
Surf Forecasts:
Narrabeen-South surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 10 Sep, 10PM (local time) - 7.5ft (2.3m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 7PM (local time) - 8ft (2.4m), 10s period, S swell with 1,102 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 10PM (local time) - 7.5ft (2.3m), 10s 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 Thursday (Sep 10) at 10PM. The primary swell is predicted to be 2.3m and 10s period with a secondary swell of 0.2m and 9s. 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 2.4m 10s and forecast to arrive on Thursday (Sep 10) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Sep 15) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 10th Sep) | 7.5ft (2.3m) 10s |
| Best Surf | 10PM (Thu 10th Sep) | 7.5ft (2.3m) 10s |
| Most Powerful | 7PM (Thu 10th Sep) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at what's on the menu at Narrabeen-South over the next couple of weeks. We've got a bit of a slow start, but there's some serious size and clean conditions brewing later on that'll get the heart rate up.
Alright, so straight up, the water temp is sitting at 64°F, which is pretty much dead average for this time of year, so don't expect any surprises when you get wet.
The first real call is for Thursday the 10th of September, with a solid 8ft southerly swell. The combined energy is pumping at 1080 (moderate to strong energy), and with a 9-second period, it's a shorter-period swell which will keep the sets frequent and punchy. Offshore SSW wind at 12 mph has the morning looking clean. This is for experienced surfers only at that size, so if you're not confident, give it a miss. The afternoon goes cross-off and a bit windier, so the window is the morning.
Friday the 11th is smaller but still worth a look. Morning sees 6ft from the south, with light SSW offshore wind at 6 mph. The energy has dropped to 660 (moderate), but the 10-second period gives it a bit more shape. The afternoon gets messy with a cross-shore breeze, so get out early.
Now, Saturday the 12th of September – this is a standout. The morning is glassy, with a light SW breeze at just 3 mph. The swell is 4ft from the south, but the period stretches out to 12 seconds, which is proper groundswell. Combined energy is still a solid 614 (moderate). This longer-period groundswell will produce well-shaped, powerful waves, though it might break a bit straight at a beach break – but with glassy conditions, it'll be clean as a whistle. It’s a great size for a wider range, not too big for most. Keep in mind, crowds are *often* here, so get in early.
From Sunday the 13th through to Wednesday the 16th, it goes flat and poor. Swell drops under 3ft, and onshore winds ruin any hope of decent surf. That's a solid 4-day gap of nothing to write home about.
We get a little pulse back on Wednesday the 16th morning – 6ft from the south, 9-second period, with a gentle cross-shore wind. Energy is 585 (moderate), but it's only marginal, and the afternoon is worse. Not a highlight.
Then there's another quiet stretch from Thursday 17th to Friday 18th – small, onshore, not worth paddling out.
Alright, here’s the big one. On Saturday the 19th of September, the morning is pumping a massive 12ft southerly swell with a 10-second period and an incredible combined energy of 2576 (strong). But here’s the truth – the file says it's predicted to be too big for this break. The wind is light and cross-on from the north. This is expert-only territory, and even then, it might be unruly. The afternoon is a write-off with onshore NE winds. This is one for the spectators or for the bravest only.
Sunday the 20th of September is the real standout for experienced surfers. Morning has a clean 7ft southerly swell, 11-second period, and light offshore NW wind at 9 mph. The energy is 1045 (moderate to strong). That's a powerful, clean groundswell with offshore winds – proper quality. The afternoon holds up with 7ft and a cross-off breeze. This is where the stoke is, for those who can handle it.
Monday the 21st and beyond drop back to poor conditions with small, messy waves and onshore winds. There's a tiny bump on Friday the 25th morning – 8ft from the SSW, but it's a short 7-second period, which is junky, plus it's cross-on. Then later that afternoon, the swell absolutely detonates to 16ft from the south with an insane 6281 combined energy, but again, it's way too huge for this spot.
