
Surf Forecasts:
Narrabeen-South surf forecast from 20 Jul 2026:
- Best quality surf: Friday 24 Jul, 1PM (local time) - 6ft (1.9m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Saturday 25 Jul, 1AM (local time) - 7ft (2.2m), 15s period, S swell with 2,023 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 4AM (local time) - 4ft (1.2m), 10s period with ENE 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 (Jul 22) at 4AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.9m and 4s is also forecast. 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 2.2m 15s and forecast to arrive on Saturday (Jul 25) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Jul 24) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 22nd Jul) | 4ft (1.2m) 10s |
| Best Surf | 1PM (Fri 24th Jul) | 6ft (1.9m) 9s |
| Most Powerful | 1AM (Sat 25th Jul) | 7ft (2.2m) 15s |
Table - best surf conditions forecast for Narrabeen-South over the next 16 days.
The Lowdown
Alright, Rusty here, let’s have a look at what’s coming up for Narrabeen-South.
We’ve got a bit of a slow start, but the pattern is building towards a solid run of south swell. The first few days are pretty average, with a small, short-period ENE swell and tricky wind conditions. Tuesday the 21st kicks off with a 5ft ENE swell and a cross-on breeze, making for a messy, choppy afternoon. Wednesday the 22nd is a little better, with the swell dropping to 4ft but the wind turning light cross-off in the morning, and then it goes glassy in the afternoon – that’s a sweet window for a clean, small wave session. Thursday the 23rd is small and clean but the energy is dropping off.
Now, the real action starts Friday the 24th. Swell direction swings to the south and size jumps to 6ft, with a 10-second period and a gentle offshore breeze in the morning. The combined energy hits 563 (moderate to strong), and the conditions are clean. That’s your first standout: Friday morning, solid south swell, light offshore, and the place should be linking up nicely. Saturday the 25th keeps it going with a 6ft south swell, 11-second period, and a moderate cross-off breeze – the energy is beefy at 849 (strong), so expect some proper push. Sunday the 26th is a touch smaller at 5ft but still a clean, gentle offshore.
The second week gets a bit more sporadic. Monday the 27th is clean but small. Wednesday the 29th is another clean morning, 4ft south swell. Then we hit the real gem: Friday the 31st of July. The morning has a 3ft south swell, but the period is a massive 16 seconds – that’s a long period groundswell that’ll wrap in with real power. The combined energy is 749 (strong), and it’s clean with a cross-off breeze. The afternoon is even better, with a 4ft, 15-second south swell and 866 energy (strong), still clean. This is a classic Narrabeen-South day: long lines, clean, and the crowd will be out.
But the absolute best on offer is Saturday the 1st of August. The morning delivers a 5ft south swell at 14 seconds, with a gentle offshore and a combined energy of 1292 (very strong). The water temperature is about average for the time of year. This is for experienced surfers – that’s a solid, powerful south groundswell with clean, offshore winds. It’s the standout of the entire outlook. The afternoon gets a bit mushy as the wind swings, but the morning is pure gold.
After that, the surf drops off again. Sunday the 2nd and Monday the 3rd are blown out or messy, though Monday the 3rd afternoon has a massive 16-second period but with a fresh breeze, making it only for the hardy. Tuesday the 4th cleans up in the afternoon, and Wednesday the 5th has a nice 4ft SSE swell with a light breeze.
So, overall, the best windows are Friday the 24th morning, Saturday the 25th, Friday the 31st, and top of the list: Saturday the 1st of August morning. Get on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 11°C on Tue night). Winds increasing (calm on Wed afternoon, fresh winds from the WSW by Thu afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 7°C on Fri night). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Sun afternoon). | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 10 | S 9 | S 15 | S 11 | S 10 | S 11 | S 11 | S 10 | S 9 |
Wave Graph | |||||||||||||||||||
540 | 433 | 314 | 339 | 269 | 210 | 168 | 119 | 92 | 53 | 522 | 425 | 2023 | 826 | 424 | 272 | 434 | 502 | 320 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross-off | glassy | cross-off | cross-off | off | off | off | cross | cross-off | cross-off | off | cross-off | off | cross-on | off |
High Tide | 00:55AM1.15m | 1:52PM1.28m | 1:52AM1.02m | 2:46PM1.29m | 2:58AM0.92m | 3:41PM1.31m | 4:10AM0.88m | 4:35PM1.34m | 5:16AM0.89m | 5:25PM1.38m | 6:10AM0.92m | 6:11PM1.44m | |||||||
Low Tide | 7:12AM0.32m | 8:14PM0.51m | 7:55AM0.40m | 9:28PM0.51m | 8:44AM0.46m | 10:38PM0.48m | 9:38AM0.49m | 11:37PM0.43m | 10:34AM0.49m | 00:25AM0.37m | 11:27AM0.47m | 1:07AM0.31m | |||||||
— | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | |
— | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 15 | 15 | 19 | 20 | 16 | 18 | 17 | 11 | 13 | 13 | 11 | 18 | 19 | 13 | 16 | 15 | 15 |
Feels °C | 12 | 13 | 12 | 13 | 16 | 17 | 12 | 13 | 9 | 3 | 9 | 10 | 7 | 14 | 14 | 7 | 14 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 10 | S 9 | S 15 | S 11 | S 10 | S 11 | S 11 | S 10 | S 9 |
540 | 433 | 314 | 339 | 269 | 210 | 168 | 119 | 92 | 53 | 522 | 425 | 2023 | 826 | 424 | 272 | 434 | 502 | 320 | |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 | S 18 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | S 16 | ENE 8 | ENE 8 | ENE 8 |
84 | 56 | 32 | 31 | 17 | 20 | 8 | 8 | 7 | 6 | 40 | 28 | 27 | 15 | 14 | 45 | 6 | 6 | 6 | |
Swell 3 Height (m) Direction Period (s) | SE 14 | S 16 | S 15 | S 14 | S 12 | — | — | E 9 | SE 8 | SE 8 | E 7 | S 21 | — | S 20 | S 19 | ENE 8 | E 8 | ENE 8 | S 13 |
8 | 19 | 17 | 4 | 11 | — | — | 2 | 3 | 2 | 1 | 35 | — | 8 | 7 | 6 | 1 | 6 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | NNE 4 | WNW 2 | — | W 3 | SW 5 | SSW 5 | SSW 6 | — | — | — | WNW 3 | — | SW 2 | SSW 4 | — | — |
— | — | 6 | 29 | 1 | — | 2 | 10 | 25 | 128 | — | — | — | 4 | — | 1 | 8 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 127 | 1 | 0 | 0 | 0 | 2 | 27 | 0 | 0 | 4 | 0 | 2 | 0 | 2 | 0 | 20 | 0 |
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.










