Long Reef Surf Break

Lat Long: 33.74° S 151.32° E

Long Reef Surf Forecast and Surf Report

Issued: 9 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Long Reef sea temperature is
16.8° C
1.2° 

Long Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Long Reef surf forecast from 14 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 1AM (local time) - 4.5ft (1.3m), 7s period, S swell with cross-offshore winds.
  • Most powerful swell: Sunday 16 Aug, 10PM (local time) - 3.5ft (1.1m), 11s period, S swell with 282 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 1AM (local time) - 3.5ft (1.0m), 7s 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 Saturday (Aug 15) at 1AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.3m 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 1.1m 11s and forecast to arrive on Sunday (Aug 16) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Saturday (Aug 22) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sat 15th Aug)3.5ft (1.0m) 7s
Best Surf 1AM (Sun 16th Aug)4.5ft (1.3m) 7s
Most Powerful10PM (Sun 16th Aug)3.5ft (1.1m) 11s

Table - best surf conditions forecast for Long Reef over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s get into it.

The next couple of weeks are a real mixed bag. We’ve got a bit of a wait on our hands before anything gets truly worthwhile, with a lot of junky, onshore slop to sift through first. The water is a bit colder than usual for this time of year, at about 62.2°, so you’ll want the rubber on.

The first few days are a write-off. Friday afternoon has a weak, short-period 3.9ft south swell with a cross-offshore breeze, but it’s just not doing anything. The energy is weak (218), and it’s not going to be worth the paddle. Saturday morning brings a slightly better 4.9ft south swell with a cross-offshore breeze and a period of 9 seconds, and it does look clean. This is the first real chance to get wet, but it’s not a standout. The energy is moderate (656), but the wind is a bit tricky. By Saturday afternoon, the wind swings onshore and the whole thing falls apart into a cross-chop.

Sunday through to Thursday of the first week is pretty grim. We’ve got a lot of wind-affected, weak surf. The swell stays small, the period is short, and the winds are mostly cross or onshore. There’s a morning on Wednesday the 19th where it goes glassy with a small, short-period 3.3ft swell, but it’s just ordinary. The energy is weak (187). This is a ‘check the cam and maybe squeeze one in if you’re desperate’ kind of session, not something to plan around. The period is 7 seconds, so it’s going to be mushy and lacking any punch.

The weekend of the 16th-17th is a total bust. Nothing doing. Then things start to get a bit interesting as we head into the back half of the month. The period numbers start to climb, but the wind is still messing with us.

The real firecracker is the Tuesday the 25th, early in the morning. We’re looking at a proper groundswell, 11.5ft at 11 seconds from the south. The energy is huge (5029). It’s glassy with a slight air, and this is the big standout of the entire window. Long Reef is an exposed reef, so it can handle this kind of size, but this is only for experts. It’s way over the 8ft mark, so it’s strictly big-wave territory. The conditions look absolutely perfect for it early, but the wind will swing onshore later. This is the one to circle on the calendar. It’s a week and a half out, so it’s promising but not locked in.

Before that, the morning of Monday the 24th has a clean, glassy 4.6ft SSW swell with a good period of 8 seconds. The energy is moderate (463). It’s a decent, clean option, but it’s nothing compared to what’s coming the next day. That Tuesday morning is the one.

After the big day, the swell backs off but the quality stays okay for a bit. The morning of Wednesday the 26th sees a still-oversized 8.2ft south swell, but the wind goes cross, and it’s marginal. Not one for the average punter. By the morning of Friday the 28th, it’s dropped to a clean, glassy 5.2ft SE swell with a 10-second period. That looks like a much more manageable wave, with solid energy (462). A few days after the big one, this could be a classic example of the reef handling the leftover long-period energy well.

There’s a long stretch of mediocrity before and after that peak, but with a clean window on the 24th and the main event on the 25th, it’s worth the wait.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat night. Very mild (max 16°C on Fri night, min 12°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon night. Very mild (max 17°C on Thu morning, min 13°C on Tue night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
2
0
0
1
1
0
0
0
0
2
2
0
1
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
7
1.2
S
9
1.5
S
8
1.3
S
7
1.6
SE
6
1.1
SE
6
0.9
S
11
1.1
ESE
7
1.1
ESE
7
1.1
SE
7
0.6
S
11
1
ESE
6
0.6
ESE
12
1
ESE
7
1.1
ESE
6
1.2
ESE
7
0.9
ESE
7
0.8
ESE
7
1.2
ENE
6
Wave Graph
Metric surfscale
Energy kJ
103
230
273
152
207
88
182
113
110
100
88
80
111
91
96
132
79
58
113
Wind (km/h)
5
S
10
S
20
SSE
10
SSW
20
SE
20
SSE
10
ESE
10
SE
15
ESE
10
SE
10
SE
10
SE
0
NNW
0
SSW
10
ENE
5
NW
5
N
20
NE
10
NW
Wind State
glassy
cross
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
cross-on
cross-off
cross
cross-on
cross-off
High Tide
10:00AM1.34m
10:03PM1.52m
10:41AM1.35m
10:45PM1.37m
11:22AM1.35m
11:29PM1.21m
12:06PM1.33m
00:16AM1.06m
12:54PM1.30m
1:11AM0.94m
1:50PM1.27m
2:23AM0.87m
Low Tide
3:52AM0.03m
3:51PM0.23m
4:28AM0.11m
4:40PM0.29m
5:02AM0.20m
5:32PM0.36m
5:37AM0.30m
6:28PM0.43m
6:14AM0.39m
7:33PM0.49m
6:56AM0.47m
8:49PM0.51m
rain showers
rain showers
rain showers
rain showers
rain showers
cloud
part cloud
rain showers
rain showers
rain showers
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:31
6:31
6:30
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:24
5:25
5:25
5:27
5:28
 mm
1
2
1
3
1
2
4
1
1
Temp °C
16
15
16
15
15
15
16
15
15
16
16
15
15
16
16
16
17
17
17
Feels °C
15
13
12
12
11
11
13
12
12
13
13
13
14
14
14
15
14
14
14
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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