
Surf Forecasts:
Long Reef surf forecast from 6 Sep 2026:
- Best quality surf: Friday 11 Sep, 1AM (local time) - 10ft (3.0m), 11s period, S swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 11ft (3.5m), 10s period, S swell with 2,590 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 1AM (local time) - 7ft (2.1m), 9s period with S 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 (Sep 07) at 1AM. The primary swell is predicted to be 2.1m and 9s period with a secondary swell of 0.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Long Reef in the next 16 days are 3.5m 10s and forecast to arrive on Thursday (Sep 10) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Sep 09) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 7th Sep) | 7ft (2.1m) 9s |
| Best Surf | 1AM (Fri 11th Sep) | 10ft (3.0m) 11s |
| Most Powerful | 1AM (Thu 10th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Long Reef over the next 16 days.
The Lowdown
Alright, Rusty here, let's talk about what's coming up for our little slice of the coast.
We've got a real mixed bag on the horizon. The next week or so is going to take some patience, with a lot of wind and messy conditions to wade through. But don't you worry, there are a couple of windows that look truly special if you time it right.
Things kick off on Sunday the 6th, but honestly, it's a write-off. We've got a 1.3m southerly swell with a short, weak 8-second period and a stiff cross-breeze from the SSE at 25 km/h. The combined energy is only moderate at 206, and it's just not worth paddling out for.
Monday the 7th morning, however, is a nice little surprise. The wind goes glassy out of the north at just 5 km/h, and the swell holds at 1.4m from the south. It's still a short period, but that glassy surface will make it look a hundred times better. It's a solid 2 out of 10 on my scale, which is actually a winner right now.
Tuesday the 8th morning sees the swell jump up to 2.5m from the SSE, but the period is still short and the wind is a cross-shore mess at 20 km/h. The energy is up to a moderate 900, but it's a messy, choppy beast. That afternoon drops to 1.9m but the wind swings onshore, so it's a no-go.
Wednesday the 9th is a stormy mess with 40 km/h southerly winds and a 2.5m swell. Leave the board at home.
Thursday the 10th morning has potential, but it's for the brave. We're looking at a solid 3.0m southerly swell with a 10-second period. The energy is strong at 1609, and the wind is a cross-offshore from the SSW at 25 km/h, which should keep things reasonably clean. This is borderline expert territory at that size.
Now, here's the standout. Friday the 11th morning is the one to circle on your calendar. The swell drops a touch to a still-chunky 2.5m from the south, but the period is a decent 10 seconds and, more importantly, the wind goes offshore from the WSW at a light 10 km/h. The combined energy is a massive 2355, signalling very strong wave energy. This is a 4 out of 10 forecast for experienced surfers, and for a reef break like Long Reef, that offshore wind and solid energy is going to produce some absolutely firing, clean barrels. Crowds are possible here, so get there early. It's a serious wave, though—well over 2.5m, so only for the experts.
Saturday the 12th morning is still decent, with a 1.7m south swell, 11-second period, and a light cross-offshore breeze. It's cleaner but smaller.
Things go quiet again after that. The middle of the following week sees a bump in swell on Tuesday the 15th and Wednesday the 16th, but the wind is onshore or cross-onshore, making for poor quality surf.
Then, look here—we have another real gem on the horizon. Thursday the 17th morning is glassy again with an easterly breeze at 5 km/h, and we've got a tiny but incredibly long-period 0.8m south swell at 17 seconds. That's a very long-period groundswell, and on a reef break, that could produce some incredibly clean, lined-up waves, even if they're small. The energy is surprisingly strong for the size at 691. It's a 3 out of 10 for very good surf conditions, but you'll need a bigger board.
Finally, Friday the 18th afternoon is another big one for the experienced crew. The wind goes offshore from the WNW at a moderate 20 km/h, and we've got a 1.0m south swell with a massive 19-second period. The energy is very strong at 1251. This is another 4 out of 10 for experienced surfers. The combination of a very long period groundswell and offshore wind on a reef is pure magic, but the swell direction (south) might not be hitting Long Reef perfectly. Still, if it lines up, it'll be a session to remember.
So, to sum it up: Friday the 11th morning is your best bet for solid, powerful, expert-level surf with offshore winds. Friday the 18th afternoon is a promising long-range call for the same kind of quality, but less certain this far out. For the rest of us, the glassy morning on Monday the 7th is the best small-wave window, and the glassy morning on Thursday the 17th could be a super clean, long-period surprise.
