Surf Forecasts:
Narrabeen-South surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 4PM (local time) - 4.5ft (1.3m), 16s period, S swell with 822 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s 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 (Aug 28) at 4AM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.5m and 8s. 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 1.3m 16s and forecast to arrive on Monday (Aug 31) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 5s period and expected on Wednesday (Sep 02) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
| Best Surf | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
| Most Powerful | 4PM (Mon 31st Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s look at what’s coming for Narrabeen-South over the next couple weeks.
The first real surf shows up Thursday the 27th of August with a messy 6ft SE swell at 9 seconds, cross-shore wind, and moderate energy (497). Nothing to rush out for.
Friday morning the 28th is the highlight of the first week. Glassy with a light west wind, clean 6ft SSE groundswell at a long 11 seconds, and solid energy (727). That’s a proper session – a little overhead, clean, and crowds are likely at a spot like this, but get in early.
Saturday morning the 29th stays nice – clean 4ft SSE swell at 10 seconds with light offshore SW wind (575 energy). Good, but not as big as Friday.
From Sunday the 30th through Monday the 31st, it gets small. Monday morning offers a weird little gem – only 2ft but with a very long 17-second groundswell (487 energy) and glassy. That period is extreme for such small surf – it’ll be ultra clean but tiny and inconsistent, more for a point or reef than a beach. Water temp is about normal for the season.
Tuesday the 1st of September through Sunday the 6th is a long stretch of poor surf. Tiny waves under 3ft and bad wind. A real lull.
Monday the 7th of September brings a huge spike – 12ft S swell (2553 energy in the morning, then 3849 in the afternoon) and clean wind, but it’s way too big for this break. Only for experts or tow-ins.
Tuesday the 8th of September morning is the real standout: 8ft S swell, clean with light SSW offshore, and excellent conditions for experienced surfers (2110 energy). That’s your best big-wave window.
Wednesday the 9th backs off to 5ft and is just okay.
Friday morning the 11th of September throws in another ultra-long period event – 3ft S swell at 20 seconds (670 energy) and clean. Again, tiny but with a super long period – clean but inconsistent and small.
Bottom line: your best calls are Friday morning the 28th of August for a clean, solid session, and Tuesday morning the 8th of September for bigger, powerful, clean waves. The rest is mostly flat, poor, or too big.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sun morning, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed morning, min 12°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 9 | S 10 | S 17 | S 16 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | ENE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 421 | 258 | 643 | 380 | 287 | 305 | 363 | 151 | 198 | 264 | 301 | 274 | 822 | 189 | 242 | 189 | 146 | 106 | 71 | 33 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | cross-off | cross-off | off | cross | glassy | cross-off | cross | off | glassy | on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross |
High Tide | 7:40PM1.55m | 8:16AM1.22m | 8:16PM1.54m | 8:50AM1.29m | 8:51PM1.51m | 9:25AM1.35m | 9:29PM1.45m | 10:02AM1.40m | 10:09PM1.35m | 10:42AM1.42m | 10:55PM1.24m | 11:27AM1.43m | 11:48PM1.13m | |||||||
Low Tide | 2:14AM0.14m | 1:59PM0.28m | 2:44AM0.11m | 2:39PM0.26m | 3:15AM0.11m | 3:22PM0.25m | 3:47AM0.14m | 4:07PM0.26m | 4:21AM0.18m | 4:57PM0.29m | 4:59AM0.25m | 5:54PM0.32m | ||||||||
 |  | |  | |  | | | | | | | | | | | | | |  | |
 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — |
 | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 16 | 15 | 15 | 16 | 15 | 14 | 17 | 15 | 15 | 17 | 16 | 15 | 23 | 25 | 20 | 27 | 27 | 22 |
Feels °C | 13 | 13 | 13 | 12 | 13 | 14 | 13 | 14 | 15 | 13 | 14 | 15 | 13 | 13 | 19 | 21 | 16 | 23 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 9 | S 10 | S 8 | S 16 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | ENE 10 |
| kJ | 421 | 258 | 643 | 380 | 287 | 305 | 363 | 151 | 198 | 264 | 301 | 196 | 822 | 189 | 242 | 189 | 146 | 106 | 71 | 33 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | SSE 13 | ENE 8 | ENE 8 | ENE 8 | S 9 | S 9 | S 8 | SE 10 | ENE 9 | S 17 | S 17 | ENE 9 | S 16 | ENE 11 | ENE 11 | NE 6 | ENE 10 | NNE 5 | S 10 |
| kJ | 40 | 147 | 26 | 26 | 25 | 76 | 177 | 113 | 96 | 25 | 86 | 274 | 16 | 79 | 39 | 38 | 31 | 33 | 13 | 30 |
Swell 3 Height (m) Direction Period (s) | S 14 | ENE 9 | S 14 | S 13 | S 11 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | SE 9 | ENE 9 | ENE 9 | N 13 | ENE 9 | N 12 | N 12 | ENE 10 | NE 5 | ENE 10 | NE 5 |
| kJ | 36 | 50 | 58 | 30 | 37 | 29 | 28 | 31 | 30 | 20 | 25 | 17 | 3 | 15 | 3 | 3 | 34 | 10 | 33 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 3 | — | S 9 | — | — | — | — | — | — | — | NNE 3 | NE 4 | NE 4 | NW 3 | NNW 3 | NW 3 | NW 3 |
| kJ | — | — | — | 3 | — | 165 | — | — | — | — | — | — | — | 4 | 3 | 45 | 2 | 4 | 3 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 4 | 1 | 0 | 121 | 0 | 0 | 20 | 0 | 0 | 4 | 0 | 0 | 20 | 2 | 2 | 3 | 1 | 2 | 2 | 2 |
Best forecast wave conditions in Sydney North Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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