Surf Forecasts:
Manly surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 27 Aug, 1AM (local time) - 4.5ft (1.4m), 9s period, S swell with offshore winds.
- Most powerful swell: Thursday 27 Aug, 10AM (local time) - 6ft (1.9m), 11s period, S swell with 875 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 2.5ft (0.7m), 11s period with S swell.
Best Forecast Surf Conditions for Manly this week:
The surf forecast for Manly over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 4AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.5m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Manly in the next 16 days are 1.9m 11s and forecast to arrive on Thursday (Aug 27) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Aug 26) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 2.5ft (0.7m) 11s |
| Best Surf | 1AM (Thu 27th Aug) | 4.5ft (1.4m) 9s |
| Most Powerful | 10AM (Thu 27th Aug) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Manly over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a good, hard look at what Manly’s got cooking for us over the next couple of weeks.
Right off the bat, it’s a quiet start. Friday the 21st and Saturday the 22nd of August are basically a write-off for any decent paddle. Tiny, weak slop with onshore or no wind, and the combined energy is struggling to get past 54 (weak). You’re better off doing something else.
Sunday the 23rd of August morning is where we finally see a flicker of life. The combined energy jumps to 262 (moderate), with a 4ft south swell at 10 seconds. The wind goes glassy—a dead calm—so it’ll look clean. But that swell is pretty straight, and the scores are marginal. It’s surfable, but don’t expect a classic.
The real standout in this whole 16-day window is Thursday, the 27th of August – morning session at Manly. This is the day. We’ve got a solid 6ft south swell rolling in, with a period of 11 seconds, giving the combined energy a thumping 931 (strong). The wind is a gentle offshore from the southwest, meaning clean, lined-up waves. The optimum swell direction for Manly is SE, and this is a south swell, so it’s a good match, wrapping into the point nicely. This is the best on offer, no question. It’s still manageable for intermediate surfers, but it’s pushing the size for beginners.
Looking further ahead, the week of the 28th onwards gets messy. Friday the 28th has some clean moments with a 4ft swell and offshore wind, but the energy is dialed back. Then Saturday the 29th and Sunday the 30th are blown out by strong southerly winds, with the 30th seeing a massive 10ft cross-shore mess (combined energy 1152). That’s expert-only territory, and with the wind, it’ll be a washing machine. Probably better kite surfing that day.
A few pockets of clean conditions pop up on the 1st and 2nd of September, with 4ft and 3ft swells and an offshore breeze, but they are ordinary and lack punch. The water temperature is about average for this time of year.
So, bottom line: the first week is a slow grind, but Thursday morning, the 27th of August is your golden ticket. Set the alarm.
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 13°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Tue night. Warm (max 23°C on Tue morning, min 14°C on Sun night). Winds decreasing (fresh winds from the NNE on Mon afternoon, calm by Wed morning). | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | ENE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | SSW 8 | NE 6 | S 10 | S 13 | S 10 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | NE 7 | ENE 8 | S 8 | S 9 |
Wave Graph | |||||||||||||||||||
97 | 51 | 39 | 14 | 9 | 22 | 9 | 220 | 127 | 237 | 121 | 116 | 92 | 93 | 64 | 139 | 179 | 165 | 339 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | cross-off | cross-off | cross-off | glassy | glassy | on | cross-on | cross-on | on | cross | cross-on | cross | cross-on | cross-off | off | off |
High Tide | 2:24AM0.86m | 2:55PM1.25m | 3:46AM0.84m | 4:00PM1.27m | 4:56AM0.87m | 4:57PM1.32m | 5:49AM0.92m | 5:45PM1.39m | 6:30AM0.99m | 6:27PM1.45m | 7:07AM1.06m | 7:05PM1.51m | |||||||
Low Tide | 7:52AM0.53m | 10:06PM0.48m | 9:01AM0.55m | 11:10PM0.43m | 10:09AM0.53m | 11:58PM0.37m | 11:07AM0.49m | 00:38AM0.30m | 11:56AM0.43m | 1:12AM0.23m | 12:39PM0.37m | 1:44AM0.17m | |||||||
— | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 7 | 1 | 3 | — |
Temp °C | 19 | 21 | 20 | 16 | 20 | 19 | 16 | 15 | 16 | 16 | 19 | 18 | 17 | 23 | 20 | 16 | 21 | 16 | 14 |
Feels °C | 16 | 20 | 18 | 13 | 16 | 15 | 15 | 13 | 13 | 13 | 15 | 14 | 15 | 19 | 19 | 15 | 20 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | SSW 8 | NE 6 | S 10 | S 8 | S 10 | ENE 6 | ENE 7 | ENE 6 | NE 6 | ENE 6 | NE 7 | ENE 8 | S 8 | S 9 |
97 | 51 | 39 | 14 | 9 | 22 | 9 | 220 | 104 | 237 | 57 | 96 | 65 | 54 | 64 | 139 | 179 | 165 | 339 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | SE 7 | N 4 | SSW 5 | NE 6 | ESE 3 | E 4 | S 13 | E 14 | S 10 | S 10 | S 10 | S 9 | ENE 9 | ENE 9 | S 11 | ENE 8 | ENE 8 |
3 | 2 | 2 | 2 | 5 | 9 | 2 | 5 | 127 | 4 | 121 | 116 | 92 | 61 | 47 | 49 | 9 | 143 | 86 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | S 10 | S 9 | E 9 | S 4 | NE 6 | E 14 | E 14 | S 17 | S 17 | NE 9 | ENE 9 | S 9 | S 9 | S 16 | S 15 | — |
— | — | 2 | 2 | 6 | 2 | 3 | 10 | 4 | 4 | 22 | 22 | 20 | 33 | 42 | 15 | 20 | 4 | — | |
Wind waves Height (m) Direction Period (s) | — | NW 2 | N 3 | W 3 | WNW 2 | — | — | ENE 6 | ENE 4 | NE 4 | — | — | — | NE 6 | NNW 3 | NNW 4 | WSW 4 | — | — |
— | 1 | 1 | 1 | 1 | — | — | 27 | 14 | 27 | — | — | — | 93 | 9 | 13 | 28 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 1 | 11 | 224 | 270 | 393 | 38 | 0 | 28 | 3 | 3 | 168 | 2 | 2 | 1 | 15 | 0 | 0 | 0 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Manly Surf forecast
The above surf forecast table for Manly provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Manly can be found by selecting the local surf guide option on the grey menu. Our Manly 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) 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 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 is 6 km (4 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.










