
Surf Forecasts:
Narrabeen-South surf forecast from 9 Aug 2026:
- Best quality surf: Thursday 13 Aug, 10AM (local time) - 7ft (2.2m), 8s period, S swell with offshore winds.
- Most powerful swell: Monday 10 Aug, 4AM (local time) - 8ft (2.5m), 7s period, NE swell with 716 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 7AM (local time) - 2.5ft (0.8m), 9s period with ENE 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 Tuesday (Aug 11) at 7AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Narrabeen-South in the next 16 days are 2.5m 7s and forecast to arrive on Monday (Aug 10) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Thursday (Aug 13) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 11th Aug) | 2.5ft (0.8m) 9s |
| Best Surf | 10AM (Thu 13th Aug) | 7ft (2.2m) 8s |
| Most Powerful | 4AM (Mon 10th Aug) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s cast an eye over the next couple of weeks for Narrabeen-South. It’s a bit of a mixed bag, with some proper windows of clean surf, but also a few days where you’ll want to find something else to do.
The week starts off pretty grim. Sunday the 9th is a write-off – small, weak swell at 3ft from the ENE with a cross-onshore breeze making it lumpy. The energy is weak at 174. Monday the 10th gets bigger, pushing to 7ft, but it’s coming with a strong cross-shore wind that’s going to chop it right up. The energy jumps to 724, but it’s all over the place. Don’t bother.
Tuesday the 11th is when things start to turn. The morning is still small and unremarkable, but the afternoon brings a glassy 3ft south swell with an 11-second period. The energy is weak at 283, but it’s clean, and that glassy surface will be a joy. It’s not big, but it’s surfable. Wednesday the 12th stays small and clean with a cross-offshore breeze and a 3ft south swell. Again, not much power, but the conditions are nice.
Now, Thursday the 13th is the standout of this stretch. The morning lights up with a 7ft south swell, and the wind is offshore. The energy is strong at 1074. This is proper size and clean, a real push of water. It says it’s for experienced surfers, and given the size, that’s spot on. The afternoon will drop off quickly to 5ft with a cross-offshore, still clean but with less energy. Friday the 14th morning continues with a 5ft south swell, a little less energy at 586, but still clean with a cross-offshore breeze. That’s another good session.
The weekend goes downhill. Saturday the 15th sees the south swell drop in period to 6-7 seconds, and it’s messy with a moderate cross-offshore wind. Sunday the 16th is a write-off with a tiny 1ft long-period south swell mixing with wind – that’s a no-go. The start of the new week on Monday the 17th is also poor with a cross-onshore wind and inconsistent, weak swell. There’s a bit of a gap here for a few days.
The next real window opens on Tuesday the 18th. The morning is clean with a 4ft SE swell at a better 10-second period. The energy is moderate at 426. It’s not huge, but it’s clean. Wednesday the 19th morning also looks nice – a cross-offshore wind, 5ft ESE swell, and a 10-second period, with 488 energy. Those two mornings are your best bet for the second week.
After that, it goes flat and messy again. The middle of the week is a mix of onshore winds and weak, short-period swells from the ENE. The energy stays low, and the conditions are just average. There might be a little bump on Saturday the 22nd morning – a 7ft NE swell, but the period is short at 7 seconds and it’s crossed up. Sunday the 23rd morning is glassy again with a 4ft ENE swell, which is clean but small.
So, to sum it up: the clear standout is Thursday the 13th morning. Big, clean south swell with offshore wind, and that strong energy reading of 1074. The next best window is the Tuesday and Wednesday mornings of the 18th and 19th, which are clean but more modest in size and energy. The water temp is 63° with a -2° anomaly, so it’s just about normal for this time of year. Keep an eye on that Thursday, it should be a cracker.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun night. Very mild (max 19°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the NW on Mon afternoon, calm by Tue morning). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Very mild (max 19°C on Wed morning, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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) | ENE 9 | ENE 9 | NE 6 | ENE 9 | NE 9 | NE 9 | ENE 9 | S 11 | S 11 | S 10 | S 9 | ENE 9 | S 8 | S 8 | S 8 | S 8 | S 7 | SSE 7 | S 6 | S 7 | S 7 |
Wave Graph | |||||||||||||||||||||
156 | 146 | 388 | 676 | 456 | 173 | 106 | 209 | 233 | 164 | 108 | 68 | 628 | 411 | 198 | 328 | 186 | 135 | 161 | 439 | 134 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross | cross | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:10PM1.59m | 6:04AM1.04m | 6:08PM1.68m | 7:00AM1.11m | 7:01PM1.75m | 7:49AM1.18m | 7:50PM1.77m | 8:35AM1.25m | 8:36PM1.74m | 9:18AM1.30m | 9:20PM1.65m | 10:00AM1.34m | 10:03PM1.52m | ||||||||
Low Tide | 10:25AM0.38m | 00:08AM0.15m | 11:30AM0.34m | 1:02AM0.06m | 12:29PM0.28m | 1:50AM-0.00m | 1:22PM0.23m | 2:33AM-0.03m | 2:13PM0.20m | 3:14AM-0.02m | 3:02PM0.20m | 3:52AM0.03m | 3:51PM0.23m | ||||||||
6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | |
— | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | |
mm | — | 2 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | 8 |
Temp °C | 17 | 18 | 16 | 16 | 15 | 14 | 18 | 19 | 12 | 19 | 19 | 13 | 16 | 15 | 14 | 16 | 16 | 16 | 15 | 15 | 15 |
Feels °C | 13 | 14 | 11 | 7 | 7 | 6 | 16 | 17 | 9 | 15 | 16 | 9 | 12 | 10 | 11 | 13 | 13 | 14 | 10 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | E 14 | ENE 9 | NE 9 | NE 9 | SSW 7 | S 11 | S 11 | S 10 | S 9 | ENE 9 | S 8 | S 8 | S 8 | S 8 | S 7 | SSE 7 | ENE 10 | ENE 10 | ESE 6 |
156 | 146 | 15 | 676 | 456 | 173 | 51 | 209 | 233 | 164 | 108 | 68 | 391 | 411 | 198 | 223 | 186 | 135 | 18 | 18 | 21 | |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | SE 8 | S 13 | S 13 | N 6 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 14 | S 18 | ENE 10 |
6 | 3 | 3 | 3 | 3 | 1 | 106 | 71 | 68 | 64 | 76 | 49 | 50 | 49 | 29 | 31 | 31 | 17 | 4 | 26 | 19 | |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SSE 8 | S 13 | — | — | E 13 | S 12 | S 12 | N 4 | — | — | S 13 | S 16 | S 16 | S 18 | S 15 | S 19 | S 15 | SE 8 | — | S 18 |
7 | 6 | 3 | — | — | 3 | 3 | 3 | 1 | — | — | 3 | 5 | 5 | 6 | 4 | 28 | 17 | 2 | — | 56 | |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 4 | NE 6 | NNW 4 | NW 5 | W 4 | WNW 4 | — | W 3 | NW 3 | NNW 3 | SW 4 | S 8 | — | — | S 8 | — | — | S 6 | S 7 | S 7 |
5 | 6 | 388 | 45 | 62 | 36 | 6 | — | 6 | 2 | 3 | 25 | 628 | — | — | 328 | — | — | 161 | 439 | 134 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 511 | 113 | 171 | 205 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 8 | 0 | 0 | 4 | 0 | 55 | 55 | 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.











