Surf Forecasts:
Manly-South Steyne surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 4AM (local time) - 6ft (1.8m), 9s period, S swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 11ft (3.5m), 9s period, SSE swell with 2,160 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7AM (local time) - 2.5ft (0.7m), 10s 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 Saturday (Sep 05) at 7AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.2m and 9s. 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 3.5m 9s and forecast to arrive on Wednesday (Sep 09) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Saturday (Sep 05) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 5th Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 4AM (Mon 7th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 10PM (Wed 9th Sep) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Manly-South Steyne over the next 16 days.
The Lowdown
G’day, Rusty here, lookin’ at the stretch ahead for Manly-South Steyne. It’s a reef setup, sheltered, and it’s gonna be a bit of a waiting game. The first good news doesn’t hit until the 8th, so you’ve got a few days of nothing worth paddling out for.
Right now, through the 5th and 6th, it’s just poor surf. Tiny bump with a bit of cross-off or cross-onshore wind, nothing to get excited about. The 7th Monday morning shows a little life with a 5ft SSE swell, but it’s weak energy (259) and the period is short at 8 seconds. The wind is glassy though, which is a massive plus, but the waves are ordinary.
Now, Tuesday the 8th is where it gets interesting. The morning session is the standout. We’ve got a 7ft SSE swell pushing in from a solid 10-second period, and the combined energy is a healthy 945 (moderate). The wind is a clean cross-off from the S at just 9 mph, so the reef is gonna be looking clean. This is the best on offer, no question. It’s a bit of size though, over 5ft, so it’s not for beginners. With the swell direction from the SSE, it’s matching the optimum S direction nicely. The afternoon gets a bit messy with onshore wind and a 7ft swell, but the morning is the pick.
The 9th Wednesday morning drops back to 4ft SSE with clean cross-off wind, but the energy is weak (280) and the surf is very ordinary. The afternoon gets blown out with a strong 28 mph S wind, so skip that. The 10th Thursday holds a bit of size with 8ft and 7ft SSE swells, but the wind is cross-off again, though the conditions are marginal. The energy is strong (915-937), but the quality is questionable.
From the 11th Friday onward, it fades. The 12th Saturday morning has a small 4ft S swell with light cross-off wind and decent energy (400), but it’s a weak offering. The rest of the second week is filled with tiny, choppy, or onshore slop, with the combined energy barely breaking 200. The 13th Sunday has a weird 18-second period SSE swell (762 energy), but it’s a very long period groundswell that’ll be too straight for this beach-reef setup, and the wind is cross-on, making it a no-go. The 16th and 17th are just poor with tiny swell and light wind.
Crowds at Manly are always a possibility, especially on a Tuesday morning with clean waves.
So, the one true standout is Tuesday the 8th morning. Get out there early for a clean 7ft SSE set. The water temperature? It’s not flagged as unusual, so it’s about average for this time of year.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sat afternoon, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed night. Very mild (max 17°C on Wed morning, min 11°C on Tue night). Mainly strong winds. | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 11 | S 9 | S 9 | S 9 | SSW 7 | S 8 | S 10 | SSE 8 | SE 8 | SSE 9 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 10 | SSE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 59 | 60 | 42 | 27 | 99 | 102 | 983 | 257 | 147 | 1259 | 943 | 1071 | 518 | 274 | 617 | 2069 | 860 | 826 | 586 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | off | off | cross | cross-off | glassy | cross-on | cross-off | cross-off | on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 2:18AM0.94m | 2:40PM1.42m | 3:46AM0.94m | 3:54PM1.47m | 5:00AM1.00m | 5:00PM1.54m | 5:57AM1.09m | 5:56PM1.60m | 6:46AM1.19m | 6:47PM1.63m | 7:28AM1.28m | 7:32PM1.62m | |||||||
Low Tide | 7:49AM0.45m | 9:47PM0.30m | 9:09AM0.46m | 10:57PM0.22m | 10:24AM0.42m | 11:54PM0.14m | 11:29AM0.34m | 00:42AM0.07m | 12:24PM0.27m | 1:23AM0.03m | 1:15PM0.20m | 2:01AM0.03m | |||||||
 |  |  |  | | | | | | | | | | |  |  | | | | |
 | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — |
 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 16 | 28 | 30 | 23 | 20 | 18 | 16 | 18 | 16 | 15 | 14 | 14 | 14 | 17 | 14 | 14 | 13 | 13 | 14 |
Feels °C | 15 | 24 | 25 | 19 | 16 | 13 | 12 | 15 | 12 | 9 | 11 | 11 | 11 | 14 | 5 | 5 | 8 | 8 | 11 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | S 9 | NE 5 | ENE 6 | NE 7 | S 8 | S 10 | SSE 8 | S 9 | E 10 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | E 9 | S 19 | SSE 23 | SSE 23 | SSE 10 |
| kJ | 41 | 60 | 28 | 26 | 11 | 102 | 983 | 257 | 127 | 9 | 943 | 1071 | 518 | 274 | 2 | 28 | 50 | 104 | 586 |
Swell 2 Height (m) Direction Period (s) | S 11 | NE 5 | S 9 | S 9 | E 11 | NE 7 | ENE 10 | E 10 | E 10 | — | E 11 | E 10 | E 10 | NNE 4 | S 16 | E 16 | E 16 | E 15 | SSE 22 |
| kJ | 59 | 4 | 42 | 27 | 9 | 7 | 10 | 2 | 8 | — | 2 | 2 | 2 | 1 | 5 | 5 | 5 | 5 | 96 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 11 | S 15 | E 10 | E 10 | NE 8 | NE 8 | — | — | ENE 10 | NE 9 | E 9 | E 17 | — | NE 16 | E 9 | E 15 |
| kJ | 7 | 7 | 7 | 2 | 4 | 9 | 8 | 2 | 2 | — | — | 10 | 3 | 2 | 6 | — | 10 | 2 | 4 |
Wind waves Height (m) Direction Period (s) | — | NNW 2 | W 3 | WSW 3 | SSW 7 | — | — | — | SE 8 | SSE 9 | — | — | N 3 | N 4 | SSE 9 | SSE 9 | SSE 9 | S 10 | — |
| kJ | — | 1 | 5 | 5 | 99 | — | — | — | 147 | 1259 | — | — | 5 | 4 | 617 | 2069 | 860 | 826 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 3 | 3 | 1 | 16 | 152 | 0 | 0 | 113 | 152 | 0 | 28 | 1 | 0 | 770 | 105 | 12 | 64 | 0 |
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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