Long Reef Surf Break

Lat Long: 33.74° S 151.32° E

Long Reef Surf Forecast and Surf Report

Issued: 3 am 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 16 Jul 2026:

  • Best quality surf: Friday 24 Jul, 1AM (local time) - 10ft (3.0m), 9s period, S swell with offshore winds.
  • Most powerful swell: Friday 24 Jul, 1AM (local time) - 10ft (3.0m), 9s period, S swell with 1,455 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 10AM (local time) - 3ft (0.9m), 6s 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 Friday (Jul 17) at 10AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.7m and 6s. 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 9s and forecast to arrive on Friday (Jul 24) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 23) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Fri 17th Jul)3ft (0.9m) 6s
Best Surf 1AM (Fri 24th Jul)10ft (3.0m) 9s
Most Powerful 1AM (Fri 24th Jul)10ft (3.0m) 9s

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


The Lowdown

G'day, Rusty here. Let's have a look at what's comin' our way.

Alright, lookin' at the 16-day window, it's a bit of a slow starter for Long Reef. We've got a few days of pretty ordinary stuff before we see anything worth paddlin' out for. The real standout is gonna be a solid pulse of easterly swell that shows up on the Monday, with a bit of a follow-up later in the run.

Friday the 17th kicks off with a tiny bit of swell, but it's nothin' to get excited about. The morning sees a 3ft southerly swell with a short 6-second period (weak energy at 113), and while the wind is glassy, the rain showers are gonna put a damper on things. The afternoon turns to a cross-on breeze, and the swell drops off. Saturday the 18th is a write-off with a strong cross-on breeze and a choppy mess. Sunday the 19th is a bit of a tease. The swell builds to 8ft from the east-northeast with a decent 11-second period, and the energy is strong (1434). The morning is cross-on and choppy, but the afternoon goes clean with an onshore breeze. It's a bit big for beginners, and the quality is listed as marginal, so it's a look-see spot.

Now, Monday the 20th is where it's at. The morning session is the pick of the first week. We've got a nice 6ft easterly-northeasterly swell with a 10-second period (moderate energy at 836), and the wind is glassy, dead calm. This is gonna be clean and lined up. The afternoon falls apart with a strong cross-on breeze, so get out early. Tuesday the 21st is okay, but the wind is a bit messy. We get a 5ft swell from the same direction, but it's a cross-shore breeze, so it's a bit of a gamble. The rest of the week is small and clean but not much push, with a 3ft to 4ft range.

The second week has a couple of promising pulses. On Friday the 24th, a new southerly swell fills in at 7ft with an 8-second period (moderate energy at 633). The morning has a clean cross-off breeze, but it's a short period swell, so it might be a bit sectiony. The real standout of the entire forecast is Saturday the 1st of August. We've got a solid 4ft southerly groundswell with a very long 13-second period (strong wave energy at 621). The wind is a solid offshore breeze from the west, which will groom it perfectly. This is a session for the experts and keen surfers, as the period is long, so it'll be powerful and hold up well on the reef. Sunday the 26th and Monday the 27th are small and clean, but the 28th has a clean 3ft southerly swell that's worth a look.

So, the best of the best is the Monday 20th of July morning for clean, fun waves, followed by the Saturday 1st of August morning for a more powerful, long-period groundswell with clean offshore winds. The water temp is about 64°, which is pretty normal for this time of year.

Rusty out.

Short Range Forecast

Light rain (total 4mm), mostly falling on Fri morning. Very mild (max 17°C on Fri night, min 13°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Wed morning, min 13°C on Mon night). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
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)
1
0
1
0
0
0
1
2
3
3
0
3
2
0
2
2
0
2
1
1
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
S
6
0.7
E
6
0.9
E
7
1.2
ESE
7
1.3
E
7
1.8
E
11
2.3
ENE
11
2.1
ENE
10
2
ENE
10
1.8
ENE
10
1.7
ENE
10
1.6
ENE
10
1.5
ENE
10
1.4
ENE
10
1.3
ENE
10
1.1
ENE
9
1.1
ENE
9
1
ENE
9
0.9
ENE
9
0.8
ENE
9
3
S
9
Wave Graph
Metric surfscale
Energy kJ
61
36
83
131
171
750
1211
943
803
689
596
522
464
402
339
212
207
172
133
106
1455
Wind (km/h)
5
S
5
SSE
10
SSE
20
SSE
20
SSE
15
SE
15
SE
10
ESE
5
ENE
5
NW
20
NE
10
NNW
5
N
10
ENE
5
NNW
10
NNW
20
NE
15
WNW
20
WNW
15
WSW
20
WSW
Wind State
glassy
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
glassy
glassy
cross-on
cross-off
cross
on
cross-off
cross-off
cross-on
off
off
cross-off
off
High Tide
10:34AM1.22m
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
rain showers
rain showers
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
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
2
1
1
Temp °C
16
16
17
17
17
17
17
16
16
16
16
16
16
16
16
19
19
17
21
21
15
Feels °C
15
15
13
13
13
13
13
13
15
14
13
14
15
15
15
17
17
16
17
17
10
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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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