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 11PM.
| 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 folks, Rusty here. Let’s have a look at what the next couple of weeks are shaping up like for Big Wave Bay. I’ll be straight with you – it’s a grim outlook for most of the period. We’ve got a long, quiet stretch ahead.
Right off the bat, from Monday the 14th right through until Saturday the 26th of September, it’s pretty much a write-off. The swell is tiny, the wind is almost always cross or cross-onshore, and conditions are just poor. We’re looking at wave heights mostly between 0.7 ft and 5 ft, but with all that easterly wind messing it up, it’s going to be choppy and lumpy. The combined swell energy is weak too, often sitting under 100 (38 to 191) – just not enough push for a decent wave. For a sheltered spot like this, you really need the wind to play nice, and it just isn’t.
There is one tiny glimmer. If you look way out to the end of the forecast, on Sunday the 27th of September, we might finally catch a break. The morning shows a little pulse of 4 ft swell coming from the east, with a period of 8 seconds, which is still pretty short. But the key thing here is the wind goes glassy – absolute zero. That’s rare and it would clean the place right up. The combined energy jumps up to 355 (moderate), so there’s some real juice in the water for a change. The water temp is around 83°, totally average for this time of year.
Still, this is a beginner-friendly spot and the optimum swell direction is northeast, while this is coming from the east, so it’s not perfect. And because it’s so far out, don’t bet the farm on it just yet. For now, it’s the only thing worth circling on the calendar. If you’re itching for a paddle, you might find a few knee-high lumps on Sunday the 27th morning, but don’t expect much else.
It’s a tough run for Big Wave Bay, no two ways about it. But that’s how it goes sometimes. Forecasts can change, so keep an eye on it.
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  | ||||||||||||||||||||
 kJ | 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 |
| kJ | 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 |
| kJ | 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 |
| kJ | 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 | — |
| kJ | — | 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.
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