Diamond Head surfForecast / NSW – Port Macquarie / Australia

information circle12 Day Weather and Surf, issued 4 am Monday 15 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Diamond Head surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diamond Head sea temperature is
22.6° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Diamond Head this week:

The surf forecast for Diamond Head over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 17) at 5AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.1m and 9s. Another secondary swell of 1.0m and 8s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Diamond Head in the next 12 days are 3.0m 7s and forecast to arrive on Sunday (Dec 21) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 10s period and expected on Wednesday (Dec 17) at 2AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 17th Dec)4.5ft (1.4m) 12s
Best Surf11PM (Sun 21st Dec)8ft (2.4m) 8s
Most Powerful 5PM (Sun 21st Dec)10ft (3.0m) 7s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Mon morning. Warm (max 22°C on Mon morning, min 17°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sat afternoon. Warm (max 30°C on Fri morning, min 19°C on Thu morning). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
1
1
1
1
2
0
0
1
0
2
2
0
0
2
2
0
2
Swell
Height Map
Wave Height (m) & direction (?)
1.4
S
1.8
SSE
1.2
S
1.3
S
1.4
S
0.9
S
1.3
S
1.2
S
1
S
0.9
S
0.8
S
1.4
NE
1.3
NE
1.6
NE
1.6
NE
1.1
NE
1.3
NE
1.7
NE
1.5
NE
3
NE
1.8
NE
Period(s) (?)67911101312121111116666667778
Wave
Graph
(?)Metric surfscale
Energy kJ (?)132299251411418255480396248189146124107181184100115261235878388
Wind
(km/h)
20
S
20
SE
10
ESE
10
E
15
E
10
NE
15
ENE
15
ENE
10
N
15
NE
25
NE
15
N
10
NE
0
SSE
5
SW
10
E
20
NNE
5
NNW
10
N
25
NNE
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
off
crosscrosscross-
off
cross-
on
glassglasscross-
on
crosscross-
off
cross-
off
crosscross-
off
High Tide
/ height (m)
5:50PM
0.76
6:54AM
1.01
6:41PM
0.74
7:35AM
1.07
7:31PM
0.72
8:15AM
1.13
8:20PM
0.72
8:55AM
1.18
9:08PM
0.72
9:34AM
1.22
9:54PM
0.72
10:12AM
1.24
10:38PM
0.73
Low Tide
/ height (m)
12:28PM
0.36
12:03AM
0.19
1:23PM
0.33
12:42AM
0.18
2:11PM
0.29
1:21AM
0.17
2:55PM
0.25
2:01AM
0.17
3:37PM
0.22
2:41AM
0.17
4:19PM
0.18
3:21AM
0.18
4:59PM
0.16
4:02AM
0.20
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise5:37--5:37--5:37--5:37--5:37--5:39--5:39--
Sunset-7:49--7:50--7:50--7:51--7:52--7:52--7:52-
rain showers
cloud
light rain
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
rain showers
rain showers
clear
cloud
light rain
Rain (mm)
1-1-------------12--2
Temp. °C222220202120212120242723302923262723333426
Feels °C (?)212119192019202019232521302926272726333428
  • 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 Diamond Head Surf forecast

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

Diamond Head is 33 km (20 miles) from the city of Port Macquarie. If you plan a holiday in Port Macquarie, look for hotels and other accommodation in Port Macquarie. Port Macquarie has rooms for a wide range of budgets as well as car hire and transport links.

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