Surf Forecasts:
Big Wave Bay surf forecast from 4 Sep 2026:
- Most powerful swell: Friday 11 Sep, 2AM (local time) - 6ft (1.9m), 7s period, E swell with 358 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 1.9m 7s and forecast to arrive on Friday (Sep 11) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 8s period and expected on Friday (Sep 04) at 2PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Fri 11th Sep) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
G’day, Rusty here. I’ve had a look at the next 16 days for Big Wave Bay, and it’s a tough one. There’s a big dry spell right off the bat—nothing worth a paddle from now until the morning of Thursday the 12th of September. The waves are tiny, under 2 feet, with energy readings below 100, and it’s all “poor surf conditions.” The first time you’ll see anything rideable is the afternoon of Thursday the 12th.
The only real highlight is Saturday the 14th of September. Come morning, Big Wave Bay will have a 5 ft swell from the East with a 7-second period—nothing special on the period, but the combined energy is 257 (moderate). The wind is cross-offshore from the North at 6 mph, which will keep the surface clean. Water temp is 84°, right on average for this time of year. The afternoon holds the same 5 ft and 258 energy, still cross-off and tidy. It’s not firing, just surfable, but it’s the best on offer. The break is sheltered and can get crowded, so expect some lineup company.
Before that, Thursday the 12th morning sees 4 ft from the East at 9 seconds, 194 energy, with light cross-off breezes—again, just surfable. Sunday the 13th morning is similar at 4 ft and 165 energy. None of these are standouts.
After the 14th, it turns ugly. From Monday the 15th, the wind swings cross-onshore and builds, hitting 28 mph by Thursday the 17th. The swell stays around 4 ft, but with that wind, it’ll be choppy and messy—more of a kite-surfing setup than a paddle session. Energy drops under 100 again from the 16th, so it’s weak. There’s no second chance in this window.
Bottom line: it’s a bleak run. The 14th is your best shot, but don’t expect much. This area can go flat like this—it’s just one of those stretches.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sun night. Warm (max 29°C on Fri afternoon, min 26°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Tue morning. Warm (max 30°C on Mon afternoon, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 10 | E 7 | E 10 | E 6 | ENE 4 | ENE 4 | E 4 | E 4 | NE 3 | E 3 | ESE 4 | ENE 4 | E 4 | E 4 | E 4 | E 4 | E 5 | E 6 | E 6 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 2 | 1 | 2 | 2 | 3 | 11 | 5 | 3 | 2 | 6 | 5 | 10 | 11 | 7 | 10 | 17 | 41 | 86 | 74 | 358 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | glassy | glassy | cross-off | cross-on | cross-on | glassy | cross | on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-off |
High Tide | 12:54PM0.68m | 00:59AM1.71m | 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 | ||||||||||
Low Tide | 8:32AM0.33m | 2:38PM0.67m | 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 | |||||||||
 | |  |  | |  | | | |  | |  | | | | |  | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — |
mm | — | — | — | 1 | 3 | 5 | — | 2 | 6 | 3 | 1 | 5 | 7 | 1 | — | — | — | — | — | — | 2 |
Temp °C | 27 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 29 | 29 | 30 | 29 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 28 |
Feels °C | 31 | 30 | 29 | 33 | 34 | 32 | 32 | 33 | 33 | 33 | 34 | 32 | 30 | 30 | 30 | 30 | 30 | 30 | 27 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | SSW 7 | SSW 7 | SSW 8 | SSW 7 | SSW 7 |
| kJ | 60 | 43 | 39 | 40 | 41 | 41 | 44 | 43 | 49 | 46 | 42 | 48 | 42 | 29 | 29 | 28 | 17 | 17 | 19 | 18 | 11 |
Swell 2 Height (m) Direction Period (s) | NE 9 | E 8 | E 7 | E 10 | E 6 | ENE 4 | E 9 | E 9 | E 4 | E 6 | E 10 | E 10 | E 9 | E 9 | E 9 | E 11 | E 11 | E 11 | E 10 | E 10 | S 9 |
| kJ | 3 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 3 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 7 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 10 | — | E 7 | — | E 10 | — | — | E 10 | E 10 | — | — | — | E 12 | — | — | E 9 | — | — | — | — |
| kJ | 6 | 2 | — | 1 | — | 2 | — | — | 2 | 2 | — | — | — | 3 | — | — | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 2 | WNW 3 | WNW 3 | — | — | — | ENE 4 | E 4 | — | NE 3 | E 3 | ESE 4 | ENE 4 | E 4 | E 4 | E 4 | E 4 | E 5 | E 6 | E 6 | E 7 |
| kJ | 1 | 2 | 4 | — | — | — | 11 | 5 | — | 2 | 6 | 5 | 10 | 11 | 7 | 10 | 17 | 41 | 86 | 74 | 358 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1053 | 619 | 619 | 683 | 670 | 619 | 619 | 671 | 619 | 670 | 670 | 656 | 670 | 671 | 820 | 1433 | 804 | 826 | 161 | 670 | 161 |
Best forecast wave conditions in Hong Kong | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Wave Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest