Surf Forecasts:
Narrabeen-South surf forecast from 29 Aug 2026:
- Best quality surf: Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 9s period, SSE swell with glassy winds.
- Most powerful swell: Tuesday 1 Sep, 7AM (local time) - 3.5ft (1.0m), 11s period, S swell with 224 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 9s 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 Sunday (Aug 30) at 1AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.9m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Narrabeen-South in the next 16 days are 1.0m 11s and forecast to arrive on Tuesday (Sep 01) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Sep 03) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 30th Aug) | 3ft (0.9m) 9s |
| Best Surf | 1AM (Sun 30th Aug) | 3ft (0.9m) 9s |
| Most Powerful | 7AM (Tue 1st Sep) | 3.5ft (1.0m) 11s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
Alright, let’s see what Narrabeen-South has cooking. The start’s a bit slow, but there’s some serious juice later on if you can wait.
Kicking off Sunday the 30th of August, you’ve got a clean, glassy morning with a 3ft south swell and a light north-west breeze. Energy’s moderate (283). It’s small but fun – a nice little warm-up.
Monday the 31st is similar – 3ft, glassy again, light north wind. Take that morning window because from Monday afternoon it gets bumped up by an east-northeast wind. By Tuesday the 1st of September, the swell drops to around 3ft but the wind is cross-on, and the period stretches to 11 seconds – still, it’s only marginal. Wednesday the 2nd is tiny, 2ft with a light cross-off breeze, energy weak (155). Surfable but nothing special.
Thursday the 3rd and Friday the 4th are small – 2ft to 2ft, clean but weak energy (69 to 111). You’d be on a log. Then Saturday the 5th through Monday the 7th, the wind gets fresh and the surf gets chopped up.
Now, the real deal is Wednesday the 9th of September. That morning sees a solid 6ft south swell with a clean south-southwest cross-off breeze. Energy jumps to a strong 510. This break is very consistent and exposed to the south-east, so it’ll be pumping with decent shape.
But Thursday the 10th of September is the one. Morning brings a big 8ft southerly groundswell with an 11-second period – that’s long-period, powerful stuff. The combined energy is a massive 1386 (very strong), and the wind is glassy from the north. This is for experienced surfers only – beginners stay on the beach. At this size at a beach break, it’s going to be challenging but epic. Long lulls between sets, but when they come, hold on. Crowds are often here, but this kind of size will thin them out a bit. Water temp is about average for the season.
Friday the 11th still has a good 5ft south swell but the wind turns cross-off and then messy. After that, the surf fades fast through the weekend and into Monday the 14th where it’s back to tiny, glassy, and weak.
So the call is simple: the first week is mostly small and windy. The 9th is good, but the 10th of September is the standout – big, glassy, powerful. That’s your day.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 12°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed morning, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | SSE 10 | S 10 | S 19 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 151 | 160 | 220 | 198 | 138 | 95 | 134 | 224 | 185 | 138 | 102 | 73 | 49 | 45 | 58 | 32 | 73 | 110 | 87 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | glassy | glassy | on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | off | glassy | cross-off | cross-off | on | cross |
High Tide | 9:25AM1.35m | 9:29PM1.45m | 10:02AM1.40m | 10:09PM1.35m | 10:42AM1.42m | 10:55PM1.24m | 11:27AM1.43m | 11:48PM1.13m | 12:21PM1.42m | 00:54AM1.02m | 1:26PM1.41m | 2:17AM0.95m | |||||||
Low Tide | 3:15AM0.11m | 3:22PM0.25m | 3:47AM0.14m | 4:07PM0.26m | 4:21AM0.18m | 4:57PM0.29m | 4:59AM0.25m | 5:54PM0.32m | 5:44AM0.33m | 7:03PM0.35m | 6:39AM0.40m | 8:24PM0.36m | |||||||
 |  | | | | | | | | | | | |  | | | | | | |
 | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — |
 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 17 | 16 | 15 | 17 | 16 | 16 | 24 | 26 | 20 | 27 | 27 | 21 | 25 | 24 | 17 | 20 | 18 | 16 |
Feels °C | 13 | 15 | 14 | 16 | 14 | 13 | 15 | 20 | 22 | 16 | 23 | 22 | 18 | 22 | 23 | 12 | 17 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 7 | S 6 | SSE 10 | S 10 | S 11 | NNE 5 |
| kJ | 151 | 160 | 220 | 198 | 138 | 95 | 134 | 224 | 185 | 138 | 102 | 73 | 49 | 24 | 17 | 32 | 73 | 58 | 32 |
Swell 2 Height (m) Direction Period (s) | S 8 | SE 10 | ENE 8 | S 17 | S 15 | S 11 | S 14 | ENE 11 | ENE 11 | NE 6 | NE 5 | ENE 10 | ENE 10 | S 10 | S 11 | ENE 10 | S 6 | S 6 | S 11 |
| kJ | 105 | 94 | 24 | 148 | 112 | 41 | 99 | 23 | 37 | 39 | 18 | 33 | 33 | 45 | 58 | 19 | 19 | 11 | 87 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | SE 9 | ENE 8 | ENE 9 | S 16 | ENE 9 | ENE 8 | N 12 | ENE 10 | ENE 10 | NE 6 | NE 6 | NE 6 | ENE 10 | S 8 | ENE 10 | S 19 | S 7 |
| kJ | 32 | 29 | 21 | 24 | 17 | 78 | 15 | 7 | 3 | 34 | 33 | 8 | 5 | 9 | 19 | 5 | 19 | 110 | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 3 | NE 4 | NE 4 | NE 5 | NW 3 | NW 3 | W 2 | NW 3 | WNW 3 | — | SSW 5 | — | ENE 3 | NNW 5 |
| kJ | — | — | — | — | — | 3 | 12 | 4 | 30 | 2 | 2 | 1 | 1 | 2 | — | 27 | — | 3 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 20 | 0 | 0 | 20 | 2 | 2 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 3 | 0 | 125 | 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.
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