Long Reef Surf Break

Lat Long: 33.74° S 151.32° E

Long Reef Surf Forecast and Surf Report

Issued: 3 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Long Reef sea temperature is
17.6° C
0.4° 

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 17 Jul 2026:

  • Best quality surf: Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 10s period, ENE swell with glassy winds.
  • Most powerful swell: Sunday 19 Jul, 4AM (local time) - 7ft (2.2m), 12s period, ENE swell with 1,230 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 10s 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 10s 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 2.2m 12s and forecast to arrive on Sunday (Jul 19) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Thursday (Jul 23) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sun 19th Jul)6.5ft (2.0m) 10s
Best Surf10PM (Sun 19th Jul)6.5ft (2.0m) 10s
Most Powerful 4AM (Sun 19th Jul)7ft (2.2m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s coming down the pipe for Long Reef over the next couple of weeks.

Straight up, it’s a slow start and we’ve got a bit of a wait on our hands. The first few days are pretty grim with rain and onshore winds. It’s not until Monday, July 20th that we finally see a light at the end of the tunnel. The overall pattern is a gradual build to a solid pulse of groundswell, but the wind is going to be a major player in whether it’s actually any good.

The water temp is sitting at 64°, which is about 0.7° cooler than normal for this time of year, so nothing unusual, just standard winter chill.

Monday, July 20th morning is where it all clicks. The wind swings around to a light offshore from the West, and the swell is a solid 6 ft from the ENE at a decent 10-second period. The combined energy is moderate at (778) and the conditions are described as clean. This is a standout session. For a more advanced reef break like Long Reef, that 6 ft with offshore wind is going to be proper, well-shaped and holding up nicely. Just be aware, it’s a fairly consistent spot so you won’t be sitting around waiting forever, but the reports say crowds are sometimes possible, so be prepared to share it.

Tuesday, July 21st morning is another gem. The swell drops a touch to 5 ft, but the wind is glassy out of the Northwest. That’s going to give you silky smooth conditions. The energy is moderate (455) and the waves will be clean and fun. This is your second standout, a slightly smaller but equally clean option.

The rest of the first week and into the second week drops off significantly. From Wednesday the 22nd through to the end of July, the swell disappears. We’re looking at tiny waves, mostly under 3 ft, with a few days of clean conditions but nothing with any real push. The combined energy values drop into the double digits and low triple digits, signaling weak, marginal surf. There’s a big gap of small, ordinary surf here.

Then, right at the very end of the outlook, on Friday, July 31st, a new, punchy south swell shows up. We’re looking at 7 ft in the morning and 8 ft in the afternoon, but it’s a short-period wind swell (7-8 seconds) with a cross-shore wind. The energy is strong (441 to 660), but the short period makes it a bit lumpy and less refined. With that size, it’s going to be a handful and only for the experienced crew. The wind is cross-shore, so it won’t be pristine, but it’s got some grunt.

The best of the bunch: Monday July 20th morning, no question. That 6 ft ENE groundswell with a clean offshore wind is the pick of the whole outlook. Tuesday July 21st morning is a close second for the glassy conditions.

Keep it salty, and I’ll see you in the water.
Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri afternoon. Very mild (max 17°C on Sat morning, min 13°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Wed afternoon, min 10°C on Wed night). Wind will be generally light.

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
1
1
1
3
3
0
3
2
1
2
1
1
1
1
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)
0.7
E
6
0.7
S
10
1
E
6
1.1
E
7
1.7
E
9
2.2
ENE
11
2
ENE
10
1.9
ENE
10
1.7
ENE
10
1.6
ENE
10
1.5
ENE
10
1.4
ENE
10
1.4
ENE
10
1.2
ENE
10
1
ENE
9
0.9
ENE
9
0.8
ENE
9
0.8
ENE
9
0.8
ENE
9
1.1
S
7
Wave Graph
Metric surfscale
Energy kJ
35
106
83
121
425
1066
787
740
585
510
455
380
380
258
164
121
94
98
94
131
Wind (km/h)
5
SE
10
SSE
20
SSE
15
SE
15
SE
15
SE
10
SE
0
SE
5
W
15
NE
10
NW
5
NW
10
ENE
10
WNW
10
W
5
SSE
15
WSW
15
W
15
SSE
10
W
Wind State
glassy
cross
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
off
cross-on
cross-off
glassy
on
off
off
glassy
off
off
cross-on
off
High Tide
10:30PM1.64m
11:22AM1.24m
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
Low Tide
4:09PM0.28m
5:12AM0.05m
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
rain showers
clear
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:54
6:54
6:54
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:04
5:05
5:06
5:06
5:07
5:07
5:07
 mm
1
Temp °C
16
16
17
17
17
17
16
15
15
15
14
15
15
15
18
20
15
16
15
14
Feels °C
16
15
13
13
13
13
14
14
13
12
12
14
14
14
15
18
11
13
11
12
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  • 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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