Surf Forecasts:
Manly surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 1AM (local time) - 4.5ft (1.3m), 6s period, ENE swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 10PM (local time) - 5ft (1.6m), 6s period, NE swell with 200 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 1AM (local time) - 4.5ft (1.3m), 6s period with ENE 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 Friday (Aug 21) at 1AM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Manly in the next 16 days are 1.6m 6s and forecast to arrive on Thursday (Aug 20) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Aug 26) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 21st Aug) | 4.5ft (1.3m) 6s |
| Best Surf | 1AM (Fri 21st Aug) | 4.5ft (1.3m) 6s |
| Most Powerful | 10PM (Thu 20th Aug) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Manly over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin' for Manly over the next couple of weeks.
Honestly, it’s a tough stretch ahead. We’re looking at a real dry spell for the first week and a half, with hardly any proper surf on offer. The wind and swell just aren't lining up. From today (Thursday, August 20th) all the way through to the end of the month, it's a long, frustrating run of weak, choppy, or onshore conditions. You’ll see a few days with surfable, but very ordinary, waves, but nothing to get excited about. The pattern is pretty locked in – small, short-period windswell and less-than-ideal wind.
The first real glimmer of hope pops up on Wednesday, September 2nd, in the morning. Manly’s point break might just wake up. We’re looking at a clean 5ft swell from the ENE, with a period of 11 seconds – that’s a proper groundswell, bringing some energy and shape. The wind is a clean, cross-offshore breeze from the west, which will groom the face nicely. The combined energy is solid, clocking in at 549 (moderate wave energy). This is the standout of the entire forecast. The swell direction is a touch off the optimum SE for the point, but with that clean wind and decent size, it’s the one to circle on the calendar.
The next morning, Thursday the 3rd, is still worth a look. It's 5ft from the ENE with that same 11-second period, and the energy is still high at 527 (moderate wave energy). The wind is a light cross-shore from the NW, so it’ll be a touch bumpy compared to the day before, but still very surfable. After that, we fade back into the ordinary stuff by Friday.
So, there you have it. A lot of waiting, but a couple of potential windows. Keep an eye on Wednesday the 2nd – that’s the one.
- Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Thu morning, min 12°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Tue night. Warm (max 20°C on Mon morning, min 13°C on Sun night). Winds increasing (calm on Mon night, strong winds from the S by Tue night). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
AM | PM | 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) | NE 6 | NE 6 | ENE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | NE 6 | NE 6 | S 10 | S 14 | S 10 | S 10 | S 10 | S 10 | S 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 75 | 126 | 51 | 38 | 14 | 9 | 12 | 9 | 154 | 138 | 198 | 125 | 138 | 94 | 61 | 103 | 99 | 82 | 82 | 78 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross | cross | cross-off | cross-off | cross | off | off | on | cross-on | cross | on | cross-off | glassy | cross | off | off | cross-off | cross-off |
High Tide | 1:51PM1.26m | 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 | 8:49PM0.50m | 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 | ||||||||
 |  |  | | | |  | |  | | | | | | |  | |  | | | | |
 | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — |
 | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 25 | 5 | — | — |
Temp °C | 20 | 20 | 19 | 20 | 20 | 17 | 19 | 17 | 16 | 16 | 16 | 16 | 20 | 18 | 18 | 15 | 18 | 14 | 14 | 16 | 15 |
Feels °C | 16 | 17 | 16 | 18 | 16 | 14 | 17 | 14 | 15 | 14 | 13 | 14 | 17 | 15 | 16 | 14 | 16 | 6 | 7 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | SE 7 | ENE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | NE 6 | NE 6 | S 10 | S 8 | S 10 | ENE 6 | S 10 | ENE 6 | ENE 6 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 40 | 23 | 126 | 51 | 38 | 14 | 9 | 9 | 9 | 154 | 127 | 198 | 68 | 138 | 55 | 31 | 103 | 99 | 82 | 82 | 78 |
Swell 2 Height (m) Direction Period (s) | ESE 6 | E 10 | S 12 | S 11 | SE 7 | S 10 | SSW 6 | SSW 5 | S 8 | SSE 4 | S 14 | ENE 9 | S 10 | S 16 | S 10 | S 9 | S 9 | S 16 | S 10 | S 9 | S 6 |
| kJ | 37 | 2 | 3 | 2 | 2 | 2 | 6 | 5 | 1 | 10 | 138 | 7 | 125 | 21 | 94 | 61 | 57 | 20 | 17 | 7 | 33 |
Swell 3 Height (m) Direction Period (s) | E 11 | — | — | — | S 11 | SE 8 | S 9 | S 8 | S 12 | NE 6 | E 14 | E 14 | S 16 | E 13 | ENE 9 | ENE 9 | S 16 | — | S 16 | S 15 | SE 6 |
| kJ | 2 | — | — | — | 2 | 2 | 2 | 12 | 3 | 10 | 4 | 4 | 21 | 3 | 8 | 32 | 20 | — | 20 | 18 | 28 |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | — | NW 2 | WNW 3 | NW 3 | — | — | SSW 5 | — | ENE 9 | NE 5 | NW 4 | ENE 6 | WSW 2 | — | S 3 | S 4 | SSE 5 | SSE 6 | — |
| kJ | 60 | 75 | — | 1 | 2 | 5 | — | — | 7 | — | 30 | 57 | 3 | 82 | 1 | — | 1 | 40 | 46 | 53 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 48 | 0 | 1 | 38 | 224 | 270 | 401 | 65 | 0 | 28 | 3 | 3 | 117 | 0 | 0 | 1 | 178 | 213 | 207 | 12 |
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.
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