Triangles surfForecast / NSW – Newcastle / Australia

information circle16 Day Weather and Surf, issued 3 am Wednesday 15 Apr 2026 AEST
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
22.5° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Triangles this week:

The surf forecast for Triangles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Apr 20) at 4AM. The primary swell is predicted to be 0.8m and 16s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Triangles in the next 16 days are 2.5m 12s and forecast to arrive on Tuesday (Apr 21) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 12s period and expected on Saturday (Apr 18) at 10PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 20th Apr)2.5ft (0.8m) 16s
Best Surf 4AM (Tue 21st Apr)8ft (2.5m) 12s
Most Powerful 4AM (Tue 21st Apr)8ft (2.5m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 27°C on Fri morning, min 14°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the SSW by Fri night).

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Mon afternoon. Very mild (max 18°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
!
!
Swell
Height Map
Wave Height (m) & direction (?)
0.3
E
0.3
E
0.2
E
0.2
E
0.2
E
0.4
NE
0.3
NE
0.4
NE
0.1
E
3
S
3
S
3.5
S
2.5
S
2.5
S
2.5
S
2.2
S
2.5
SSE
0.1
NE
0.1
NE
2.2
SSE
2.2
SSE
Period(s) (?)111110101045610101211111112121313131111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)222188864112000000007710601122
Wind
(km/h)
5
W
15
ESE
5
SW
5
NNE
20
ENE
15
W
15
WNW
5
WSW
20
SW
20
SSW
30
S
20
WSW
20
SW
20
SSE
15
WSW
20
SW
25
S
20
SSW
25
SW
35
SSW
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
on
cross-
off
cross-
on
oncross-
off
cross-
off
glassoffcross-
off
cross-
off
offcross-
off
crossoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
6:51PM
1.46
6:58AM
1.44
7:30PM
1.58
7:45AM
1.42
8:09PM
1.68
8:33AM
1.37
8:51PM
1.73
9:23AM
1.29
9:35PM
1.74
10:17AM
1.20
10:24PM
1.71
11:15AM
1.10
11:18PM
1.64
Low Tide
/ height (m)
12:32PM
0.11
12:57AM
0.23
1:10PM
0.08
1:45AM
0.13
1:48PM
0.08
2:33AM
0.05
2:27PM
0.12
3:23AM
0.02
3:08PM
0.19
4:17AM
0.03
3:53PM
0.27
5:14AM
0.08
4:42PM
0.36
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Sunrise6:15--6:15--6:16--6:16--6:16--6:18--6:18--
Sunset-5:31--5:30--5:30--5:28--5:27--5:25--5:24-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
rain showers
rain showers
rain showers
rain showers
Rain (mm)
----------------44434
Temp. °C202019212120272719171817171717181817171817
Feels °C (?)171819191818242513121212131314141413111211
  • 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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Quick surf report for Triangles:

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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 16 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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