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Posties Surf Forecast
/ SA – East Coast (28 breaks) / South Australia (91 breaks) /
Surf Forecasts
Posties surfForecast / SA – East Coast / Australia
48hr Weather and Surf, issued 2 am Sunday 18 May 2025 ACSTForecast update in -2hr 28 min 57 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
63.0°F
(Which is 3.6°F warmer than normal for this time of year)How big are the waves at Posties today?
The current surf forecast for Posties at 9AM is: 11ft 14s primary swell from a Southwest direction (forecast issued at 02:30am May 18). The wind direction is predicted to be cross-shore and the swell rating is 3.
| Time (ACST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 11ft (3.5m) | 14s |
| Afternoon (18 May) | 11ft (3.5m) | 14s |
| Evening (18 May) | 10ft (3.0m) | 13s |
Table - waves today at Posties. (Swell directed towards the surf break)
Updates in -2 hr 28 min 57 s Forecast update imminent
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 10 | 10 | 11 | 11 | 12 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 16 | 15 | 15 | 15 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 6488 | 6140 | 5633 | 4927 | 4432 | 4111 | 3717 | 3299 | 2959 | 2532 | 2103 | 1697 | 1494 | 1559 | 1676 | 1817 | 1697 | 1452 | 1100 | 899 | 678 | 698 | 1524 | 1816 | 2288 | 2078 | 2104 | 4822 | 5413 | 6408 | 6319 | 5861 | 4969 | 2626 | 3676 | 3135 | 2831 | 4368 | 4890 | 4931 | 7399 | 14199 | 11563 | 10216 | 9416 | 8341 | 6539 | 5233 | 4899 | 4704 | 4258 | 3919 | 4201 | 4568 | 4363 | 4242 | 3894 | 3706 | 3125 | 3075 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross | cross- on | cross- on | cross- on | cross | glass | cross- off | cross- off | cross- off | glass | cross- on | glass | off | off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | on | on | cross- on | cross- on | cross- on | on | on | on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | cross- off |
High Tide / height (ft) | 3:43PM 3.77 | 4:34PM 3.58 | 5:43PM 3.31 | 7:16PM 3.08 | 9:51AM 2.4 | 8:29PM 2.82 | 10:11AM 2.82 | 9:14PM 2.59 | 10:44AM 3.22 | 9:40PM 2.33 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (ft) | 7:15AM 1.08 | 7:41AM 1.31 | 8:06AM 1.61 | 7:48AM 1.97 | 3:51AM 2.13 | 1:32PM 2.36 | 3:29AM 2 | 4:16PM 2.26 | 3:31AM 1.8 | 5:42PM 2.1 | 3:42AM 1.54 | |||||||||||||||||||||||||||||||||||||||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 |
| Sunset | - | - | - | - | - | 5:02 | - | - | - | - | - | - | - | 5:02 | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 4:59 | - | - | - | - | - | - |
 | | |  |  |  |  | | | | | | | | | | | | | | | |  |  | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Rain (in) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 0.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °F | 54 | 54 | 54 | 54 | 55 | 54 | 54 | 54 | 52 | 50 | 50 | 50 | 54 | 52 | 52 | 50 | 50 | 50 | 48 | 48 | 57 | 61 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 54 | 54 | 54 | 55 | 55 | 55 | 55 | 54 | 55 | 54 | 52 | 48 | 46 | 57 | 61 | 61 | 55 | 54 | 54 | 54 | 55 | 63 | 64 | 61 | 59 | 55 | 55 | 55 | 55 |
| Feels °F (?) | 43 | 43 | 43 | 43 | 45 | 45 | 46 | 48 | 48 | 45 | 45 | 45 | 50 | 46 | 48 | 43 | 43 | 39 | 37 | 36 | 43 | 46 | 46 | 43 | 43 | 45 | 46 | 46 | 48 | 48 | 48 | 46 | 48 | 48 | 50 | 50 | 50 | 50 | 50 | 52 | 50 | 46 | 43 | 39 | 50 | 54 | 54 | 46 | 43 | 43 | 45 | 46 | 54 | 57 | 57 | 54 | 48 | 50 | 52 | 50 |
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Surf Rating (10 Max)
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FREE! Surf-Forecast.com widget for your website
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