Stay stoked, and see you out there.
Rusty
Short Range ForecastSome drizzle, heaviest during Mon night. Very mild (max 18°C on Mon morning, min 11°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the S by Wed morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Wed afternoon. Very mild (max 17°C on Fri morning, min 10°C on Wed night). Winds decreasing (strong winds from the S on Wed afternoon, light winds from the SW by Sat morning). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 8 | S 9 | S 8 | SSE 9 | S 8 | SSE 9 | SSE 8 | S 9 | S 8 | S 8 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | SSE 9 |
Wave Graph | ||||||||||||||||||||
187 | 748 | 245 | 380 | 765 | 892 | 460 | 306 | 169 | 822 | 2590 | 1509 | 1591 | 1995 | 1325 | 830 | 730 | 708 | 486 | 308 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | on | cross | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | off | off | cross-on | cross-off | cross-off | on | cross-off |
High Tide | 4:59AM1.01m | 5:00PM1.55m | 5:57AM1.10m | 5:56PM1.61m | 6:45AM1.20m | 6:46PM1.64m | 7:28AM1.29m | 7:32PM1.63m | 8:07AM1.37m | 8:15PM1.57m | 8:45AM1.43m | 8:56PM1.48m | ||||||||
Low Tide | 10:57PM0.23m | 10:24AM0.42m | 11:54PM0.15m | 11:28AM0.35m | 00:41AM0.08m | 12:24PM0.28m | 1:23AM0.04m | 1:14PM0.21m | 2:01AM0.04m | 2:02PM0.18m | 2:36AM0.07m | 2:47PM0.17m | 3:09AM0.12m | |||||||
— | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | |
5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | |
mm | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 18 | 17 | 16 | 16 | 16 | 14 | 16 | 14 | 14 | 14 | 14 | 14 | 17 | 16 | 15 | 15 | 15 | 14 |
Feels °C | 12 | 14 | 15 | 14 | 10 | 11 | 13 | 12 | 10 | 5 | 5 | 8 | 9 | 11 | 13 | 12 | 12 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | NE 6 | S 9 | S 8 | SSE 9 | E 10 | E 10 | SSE 8 | S 9 | S 8 | ESE 13 | ESE 11 | ESE 10 | ESE 10 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | SSE 9 |
6 | 748 | 245 | 380 | 9 | 8 | 460 | 306 | 169 | 35 | 71 | 39 | 18 | 1527 | 1024 | 830 | 730 | 708 | 486 | 308 | |
Swell 2 Height (m) Direction Period (s) | E 10 | NE 7 | SSE 10 | E 10 | NE 7 | — | E 10 | SE 6 | SE 7 | ENE 9 | SSW 16 | S 18 | E 15 | ESE 9 | E 15 | ENE 14 | ENE 13 | S 19 | S 17 | ENE 13 |
9 | 2 | 63 | 8 | 2 | — | 8 | 59 | 39 | 8 | 53 | 56 | 4 | 8 | 4 | 18 | 18 | 27 | 94 | 17 | |
Swell 3 Height (m) Direction Period (s) | S 14 | E 10 | NNE 8 | NE 8 | — | — | NE 9 | E 10 | ENE 9 | E 17 | NE 16 | E 16 | NE 15 | E 15 | E 10 | E 10 | E 9 | ENE 14 | ENE 14 | E 9 |
4 | 8 | 6 | 3 | — | — | 3 | 7 | 8 | 6 | 10 | 5 | 9 | 4 | 2 | 2 | 2 | 19 | 19 | 2 | |
Wind waves Height (m) Direction Period (s) | S 8 | — | — | — | S 8 | SSE 9 | — | — | — | S 8 | S 10 | S 10 | S 10 | S 11 | S 10 | — | — | — | — | NNE 3 |
187 | — | — | — | 765 | 892 | — | — | — | 822 | 2590 | 1509 | 1591 | 1995 | 1325 | — | — | — | — | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 57 | 0 | 0 | 248 | 158 | 87 | 57 | 0 | 6 | 395 | 78 | 6 | 58 | 0 | 0 | 191 | 0 | 0 | 22 | 0 |
Best forecast wave conditions in Sydney North Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










