Surf Forecasts:
Newcastle -The Harbour surf forecast from 17 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 1AM (local time) - 3ft (0.9m), 8s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 7PM (local time) - 3.5ft (1.1m), 9s period, ESE swell with 197 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 1AM (local time) - 3ft (0.9m), 8s period with ESE swell.
Best Forecast Surf Conditions for Newcastle -The Harbour this week:
The surf forecast for Newcastle -The Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 1AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.6m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Newcastle -The Harbour in the next 16 days are 1.1m 9s and forecast to arrive on Wednesday (Aug 19) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 9s period and expected on Monday (Aug 17) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 19th Aug) | 3ft (0.9m) 8s |
| Best Surf | 1AM (Wed 19th Aug) | 3ft (0.9m) 8s |
| Most Powerful | 7PM (Wed 19th Aug) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for Newcastle -The Harbour over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Mon morning, min 14°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Warm (max 21°C on Thu morning, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 10 | ESE 10 | ESE 9 | ESE 7 | ESE 7 | E 6 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 8 | ENE 9 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 117 | 96 | 136 | 124 | 111 | 103 | 92 | 196 | 147 | 54 | 47 | 28 | 19 | 12 | 7 | 7 | 7 | 4 | 13 | 15 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | glassy | glassy | cross-on | on | cross-on | on | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | glassy | glassy | cross-on | cross |
High Tide | 11:30AM1.42m | 11:35PM1.30m | 12:12PM1.39m | 00:16AM1.16m | 12:59PM1.36m | 1:04AM1.03m | 1:52PM1.34m | 2:06AM0.94m | 2:52PM1.35m | 3:30AM0.91m | 3:55PM1.38m | 4:54AM0.95m | 4:52PM1.43m | ||||||||
Low Tide | 5:38PM0.44m | 5:46AM0.37m | 6:30PM0.53m | 6:20AM0.46m | 7:31PM0.60m | 6:59AM0.54m | 8:45PM0.63m | 7:47AM0.60m | 10:07PM0.62m | 8:49AM0.64m | 11:13PM0.55m | 9:57AM0.64m | 11:59PM0.47m | ||||||||
 | |  |  | |  |  | |  | | | | | |  | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 21 | 21 | 20 | 18 | 17 | 15 | 16 | 16 | 15 | 17 | 20 | 18 |
Feels °C | 14 | 13 | 13 | 12 | 13 | 15 | 14 | 13 | 13 | 17 | 17 | 17 | 16 | 16 | 13 | 14 | 12 | 15 | 15 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | S 8 | S 8 | ESE 7 | ESE 8 | ESE 7 | ESE 10 | ESE 9 | ESE 7 | ESE 7 | E 6 | E 6 | ENE 6 | S 5 | ENE 6 | ENE 6 | ENE 6 | S 9 | S 8 | S 11 |
| kJ | 117 | 96 | 35 | 34 | 111 | 103 | 84 | 196 | 147 | 54 | 47 | 28 | 19 | 12 | 9 | 7 | 7 | 4 | 14 | 33 | 35 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | S 12 | S 12 | S 11 | ESE 11 | ESE 10 | S 9 | E 11 | E 11 | E 10 | SE 7 | S 12 | SE 7 | ENE 6 | S 5 | S 4 | S 8 | ENE 8 | SSE 15 | S 6 |
| kJ | 81 | 78 | 25 | 10 | 55 | 85 | 92 | 14 | 10 | 2 | 8 | 16 | 3 | 7 | 7 | 2 | 2 | 5 | 13 | 47 | 7 |
Swell 3 Height (m) Direction Period (s) | S 16 | SSW 13 | ESE 11 | E 9 | SE 14 | S 10 | S 9 | — | — | — | S 14 | E 10 | E 9 | — | SE 7 | SE 7 | S 9 | S 6 | SSE 16 | ENE 9 | ENE 8 |
| kJ | 21 | 53 | 12 | 2 | 47 | 30 | 25 | — | — | — | 4 | 2 | 2 | — | 2 | 2 | 6 | 1 | 51 | 15 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 7 | ESE 7 | — | — | — | ENE 3 | NNE 3 | — | ENE 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 136 | 124 | — | — | — | 3 | 4 | — | 7 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 45 | 45 | 81 | 106 | 30 | 0 | 0 | 74 | 0 | 0 | 47 | 0 | 23 | 146 | 91 | 163 | 173 | 91 | 0 | 41 | 0 |
Best forecast wave conditions in Newcastle | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Newcastle -The Harbour Surf forecast
The above surf forecast table for Newcastle -The Harbour provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Newcastle -The Harbour can be found by selecting the local surf guide option on the grey menu. Our Newcastle -The Harbour 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 (Newcastle -The Harbour) 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 Newcastle -The Harbour 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.
Are you planning a holiday in Newcastle? If you are looking for accommodation near Newcastle -The Harbour, camping, hotels and holiday cottages in Newcastle, consider staying in Newcastle which is 3 km (2 miles) away. Other places in and around Newcastle where you can find information about places to rent, and car hire include Catherine Hill Bay which is 32 km (20 miles) away, Port Stephens, Cessnock and Central Coast.
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