Surf Forecasts:
Long Reef surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with 791 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 10PM (local time) - 4.5ft (1.4m), 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 Thursday (Aug 27) at 10PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.6m and 9s. 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 1.7m 12s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Wednesday (Sep 02) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 27th Aug) | 4.5ft (1.4m) 9s |
| Best Surf | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
| Most Powerful | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Long Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s rolling in over the next couple of weeks.
Alright, the first bit of the window is a bit of a mixed bag, but we’ve got a solid run of clean mornings at Long Reef. The standout is definitely the start of the second week, with a big pulse of southern groundswell.
For Thursday the 27th, it’s a bit of a write-off. The morning has a 7 ft S swell but with a cross wind and a combined energy of 778, it’s just messy. The afternoon gets a little better in size at 6 ft, but it’s cross-on, so no good.
Friday the 28th morning is where it starts to get interesting. We’ve got a 6 ft SSE swell, with a period of 11 seconds, and clean offshore wind from the WSW. The water temp is about 64°, which is pretty normal for this time of year. The combined energy is 724, so it’s got some push. This is a solid option for the advanced crew.
Saturday the 29th morning is another clean one, with a 4 ft SSE swell and light offshore wind. The combined energy is 514, and it’ll be fun on the sets.
Sunday the 30th morning, the swell drops to 3 ft from the S with a 9-second period, but the wind is light offshore. The energy is 281, so it’s a bit weaker, but it’ll be clean.
Monday the 31st morning, we’ve got glassy conditions with a 4 ft S swell. The period is only 8 seconds, so it’s a bit short, but with the glassy surface, it’ll be worth a look.
The first week of September is small. Tuesday the 1st morning has a 3 ft S swell at 12 seconds, but it’s small. The energy is 265, and it’s clean. The rest of the first week is mostly too small to bother with, under 3 ft.
Now, the real standout is Thursday the 10th of September morning. We’ve got a massive 13 ft S swell, with a long period of 14 seconds. The combined energy is a whopping 5796, so this is a strong, powerful groundswell. The wind is light and cross-off, so it’ll be clean. This is a big one, only for experts. The setup is a reef, so it’ll handle that long period energy well, but it’s going to be boiling.
Friday the 11th of September morning is still pumping, with a 10 ft S swell at 12 seconds. The energy is 2831, and it’s clean with a light cross-off wind. This is excellent for experienced surfers, but again, it’s big.
The second half of the second week drops off fast, with the swell fading and the winds picking up. Wednesday the 9th afternoon has a 10 ft S swell, but the wind is a fresh cross-shore, making it lumpy. It’s not the best.
Overall, the best bets are the clean mornings of Friday the 28th of August and Saturday the 29th of August, and the big, clean, expert-only swell on Thursday the 10th of September and Friday the 11th of September.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Fri morning, min 11°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | S 9 | S 9 | S 9 | S 9 | S 17 | S 16 | S 10 | S 12 | S 11 | S 11 | S 10 | E 10 | ENE 10 |
Wave Graph | |||||||||||||||||||||
707 | 421 | 299 | 643 | 433 | 287 | 261 | 229 | 164 | 157 | 225 | 288 | 195 | 249 | 153 | 221 | 157 | 110 | 50 | 49 | 33 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | off | cross | cross | cross-off | on | cross-off | off | cross-on | cross-off | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:40PM1.55m | 8:16AM1.22m | 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 | ||||||||
Low Tide | 1:19PM0.32m | 2:14AM0.14m | 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 | ||||||||
6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | |
— | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 16 | 15 | 15 | 16 | 15 | 14 | 17 | 15 | 15 | 17 | 16 | 15 | 25 | 26 | 20 | 27 | 27 | 21 |
Feels °C | 12 | 13 | 13 | 12 | 11 | 13 | 14 | 13 | 14 | 15 | 12 | 15 | 14 | 13 | 13 | 20 | 21 | 17 | 22 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 10 | S 12 | S 11 | NE 6 | S 10 | NNE 5 | ENE 10 |
707 | 421 | 299 | 643 | 433 | 287 | 224 | 229 | 153 | 157 | 225 | 288 | 195 | 175 | 153 | 221 | 157 | 39 | 48 | 11 | 33 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | SSE 13 | ENE 8 | ENE 8 | ENE 8 | SSE 10 | SE 10 | SSE 10 | SE 10 | ENE 9 | ENE 10 | S 17 | S 16 | S 16 | ENE 11 | ENE 11 | S 11 | NE 5 | E 10 | NE 6 |
54 | 40 | 147 | 26 | 26 | 25 | 261 | 220 | 164 | 94 | 25 | 31 | 195 | 249 | 121 | 38 | 38 | 110 | 18 | 49 | 11 | |
Swell 3 Height (m) Direction Period (s) | S 15 | S 14 | ENE 9 | S 13 | S 13 | S 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SE 9 | S 16 | ENE 9 | ENE 9 | ENE 9 | N 12 | N 12 | ENE 10 | E 10 | S 10 | S 9 |
17 | 36 | 50 | 55 | 54 | 37 | 29 | 29 | 32 | 30 | 22 | 46 | 17 | 16 | 26 | 3 | 3 | 34 | 50 | 29 | 14 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | NNE 4 | NE 5 | NW 3 | NW 3 | NW 3 | NW 3 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 6 | 41 | 2 | 5 | 2 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 6 | 0 | 0 | 120 | 1 | 0 | 22 | 0 | 0 | 6 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 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.











