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Surf Forecasts:

Triangles surfForecast / NSW – Newcastle / Australia

information circle12 Day Weather and Surf, issued 4 pm Wednesday 11 Mar 2026 AEDT
Forecast update in hr  min  s Forecast update imminent
Triangles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Triangles sea temperature is
24.1° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Triangles this week:

The surf forecast for Triangles over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 12) at 5AM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.5m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Triangles in the next 12 days are 2.0m 10s and forecast to arrive on Wednesday (Mar 11) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Friday (Mar 13) at 8PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 12th Mar)5ft (1.6m) 10s
Best Surf 5AM (Thu 12th Mar)5ft (1.6m) 10s
Most Powerful11PM (Wed 11th Mar)6.5ft (2.0m) 10s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Light rain (total 4mm), mostly falling on Thu night. Warm (max 25°C on Wed afternoon, min 20°C on Thu night). Winds increasing (light winds from the WSW on Wed night, fresh winds from the S by Fri afternoon).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Mon night. Warm (max 23°C on Mon afternoon, min 17°C on Sun morning). Winds decreasing (fresh winds from the NE on Sun night, light winds from the WSW by Tue morning).

Wed
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
ENE
1.9
ENE
1.7
E
1.5
E
1.5
E
1.5
E
1.3
E
1.1
E
1
E
0.9
ESE
1
E
0.8
E
0.6
E
1.2
NE
0.9
ENE
1.5
ENE
1
ENE
0.7
ENE
0.5
ENE
1.7
SSE
1.3
SE
Period(s) (?)8101212111212111110109956566665
Wave
Graph
(?)Metric surfscale
Energy kJ (?)581671773583566636464291233170186103567759133803421183103
Wind
(km/h)
35
ENE
15
N
25
S
30
SSE
25
SSE
20
SSE
35
S
20
SSE
15
ESE
15
E
10
NNE
10
NNE
25
NE
15
N
10
N
10
SSE
10
SW
5
WSW
15
SE
20
SE
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncrosscross-
off		crosscrosscrosscross-
off		crosscross-
on		oncross-
on		cross-
on		oncross-
on		cross-
on		crossoffoffcrosscross-
on		cross
High Tide
/ height (m)
2:50PM
0.86
3:17AM
1.23
4:22PM
0.85
4:31AM
1.25
5:39PM
0.90
5:35AM
1.31
6:32PM
0.98
6:25AM
1.39
7:14PM
1.08
7:09AM
1.47
7:51PM
1.19
7:49AM
1.53
8:27PM
1.31
8:29AM
1.57
Low Tide
/ height (m)
8:12PM
0.58
10:34AM
0.52
9:32PM
0.61
11:43AM
0.46
10:52PM
0.58
12:33PM
0.38
11:55PM
0.51
1:12PM
0.28
12:47AM
0.43
1:47PM
0.19
1:33AM
0.34
2:20PM
0.11
2:16AM
0.26
Wed
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Sunrise--6:50--6:50--6:50--6:52--6:52--6:52--6:54
Sunset7:16--7:15--7:15--7:14--7:12--7:10--7:09--
clear
clear
clear
part cloud
light rain
light rain
rain showers
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
light rain
light rain
part cloud
thunderstorm
thunderstorm
cloud
Rain (mm)
----121--------15-17-
Temp. °C252423222120202120212019222222232122232323
Feels °C (?)222221191817151718191818191822222324242423
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Triangles surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Triangles at:
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Information about the Triangles Surf forecast

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

Triangles is 12 km (7 miles) from the city of Catherine Hill Bay. If you plan a holiday in Newcastle, look for hotels and other accommodation in Catherine Hill Bay. Catherine Hill Bay has rooms for a wide range of budgets as well as car hire and transport links.

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