Surf Forecasts:
Narrabeen-South surf forecast from 3 Aug 2026:
- Best quality surf: Saturday 8 Aug, 1AM (local time) - 4.5ft (1.3m), 9s period, S swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 4AM (local time) - 4.5ft (1.3m), 9s period, S swell with 264 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 0.5m and 4s. 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 9s and forecast to arrive on Saturday (Aug 08) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Monday (Aug 10) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 5th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 1AM (Sat 8th Aug) | 4.5ft (1.3m) 9s |
| Most Powerful | 4AM (Sat 8th Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
G’day, Rusty here.
Let’s get real. For the next week, Narrabeen-South (Australia) is pretty much a bust. The waves are tiny—nothing over 1.0m, mostly 0.3ft to 0.6ft—and the combined swell energy is weak, mostly under 100 (44). The wind is messy, and even when it’s clean, there’s just no size. From Tuesday 4th August through Monday 10th August, it’s a long, flat gap. Nothing to paddle for.
Things finally wake up on Tuesday morning 11th August. We’ve got a clean 4ft S swell with a 9-second period, light WNW cross-offshore wind, and combined energy of 348 (moderate). This is the first proper surf of the outlook—clean, punchy, and well-suited to this exposed S-facing spot. It’s an advanced wave, so not for beginners, and crowds are likely on days like this.
Then it gets crazy. On Friday morning 14th August, a massive 10ft S swell rolls in, building to 16ft SSE by Saturday 15th August. Combined energy skyrockets to 1551, then 5306 and 5522—very strong wave energy. Wind is favourable (cross-off or glassy), but the swell is way too big for this break. Even for experts, it’s dangerous and unsurfable. Sunday 16th August stays monstrous with 15ft SSE and glassy conditions, but again, too big.
The light at the end of the tunnel? By Tuesday morning 18th August, the swell drops to a more manageable 6ft ESE with a 10-second period and clean 30 km/h S cross-off wind. Combined energy is still high at 682 (moderate to strong). Then Wednesday morning 19th August looks like the real standout: 5ft ESE swell, 9-second period, light S cross-off breeze, and combined energy of 383. Clean, solid, and finally within range for advanced surfers. That’s the one to circle.
Water temp is about average for this time of year, nothing unusual.
Bottom line: the first week is a dead loss. The second week has one real gem around Wednesday 19th August, but the big stuff in between is just for watching.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Tue afternoon, min 9°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Sun morning, min 9°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the WNW by Sun afternoon). | ||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 | SE 10 | SSW 5 | E 11 | E 10 | E 9 | S 10 | S 8 | S 8 | S 9 | SSW 9 | SSE 9 | S 9 | S 8 | S 7 | E 8 | ENE 10 | ENE 9 | ENE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 68 | 25 | 9 | 10 | 18 | 15 | 16 | 46 | 92 | 159 | 79 | 86 | 263 | 132 | 67 | 22 | 35 | 80 | 179 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-on | cross-off | cross-off | cross | glassy | glassy | on | cross-on | cross-on | cross | cross-off |
High Tide | 11:11PM1.32m | 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 | |||||||
Low Tide | 5:36AM0.20m | 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 | |||||||
 |  | | | | | |  | | | | |  | | | |  | | | |
 | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — |
 | — | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 17 | 12 | 15 | 17 | 13 | 15 | 15 | 13 | 16 | 15 | 15 | 15 | 15 | 14 | 20 | 19 | 13 |
Feels °C | 13 | 12 | 15 | 7 | 11 | 14 | 7 | 13 | 11 | 11 | 12 | 11 | 14 | 12 | 11 | 10 | 14 | 12 | 4 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SSW 5 | SSW 5 | E 6 | E 10 | E 9 | S 10 | S 8 | S 8 | S 9 | SSW 9 | SSE 9 | S 9 | S 8 | S 7 | S 6 | ENE 5 | ENE 9 | ENE 10 |
| kJ | 68 | 9 | 9 | 3 | 18 | 15 | 16 | 46 | 92 | 159 | 79 | 86 | 263 | 132 | 67 | 11 | 19 | 80 | 179 |
Swell 2 Height (m) Direction Period (s) | NE 4 | SE 10 | ESE 7 | E 11 | S 10 | SSW 4 | E 10 | S 10 | E 12 | NNE 3 | SSE 10 | E 7 | E 10 | NE 6 | SE 9 | E 8 | ENE 10 | S 8 | S 7 |
| kJ | 5 | 25 | 5 | 10 | 7 | 4 | 8 | 17 | 25 | 2 | 37 | 4 | 8 | 10 | 20 | 18 | 35 | 10 | 4 |
Swell 3 Height (m) Direction Period (s) | E 15 | ESE 7 | SSE 10 | ESE 8 | E 13 | S 11 | E 8 | E 10 | SSE 12 | E 10 | NE 6 | ENE 6 | ENE 6 | SSE 9 | E 8 | SSE 8 | E 8 | E 15 | SW 5 |
| kJ | 4 | 10 | 9 | 7 | 13 | 10 | 5 | 16 | 15 | 8 | 6 | 4 | 4 | 17 | 12 | 14 | 18 | 4 | 1 |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 5 | ENE 5 | SW 5 | SW 4 | — | SW 4 | W 3 | — | N 3 | W 3 | SSE 2 | — | — | ENE 7 | NNE 4 | NNW 3 | NNE 4 | W 4 |
| kJ | 4 | 31 | 2 | 19 | 12 | — | 17 | 3 | — | 6 | 3 | 1 | — | — | 26 | 22 | 1 | 24 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 1 | 172 | 263 | 56 | 97 | 15 | 0 | 37 | 0 | 2 | 4 | 0 | 0 | 171 | 54 | 9 | 21 | 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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