
Surf Forecasts:
Narrabeen-South surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 13 Aug, 1PM (local time) - 11ft (3.5m), 11s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 1PM (local time) - 11ft (3.5m), 11s period, SSW swell with 3,509 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 7AM (local time) - 2ft (0.6m), 9s 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 Friday (Aug 07) at 7AM. The primary swell is predicted to be 0.6m and 9s 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 3.5m 11s and forecast to arrive on Thursday (Aug 13) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Thursday (Aug 13) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 7th Aug) | 2ft (0.6m) 9s |
| Best Surf | 1PM (Thu 13th Aug) | 11ft (3.5m) 11s |
| Most Powerful | 1PM (Thu 13th Aug) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
Alright mates, Rusty here. Let’s break down what’s cookin’ at Narrabeen-South over the next couple of weeks.
First thing’s first – the first week is a real bummer. Starting Friday the 7th through Sunday the 9th, we’ve got nothing but tiny, weak waves. Swell heights are between 2ft and 3ft, but the wind is a mess, mostly onshore or cross-on, making it choppy and ugly. The energy is pathetic – numbers like 92 and 75 (weak). Don’t bother.
This flat spell hangs in there through Monday the 10th and Tuesday the 11th. Still tiny waves, under 3ft. The wind does turn clean offshore from the WNW, but there’s just no swell to work with. Monday morning shows a bit of a bump in energy to 417 (moderate), but the swell is a short-period 3-second ENE thing at 5ft. It’s just not gonna hold together.
Now, Tuesday afternoon the 11th finally gives us a glimmer. A new SSW swell comes in at 3ft, but with a long 11-second period (groundswell). The energy is 257 (moderate), and the wind is a clean offshore from the W. It’s small, but it’s the first decent sign. Wednesday the 12th is a washout again with rain and onshore wind.
Here’s the big one. Thursday the 13th of August. This is your day. The morning shows a solid 8ft SSW swell with a 10-second period, and the wind is screaming offshore from the SW at 30 km/h. The energy is a massive 1227 (strong). That’s a proper pulse. 8ft is expert territory, so you better know what you’re doing. The afternoon gets even bigger – 10ft from the south with an 11-second period and an energy reading of 1927 (very strong). The wind swings to the south at 20 km/h, but it’s still cross-off, keeping it clean. This is the standout, no doubt about it.
Friday the 14th is still solid. The morning has a 7ft S swell with offshore WSW wind and energy at 1016 (strong) – excellent for the experienced crew. The afternoon drops to 6ft, still clean.
Then it’s back to the doldrums. From Saturday the 15th all the way through to Saturday the 22nd, it’s small and weak again. You’ll see a spike on the 22nd morning with an 8ft south swell, but it’s onshore and messy. Not worth the paddle.
Bottom line: there’s a long, dry spell until the real action hits on Thursday the 13th of August. That’s the one to circle on the calendar. The rest of the time, you’re better off doing something else.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sun morning, min 8°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the NNE by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed morning. Very mild (max 18°C on Tue afternoon, min 10°C on Sun night). Winds decreasing (fresh winds from the NW on Mon morning, light winds from the WSW by Tue morning). | ||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 7 | S 9 | SSE 9 | SSE 9 | S 8 | SSE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | SSW 12 | SSW 11 | S 11 | S 11 | S 10 | ENE 9 |
Wave Graph | |||||||||||||||||||
38 | 53 | 50 | 48 | 43 | 30 | 67 | 153 | 276 | 421 | 370 | 172 | 71 | 49 | 202 | 110 | 149 | 98 | 50 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-off | cross-off | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off |
High Tide | 2:13AM1.01m | 2:58PM1.43m | 3:38AM0.97m | 4:06PM1.50m | 4:58AM0.99m | 5:10PM1.59m | 6:04AM1.04m | 6:08PM1.68m | 7:00AM1.11m | 7:01PM1.75m | 7:49AM1.18m | 7:50PM1.77m | |||||||
Low Tide | 8:06AM0.37m | 9:51PM0.36m | 9:15AM0.39m | 11:05PM0.26m | 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 | |||||||
— | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | |
— | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | |
mm | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | 2 | — | — |
Temp °C | 13 | 15 | 15 | 13 | 15 | 14 | 14 | 18 | 18 | 16 | 14 | 15 | 14 | 17 | 18 | 12 | 13 | 13 | 12 |
Feels °C | 11 | 13 | 11 | 11 | 12 | 10 | 11 | 13 | 14 | 11 | 5 | 7 | 7 | 13 | 13 | 7 | 7 | 7 | 5 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 9 | SSE 9 | SSE 9 | S 8 | S 7 | ENE 8 | ENE 9 | SE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSW 11 | S 11 | S 11 | S 10 | ENE 9 |
38 | 53 | 50 | 48 | 43 | 27 | 67 | 153 | 3 | 421 | 370 | 172 | 71 | 49 | 202 | 110 | 149 | 98 | 50 | |
Swell 2 Height (m) Direction Period (s) | S 9 | SSE 10 | S 8 | E 7 | ENE 7 | ENE 7 | S 7 | NE 5 | E 14 | E 14 | S 13 | N 6 | E 13 | SSW 7 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | — |
27 | 37 | 34 | 25 | 18 | 18 | 8 | 15 | 16 | 4 | 3 | 1 | 3 | 18 | 51 | 56 | 55 | 54 | — | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 12 | ENE 6 | S 8 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | S 6 | S 10 | — | E 14 | — | SSW 12 | NNE 8 | NNE 7 | — | NE 5 | S 18 |
24 | 27 | 8 | 20 | 31 | 30 | 14 | 7 | 1 | 2 | — | 4 | — | 48 | 6 | 5 | — | 7 | 6 | |
Wind waves Height (m) Direction Period (s) | N 3 | — | — | SSW 3 | — | — | NE 4 | NE 5 | ENE 9 | N 5 | NW 4 | WNW 4 | WNW 4 | WNW 4 | NW 4 | NNW 4 | N 5 | W 5 | WSW 6 |
1 | — | — | 1 | — | — | 17 | 23 | 276 | 60 | 44 | 45 | 29 | 11 | 4 | 14 | 85 | 87 | 221 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 55 | 0 | 0 | 126 | 1 | 1 | 21 | 21 | 187 | 21 | 1 | 2 | 0 | 1 | 9 | 1 | 15 |
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.











