Surf Forecasts:
Manly-South Steyne surf forecast from 23 Aug 2026:
- Best quality surf: Friday 28 Aug, 1AM (local time) - 4.5ft (1.3m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 1AM (local time) - 4.5ft (1.3m), 11s period, S swell with 403 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 7AM (local time) - 5ft (1.6m), 9s period with S swell.
Best Forecast Surf Conditions for Manly-South Steyne this week:
The surf forecast for Manly-South Steyne over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 7AM. The primary swell is predicted to be 1.6m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Manly-South Steyne in the next 16 days are 1.3m 11s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 27th Aug) | 5ft (1.6m) 9s |
| Best Surf | 1AM (Fri 28th Aug) | 4.5ft (1.3m) 11s |
| Most Powerful | 1AM (Fri 28th Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Manly-South Steyne over the next 16 days.
The Lowdown
G'day, it's Rusty. Let's be straight with you – the next 16 days for Manly-South Steyne are looking pretty grim. There's a long stretch of nothing worthwhile, and honestly, a lot of it is a write-off for a paddle surfer. You're looking at a gap of about a week before we see anything that's even worth a mention, and even then, it's not much to get excited about.
We start on Monday the 24th with nothing. Tiny, messy swell and onshore winds. Tuesday the 25th is even smaller, and we go through to Wednesday the 26th with barely a ripple. You're better off staying home.
Thursday the 27th morning is the first real glimmer. We get a pulse of 5 ft S swell, but the period is a short 8 seconds, so it's going to be a bit lumpy and weak. The combined energy is moderate (304). The wind is light and cross-off, so the surface will be clean. It's surfable, but ordinary. The afternoon gets pushed onshore again, so get in early if you're keen.
Friday the 28th is a step back – 3 ft to 4 ft, onshore winds, and the conditions are just poor. The energy is moderate (245-346) but the wind kills it.
Saturday the 29th morning is the best of a bad bunch for the first week. We've got a 4 ft SSE swell with a 10-second period, and the wind is glassy. The surface will be like a mirror, a total treat for the conditions. The combined energy is moderate (220). It's a rare moment of calm. But the crowds at Manly can be a problem, and with the only decent window being a Saturday morning, expect it to be busy.
Then we hit another big gap. Sunday the 30th through to Thursday the 3rd of September is all tiny, inconsistent, and mostly wind-affected. A few sessions have clean conditions, but the swell is just too small to bother with. The energy is weak to non-existent, often under 100.
Now, Friday the 4th of September shows a bit of life. The afternoon session has a 3 ft S swell, and the wind is a moderate 15 mph offshore. That will produce clean, lined-up waves, and the energy is moderate (230). It's surfable, but still not a standout.
The one true standout is the morning of Saturday the 5th of September. This is your best shot. The swell is 3 ft from the SSE, but the period is a very long 16 seconds. That's proper groundswell. The combined energy is strong (524). The wind is a gentle 9 mph cross-off, so it will be clean. For a reef break like Manly-South Steyne, that long period will be a real treat, wrapping in nicely. The wave quality will be much better than the height suggests. This is the one to circle on the calendar. The afternoon gets blown out by a strong onshore, so don't be late.
After that, it's back to small, onshore, and ordinary for the rest of the run. Sunday the 6th and beyond is all tiny, weak, and messy. The combined energy drops off a cliff. The water temperature is about average for this time of year.
