Long Reef Surf Break

Lat Long: 33.74° S 151.32° E

Long Reef Surf Forecast and Surf Report

Issued: 3 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Long Reef sea temperature is
17.1°C
0.8° 

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 22 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 10AM (local time) - 5.5ft (1.7m), 9s period, S swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 10AM (local time) - 6ft (1.9m), 9s period, SSE swell with 612 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 10AM (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 Sunday (Aug 23) at 10AM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.6m and 6s is also forecast. 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 1.9m 9s and forecast to arrive on Saturday (Aug 29) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Aug 26) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 23rd Aug)4.5ft (1.4m) 9s
Best Surf10AM (Thu 27th Aug)5.5ft (1.7m) 9s
Most Powerful10AM (Sat 29th Aug)6ft (1.9m) 9s

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


The Lowdown

Alright folks, it’s Rusty here. Let's have a look at what's on the menu for the next couple of weeks. We’ve got a mixed bag of conditions coming up, so we need to pick our moments.

We start off with a bit of a slow start. The first real surfable session isn't until Sunday, the 23rd of August. It’s not a massive swell, but there’s some decent energy in the water. The best of the early action looks like it will be on Sunday morning. Long Reef will be the spot to paddle out at. The swell is coming in at 4.6ft from the south with a period of 9 seconds, and the wind is a perfect glassy 3 mph from the northeast. The water temp is sitting at 62.8°, which is about 1.4° cooler than usual for this time of year, so it’s not a major anomaly, just a bit of a chill. The combined energy is moderate (374). It’s going to be clean, glassy, and with that south swell wrapping in, it should be a fun morning.

Monday the 24th is a write-off with cross and cross-onshore winds, so we skip that. Tuesday the 25th morning has a bit of a bump, with 4.9ft swell from the northeast, but the period is a short 7 seconds. It’s a clean, cross-off wind, but that short period makes it a bit bouncy, so not a standout.

Now, Thursday the 27th morning is where things get interesting. We’ve got a solid 5.6ft swell from the south, 9-second period, and glassy conditions with a 3 mph wind from the SSE. The combined energy is strong (552). This is a very good session on offer. The water is still average for the time of year, but the quality of the waves will be the focus. This is a standout for sure.

Friday the 28th morning is also clean, with a 3.3ft south swell, a 12 mph offshore from the WSW, and a 9-second period. The energy is moderate (307). It’s a good, clean morning but not as punchy as Thursday.

The real gem of the whole forecast looks to be Saturday the 29th of August. The morning session has a 6.2ft swell from the SSE, 9-second period, with a light cross-off wind from the northwest at 6 mph. The combined energy is strong (655). This is the biggest, cleanest window of the period. The water is the same, but the waves are set to be excellent. This is the one to circle on the calendar.

The afternoon of the 29th remains good, with the swell dropping to 3.9ft and glassy conditions, but the morning is the clear winner.

The following week, from the 30th of August onwards, the quality drops off. We get some bigger swells, like 6.2ft on the 30th afternoon and 5.6ft on the 31st morning, but the winds turn cross or cross-onshore, making it messy. The energy on the 30th afternoon is very high (1313), but with poor wind direction, it’s not going to be clean. The 31st morning has a 5.6ft south swell with a long 12-second period, but the cross-shore wind spoils it. The energy is very strong (1002), but the texture won’t be there.

By the 1st of September, we get a clean afternoon with a 3.3ft south swell and a 12 mph offshore wind from the WNW. The period is long at 12 seconds, which is good for shape, but the size is small. The energy is moderate (324). It’s a salvageable session.

After that, from the 2nd of September onward, the swell drops right off, with most days seeing waves under 3.3ft and very low energy. The 2nd morning is glassy but tiny at 2.0ft, and the 7th of September afternoon has a 4.3ft wind swell from the NE with a terrible 5-second period, which is just wind chop. It’s a long, dry gap of poor surf from the 2nd all the way through the 7th.

So, the standout sessions are the morning of Thursday the 27th of August and the morning of Saturday the 29th of August. The 29th is the big one.

Short Range Forecast

Light rain (total 8mm), mostly falling on Tue afternoon. Warm (max 20°C on Tue morning, min 13°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Wed morning. Very mild (max 17°C on Wed morning, min 11°C on Thu night). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
1
0
0
1
2
0
1
0
0
1
3
0
2
2
0
1
3
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
S
9
0.8
S
13
1.1
S
10
0.8
S
10
0.7
S
10
1.4
NE
6
1.5
NE
7
1.2
ENE
7
1.1
NE
7
1.1
NE
8
0.9
ENE
8
1.7
S
8
1.7
S
9
1.4
S
9
1.3
S
10
1
S
9
1.2
SSE
11
1.1
SSE
10
1.9
SSE
9
1.2
S
8
1.1
S
9
Wave Graph
Metric surfscale
Energy kJ
320
222
247
123
96
143
195
146
122
136
103
393
492
299
345
148
343
227
612
191
198
Wind (km/h)
5
NE
15
NE
15
N
10
N
25
NE
10
N
15
NNW
15
N
15
NNW
25
SSW
20
SSE
15
SSE
5
SSE
15
E
5
W
20
WSW
20
SE
10
S
10
NW
5
E
20
WSW
Wind State
glassy
cross-on
cross
cross
cross-on
cross
cross-off
cross
cross-off
cross-off
cross
cross
glassy
on
off
off
cross-on
cross
cross-off
glassy
off
High Tide
4:57PM1.33m
5:48AM0.93m
5:45PM1.40m
6:30AM1.00m
6:27PM1.46m
7:07AM1.07m
7:04PM1.52m
7:42AM1.15m
7:40PM1.55m
8:16AM1.22m
8:16PM1.54m
8:50AM1.29m
8:51PM1.51m
Low Tide
10:09AM0.54m
11:58PM0.38m
11:07AM0.50m
00:37AM0.31m
11:55AM0.44m
1:12AM0.24m
12:38PM0.38m
1:44AM0.18m
1:19PM0.32m
2:14AM0.14m
1:59PM0.28m
2:44AM0.11m
2:39PM0.26m
3:15AM0.11m
part cloud
part cloud
clear
clear
clear
part cloud
cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:22
6:20
6:20
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:31
5:31
5:32
5:34
 mm
5
3
2
2
Temp °C
16
17
16
19
18
17
20
17
16
17
16
15
16
15
15
17
16
16
20
20
15
Feels °C
13
14
13
16
14
15
18
15
14
13
13
13
14
12
14
13
12
13
18
18
11
  • 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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