So, bottom line: the best windows are Saturday the 12th morning for a clean, fun-sized groundswell, and Sunday the 20th morning for a bigger, more powerful session. The rest is either flat, blown out, or just too damn big.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat morning, min 12°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 25°C on Mon morning, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | S 9 | S 10 | S 10 | S 10 | S 10 | S 10 | S 12 | S 11 | S 10 | S 11 | S 11 | S 12 | S 11 | S 11 | NE 6 | S 10 | S 9 | SSE 9 | S 9 | S 9 | S 11 |
Wave Graph | |||||||||||||||||||||
963 | 1004 | 967 | 618 | 529 | 384 | 411 | 279 | 194 | 184 | 184 | 177 | 121 | 108 | 54 | 29 | 17 | 493 | 544 | 340 | 332 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross | cross-off | glassy | cross-on | cross-on | on | on | cross | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on |
High Tide | 7:32PM1.63m | 8:07AM1.37m | 8:15PM1.57m | 8:45AM1.43m | 8:56PM1.48m | 9:22AM1.46m | 9:36PM1.36m | 9:58AM1.46m | 10:16PM1.23m | 10:35AM1.43m | 10:58PM1.10m | 11:15AM1.38m | 11:44PM0.99m | ||||||||
Low Tide | 1:14PM0.21m | 2:01AM0.04m | 2:02PM0.18m | 2:36AM0.07m | 2:47PM0.17m | 3:09AM0.12m | 3:32PM0.19m | 3:41AM0.20m | 4:17PM0.24m | 4:12AM0.29m | 5:04PM0.30m | 4:45AM0.38m | 5:54PM0.38m | ||||||||
6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | |
— | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — |
Temp °C | 13 | 15 | 15 | 16 | 15 | 15 | 17 | 17 | 16 | 19 | 18 | 18 | 25 | 23 | 23 | 16 | 16 | 15 | 15 | 15 | 15 |
Feels °C | 8 | 10 | 13 | 14 | 13 | 15 | 14 | 15 | 15 | 16 | 14 | 15 | 21 | 19 | 21 | 14 | 13 | 11 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 22 | S 10 | S 10 | S 10 | S 10 | S 12 | S 11 | S 10 | S 11 | S 11 | NE 6 | S 11 | S 11 | NE 6 | NE 6 | NE 6 | ENE 6 | S 9 | S 9 | S 11 |
963 | 233 | 967 | 618 | 529 | 384 | 411 | 279 | 194 | 184 | 184 | 82 | 121 | 108 | 54 | 29 | 11 | 3 | 544 | 340 | 332 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | ESE 9 | E 15 | ENE 15 | ENE 14 | S 18 | S 19 | S 17 | S 20 | NE 4 | ENE 13 | S 12 | NE 6 | ENE 13 | S 10 | S 10 | S 9 | S 18 | S 16 | ENE 12 | ENE 13 |
25 | 17 | 4 | 21 | 18 | 27 | 184 | 140 | 119 | 4 | 17 | 177 | 24 | 16 | 48 | 29 | 15 | 24 | 21 | 15 | 17 | |
Swell 3 Height (m) Direction Period (s) | S 23 | E 9 | E 10 | ENE 15 | E 10 | ENE 13 | ENE 14 | ENE 14 | ENE 13 | S 16 | ENE 13 | ENE 13 | ENE 13 | — | ENE 12 | ENE 13 | ENE 13 | ENE 13 | ENE 14 | NE 5 | NE 7 |
92 | 2 | 2 | 21 | 2 | 18 | 19 | 19 | 16 | 48 | 17 | 17 | 17 | — | 15 | 16 | 17 | 18 | 20 | 1 | 2 | |
Wind waves Height (m) Direction Period (s) | — | S 10 | — | — | — | — | — | ENE 3 | NE 4 | NE 4 | NE 4 | NNE 6 | — | NE 4 | WNW 2 | SSW 3 | SSE 5 | SSE 9 | — | — | — |
— | 1004 | — | — | — | — | — | 3 | 9 | 6 | 29 | 145 | — | 45 | 1 | 3 | 69 | 493 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 56 | 0 | 0 | 4 | 0 | 0 | 20 | 2 | 2 | 187 | 1 | 2 | 37 | 0 | 113 | 193 | 55 | 4 | 20 | 2 |
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.










