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Surf Forecasts:

Posties surfForecast / SA – East Coast / Australia

information circle12 Day Weather and Surf, issued 9 am Wednesday 26 Nov 2025 ACDT
Forecast update in hr  min  s Forecast update imminent
Posties surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Posties sea temperature is
15.5° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Posties this week:

The surf forecast for Posties over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 28) at 7PM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.8m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Posties in the next 12 days are 2.5m 15s and forecast to arrive on Tuesday (Dec 02) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Dec 03) at 10AM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Fri 28th Nov)8ft (2.5m) 13s
Best Surf 7PM (Fri 28th Nov)8ft (2.5m) 13s
Most Powerful 7AM (Tue 2nd Dec)8ft (2.5m) 15s

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

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

Short Range Forecast Light rain (total 8mm), mostly falling on Fri night. Very mild (max 15°C on Wed morning, min 11°C on Thu night). Winds decreasing (strong winds from the WNW on Wed afternoon, light winds from the W by Fri night).

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Sun afternoon. Very mild (max 16°C on Sun morning, min 11°C on Sun night). Winds decreasing (strong winds from the WNW on Sun afternoon, light winds from the SW by Mon night).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Tuesday
02
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
2
1
3
0
0
0
0
0
0
0
0
0
0
2
0
4
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
W
3
W
3
WSW
3
WSW
3
WSW
2.1
SSW
2.4
SSW
2.3
SSW
2.5
SSW
3
SSW
2.5
SSW
2
SSW
1.6
SW
1.4
SW
3
WSW
3.5
WSW
3
SW
2.5
WSW
2.5
WSW
2.4
WSW
2
WSW
Period(s) (?)81211121111121313131312141499912141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)890285423532429172697415431733190529751997109010797221474208317621776283823131309
Wind
(km/h)
35
W
40
WNW
30
WSW
30
W
25
WSW
15
WNW
30
WNW
20
NW
25
SSW
20
SW
25
WSW
25
W
30
WNW
40
WNW
40
W
25
SW
30
SSW
20
SSW
15
SW
20
WSW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
off		ononcross-
on		cross-
on		cross-
on		crosscross-
on		ononcross-
on		ononcross-
off
High Tide
/ height (m)
4:50AM
1.09
5:30AM
1.00
6:18AM
0.91
7:31AM
0.80
11:42PM
0.79
9:20AM
0.71
11:55PM
0.92
10:15AM
0.63
12:25AM
1.04
Low Tide
/ height (m)
8:30PM
0.34
8:52PM
0.42
8:57PM
0.53
5:03PM
0.61
4:12PM
0.57
5:51AM
0.70
4:17PM
0.51
7:36AM
0.62
4:31PM
0.43
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Sunrise5:39--5:39--5:39--5:37--5:37--5:37--5:37--
Sunset-8:07--8:08--8:09--8:10--8:12--8:13--8:14-
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
cloud
light rain
rain showers
cloud
cloud
cloud
part cloud
rain showers
rain showers
rain showers
rain showers
clear
part cloud
clear
clear
Rain (mm)
1------34----3311----
Temp. °C151513141312151313141313161413141312141412
Feels °C (?)7779899101210888668669910
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Posties 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 Posties at:
surf-forecast.com

Information about the Posties Surf forecast

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

Posties is 7 km (4 miles) from Allendale East. If you plan a holiday in South Australia - East Coast, look for hotels and other accommodation in Allendale East. Allendale East has rooms for a wide range of budgets as well as car hire and transport links.

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