Flat Rock surfForecast / NSW – Newcastle / Australia

information circle12 Day Weather and Surf, issued 10 pm Saturday 20 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Flat Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Flat Rock sea temperature is
22.8° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Flat Rock this week:

The surf forecast for Flat Rock over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 21) at 2AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.9m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Flat Rock in the next 12 days are 1.6m 8s and forecast to arrive on Sunday (Dec 21) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 10s period and expected on Wednesday (Dec 24) at 8AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 21st Dec)5ft (1.6m) 7s
Best Surf 2AM (Sun 21st Dec)5ft (1.6m) 7s
Most Powerful11PM (Sun 21st Dec)5ft (1.6m) 8s

Table - best surf conditions forecast for Flat Rock over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Mon night. Warm (max 32°C on Sun night, min 19°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the SE by Mon night).

Days 3-6 Weather Summary Some drizzle, heaviest during Thu night. Warm (max 22°C on Wed afternoon, min 18°C on Wed night). Mainly fresh winds.

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sat
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
NE
0.6
ENE
1.1
ENE
1
ENE
0.6
ENE
0.5
ENE
1.2
ESE
0.7
ESE
0.9
ESE
0.1
E
0.1
E
1.5
E
0.7
ENE
0.3
ENE
0.1
E
0.2
E
0.3
NE
0.7
E
0.7
E
0.7
E
0.8
E
Period(s) (?)7758985651515566149134444
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2474257131693783334344111367762514191421
Wind
(km/h)
5
NNW
0
SSW
30
NE
10
W
20
WNW
20
ENE
20
S
10
ESE
15
E
15
SSE
10
ENE
35
ENE
10
WSW
20
S
30
SSE
20
SSE
15
SSE
20
SSE
10
SE
15
ESE
20
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscross-
on
offoffcross-
on
crossononcross-
on
cross-
on
cross-
on
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
ononon
High Tide
/ height (m)
9:52PM
1.17
9:47AM
1.76
10:34PM
1.18
10:25AM
1.76
11:17PM
1.19
11:03AM
1.73
11:58PM
1.20
11:43AM
1.68
12:41AM
1.21
12:25PM
1.62
1:26AM
1.24
1:12PM
1.53
2:15AM
1.28
2:05PM
1.43
Low Tide
/ height (m)
3:11AM
0.48
4:39PM
0.26
3:52AM
0.50
5:17PM
0.24
4:34AM
0.53
5:56PM
0.25
5:17AM
0.56
6:35PM
0.26
6:04AM
0.58
7:15PM
0.29
6:58AM
0.59
7:57PM
0.32
7:59AM
0.59
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sat
27
Sunrise-5:39--5:41--5:41--5:41--5:41--5:43--5:43-
Sunset--8:00--8:00--8:00--8:00--8:01--8:01--8:01
clear
part cloud
part cloud
cloud
part cloud
part cloud
light rain
clear
clear
part cloud
cloud
part cloud
clear
clear
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
clear
Rain (mm)
------1--------1-----
Temp. °C253131323132232223212022222120181918181919
Feels °C (?)263332313031212221181920181917141615151616
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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Information about the Flat Rock Surf forecast

The above surf forecast table for Flat Rock provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Flat Rock can be found by selecting the local surf guide option on the grey menu. Our Flat Rock 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 (Flat Rock) 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 Flat Rock 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.

Are you planning a holiday in Newcastle? If you are looking for accommodation near Flat Rock, camping, hotels and holiday cottages in Newcastle, consider staying in Newcastle which is 2 km (1 miles) away. Other places in and around Newcastle where you can find information about places to rent, and car hire include Catherine Hill Bay which is 30 km (19 miles) away, Port Stephens, Cessnock and Central Coast.

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