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Posties Surf Forecast
/ SA – East Coast (28 breaks) / South Australia (91 breaks) /
Posties surfForecast / SA – East Coast / Australia
12 Day Weather and Surf, issued 3 am Monday 20 Jan 2025 ACDT
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 Monday (Jan 20) at 7AM. The primary swell is predicted to be 2.1m and 16s period with a secondary swell of 0.2m and 9s. Another secondary swell of 0.5m and 7s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Posties in the next 12 days are 3.5m 13s and forecast to arrive on Saturday (Jan 25) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 7s period and expected on Monday (Jan 20) at 4PM.
| Wave Type | Time (ACDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 20th Jan) | 7ft (2.1m) 16s |
| Best Surf | 4AM (Sun 26th Jan) | 10ft (3.0m) 13s |
| Most Powerful | 7PM (Sat 25th Jan) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Posties over the next 12 days.
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 11 | 11 | 12 | 12 | 12 | 10 | 12 | 13 | 13 | 14 | 14 | 13 | 13 | 10 | 11 | 11 | 12 | 11 | 16 | 14 | 13 | 13 | 13 | 12 | 13 | 13 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 2129 | 1647 | 2024 | 1011 | 932 | 718 | 518 | 625 | 1965 | 1236 | 1351 | 1142 | 603 | 734 | 1172 | 2925 | 3280 | 2677 | 3105 | 2570 | 1247 | 673 | 1695 | 2728 | 2329 | 2369 | 1450 | 1242 | 1285 | 839 | 865 | 1535 | 1803 | 5351 | 8285 | 15463 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- on | cross | cross- off | cross | cross- on | on | on | cross- on | on | cross- on | cross | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- off | cross | on | on | on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 4:48PM 0.79 | 4:22AM 0.98 | 5:29PM 0.79 | 4:27AM 0.93 | 6:18PM 0.78 | 4:20AM 0.88 | 7:44PM 3:42AM 0.76 0.85 | 2:21AM 0.89 | 1:39AM 0.97 | 1:44AM 1.06 | 2:53PM 0.37 | 2:02AM 1.14 | 1:30PM 0.42 | 2:25AM 1.19 | 1:47PM 0.48 | 2:48AM 1.21 | 2:07PM 0.55 | 3:10AM 1.19 | 2:30PM 0.64 | 3:29AM 1.13 | ||||||||||||||||
Low Tide / height (m) | 10:53AM 0.36 | 10:10PM 0.49 | 11:10AM 0.33 | 10:33PM 0.57 | 11:29AM 0.31 | 10:49PM 0.66 | 11:48AM 0.30 | 10:39PM 0.75 | 12:07PM 0.30 | 12:25PM 0.31 | 12:41PM 0.34 | 12:16PM 0.37 | 4:01PM 0.37 | 10:45AM 0.39 | 6:03PM 0.33 | 10:25AM 0.41 | 6:57PM 0.28 | 10:15AM 0.43 | 7:41PM 0.24 | 10:10AM 0.45 | 8:18PM 0.22 | |||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||||||||||||
| Sunrise | 6:05 | - | - | 6:05 | - | - | 6:07 | - | - | 6:07 | - | - | 6:09 | - | - | 6:11 | - | - | 6:11 | - | - | 6:13 | - | - | 6:13 | - | - | 6:15 | - | - | 6:16 | - | - | 6:16 | - | - |
| Sunset | - | 8:29 | - | - | 8:28 | - | - | 8:28 | - | - | 8:27 | - | - | 8:27 | - | - | 8:25 | - | - | 8:24 | - | - | 8:24 | - | - | 8:23 | - | - | 8:22 | - | - | 8:22 | - | - | 8:21 | - |
 |  |  | | |  | | | |  | | | | | | | | | | | | | | | | | | | | | | |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 20 | 20 | 17 | 19 | 18 | 17 | 16 | 15 | 14 | 15 | 16 | 15 | 17 | 18 | 17 | 16 | 16 | 14 | 29 | 29 | 24 | 16 | 16 | 15 | 15 | 15 | 16 | 20 | 20 | 17 | 18 | 18 | 17 | 17 | 17 | 14 |
| Feels °C (?) | 18 | 17 | 15 | 16 | 14 | 12 | 10 | 8 | 9 | 10 | 12 | 11 | 13 | 13 | 15 | 13 | 12 | 10 | 24 | 22 | 21 | 11 | 10 | 9 | 9 | 8 | 12 | 17 | 17 | 17 | 14 | 14 | 11 | 10 | 9 | 6 |
Short Range Forecast: Mostly dry. Warm (max 20°C on Mon morning, min 14°C on Wed night). Mainly fresh winds. | Days 3-6 Weather Summary Some drizzle, heaviest during Thu morning. Very mild (max 18°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 29°C on Sun morning, min 15°C on Mon morning). Winds increasing (light winds from the WNW on Sun night, fresh winds from the SE by Tue afternoon). | Long Range Forecast: Some drizzle, heaviest during Fri afternoon. Warm (max 20°C on Wed morning, min 14°C on Fri night). Winds increasing (light winds from the SSW on Wed night, strong winds from the W by Fri morning). | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 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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