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Posties Surf Forecast
/ SA – East Coast (28 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Posties surfForecast / SA – East Coast / Australia
16 Day Weather and Surf, issued 8 pm Friday 29 May 2026 ACSTForecast 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
16.5° C
(Which is 1.6°C warmer than normal for this time of year)Posties surf forecast from 29 May 2026:
- Best quality surf: Monday 1 Jun, 12AM (local time) - 11ft (3.5m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 4 Jun, 3PM (local time) - 18ft (5.5m), 12s period, SW swell with 8,469 kJ wave energy.
- Next surfable swell (1★+): Monday 1 Jun, 12AM (local time) - 11ft (3.5m), 12s period with SW swell.
Best Forecast Surf Conditions for Posties this week:
The surf forecast for Posties over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jun 01) at 12AM. The primary swell is predicted to be 3.5m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Posties in the next 16 days are 5.5m 12s and forecast to arrive on Thursday (Jun 04) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Monday (Jun 01) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 1st Jun) | 11ft (3.5m) 12s |
| Best Surf | 12AM (Mon 1st Jun) | 11ft (3.5m) 12s |
| Most Powerful | 3PM (Thu 4th Jun) | 18ft (5.5m) 12s |
Table - best surf conditions forecast for Posties over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Mon afternoon. Very mild (max 14°C on Fri night, min 9°C on Sun night). Winds increasing (light winds from the WNW on Sun night, strong winds from the N by Mon morning). | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Mon night. Very mild (max 15°C on Tue morning, min 11°C on Wed night). Winds decreasing (fresh winds from the WSW on Tue afternoon, light winds from the WNW by Wed afternoon). | ||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Fri 5 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SW 13 | WSW 12 | W 8 | WSW 10 | WSW 11 | SW 12 | SW 12 | SW 12 | SSW 11 | NW 8 | WNW 10 | SW 15 | W 13 | W 12 | W 12 | W 11 | WSW 11 | SW 12 | SSW 10 | SW 15 | SW 16 | |
253 | 1641 | 1314 | 2623 | 3692 | 5306 | 3673 | 1993 | 1008 | 571 | 897 | 1833 | 2877 | 2377 | 2184 | 3371 | 4373 | 8469 | 1924 | 939 | 1068 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross-off | on | on | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | |
High Tide | 12:09PM1.18m | 9:53PM0.70m | 12:42PM1.22m | 10:21PM0.69m | 1:14PM1.23m | 10:44PM0.68m | 1:45PM1.24m | 11:03PM0.68m | 2:16PM1.24m | 2:47PM1.23m | 3:20PM1.20m | ||||||||||
Low Tide | 4:14AM0.33m | 7:39PM0.69m | 4:44AM0.30m | 8:24PM0.68m | 5:13AM0.29m | 9:10PM0.68m | 5:41AM0.30m | 10:00PM0.68m | 6:08AM0.32m | 6:36AM0.36m | 7:07AM0.40m | ||||||||||
 |  | |  |  | |  | | |  |  |  | |  | | | | |  | | | |
 | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:15 | — |
 | — | — | 4:55 | — | — | 4:55 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:53 | — | — | 4:53 |
1 | 2 | 1 | 1 | — | — | — | 6 | 5 | 7 | 4 | 2 | 2 | — | — | 3 | 1 | 2 | 12 | 2 | — | |
Temp °C | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 11 | 14 | 13 | 15 | 14 | 14 | 12 | 13 | 13 | 14 | 14 | 14 | 12 | 13 |
10 | 9 | 5 | 6 | 5 | 7 | 9 | 3 | 7 | 8 | 9 | 7 | 9 | 4 | 8 | 7 | 8 | 8 | 6 | 2 | 3 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SE 6 | SSW 17 | SW 15 | SSW 18 | SW 12 | SW 12 | SW 12 | SSW 11 | SW 11 | WNW 10 | WNW 12 | SW 14 | SW 14 | SW 13 | S 9 | SW 19 | — | SSW 10 | W 9 | SW 16 |
 kJ | 253 | 1 | 28 | 60 | 31 | 5306 | 3673 | 1993 | 1008 | 254 | 795 | 1622 | 667 | 639 | 569 | 145 | 90 | — | 1924 | 484 | 1068 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | SW 18 | E 10 | — | — | — | — | — | SW 19 | SSW 11 | SW 16 | W 18 | S 10 | S 9 | SSW 9 | WSW 18 | — | — | SW 12 | S 9 | SSE 8 |
| kJ | 4 | 13 | 2 | — | — | — | — | — | 95 | 202 | 897 | 160 | 87 | 164 | 227 | 64 | — | — | 619 | 412 | 240 |
Swell 3 Height (m) Direction Period (s) | S 20 | E 10 | — | — | — | — | — | — | — | SW 17 | S 10 | — | SW 21 | SSW 20 | SW 20 | SW 19 | — | — | SW 15 | SW 15 | W 8 |
| kJ | 7 | 2 | — | — | — | — | — | — | — | 424 | 133 | — | 18 | 39 | 60 | 89 | — | — | 432 | 939 | 173 |
Wind waves Height (m) Direction Period (s) | W 6 | WSW 12 | W 8 | WSW 10 | WSW 11 | — | — | NNE 4 | NNW 6 | NW 8 | N 4 | SW 15 | W 13 | W 12 | W 12 | W 11 | WSW 11 | SW 12 | W 11 | SW 9 | — |
| kJ | 212 | 1641 | 1314 | 2623 | 3692 | — | — | 21 | 193 | 571 | 17 | 1833 | 2877 | 2377 | 2184 | 3371 | 4373 | 8469 | 1096 | 197 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 79 | 79 | 286 | 265 | 286 | 85 | 0 | 20 | 460 | 11 | 11 | 191 | 286 | 770 | 571 | 79 | 79 | 79 | 641 | 571 | 769 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.
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 16 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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