Surf Forecasts:
Big Wave Bay surf forecast from 5 Sep 2026:
- Best quality surf: Friday 11 Sep, 2AM (local time) - 3.5ft (1.1m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 8PM (local time) - 6ft (1.8m), 9s period, E swell with 476 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 2AM (local time) - 3.5ft (1.1m), 8s period with E swell.
Best Forecast Surf Conditions for Big Wave Bay this week:
The surf forecast for Big Wave Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 2AM. The primary swell is predicted to be 1.1m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Big Wave Bay in the next 16 days are 1.8m 9s and forecast to arrive on Thursday (Sep 10) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 8s period and expected on Saturday (Sep 05) at 2PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 11th Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 2AM (Fri 11th Sep) | 3.5ft (1.1m) 8s |
| Most Powerful | 8PM (Thu 10th Sep) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Right then, let's talk about Big Wave Bay. If I'm bein' straight with you, lookin' at the next 16 days... it's a tough run. The water's sitting at a warm 84°, which is pretty much bang on average for this time of year, so that's nothin' to write home about.
From now through to around the 13th of September, you're looking at tiny dribble. We're talkin' 0.3 ft to at most 4 ft, but the wind is just not playin' ball. Mornin' of the 6th and evenin' of the 11th offer a bit of clean glass or cross-offshore, but with barely a ripple on the surface, there's just no push. The combined energy is barely a whisper, you're lookin' at values like 2, 4, or 20 (weak energy). It's a full-on, flat spell.
Now, there is a pulse of a bit more size that shows up on the 10th with a 4 ft swell from the east, but that's hammered by a solid 16 mph cross-shore wind, makin' it choppy and ugly. Not one for the log.
The real interesting bit, and the only chance for a proper session, looks to be Sunday the 14th and Monday the 15th. Not for the faint-hearted, mind. We get a jump to 7 ft from the east on the 14th, with a combined energy of 435 (moderate energy) – that's the biggest push of the window. But here's the kicker: that's a short period, 7 to 8 seconds, meaning it's not got the grunt or the shape of a proper groundswell. Add to that a strong cross-onshore wind bangin' in at 19 mph, and you've got a lumpy, blown-out mess that's genuinely only for experienced surfers.
Given the constant cross-onshore or strong winds on any day with chest-high surf, the setup here at Big Wave Bay looks far more interesting for kite surfing than for paddle surfing.
To be brutally honest, there's no standout day in this 16-day run that I'd get excited about. The surf is either non-existent or blown to bits. Keep an eye on it, because things can change, but for now, it's a write-off.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat afternoon, min 27°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Warm (max 29°C on Tue morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 10 | E 10 | E 9 | E 9 | E 11 | E 11 | E 10 | E 10 | E 9 | E 12 | E 9 | E 11 | E 11 | E 4 | E 5 | E 6 | E 8 | E 8 | E 8 | E 9 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 18 | 73 | 74 | 234 | 157 | 124 | 122 | 122 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | glassy | glassy | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 2:02AM1.70m | 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 | ||||||||||
Low Tide | 9:54AM0.30m | 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 | |||||||||
 | |  |  |  |  | | |  | | | | | | | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — |
mm | — | — | — | — | 3 | 1 | 3 | 1 | — | — | — | — | — | — | 3 | — | 3 | — | — | — | — |
Temp °C | 28 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 27 | 29 | 27 | 28 | 30 | 28 |
Feels °C | 32 | 32 | 31 | 32 | 32 | 32 | 33 | 33 | 31 | 32 | 32 | 31 | 29 | 28 | 28 | 25 | 29 | 25 | 27 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | E 8 | E 8 | E 9 | E 9 |
| kJ | 53 | 40 | 41 | 44 | 44 | 49 | 61 | 43 | 66 | 42 | 28 | 25 | 27 | 17 | 20 | 19 | 18 | 157 | 124 | 122 | 122 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | — | E 11 | E 11 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 11 | E 11 | E 11 | E 10 | — | SSW 8 | SSW 8 | SSW 8 | S 9 |
| kJ | 2 | 2 | 2 | — | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | — | 13 | 12 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | E 9 | — | — | E 10 | E 5 | — | E 12 | — | E 11 | E 11 | — | — | — | — | — | — | — | S 7 |
| kJ | 2 | 2 | 2 | 2 | — | — | 2 | 1 | — | 3 | — | 2 | 2 | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | E 6 | — | — | — | — | — | — | E 4 | E 5 | E 6 | E 8 | NNE 3 | N 4 | NNE 4 | N 4 |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 18 | 73 | 74 | 234 | 3 | 9 | 10 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 683 | 671 | 619 | 619 | 671 | 619 | 619 | 672 | 671 | 670 | 671 | 832 | 803 | 826 | 803 | 40 | 40 | 0 | 40 | 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.
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