Surf Forecasts:
Manly-South Steyne surf forecast from 8 Aug 2026:
- Best quality surf: Thursday 13 Aug, 7PM (local time) - 6.5ft (2.0m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 4PM (local time) - 8ft (2.5m), 11s period, S swell with 1,492 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 7AM (local time) - 4.5ft (1.4m), 8s 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 13) at 7AM. The primary swell is predicted to be 1.4m and 8s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Manly-South Steyne in the next 16 days are 2.5m 11s and forecast to arrive on Thursday (Aug 13) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Monday (Aug 10) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 13th Aug) | 4.5ft (1.4m) 8s |
| Best Surf | 7PM (Thu 13th Aug) | 6.5ft (2.0m) 11s |
| Most Powerful | 4PM (Thu 13th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Manly-South Steyne over the next 16 days.
The Lowdown
G’day, it’s Rusty.
First things first – the first few days are a total flat spell at Manly-South Steyne (Manly-South Steyne). From Sunday the 9th all the way through Wednesday the 12th, you’re lookin’ at barely a ripple. Swell’s tiny, energy’s weak (2 to 45), and even with some clean moments, it’s knee-slappers at best. Not worth paddlin’ out.
Thursday the 13th finally gives us somethin’. The morning brings a solid 5ft southerly swell (333 energy), clean under a moderate SW offshore breeze. It’s surfable but still ordinary. By the afternoon, the swell jumps to 8ft southerly but a cross-shore wind chops it up. That size ain’t for beginners.
Friday the 14th morning drops to 5ft southerly, but it’s glassy with a light WSW offshore – the cleanest you’ll see in this stretch. It’s still ordinary surf, but for a few fun waves, that’s your pick.
From Saturday the 15th through Wednesday the 19th, it’s mostly a dud. Swell hovers around 3ft to 6ft, but onshore winds and chop ruin nearly every session. Skip it.
Thursday the 20th morning surprises us: 6ft easterly swell (369 energy) turns clean under a light NW cross-off breeze. That’s a sneaky good session.
The big one lands on Sunday the 23rd morning. It’s a beauty: 8ft southerly swell (2012 energy), dead glassy with a light northerly breeze. The water’s a touch warmer than usual for this time of year. That’s big, clean, powerful – but at 8ft, it’s only for the experienced crew.
Monday the 24th morning cleans up again with 5ft easterly groundswell (1136 energy) and glassy conditions under a WSW breeze. That’s another solid one, though further out.
So your windows: Friday the 14th morning for clean and manageable, Thursday the 20th morning for a sneaky good one, and Sunday the 23rd morning for the big, glassy standout. That Sunday’s the one to circle.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 19°C on Sun afternoon, min 10°C on Mon morning). Winds increasing (light winds from the NNW on Sat night, strong winds from the NW by Mon afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Wed morning, min 9°C on Thu night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the S by Thu afternoon). | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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) | E 8 | S 5 | NE 4 | E 14 | ENE 9 | S 13 | E 13 | SSW 7 | S 13 | S 12 | S 8 | S 9 | S 7 | S 9 | S 11 | S 9 | S 10 | S 9 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 63 | 2 | 24 | 4 | 0 | 3 | 3 | 4 | 4 | 44 | 32 | 41 | 24 | 328 | 1492 | 328 | 377 | 230 | 260 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross | off | off | cross-on | cross-off |
High Tide | 4:58AM0.98m | 5:10PM1.58m | 6:05AM1.04m | 6:08PM1.67m | 7:01AM1.10m | 7:01PM1.74m | 7:50AM1.17m | 7:51PM1.76m | 8:35AM1.24m | 8:37PM1.72m | 9:18AM1.29m | 9:21PM1.64m | |||||||
Low Tide | 11:05PM0.25m | 10:26AM0.37m | 00:08AM0.14m | 11:31AM0.33m | 1:02AM0.05m | 12:29PM0.27m | 1:50AM-0.01m | 1:23PM0.22m | 2:34AM-0.04m | 2:14PM0.19m | 3:14AM-0.02m | 3:03PM0.19m | 3:52AM0.02m | ||||||
 |  |  |  |  |  |  | | | | | | | | | | | | | |
 | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | — | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — |
mm | — | — | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 15 | 17 | 19 | 16 | 16 | 15 | 16 | 18 | 19 | 13 | 18 | 16 | 12 | 14 | 15 | 13 | 15 | 15 | 16 |
Feels °C | 12 | 13 | 15 | 9 | 7 | 5 | 10 | 14 | 15 | 9 | 11 | 9 | 4 | 8 | 11 | 9 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | E 8 | ENE 9 | ENE 9 | E 14 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 9 | S 10 | S 9 | S 10 | S 9 | S 8 |
| kJ | 63 | 115 | 158 | 4 | 658 | 501 | 154 | 76 | 75 | 46 | 45 | 49 | 50 | 328 | 776 | 328 | 377 | 230 | 161 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | NE 4 | SSE 8 | S 7 | — | S 13 | E 13 | SSW 7 | SSW 6 | S 9 | S 8 | S 9 | S 7 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 17 | 2 | 6 | 1 | — | 3 | 3 | 4 | 4 | 40 | 32 | 41 | 24 | 29 | 17 | 19 | 9 | 19 | 18 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | S 5 | S 5 | SE 10 | — | — | — | — | S 13 | S 12 | S 11 | NNE 4 | S 13 | S 16 | — | S 16 | — | S 17 | S 19 |
| kJ | 13 | 2 | 2 | 4 | — | — | — | — | 3 | 44 | 9 | 2 | 3 | 5 | — | 5 | — | 6 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | NE 6 | NNW 4 | NW 4 | NW 4 | WNW 3 | WNW 2 | NW 3 | N 3 | WNW 3 | SW 4 | WSW 4 | S 11 | WSW 3 | W 3 | — | S 8 |
| kJ | — | — | 24 | 293 | 28 | 49 | 10 | 7 | 1 | 2 | 4 | 5 | 39 | 10 | 1492 | 3 | 2 | — | 260 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 18 | 401 | 29 | 178 | 29 | 1 | 1 | 1 | 3 | 66 | 16 | 0 | 0 | 0 | 0 | 12 | 4 |
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.
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