Overall, if you're a paddle surfer, you've got two windows: Saturday morning the 29th and Saturday morning the 5th of September. The 5th is the real pick, but it's a long way out and things can change. For the rest, you're better off with a kite.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed morning. Warm (max 22°C on Tue morning, min 14°C on Sun night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 16 | S 11 | S 11 | S 8 | S 8 | S 8 | S 11 | S 9 | S 11 | SSE 10 | SSE 10 | SSE 10 | SSE 9 |
Wave Graph | |||||||||||||||||||
202 | 118 | 89 | 46 | 27 | 27 | 21 | 9 | 9 | 341 | 283 | 195 | 403 | 162 | 338 | 205 | 210 | 183 | 136 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-on | cross-off | cross-on | on | cross-on | glassy | on | on |
High Tide | 5:49AM0.92m | 5:45PM1.39m | 6:30AM0.99m | 6:27PM1.45m | 7:07AM1.06m | 7:05PM1.51m | 7:42AM1.14m | 7:41PM1.53m | 8:16AM1.21m | 8:16PM1.53m | 8:50AM1.28m | 8:52PM1.50m | |||||||
Low Tide | 11:58PM0.37m | 11:07AM0.49m | 00:38AM0.30m | 11:56AM0.43m | 1:12AM0.23m | 12:39PM0.37m | 1:44AM0.17m | 1:19PM0.32m | 2:15AM0.13m | 1:59PM0.28m | 2:45AM0.10m | 2:40PM0.25m | 3:16AM0.10m | ||||||
— | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | |
mm | — | — | — | — | — | 3 | 2 | 4 | 2 | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 17 | 19 | 18 | 17 | 22 | 18 | 16 | 16 | 16 | 15 | 16 | 15 | 15 | 17 | 16 | 16 | 17 | 17 | 17 |
Feels °C | 14 | 16 | 14 | 14 | 19 | 16 | 15 | 13 | 13 | 13 | 14 | 12 | 14 | 14 | 13 | 15 | 16 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | S 10 | ENE 6 | S 10 | NE 6 | ENE 6 | ENE 7 | NE 8 | ENE 8 | ENE 8 | S 8 | S 8 | S 8 | S 11 | S 9 | S 11 | SSE 10 | SSE 10 | SSE 10 | SSE 9 |
202 | 39 | 89 | 116 | 49 | 131 | 182 | 143 | 105 | 341 | 283 | 195 | 403 | 162 | 338 | 205 | 210 | 183 | 136 | |
Swell 2 Height (m) Direction Period (s) | NE 4 | S 10 | S 17 | S 10 | S 9 | S 9 | S 9 | S 11 | S 11 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | NE 8 | ENE 4 | ENE 8 | ENE 8 | ENE 9 |
20 | 118 | 6 | 46 | 27 | 27 | 14 | 9 | 9 | 56 | 54 | 40 | 70 | 45 | 78 | 13 | 26 | 48 | 45 | |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 8 | — | S 18 | NE 9 | S 16 | S 16 | S 16 | — | S 15 | SSE 15 | SSE 14 | — | SSE 12 | SSW 9 | ENE 8 | NE 4 | S 16 | NE 4 |
7 | 7 | — | 6 | 21 | 19 | 21 | 5 | — | 4 | 21 | 41 | — | 83 | 8 | 25 | 4 | 5 | 3 | |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 6 | ENE 5 | NE 6 | NE 6 | NE 7 | NW 3 | S 4 | S 6 | — | — | — | — | — | ENE 8 | NE 4 | NE 4 | ENE 8 | NE 4 |
47 | 86 | 54 | 226 | 113 | 235 | 2 | 13 | 106 | — | — | — | — | — | 75 | 23 | 10 | 90 | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 3 | 168 | 29 | 1 | 1 | 1 | 12 | 63 | 0 | 0 | 28 | 0 | 4 | 117 | 4 | 0 | 28 | 28 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Manly-South Steyne Surf forecast
The above surf forecast table for Manly-South Steyne provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Manly-South Steyne can be found by selecting the local surf guide option on the grey menu. Our Manly-South Steyne 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 (Manly-South Steyne) 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 Manly-South Steyne 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.
Manly-South Steyne is 5 km (3 miles) from Dee Why. If you plan a holiday in Sydney North Coast, look for hotels and other accommodation in Dee Why. Dee Why has rooms for a wide range of budgets as well as car hire and transport links.











