Surf Forecasts:
Long Reef surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 10AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with 643 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 10AM (local time) - 5.5ft (1.7m), 11s period with SSE 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 Friday (Aug 28) at 10AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.4m and 8s. 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 1.7m 11s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Thursday (Sep 03) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 28th Aug) | 5.5ft (1.7m) 11s |
| Best Surf | 10AM (Fri 28th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 10AM (Fri 28th Aug) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Long Reef over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at what’s coming up for Long Reef. This is a classic reef break that’s best for advanced surfers, and it’s fairly consistent. The water temp is sitting at 64°F, which is pretty much bang on average for this time of year.
The week kicks off Friday morning, August 28, with a solid 6 ft SSE swell, period at 11 seconds, and a light WNW cross-off breeze. The combined energy is moderate at 727, and conditions are clean. It’s a strong start but not the best we’ll see.
Saturday morning, August 29, sees a drop to 4 ft from the SSE, still clean with a light SW cross-off, but the energy is lower at 423. Sunday morning, August 30, is cleaner again with a 3 ft S swell, a light offshore W breeze, and a period of 9 seconds. Energy is 281. It’s good, but nothing to write home about.
Monday morning, August 31, is interesting. There’s only 2 ft of swell, but it’s a long-period S groundswell at 16 seconds, and the energy is still moderate at 445. With a light offshore W breeze, it’ll be clean, but that long period might make it break a bit straight at the reef. It’s a decent session for the patient surfer.
After that, the surf goes quiet for several days. From Tuesday, September 1, through to the end of the following week, we’re looking at small, weak swells and poor conditions. The energy drops right down into the double digits by Thursday, September 3, and there’s barely a ripple. This dry spell lasts until the morning of Saturday, September 5, when a 4 ft S swell kicks in with a period of 11 seconds and a light N cross-off. Energy is 391, and it’s clean. A nice little pulse, but short-lived as the afternoon goes cross-onshore.
Now, the real standout is further out. On Monday, September 7, the swell jumps up to 12 ft from the S, but it’s messy with cross-onshore winds. Not the day. The true gem is Tuesday morning, September 8. We’ve got an 8 ft S swell, period 12 seconds, and glassy conditions with a light NE breeze. The combined energy is a massive 2064, which is strong. This is powerful, clean groundswell – perfect for advanced surfers at Long Reef. The swell direction is straight from the SSE, which is the optimum for this spot. It’s going to be a ripper, but with size that big, it’s strictly for the experienced crew. Crowds are sometimes an issue here, so get in early.
The following days fade again, with a brief clean window on Wednesday morning, September 9, but it’s only 4 ft and cross-off, nothing special. Then on Saturday, September 12, there’s a clean 3 ft S swell with a gentle offshore W wind, but energy is only 280. It’s a fun little end to the outlook.
So, the standout is clear: Tuesday, September 8, morning session at Long Reef – that’s the one to circle on the calendar. Everything else is small or blown out.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Fri morning, min 12°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
AM | 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) | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | SSE 10 | S 9 | S 9 | S 9 | S 16 | S 11 | S 9 | S 11 | S 11 | S 11 | S 10 | S 10 | ENE 10 | SSE 13 | ENE 10 | S 11 |
Wave Graph | |||||||||||||||||||||
643 | 433 | 287 | 318 | 275 | 161 | 157 | 215 | 392 | 246 | 279 | 136 | 246 | 192 | 144 | 98 | 69 | 31 | 55 | 31 | 37 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross-off | cross-on | glassy | off | cross-on | cross-off | off | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 8:16PM1.54m | 8:50AM1.29m | 8:51PM1.51m | 9:25AM1.35m | 9:29PM1.45m | 10:02AM1.40m | 10:09PM1.35m | 10:42AM1.42m | 10:55PM1.24m | 11:27AM1.43m | 11:48PM1.13m | 12:21PM1.42m | 00:54AM1.02m | ||||||||
Low Tide | 1:59PM0.28m | 2:44AM0.11m | 2:39PM0.26m | 3:15AM0.11m | 3:22PM0.25m | 3:47AM0.14m | 4:07PM0.26m | 4:21AM0.18m | 4:57PM0.29m | 4:59AM0.25m | 5:54PM0.32m | 5:44AM0.33m | 7:03PM0.35m | ||||||||
6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 15 | 16 | 15 | 14 | 17 | 15 | 15 | 18 | 16 | 15 | 21 | 22 | 20 | 25 | 26 | 22 | 28 | 26 | 23 |
Feels °C | 15 | 11 | 13 | 14 | 13 | 14 | 15 | 12 | 14 | 16 | 14 | 13 | 17 | 19 | 17 | 22 | 24 | 19 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | S 11 | S 9 | S 11 | S 11 | S 11 | S 10 | S 10 | ENE 10 | NNE 5 | ENE 10 | S 11 |
643 | 433 | 287 | 318 | 275 | 161 | 157 | 215 | 392 | 182 | 279 | 136 | 246 | 192 | 144 | 98 | 69 | 31 | 17 | 31 | 37 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | S 9 | S 9 | S 8 | SE 10 | ENE 9 | S 17 | S 16 | S 16 | S 16 | ENE 11 | ENE 11 | NE 6 | ENE 10 | ENE 10 | S 10 | ENE 10 | NE 5 | ENE 10 |
26 | 26 | 25 | 76 | 209 | 108 | 94 | 25 | 93 | 246 | 174 | 76 | 23 | 37 | 25 | 34 | 33 | 30 | 31 | 7 | 32 | |
Swell 3 Height (m) Direction Period (s) | S 14 | S 13 | S 11 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | SE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | N 12 | ENE 10 | NE 5 | SSE 13 | NE 5 | SSE 13 | S 10 | NE 6 |
58 | 30 | 37 | 29 | 28 | 32 | 30 | 21 | 24 | 17 | 16 | 15 | 7 | 3 | 34 | 10 | 17 | 6 | 55 | 16 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | NNE 4 | NE 4 | NW 3 | NW 3 | NE 5 | NW 3 | WNW 3 | W 4 | NNW 2 |
— | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 26 | 2 | 3 | 6 | 2 | 1 | 10 | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 93 | 1 | 0 | 6 | 0 | 0 | 57 | 0 | 0 | 22 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 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.











