Surf Forecasts:
Narrabeen-South surf forecast from 4 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 1PM (local time) - 1.5ft (0.4m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 10AM (local time) - 5.5ft (1.7m), 8s period, ENE swell with 409 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 1PM (local time) - 1.5ft (0.4m), 10s period with E 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 Wednesday (Aug 05) at 1PM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.2m and 13s. 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 1.7m 8s and forecast to arrive on Monday (Aug 10) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Wednesday (Aug 05) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 5th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 1PM (Wed 5th Aug) | 1.5ft (0.4m) 10s |
| Most Powerful | 10AM (Mon 10th Aug) | 5.5ft (1.7m) 8s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
Alright, Rusty here, and I’ve been staring at the charts for Narrabeen-South. Let’s not sugarcoat it: the next week and a half is a real grind. There’s a whole lot of small, weak stuff with poor quality flagged on the data. This is a stretch that’s gonna test your patience.
We’ve got a long dry spell to kick things off. From Tuesday, the 4th of August, right through to the end of the first week, we’re looking at tiny waves – mostly under 2ft up to about 3ft – with the combined swell energy barely cracking triple digits (mostly between 38 and 170). The winds are often cross or onshore, making it messy. No standouts here, just a lot of "poor surf conditions" and "surfable waves but very ordinary conditions." It's not looking like a paddle session.
The real action, and the only true standout in this whole 16-day window, is slated for Friday morning, the 14th of August. That’s when a solid 6ft southerly swell rolls in with a period of 12 seconds, pumping nearly 900 units of combined swell energy (888). The wind is a light, cross-offshore breeze from the WSW, which will keep the surface clean. This is where the magic is. For a break that’s exposed to the SE, getting this much S swell with good wind is a gift. The water temp is about 64°F, which is pretty normal for this time of year, so you won’t need a crazy thick suit.
Look, before that Friday, there’s a glimmer on Thursday morning, the 13th of August. The swell is a smaller 4ft from the SSW, but the wind is a gentle offshore (WSW). It’s got "expect good surf conditions" written all over it, with a combined energy of 243. It’s not the big Friday, but it’s clean and rideable. Crowds are listed as "often" at Narrabeen, so expect company on any decent day.
After the Friday peak, things settle quickly. The weekend of the 15th and 16th still has some waist-high S swell with clean windows, but the energy drops. By the following week, from the 17th onward, we’re back to washing machine conditions – small, weak, and mostly onshore. It’s a classic case of: wait for the 14th, or don’t bother.
Rusty
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 8°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 20°C on Sun afternoon, min 9°C on Sun night). Winds increasing (light winds from the SW on Fri night, fresh winds from the NNE by Sun night). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | SE 10 | SSW 5 | SSE 13 | E 10 | E 9 | S 10 | S 8 | S 8 | S 9 | S 9 | S 9 | S 8 | SSE 9 | SSE 9 | E 8 | ENE 8 | NE 8 | NE 7 | ENE 8 | ENE 9 | ENE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 25 | 9 | 16 | 18 | 27 | 17 | 105 | 142 | 99 | 155 | 75 | 50 | 44 | 43 | 27 | 65 | 178 | 284 | 409 | 211 | 133 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-off | cross-off | cross-off | off | off | cross | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off |
High Tide | 12:02PM1.30m | 00:00AM1.21m | 12:53PM1.34m | 00:59AM1.10m | 1:52PM1.38m | 2:13AM1.01m | 2:58PM1.43m | 3:38AM0.97m | 4:06PM1.50m | 4:58AM0.99m | 5:10PM1.59m | 6:04AM1.04m | 6:08PM1.68m | ||||||||
Low Tide | 6:06PM0.42m | 6:18AM0.26m | 7:12PM0.44m | 7:07AM0.32m | 8:30PM0.42m | 8:06AM0.37m | 9:51PM0.36m | 9:15AM0.39m | 11:05PM0.26m | 10:25AM0.38m | 00:08AM0.15m | 11:30AM0.34m | 1:02AM0.06m | ||||||||
 | |  | | | | |  | | | |  | |  | | | |  | | | | |
 | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — |
Temp °C | 15 | 17 | 12 | 16 | 18 | 12 | 15 | 15 | 13 | 15 | 15 | 14 | 15 | 15 | 14 | 18 | 20 | 18 | 17 | 15 | 14 |
Feels °C | 12 | 15 | 8 | 11 | 15 | 7 | 12 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 12 | 14 | 15 | 12 | 8 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SSW 5 | E 6 | E 10 | E 9 | SSW 5 | S 8 | S 8 | S 9 | S 9 | S 9 | S 8 | S 8 | S 7 | E 8 | ENE 8 | SSE 8 | ENE 10 | ENE 8 | ENE 9 | ENE 9 |
| kJ | 25 | 9 | 3 | 18 | 27 | 7 | 105 | 142 | 99 | 155 | 74 | 47 | 29 | 39 | 18 | 65 | 11 | 72 | 409 | 211 | 133 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | ESE 7 | E 11 | E 13 | SSW 5 | S 10 | E 10 | E 12 | NNE 3 | SE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | ENE 10 | S 7 | S 9 | S 13 | SSW 5 |
| kJ | 10 | 5 | 10 | 13 | 7 | 17 | 16 | 25 | 4 | 25 | 75 | 50 | 44 | 43 | 27 | 13 | 20 | 4 | 2 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | NE 5 | SSE 10 | SSE 13 | S 10 | S 11 | E 10 | SSE 13 | NE 8 | SSE 10 | NE 6 | NE 6 | ENE 9 | E 8 | ENE 7 | S 7 | S 6 | E 14 | S 10 | S 13 | — | S 12 |
| kJ | 3 | 9 | 16 | 7 | 10 | 8 | 16 | 3 | 38 | 10 | 6 | 28 | 18 | 17 | 15 | 6 | 16 | 2 | 3 | — | 3 |
Wind waves Height (m) Direction Period (s) | SSW 5 | — | SW 5 | SW 4 | W 3 | W 3 | WSW 3 | — | N 4 | — | — | — | — | — | NE 3 | NE 4 | NE 8 | NE 7 | W 3 | WSW 4 | NW 3 |
| kJ | 16 | — | 30 | 16 | 1 | 5 | 3 | — | 9 | — | — | — | — | — | 1 | 2 | 178 | 284 | 8 | 7 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 100 | 1 | 15 | 3 | 15 | 0 | 19 | 0 | 0 | 55 | 0 | 0 | 91 | 2 | 1 | 21 | 1 | 21 | 67 | 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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