Long Reef surf break

Long Reef surfForecast / NSW – Sydney North Coast / Australia

information circle12 Day Weather and Surf, issued 10 pm Thursday 11 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Long Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Long Reef sea temperature is
22.7° C
(Which is 1.2°C warmer than normal for this time of year)


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 Friday (Dec 12) at 11PM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 1.0m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Long Reef in the next 12 days are 2.4m 9s and forecast to arrive on Monday (Dec 15) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Sunday (Dec 14) at 11PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 12th Dec)3.5ft (1.1m) 11s
Best Surf11PM (Fri 12th Dec)3.5ft (1.1m) 11s
Most Powerful 2PM (Mon 15th Dec)8ft (2.4m) 9s

Table - best surf conditions forecast for Long Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 14mm), heaviest on Fri afternoon. Warm (max 27°C on Sun afternoon, min 17°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Sun night, min 17°C on Mon afternoon). Winds decreasing (strong winds from the S on Sun night, light winds from the SSE by Wed morning).

Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
2
1
0
2
1
0
0
1
0
0
0
0
2
1
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
E
1
E
1.1
E
1.1
E
1.3
E
1.5
ENE
1.2
ENE
1.1
E
1.7
ENE
2
S
2.2
S
1.9
SSE
1.4
SSE
1.9
S
1.5
S
1.5
S
1.2
S
1.1
S
1.1
S
0.9
S
0.8
S
Period(s) (?)13121211117677689698121111111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)88290333300394192123120286295682560160627324617354308298185131
Wind
(km/h)
15
SE
15
E
10
ENE
5
N
10
NE
25
NE
5
SW
5
N
25
NNE
35
S
15
SSE
20
SSE
20
SE
20
SE
20
SE
10
SSE
10
ESE
20
E
10
NNE
15
ENE
25
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
ononglasscross-
on
cross-
on
glassglasscross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
High Tide
/ height (m)
3:25AM
1.13
3:04PM
1.20
4:20AM
1.20
4:05PM
1.10
5:09AM
1.27
5:06PM
1.02
5:52AM
1.34
6:03PM
0.99
6:32AM
1.40
6:55PM
0.98
7:09AM
1.45
7:43PM
0.98
7:47AM
1.50
Low Tide
/ height (m)
8:55PM
0.24
9:07AM
0.56
9:42PM
0.30
10:22AM
0.56
10:26PM
0.34
11:30AM
0.51
11:08PM
0.37
12:27PM
0.45
11:48PM
0.39
1:15PM
0.38
12:28AM
0.40
1:58PM
0.31
1:08AM
0.41
2:37PM
0.26
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
Sunrise-5:37--5:37--5:37--5:37--5:37--5:37--5:39-
Sunset--7:58--7:59--8:00--8:00--8:00--8:01--8:01
rain showers
thunderstorm
mod rain
clear
clear
part cloud
rain showers
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
Rain (mm)
1210---1--------------
Temp. °C202120192223212627231818171818181920182021
Feels °C (?)182019202221202725211615141515151717161818
  • 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 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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