
Surf Forecasts:
Big Wave Bay surf forecast from 14 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 8PM (local time) - 5ft (1.5m), 8s period, E swell with 249 kJ wave energy.
Best Forecast Surf Conditions for Big Wave Bay this week:
The most powerful waves expected at Big Wave Bay in the next 16 days are 1.5m 8s and forecast to arrive on Tuesday (Sep 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 7s period and expected on Monday (Sep 14) at 8PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Tue 15th Sep) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Alright, let’s get into it. This is Rusty.
Right now, it’s a pretty bleak picture. There’s a full 14-day stretch here where you’d be lucky to get anything worth paddling out for. The surf is just not showing up for Big Wave Bay at all through the middle of September and into the last week. We’ve got wave energy barely ticking over, with combined swell energy values mostly sitting in the weak range – 45, 38, down to single digits – so it’s flat, or close to it, for a long time. The wind is a problem too; it’s cross-on from the east nearly every day, chopping things up even on the tiny days.
It’s not until the very end of the forecast, on the 27th of September, that we see a hint of life. That Sunday morning, the wind goes glassy – dead calm – and the swell direction shifts to the southeast with a period of 14 seconds. That’s a proper groundswell, and combined energy jumps to 123 (moderate). The waves are only around 2 ft, but with those conditions, it’s clean. It’s surfable, but very ordinary. Honestly, that’s your best option in the whole window, and even then, it’s not exactly a standout.
Now, the real kicker comes on the 29th of September, that Tuesday morning. We’ve got a 18 ft swell from the southeast with a very long period of 13 seconds and perfect offshore north wind – glassy. The combined energy is an enormous 10400 (very strong wave energy). For a spot that’s sheltered and suited to a beginner-friendly break like Big Wave Bay, that is way too big. It’s strictly for experts only, and even then, you’d have to be mad to try it. The water temp sits at 83°F, which is pretty much normal for this time of year.
So, bottom line: if you’re a beginner or an intermediate, this whole 16-day run is a write-off. Conditions don’t improve for two solid weeks, and then when they do, it’s either tiny and average or massive and dangerous. Hang in there – it tends not to stay this poor for long, but this one’s a tough stretch.
Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Warm (max 28°C on Mon afternoon, min 26°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the ENE by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 26°C on Thu afternoon). Winds decreasing (fresh winds from the ENE on Thu night, light winds from the NE by Sat night). | |||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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) | E 6 | E 7 | E 6 | E 7 | E 6 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 |
Wave Graph | ||||||||||||||||||||
34 | 69 | 127 | 183 | 212 | 183 | 171 | 188 | 112 | 113 | 124 | 102 | 91 | 60 | 67 | 71 | 34 | 33 | 19 | 23 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | glassy |
High Tide | 10:07PM1.48m | 10:55AM1.02m | 10:23PM1.57m | 11:05AM0.88m | 10:49PM1.61m | 11:20AM0.76m | 11:21PM1.62m | 11:43AM0.67m | 00:00AM1.59m | 12:15PM0.59m | 00:49AM1.54m | 1:04PM0.53m | 1:51AM1.48m | |||||||
Low Tide | 4:24PM0.53m | 5:16AM0.32m | 4:46PM0.62m | 6:06AM0.34m | 5:03PM0.70m | 6:59AM0.38m | 7:59AM0.43m | 9:08AM0.47m | 2:19PM0.56m | 10:26AM0.47m | 2:35PM0.52m | |||||||||
— | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | |
mm | 1 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 31 | 32 | 27 | 27 | 28 | 27 | 27 | 26 | 24 | 24 | 26 | 26 | 28 | 29 | 29 | 28 | 29 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | E 6 | S 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SW 6 | S 6 | — | — | E 11 | E 11 | E 10 | E 10 | — | — | E 6 | E 6 | E 6 | E 7 |
34 | 26 | 16 | 9 | 5 | 4 | 1 | 1 | — | — | 2 | 2 | 2 | 8 | — | — | 34 | 30 | 19 | 23 | |
Swell 2 Height (m) Direction Period (s) | S 7 | E 14 | E 13 | E 13 | E 13 | — | — | — | — | — | — | — | — | — | — | — | — | E 16 | E 11 | SE 14 |
24 | 4 | 4 | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 2 | 7 | |
Swell 3 Height (m) Direction Period (s) | E 14 | — | — | E 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | E 12 | E 15 | E 11 |
4 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | 2 | |
Wind waves Height (m) Direction Period (s) | — | E 7 | E 6 | E 7 | E 6 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | E 6 | E 6 | — | ENE 6 | ESE 7 | — |
— | 69 | 127 | 183 | 212 | 183 | 171 | 188 | 112 | 113 | 124 | 102 | 91 | 60 | 67 | 71 | — | 33 | 18 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 581 | 581 | 656 | 656 | 581 | 803 | 803 | 581 | 929 | 935 | 581 | 929 | 670 | 581 | 928 | 928 | 581 | 929 | 928 | 581 |
Best forecast wave conditions in Hong Kong | ||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Big Wave Bay Surf forecast
The above surf forecast table for Big Wave Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Wave Bay can be found by selecting the local surf guide option on the grey menu. Our Big Wave Bay 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 (Big Wave Bay) 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 Big Wave Bay 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 Hong Kong? If you are looking for accommodation near Big Wave Bay, camping, hotels and holiday cottages in Hong Kong, consider staying in Hong Kong which is 9 km (6 miles) away. Other places in and around Hong Kong where you can find information about places to rent, and car hire include Aberdeen which is 10 km (6 miles) away, Kowloon, Shenzhen and Yantian.










