Surf Forecasts:
Long Reef surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 11s period, ENE swell with glassy winds.
- Most powerful swell: Friday 24 Jul, 7AM (local time) - 10ft (3.0m), 11s period, S swell with 1,985 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 11s 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 Sunday (Jul 19) at 10PM. The primary swell is predicted to be 2.0m and 11s 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 3.0m 11s and forecast to arrive on Friday (Jul 24) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Jul 23) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 19th Jul) | 6.5ft (2.0m) 11s |
| Best Surf | 10PM (Sun 19th Jul) | 6.5ft (2.0m) 11s |
| Most Powerful | 7AM (Fri 24th Jul) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Long Reef over the next 16 days.
The Lowdown
Gather ’round, crew. Rusty here, and I’ve been staring at the charts for our local slab, Long Reef. It’s a reef setup that needs a specific SE window to really fire, and we’ve got a bit of a mixed bag coming our way over the next couple of weeks.
Right now, it’s pretty flat and ugly. We’re starting with a gap of poor conditions through the rest of this week. Don’t even bother paddling out until we get a shift. The real story starts to build with a proper groundswell moving in early next week.
Monday morning, July 20, is the first standout. We’ve got a clean 6ft swell rolling in from the ENE with a solid 11-second period. The wind is light offshore from the west, so the face should be clean and lined up. The combined wave energy is pushing moderate levels (976). This is the pick of the forecast for an advanced crew – that reef won’t give you any breaks. The water temp is sitting at 64°, which is pretty much normal for this time of year.
After that, the surf settles a bit, but Thursday morning, July 24, brings another proper session. A fresh 7ft S swell with a 10-second period, and a solid offshore wind from the WSW is grooming it beautifully (946 energy). This is a powerful, clean option. By the afternoon, the wind goes glassy, with a 6ft S swell still showing good shape. Crowds are sometimes an issue at this spot, so get out early.
Later in the week, we see a few smaller windows of clean surf, but the real magic fades. There’s a late-season long-period S swell that arrives around Thursday, July 30, with a very long 18-second period (181 energy), but the onshore and cross-chop winds shred any quality. By the time we hit August, it’s a write-off with rain and lumpy wind. This is a short-run burst for the experienced surfer – keep an eye on that Monday and Thursday window.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Very mild (max 19°C on Wed afternoon, min 9°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | E 7 | E 8 | ENE 11 | ENE 10 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | S 6 | S 9 | S 8 | S 10 | S 11 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 117 | 271 | 1086 | 803 | 867 | 783 | 705 | 510 | 425 | 307 | 394 | 207 | 158 | 116 | 144 | 1178 | 442 | 932 | 813 | 392 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | glassy | off | cross-on | cross-off | cross | cross-on | cross-off | off | cross-on | off | cross-off | cross | cross-off | off | glassy | off |
High Tide | 11:17PM1.49m | 12:10PM1.25m | 00:04AM1.32m | 1:00PM1.27m | 00:55AM1.15m | 1:52PM1.28m | 1:52AM1.02m | 2:46PM1.29m | 2:58AM0.92m | 3:41PM1.31m | 4:10AM0.88m | 4:35PM1.34m | ||||||||
Low Tide | 5:03PM0.34m | 5:53AM0.13m | 6:01PM0.41m | 6:32AM0.23m | 7:04PM0.47m | 7:12AM0.32m | 8:14PM0.51m | 7:55AM0.40m | 9:28PM0.51m | 8:44AM0.46m | 10:38PM0.48m | 9:38AM0.49m | 11:37PM0.43m | |||||||
 |  |  | | | | |  | | | | | | | | |  | | | | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 5:05 | — | — | 5:06 | — | — | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 17 | 17 | 17 | 15 | 15 | 15 | 14 | 14 | 16 | 16 | 15 | 18 | 19 | 16 | 16 | 14 | 12 | 13 | 13 | 12 |
Feels °C | 13 | 13 | 14 | 13 | 15 | 14 | 12 | 12 | 13 | 13 | 13 | 15 | 15 | 13 | 10 | 8 | 7 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 8 | ENE 11 | ENE 10 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 9 | ENE 9 | S 10 | S 11 | S 9 |
| kJ | 117 | 271 | 1086 | 803 | 867 | 783 | 705 | 510 | 425 | 307 | 394 | 207 | 158 | 116 | 88 | 1000 | 29 | 932 | 813 | 392 |
Swell 2 Height (m) Direction Period (s) | S 10 | ENE 11 | S 17 | S 16 | S 13 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | ENE 9 | S 14 | ENE 8 | ENE 9 | ENE 9 |
| kJ | 45 | 109 | 211 | 176 | 160 | 184 | 134 | 84 | 56 | 32 | 17 | 17 | 20 | 8 | 2 | 58 | 60 | 14 | 15 | 15 |
Swell 3 Height (m) Direction Period (s) | S 20 | S 9 | SE 17 | SE 17 | SE 16 | SE 15 | SE 15 | SE 14 | S 16 | S 15 | S 14 | S 12 | — | — | — | E 9 | E 8 | — | S 17 | SSW 16 |
| kJ | 31 | 24 | 12 | 11 | 10 | 9 | 9 | 8 | 19 | 17 | 4 | 11 | — | — | — | 1 | 1 | — | 6 | 48 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNE 3 | — | NE 4 | N 5 | — | — | WSW 4 | S 6 | S 9 | S 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | — | 13 | 34 | — | — | 11 | 144 | 1178 | 442 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 111 | 6 | 6 | 6 | 0 | 0 | 11 | 0 | 0 | 71 | 0 | 0 | 0 | 0 | 1 | 158 | 1 | 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.
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