Surf Forecasts:
Narrabeen-South surf forecast from 22 Aug 2026:
- Best quality surf: Sunday 23 Aug, 7AM (local time) - 4.5ft (1.3m), 11s period, S swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 7AM (local time) - 4.5ft (1.3m), 11s period, S swell with 372 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 2.5ft (0.8m), 11s period with S swell.
Best Forecast Surf Conditions for Narrabeen-South this week:
The surf forecast for Narrabeen-South 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 0.8m and 11s period with a secondary swell of 0.6m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Narrabeen-South in the next 16 days are 1.3m 11s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Thursday (Aug 27) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 2.5ft (0.8m) 11s |
| Best Surf | 7AM (Sun 23rd Aug) | 4.5ft (1.3m) 11s |
| Most Powerful | 7AM (Sun 23rd Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let’s size up what’s cooking at Narrabeen-South for the next couple of weeks. It’s a slow start, but there are a few windows worth paddling out for.
The first few days are flat out. Saturday the 22nd has tiny 0.4m waves and almost no energy (17)—don’t bother. But Sunday the 23rd, we get a pulse. The morning brings a clean 1.3m south swell with glassy conditions and light offshore wind. That’s the kind of start that gets you out of bed. Energy is moderate (338). By afternoon the onshore wind ruins it, so hit it early.
Monday the 24th and Tuesday the 25th are small and messy, with cross-shore winds and waves around 0.9m to 1.1m. Nothing to write home about. Wednesday the 26th has a clean morning window with 1.2m waves, but it’s only marginal.
The real standout for the first week is Thursday morning, August 27th. A clean 1.4m south swell, 7-second period, and offshore wind from the south-southwest (427 energy). That’s the best we’ve seen—shapely, punchy, and clean. Crowds are often here, so expect company.
After that, Friday the 28th and Saturday the 29th drop back to small 0.9m waves and light winds—surfable but ordinary. Then Sunday the 30th morning gives another good look: a clean 1.1m south swell with light offshore breeze (332 energy). Not big, but glassy and fun.
The second week starts quietly. Monday the 31st has a tiny 0.5m, very long 16-second south swell that’s mostly blown out. That long period will make it straight and weird at the beach. Tuesday September 1st and Wednesday September 2nd are small, with 0.7m and 0.4m waves. Thursday September 3rd has a 0.8m south swell with a 12-second period, but cross-shore wind messes it up.
Looking ahead, Friday morning, September 4th, is a promising option. A 1.0m south swell, 10-second period, clean cross-offshore wind, and moderate energy (282). It’s not huge, but conditions look solid. By Saturday the 5th, it’s fading fast with 0.4m waves and strong 30 km/h wind.
Water temperature is about 63°F, which is normal for this time of year.
Bottom line: your best shots are Thursday morning August 27th and Sunday morning August 30th. Friday September 4th is a longer-range possibility, but less certain. There are quiet stretches in between, but it’s not a total loss—just pick your moments.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sat morning, min 13°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Tue night. Warm (max 22°C on Tue morning, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 | SSW 8 | S 13 | S 9 | S 13 | S 10 | S 10 | S 10 | NE 6 | NE 6 | ENE 7 | NE 7 | NE 8 | ENE 8 | ENE 8 | S 7 | S 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 22 | 13 | 274 | 277 | 242 | 156 | 128 | 148 | 80 | 91 | 167 | 178 | 171 | 103 | 189 | 114 | 111 | 111 | 105 | 111 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | glassy | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | off | cross | cross | cross-off | on | off |
High Tide | 4:00PM1.28m | 4:56AM0.88m | 4:57PM1.33m | 5:48AM0.93m | 5:45PM1.40m | 6:30AM1.00m | 6:27PM1.46m | 7:07AM1.07m | 7:04PM1.52m | 7:42AM1.15m | 7:40PM1.55m | 8:16AM1.22m | 8:16PM1.54m | ||||||||
Low Tide | 11:09PM0.45m | 10:09AM0.54m | 11:58PM0.38m | 11:07AM0.50m | 00:37AM0.31m | 11:55AM0.44m | 1:12AM0.24m | 12:38PM0.38m | 1:44AM0.18m | 1:19PM0.32m | 2:14AM0.14m | 1:59PM0.28m | 2:44AM0.11m | ||||||||
 | |  |  |  |  | | | | |  |  |  | |  | | | | | | | |
 | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — |
 | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 2 | — | 1 | — | — | — | — | — | — |
Temp °C | 20 | 17 | 16 | 16 | 16 | 16 | 19 | 17 | 17 | 22 | 21 | 16 | 17 | 16 | 15 | 17 | 16 | 15 | 19 | 19 | 17 |
Feels °C | 16 | 13 | 15 | 13 | 12 | 13 | 16 | 13 | 15 | 20 | 19 | 13 | 14 | 11 | 11 | 14 | 14 | 14 | 18 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | NE 6 | SSW 8 | NE 6 | S 9 | S 8 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | ENE 7 | NE 7 | NE 8 | ENE 8 | ENE 8 | S 7 | S 7 | S 7 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 9 | 22 | 9 | 274 | 131 | 242 | 156 | 128 | 112 | 56 | 91 | 167 | 178 | 171 | 103 | 138 | 114 | 77 | 111 | 105 | 111 |
Swell 2 Height (m) Direction Period (s) | S 9 | NE 6 | S 6 | ENE 6 | S 13 | NE 8 | NE 5 | E 13 | S 10 | S 9 | S 9 | S 9 | S 16 | S 11 | S 10 | ENE 8 | ENE 8 | ENE 8 | SSE 7 | S 7 | S 7 |
| kJ | 6 | 9 | 2 | 14 | 277 | 18 | 26 | 3 | 71 | 42 | 41 | 13 | 42 | 9 | 8 | 100 | 111 | 111 | 55 | 49 | 45 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | S 13 | S 17 | E 14 | E 14 | NE 8 | E 13 | ENE 10 | ENE 9 | S 16 | S 16 | — | S 15 | — | — | S 10 | S 10 | S 9 | S 12 | S 18 |
| kJ | 2 | 2 | 13 | 50 | 4 | 4 | 16 | 3 | 9 | 32 | 19 | 47 | — | 4 | — | — | 8 | 16 | 15 | 25 | 7 |
Wind waves Height (m) Direction Period (s) | WSW 3 | — | SE 3 | — | NE 9 | NE 4 | NE 5 | NE 5 | NE 6 | NE 6 | — | NNW 3 | — | S 2 | S 6 | S 7 | — | — | — | — | — |
| kJ | 3 | — | 6 | — | 20 | 16 | 31 | 49 | 148 | 80 | — | 6 | — | 1 | 111 | 189 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 188 | 322 | 54 | 0 | 20 | 2 | 2 | 37 | 1 | 1 | 1 | 9 | 4 | 4 | 0 | 0 | 40 | 1 | 0 | 19 | 0 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Narrabeen-South Surf forecast
The above surf forecast table for Narrabeen-South provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Narrabeen-South can be found by selecting the local surf guide option on the grey menu. Our Narrabeen-South 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 (Narrabeen-South) 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 Narrabeen-South 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.
Narrabeen-South is 3 km (2 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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