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Long Reef Surf Forecast
/ NSW – Sydney North Coast (39 breaks) / New South Wales (297 breaks) /
Surf Forecasts:
Long Reef surfForecast / NSW – Sydney North Coast / Australia
12 Day Weather and Surf, issued 9 am Wednesday 17 Sep 2025 AEST
Best Forecast Surf Conditions for Long Reef this week:
The surf forecast for Long Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 7AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.9m and 6s. Another secondary swell of 1.2m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Long Reef in the next 12 days are 3.0m 10s and forecast to arrive on Wednesday (Sep 24) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Tuesday (Sep 23) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 18th Sep) | 3ft (0.9m) 11s |
| Best Surf | 7PM (Tue 23rd Sep) | 8ft (2.5m) 9s |
| Most Powerful | 1PM (Wed 24th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Long Reef over the next 12 days.
Short Range Forecast Light rain (total 3mm), mostly falling on Fri night. Warm (max 23°C on Wed morning, min 13°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Mon morning, min 9°C on Sat night). Winds decreasing (fresh winds from the SW on Sat afternoon, calm by Sun afternoon). | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 7 | 11 | 8 | 6 | 10 | 6 | 6 | 6 | 10 | 6 | 9 | 15 | 11 | 10 | 10 | 9 | 8 | 9 | 9 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 96 | 84 | 44 | 223 | 195 | 101 | 89 | 56 | 103 | 59 | 30 | 97 | 251 | 210 | 231 | 125 | 125 | 57 | 1193 | 1397 | 770 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- on | cross- off | cross- off | cross- on | cross- off | cross | glass | cross | off | cross- off | off | off | glass | off | off | off | cross- off | cross- off | cross- off | off |
High Tide / height (m) | 4:54PM 1.46 | 5:53AM 1.07 | 5:48PM 1.49 | 6:36AM 1.16 | 6:34PM 1.50 | 7:12AM 1.24 | 7:14PM 1.49 | 7:46AM 1.31 | 7:51PM 1.45 | 8:17AM 1.37 | 8:27PM 1.39 | 8:48AM 1.41 | 9:02PM 1.31 | ||||||||
Low Tide / height (m) | 10:22AM 0.48 | 11:48PM 0.21 | 11:24AM 0.42 | 12:31AM 0.18 | 12:15PM 0.35 | 1:07AM 0.15 | 1:00PM 0.30 | 1:39AM 0.15 | 1:41PM 0.26 | 2:08AM 0.17 | 2:20PM 0.24 | 2:36AM 0.20 | 2:59PM 0.23 | 3:04AM 0.24 | |||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
| Sunrise | 5:52 | - | - | 5:50 | - | - | 5:48 | - | - | 5:48 | - | - | 5:47 | - | - | 5:45 | - | - | 5:43 | - | - |
| Sunset | - | 5:46 | - | - | 5:46 | - | - | 5:47 | - | - | 5:49 | - | - | 5:49 | - | - | 5:50 | - | - | 5:51 | - |
 |  |  | | | | |  |  | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 3 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 16 | 17 | 17 | 16 | 20 | 19 | 17 | 20 | 17 | 12 | 18 | 19 | 15 | 21 | 21 | 14 | 14 | 14 | 11 |
| Feels °C (?) | 21 | 20 | 11 | 15 | 15 | 14 | 17 | 19 | 13 | 14 | 9 | 7 | 14 | 17 | 11 | 17 | 15 | 9 | 7 | 8 | 6 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for NSW - Sydney North Coast
Continuing clean conditions at Long Reef (calm at Cromer wx 5 km from Long Reef). 0.9m 8s swell from the NE with a 0.7m 4s local chop from the SW and a 0.3m 5s windswell from the SSW. 3 swells combining to make bigger set waves.
1 h 16 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Long Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 12 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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