | | | | | | | | |  | |  | | | | | |
 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 |
 | 5:02 | — | — | 5:04 | — | — | 5:04 | — | — | 5:05 | — | — | 5:06 | — | — | 5:06 | — | — | 5:07 | — | 5:07 |
mm | — | — | 1 | 4 | 8 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 18 |
Feels °C | 10 | 10 | 9 | 11 | 13 | 13 | 14 | 14 | 12 | 12 | 14 | 12 | 14 | 15 | 13 | 12 | 13 | 13 | 15 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | S 17 | S 15 | S 18 | S 18 | S 7 | S 6 | E 6 | E 7 | E 7 | E 8 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 5 | 5 | 6 | 25 | 147 | 78 | 62 | 85 | 123 | 164 | 480 | 833 | 834 | 726 | 641 | 596 | 584 | 543 | 464 | 455 | 325 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 18 | S 18 | E 8 | S 6 | S 10 | S 21 | S 10 | S 9 | S 17 | S 16 | S 13 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 |
| kJ | — | — | — | 61 | 59 | 19 | 33 | 138 | 34 | 45 | 23 | 94 | 124 | 160 | 138 | 136 | 84 | 56 | 32 | 31 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 8 | S 16 | S 8 | S 21 | S 19 | S 19 | S 19 | S 8 | S 8 | SE 16 | SE 15 | SE 15 | SE 14 | S 14 | SE 14 | S 14 | — |
| kJ | — | — | — | — | 10 | 19 | 20 | 8 | 7 | 30 | 109 | 20 | 10 | 10 | 9 | 9 | 8 | 4 | 7 | 4 | — |
Wind waves Height (m) Direction Period (s) | S 9 | S 7 | S 8 | S 8 | ESE 6 | ESE 6 | — | — | S 10 | S 4 | — | — | — | — | — | — | — | NNW 3 | — | — | — |
| kJ | 1015 | 427 | 652 | 510 | 49 | 43 | — | — | 158 | 18 | — | — | — | — | — | — | — | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 2 | 158 | 93 | 6 | 1 | 1 | 1 | 6 | 84 | 1 | 11 | 11 | 0 | 0 | 11 | 0 | 0 | 11 | 0 | 0 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Long Reef Surf forecast
The above surf forecast table for Long Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Long Reef can be found by selecting the local surf guide option on the grey menu. Our Long Reef surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Long Reef) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Long Reef may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Long Reef is 2 km (1 miles) from Dee Why. If you plan a holiday in Sydney North Coast, look for hotels and other accommodation in Dee Why. Dee Why has rooms for a wide range of budgets as well as car hire and transport links.
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