Surf Forecasts:
Narrabeen-South surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7AM (local time) - 10ft (3.0m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 1AM (local time) - 8ft (2.5m), 12s period, S swell with 2,035 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 4AM (local time) - 1.5ft (0.4m), 10s period with SSE 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 Friday (Sep 04) at 4AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.5m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Narrabeen-South in the next 16 days are 2.5m 12s and forecast to arrive on Friday (Sep 11) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Friday (Sep 04) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 4th Sep) | 1.5ft (0.4m) 10s |
| Best Surf | 7AM (Thu 10th Sep) | 10ft (3.0m) 10s |
| Most Powerful | 1AM (Fri 11th Sep) | 8ft (2.5m) 12s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a bit of a mixed bag coming up at Narrabeen-South over the next couple of weeks. The week starts off with some small, clean waves, but the real story is a massive pulse of swell that arrives about a week out from now. It’s going to be a waiting game, but there are some genuine standouts if you’re keen.
The first decent window opens up on Friday morning, 4th September. We’ve got a clean 5 ft south swell, with a light 5 mph offshore breeze from the WNW. The combined energy is moderate (537), and with that cross-off wind, it’s going to be a fun, clean session. The water temp is about average for this time of year, so no surprises there.
Saturday and Sunday mornings are still worth a look. Sunday morning, 6th September, sees a 4 ft SSW swell with a strong 25 mph offshore wind from the WSW. The energy is solid (250), and it’s clean, so it’s a good option for the weekend. Monday morning, 7th September, is a real treat – glassy conditions with a light 4 ft south swell. The combined energy is 227, and it’s going to be smooth as silk. This is a great pick for a quiet session.
Now, the big one. On Thursday, 10th September, we get a massive 10 ft south swell rolling in. The combined energy is huge (2426), but it’s too big for this break. The wind is cross-off, so it’s clean, but only for the experts. The swell is going to be pushing hard, and the period is 11 seconds, so it’s a solid groundswell. This is for the brave only.
The weekend after that, Saturday morning, 12th September, has a nice 5 ft SSE swell with a light 10 mph offshore from the SW. The energy is moderate (572), and it’s very clean. This is a solid, consistent option for a good surf.
The real standout for the whole period, though, is Wednesday morning, 16th September. The morning has a 3 ft south swell with a light 15 mph offshore wind, clean and fun. But the afternoon is the star – glassy conditions, a 4 ft south swell, and a 11-second period. The combined energy is 360, and it’s going to be perfect. That afternoon session is the one to circle.
The last few days of the outlook get messy. From the 17th, we get strong southerly winds ramping up, with heavy rain and near gale-force gusts. The swell is still there, but the wind is just too strong for a good paddle. It’s going to be a write-off.
So, the best on offer: Monday morning, 7th September, for that glassy, clean fun, and Wednesday afternoon, 16th September, for the absolute peak of the calm, clean conditions. The big swell on the 10th is for the experts only.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sat afternoon, min 13°C on Thu night). Winds increasing (light winds from the WNW on Fri morning, fresh winds from the NW by Sat afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Mon night. Very mild (max 19°C on Mon morning, min 12°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the S by Wed afternoon). | ||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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) | SSE 10 | S 11 | S 8 | S 11 | S 9 | S 9 | NE 6 | SSW 7 | S 9 | S 10 | S 8 | S 8 | SSE 9 | SSE 8 | SSE 8 | S 8 | S 8 | SSE 8 | SSE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 33 | 498 | 112 | 89 | 85 | 60 | 46 | 134 | 269 | 610 | 217 | 169 | 417 | 560 | 459 | 110 | 132 | 345 | 888 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | on | cross | cross-on | cross | cross-off | off | cross-off | off | glassy | on | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off |
High Tide | 00:54AM1.02m | 1:26PM1.41m | 2:17AM0.95m | 2:40PM1.43m | 3:45AM0.95m | 3:54PM1.48m | 4:59AM1.01m | 5:00PM1.55m | 5:57AM1.10m | 5:56PM1.61m | 6:45AM1.20m | 6:46PM1.64m | |||||||
Low Tide | 6:39AM0.40m | 8:24PM0.36m | 7:48AM0.46m | 9:47PM0.31m | 9:08AM0.47m | 10:57PM0.23m | 10:24AM0.42m | 11:54PM0.15m | 11:28AM0.35m | 00:41AM0.08m | 12:24PM0.28m | 1:23AM0.04m | |||||||
 |  | |  | | | | | | | | |  |  | | | | |  | |
 | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 4 |
Temp °C | 17 | 19 | 17 | 16 | 29 | 30 | 22 | 20 | 18 | 16 | 19 | 17 | 16 | 16 | 16 | 15 | 18 | 16 | 15 |
Feels °C | 12 | 16 | 13 | 14 | 24 | 25 | 18 | 16 | 14 | 15 | 17 | 14 | 13 | 12 | 14 | 13 | 13 | 10 | 7 |
Swell 1 Height (m) Direction Period (s) | NE 7 | S 11 | S 8 | S 7 | S 9 | NE 5 | NE 6 | SSW 7 | S 9 | S 10 | S 8 | S 8 | ENE 10 | E 10 | SSE 8 | S 8 | S 8 | ENE 9 | S 16 |
| kJ | 25 | 498 | 112 | 51 | 85 | 49 | 46 | 79 | 153 | 610 | 217 | 169 | 10 | 9 | 459 | 110 | 132 | 8 | 20 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | NE 8 | ENE 10 | NE 5 | ENE 9 | S 9 | S 9 | NE 7 | NE 6 | NE 6 | E 10 | SE 11 | N 7 | NE 9 | ENE 10 | SE 8 | SE 7 | E 17 | ENE 9 |
| kJ | 33 | 20 | 18 | 19 | 17 | 60 | 43 | 28 | 14 | 6 | 8 | 31 | 1 | 3 | 9 | 93 | 43 | 6 | 8 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 10 | S 18 | S 11 | S 16 | E 9 | E 11 | E 11 | E 10 | E 10 | NE 7 | E 10 | NE 8 | — | N 9 | E 10 | SE 10 | S 17 | E 16 |
| kJ | 17 | 19 | 26 | 89 | 19 | 7 | 9 | 9 | 9 | 8 | 2 | 8 | 3 | — | 2 | 8 | 15 | 6 | 5 |
Wind waves Height (m) Direction Period (s) | SW 5 | — | ENE 8 | — | NNE 3 | WNW 3 | SW 3 | SSW 7 | S 9 | — | — | ENE 3 | SSE 9 | SSE 8 | — | — | — | SSE 8 | SSE 9 |
| kJ | 37 | — | 39 | — | 10 | 4 | 2 | 134 | 269 | — | — | 3 | 417 | 560 | — | — | — | 345 | 888 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 54 | 2 | 15 | 1 | 3 | 0 | 607 | 0 | 0 | 160 | 55 | 112 | 4 | 1 | 0 | 121 | 249 |
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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