Surf Forecasts:
Long Reef surf forecast from 4 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 1AM (local time) - 4.5ft (1.3m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 9 Aug, 10PM (local time) - 4.5ft (1.3m), 10s period, ENE swell with 284 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 10AM (local time) - 2.5ft (0.7m), 8s 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 Thursday (Aug 06) at 10AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Long Reef in the next 16 days are 1.3m 10s and forecast to arrive on Sunday (Aug 09) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Aug 10) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 6th Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 1AM (Tue 11th Aug) | 4.5ft (1.3m) 8s |
| Most Powerful | 10PM (Sun 9th Aug) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Long Reef over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – the next week and a half is a bit of a slow burn for Long Reef, but there’s a pulse of proper size later on that’s worth keeping an eye on.
Right now, we’re in a flat spell. From Tuesday through to the end of next week, the swell is tiny – mostly under 3ft – and the energy is weak, with the combined energy sitting around 50 to 180 (weak to moderate). The water temp is 64°, which is about average for this time of year, nothing wild. The wind is offshore or glassy a lot of the mornings, especially Tuesday afternoon with the glass-off, but with almost no waves, it’s a paddle and a tan, not a surf.
The first real sign of life shows up on Thursday, August 13th. That’s when a solid 13ft S swell rolls in, with combined energy readings of 3481 (strong to very strong). That’s a big jump. The period is 10 seconds, so it’s a solid groundswell with some punch. It’s too big for beginners, and even for most intermediates – this is expert territory. The wind is cross-offshore from the SW early, keeping things reasonably clean, but it goes cross-shore in the arvo, so the morning is your window. This is the standout of the whole forecast. Long Reef is a reef break, so a long-period S swell like this will line up nicely, but it’s going to be powerful and heavy.
Friday, August 14th, still has a chunky 10ft swell from the SSE, energy at 1318 (strong), but it’s dropping. The wind is cross-offshore again, so it’ll still be clean, but the size is backing off. By Saturday, August 15th, we’re down to 6ft, and the wind starts to get a bit messy cross-shore, so it’s less of a highlight.
The final week from August 18th onward sees the swell settle into the 4ft to 5ft range, with periods around 10 to 12 seconds. The energy is moderate (around 295 to 515). The morning of Wednesday, August 19th, looks the best of that late period with clean offshore wind and a 4ft ESE swell giving decent shape. It’s not a standout, but it’s a nice, manageable size for a session.
So, to sum it up: the first week is a dud. The real action is Thursday, August 13th, with that big 13ft S swell – that’s your best chance for a proper wave, but it’s for the experienced crew only. The following Friday and Saturday offer cleaner, smaller waves for those who aren’t after the big stuff.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Tue afternoon, min 9°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sun morning, min 10°C on Fri night). Winds increasing (light winds from the SW on Fri night, fresh winds from the NNW by Sun afternoon). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | SE 10 | SSW 5 | E 11 | E 10 | E 9 | S 12 | S 8 | S 8 | S 7 | S 9 | SSE 10 | S 8 | S 8 | S 7 | SSE 8 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | SSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 25 | 9 | 10 | 18 | 15 | 24 | 68 | 94 | 37 | 56 | 54 | 50 | 58 | 39 | 24 | 79 | 146 | 275 | 179 | 139 | 246 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | off | off | cross-off | off | off | cross-on | off | off | cross-on | off | cross-off | on | cross-off | cross | cross-off | cross-off | off | cross-off | off |
High Tide | 12:02PM1.30m | 00:00AM1.21m | 12:53PM1.34m | 00:59AM1.10m | 1:52PM1.38m | 2:13AM1.01m | 2:58PM1.43m | 3:38AM0.97m | 4:06PM1.50m | 4:58AM0.99m | 5:10PM1.59m | 6:04AM1.04m | 6:08PM1.68m | ||||||||
Low Tide | 6:06PM0.42m | 6:18AM0.26m | 7:12PM0.44m | 7:07AM0.32m | 8:30PM0.42m | 8:06AM0.37m | 9:51PM0.36m | 9:15AM0.39m | 11:05PM0.26m | 10:25AM0.38m | 00:08AM0.15m | 11:30AM0.34m | 1:02AM0.06m | ||||||||
 | |  | | | |  |  | | | | | | |  | | | | | | | |
 | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 18 | 13 | 16 | 18 | 13 | 15 | 15 | 13 | 16 | 15 | 14 | 15 | 15 | 14 | 19 | 19 | 16 | 16 | 16 | 13 |
Feels °C | 12 | 16 | 9 | 12 | 14 | 8 | 12 | 11 | 11 | 11 | 11 | 11 | 13 | 13 | 11 | 14 | 13 | 10 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SSW 5 | SSW 5 | E 6 | E 10 | SSW 4 | S 12 | S 8 | S 8 | S 7 | S 9 | SSE 10 | S 8 | S 8 | S 7 | SSE 8 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 9 |
| kJ | 16 | 9 | 3 | 18 | 4 | 24 | 68 | 94 | 37 | 56 | 54 | 49 | 58 | 39 | 24 | 79 | 146 | 275 | 179 | 139 | 146 |
Swell 2 Height (m) Direction Period (s) | SE 10 | ESE 7 | E 11 | E 13 | E 9 | E 10 | E 10 | E 12 | S 9 | SSE 10 | S 9 | SSE 9 | SSE 9 | SSE 9 | S 7 | SSE 8 | NE 5 | S 7 | S 13 | SSW 7 | ENE 9 |
| kJ | 25 | 5 | 10 | 13 | 15 | 8 | 16 | 25 | 26 | 37 | 38 | 50 | 45 | 30 | 15 | 19 | 17 | 4 | 3 | 26 | 106 |
Swell 3 Height (m) Direction Period (s) | ESE 7 | SSE 10 | ESE 8 | S 10 | S 11 | E 8 | SSE 13 | SSE 12 | NNE 3 | NE 6 | NE 6 | ENE 6 | ENE 7 | ENE 7 | NE 7 | E 14 | SSE 7 | NE 10 | — | S 13 | E 13 |
| kJ | 10 | 9 | 7 | 8 | 10 | 5 | 16 | 15 | 4 | 10 | 6 | 14 | 20 | 18 | 11 | 4 | 10 | 4 | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | SW 5 | SW 4 | W 3 | SW 4 | — | — | N 4 | — | — | — | — | — | NE 4 | NE 5 | NW 4 | W 4 | SW 6 | — | SSW 8 |
| kJ | — | — | 25 | 16 | 1 | 16 | — | — | 9 | — | — | — | — | — | 14 | 14 | 6 | 26 | 60 | — | 246 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 582 | 139 | 17 | 99 | 17 | 0 | 17 | 0 | 0 | 120 | 0 | 0 | 35 | 0 | 1 | 11 | 0 | 37 | 10 | 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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