
Surf Forecasts:
Big Wave Bay surf forecast from 6 Sep 2026:
- Most powerful swell: Sunday 13 Sep, 2PM (local time) - 8ft (2.4m), 9s period, E swell with 875 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 2.4m 9s and forecast to arrive on Sunday (Sep 13) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Sunday (Sep 13) at 2AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 13th Sep) | 8ft (2.4m) 9s |
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’s on offer for the next couple of weeks. We’re focusing in on Big Wave Bay, and honestly, I tell ya, it’s a bit of a slow start. We’re looking at a real dry spell before anything even starts to look interesting.
The forecast starts with a whole lot of nothing. From Sunday the 6th right through to the afternoon of Friday the 12th, we’ve got basically no swell to speak of – just tiny dribbles of 0.3ft to 4ft. The wind is a mess, mostly cross-onshore or just plain onshore, and the energy is next to nothing (2 to 122). It’s a dead period. You’d be wasting your time paddling out.
Then, things get a bit wild. On Sunday the 13th, we get a sudden spike. The morning sees a 7ft swell from the ESE, with a 10-second period, and the combined energy jumps to 817. That’s a solid dose of power. The wind is a clean cross-offshore from the N, which is a huge plus. The afternoon bumps it up to 7ft, but the period drops to 8 seconds and the wind gets a bit stronger. This is going to be a proper, powerful swell. However, with waves over 7ft, this is strictly for the experienced crew. The size and the clean wind make it the standout, but it’s not a day for beginners.
The rest of the week is a bit of a mixed bag. Monday the 14th gets messy with strong cross-onshore winds and lumpy conditions, despite the 8ft swell. That’s more of a kitesurfing day than a clean surfing day. Tuesday the 15th is small and weak. Then Wednesday the 16th morning is a real tease – glassy conditions with a 6ft swell, but it’s a short 6-second period from the E. The energy is moderate (222). It’s surfable, but pretty ordinary. The afternoon is a bit cleaner with a cross-offshore breeze, but the swell is dropping.
After that, it fades away again. From Thursday the 17th onwards, we’re back to small, weak, and choppy swells with onshore winds. The energy drops back to double digits and the whole thing just fizzles out.
So, the only real standout for the whole 16 days is Sunday the 13th. The clean, cross-offshore wind combined with that 7ft+ ESE groundswell is the best on offer. The water temp is sitting at 84°, which is bang on average for this time of year – no surprises there. Expect crowds at Big Wave Bay, it’s a popular spot, and when it’s good, everyone knows it.
For the rest of the window, you’re better off finding a different hobby for a while. Keep your eyes on the charts, though. It tends not to stay this quiet forever.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 29°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Warm (max 30°C on Thu afternoon, min 24°C on Thu night). Winds increasing (light winds from the NE on Wed morning, fresh winds from the NNE by Thu night). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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) | E 9 | E 11 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | ENE 3 | E 5 | E 5 | E 6 | E 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 |
Wave Graph | |||||||||||||||||||||
2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 34 | 73 | 85 | 205 | 220 | 225 | 142 | 113 | 122 | 94 | 117 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | on | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:31AM1.69m | 8:48PM0.90m | 5:34AM1.71m | 9:04PM0.94m | 6:55AM1.74m | 9:23PM0.98m | 7:53AM1.73m | 9:42PM1.05m | 8:41AM1.66m | 9:58PM1.14m | 9:24AM1.54m | 10:05PM1.25m | |||||||||
Low Tide | 11:18AM0.25m | 12:31PM0.18m | 10:23PM0.88m | 1:24PM0.13m | 11:46PM0.80m | 2:05PM0.13m | 00:53AM0.69m | 2:38PM0.17m | 1:52AM0.57m | 3:08PM0.24m | 2:47AM0.47m | 3:35PM0.33m | 3:38AM0.38m | ||||||||
6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | 2 | 1 | — | — | 1 | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | 13 | 8 |
Temp °C | 28 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 28 | 27 | 30 | 26 | 28 | 29 | 27 | 29 | 25 | 24 |
Feels °C | 32 | 33 | 32 | 33 | 33 | 33 | 32 | 32 | 31 | 30 | 27 | 29 | 25 | 28 | 21 | 26 | 26 | 24 | 27 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 8 | SSW 7 | SSW 7 | SSW 7 | E 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 |
44 | 43 | 64 | 48 | 45 | 46 | 42 | 28 | 28 | 29 | 18 | 16 | 18 | 205 | 220 | 225 | 142 | 113 | 122 | 94 | 117 | |
Swell 2 Height (m) Direction Period (s) | — | E 11 | E 10 | E 7 | E 6 | E 9 | E 6 | E 5 | — | E 11 | E 11 | E 11 | — | SSW 7 | SSW 9 | SSW 8 | S 8 | S 7 | S 9 | S 8 | ESE 12 |
— | 2 | 2 | 1 | 1 | 2 | 1 | 1 | — | 2 | 2 | 2 | — | 10 | 15 | 6 | 4 | 1 | 6 | 5 | 96 | |
Swell 3 Height (m) Direction Period (s) | E 9 | — | — | E 10 | E 10 | — | E 9 | E 9 | E 9 | E 11 | — | — | — | — | SSW 9 | — | — | S 9 | — | — | S 7 |
2 | — | — | 2 | 2 | — | 2 | 2 | 2 | 2 | — | — | — | — | 8 | — | — | 2 | — | — | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ENE 3 | E 5 | E 5 | E 6 | — | N 4 | N 4 | N 4 | N 4 | N 4 | NNE 4 | N 4 |
— | — | — | — | — | — | — | — | — | 3 | 34 | 73 | 85 | — | 6 | 18 | 14 | 14 | 21 | 19 | 46 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 359 | 670 | 619 | 619 | 671 | 656 | 670 | 671 | 803 | 1433 | 804 | 803 | 22 | 161 | 161 | 803 | 161 | 6 | 581 | 161 | 161 |
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.










