
Surf Forecasts:
Narrabeen-South surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 1AM (local time) - 11ft (3.5m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 4PM (local time) - 13ft (4.0m), 10s period, S swell with 3,200 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 7AM (local time) - 3.5ft (1.0m), 7s period with NE 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 (Sep 15) at 7AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.4m and 10s. 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 4.0m 10s and forecast to arrive on Wednesday (Sep 16) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Monday (Sep 14) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 15th Sep) | 3.5ft (1.0m) 7s |
| Best Surf | 1AM (Wed 16th Sep) | 11ft (3.5m) 8s |
| Most Powerful | 4PM (Wed 16th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G’day, I’m Rusty, and let’s have a proper look at what’s coming up for Narrabeen-South. This spot’s an exposed beachie that loves a south swell, and it’s got a solid run of consistency, but you’re gonna need to pick your moments. Water temp is sitting at 63°, which is pretty much normal for this time of year, nothing wild there.
Alright, straight up, the first few days are a bit of a write-off. Sunday the 13th and Monday the 14th are pretty grim – small surf around 2ft to 3ft, but onshore or cross-on winds are chopping it up, and the combined energy is weak to moderate (280 and 196). Not worth paddling out.
Tuesday the 15th morning shows a glimmer – 3ft from the NE with a short 7-second period, light cross-off breeze and clean conditions, but the energy’s low (110). It’s surfable but ordinary, only a so-so window. Afternoon goes downhill.
Now, Wednesday the 16th morning is a massive standout – but only for the experienced crew. We’re looking at a solid 10ft south swell, 9-second period, with a fresh SSW offshore wind making it clean. The combined energy is cranking at 1617 – that’s strong. However, this is way too big for beginners, and even for most, it’s gonna be a handful. The afternoon pushes up to 13ft with even more energy (3200), still clean but again, expert territory only. Thursday the 17th keeps that big swell going – 10ft both morning and afternoon, clean with offshore winds, energy still massive (1955 to 2777). If you’re an experienced surfer and you love a challenge, this stretch from Wednesday the 16th through Thursday the 17th is the best on offer. Just know it’s heavy and not for the faint-hearted.
Friday the 18th drops right off – 6ft but cross-on and bumpy, not worth it. Saturday the 19th morning has a tiny 3ft south swell with a decent 11-second period and light cross-off wind, energy moderate (306) – clean but small. Afternoon goes flat and choppy. Sunday the 20th is flat.
Monday the 21st morning sees another big pulse – 10ft south swell, 10-second period, clean with light cross-off, energy strong (1694). Again, this is big and only for experts. Afternoon drops to 6ft but gets onshore and messy.
Tuesday the 22nd morning is a nice little window – 4ft south swell, light offshore from the west, clean, with moderate energy (213). It’s small but workable. Wednesday the 23rd is tiny and weak.
Thursday the 24th morning shapes up nicely – 3ft south swell, 11-second period, with a moderate SSW offshore wind keeping it clean. Energy is moderate (388). This is a solid, surfable option for a range of abilities. Afternoon gets rain and bigger but messy.
Friday the 25th is average at best – rain showers, messy, not calling me out.
Saturday the 26th morning is a beauty – 6ft from the NE, 9-second period, and glassy conditions with barely a breath of wind. Energy is moderate (440). That’s clean, fun, and workable for intermediates and above. Afternoon gets onshore and blown out.
Sunday the 27th is poor – small and onshore.
Monday the 28th morning is another standout for experienced surfers – 8ft south swell, 11-second period, light cross-off breeze, clean. Energy is strong (1508). That’s a solid, powerful swell with clean conditions – but again, it’s big, so only for those with skills. Afternoon drops to 7ft but gets rain and a stronger cross-off.
So, if I’m picking the best of the bunch: Wednesday the 16th through Thursday the 17th for the big, clean, powerful south swell – but that’s for experts only. For the everyday surfer, Saturday the 26th morning with glassy 6ft NE swell is a real treat, and Thursday the 24th morning with 3ft clean offshore conditions is also a solid call. Crowds at Narrabeen-South can be often, so expect company on those good windows.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon morning, min 10°C on Tue night). Winds increasing (light winds from the NNW on Sun night, fresh winds from the S by Tue night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 10°C on Wed night). Winds decreasing (strong winds from the SSW on Wed morning, light winds from the N by Fri night). | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 11 | S 11 | S 12 | S 11 | S 11 | NE 6 | NE 7 | ENE 7 | S 8 | S 9 | S 10 | S 10 | S 10 | S 10 | SSE 9 | SSE 8 | S 9 | S 9 | SE 11 | S 17 | S 9 |
Wave Graph | |||||||||||||||||||||
181 | 181 | 175 | 123 | 81 | 172 | 75 | 57 | 1543 | 1595 | 3200 | 3050 | 1945 | 1527 | 586 | 398 | 257 | 185 | 134 | 142 | 38 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross-on | on | cross-on | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-on | on | cross-off | cross-off | cross-on | cross-off |
High Tide | 9:36PM1.36m | 9:58AM1.46m | 10:16PM1.23m | 10:35AM1.43m | 10:58PM1.10m | 11:15AM1.38m | 11:44PM0.99m | 12:01PM1.32m | 00:40AM0.91m | 12:57PM1.26m | 1:54AM0.86m | 2:05PM1.23m | 3:19AM0.86m | ||||||||
Low Tide | 3:32PM0.19m | 3:41AM0.20m | 4:17PM0.24m | 4:12AM0.29m | 5:04PM0.30m | 4:45AM0.38m | 5:54PM0.38m | 5:21AM0.46m | 6:54PM0.44m | 6:05AM0.54m | 8:06PM0.49m | 7:06AM0.59m | 9:23PM0.48m | ||||||||
5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:48 | — | — | |
— | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 23 | 23 | 22 | 20 | 17 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 17 | 17 | 16 | 26 | 23 | 20 |
Feels °C | 15 | 14 | 14 | 21 | 20 | 19 | 18 | 15 | 5 | 3 | 5 | 5 | 8 | 9 | 10 | 13 | 12 | 15 | 22 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | NE 6 | NE 6 | S 11 | NE 6 | NE 7 | ENE 7 | NE 7 | NE 7 | — | NE 13 | E 13 | S 10 | SSE 9 | SSE 8 | S 9 | S 9 | SE 11 | S 9 | S 9 |
181 | 181 | 145 | 56 | 81 | 101 | 75 | 57 | 12 | 2 | — | 7 | 3 | 1240 | 586 | 398 | 257 | 159 | 134 | 78 | 38 | |
Swell 2 Height (m) Direction Period (s) | NE 5 | ENE 13 | S 12 | S 11 | ENE 13 | S 10 | S 10 | S 4 | ENE 13 | ENE 14 | — | — | NE 13 | S 19 | E 13 | E 12 | ESE 8 | ESE 10 | S 9 | SE 9 | NE 4 |
20 | 17 | 175 | 123 | 16 | 48 | 29 | 5 | 18 | 20 | — | — | 7 | 7 | 3 | 3 | 98 | 185 | 102 | 62 | 10 | |
Swell 3 Height (m) Direction Period (s) | S 17 | ENE 13 | ENE 13 | ENE 13 | — | ENE 12 | NE 13 | S 9 | — | — | — | — | — | E 13 | — | S 18 | SE 10 | S 17 | S 15 | S 17 | SE 9 |
49 | 17 | 17 | 17 | — | 15 | 6 | 14 | — | — | — | — | — | 3 | — | 6 | 26 | 140 | 70 | 142 | 37 | |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 5 | NNE 6 | — | NE 6 | NE 6 | SW 3 | SSE 4 | S 8 | S 9 | S 10 | S 10 | S 10 | S 10 | — | — | — | — | W 3 | ENE 3 | — |
30 | 56 | 229 | — | 49 | 172 | 4 | 15 | 1543 | 1595 | 3200 | 3050 | 1945 | 1527 | — | — | — | — | 1 | 3 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 176 | 1 | 1 | 21 | 1 | 0 | 30 | 80 | 835 | 732 | 193 | 113 | 56 | 0 | 1 | 20 | 0 | 0 | 20 | 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.










