Surf Forecasts:
Big Wave Bay surf forecast from 11 Sep 2026:
- Best quality surf: Saturday 12 Sep, 8AM (local time) - 7.5ft (2.3m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 8AM (local time) - 7.5ft (2.3m), 8s period, E swell with 675 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 8AM (local time) - 7.5ft (2.3m), 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 Saturday (Sep 12) at 8AM. The primary swell is predicted to be 2.3m and 8s period with a secondary swell of 1.7m and 8s. 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 2.3m 8s and forecast to arrive on Saturday (Sep 12) at 8AM. 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 9s period and expected on Sunday (Sep 13) at 5PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 12th Sep) | 7.5ft (2.3m) 8s |
| Best Surf | 8AM (Sat 12th Sep) | 7.5ft (2.3m) 8s |
| Most Powerful | 8AM (Sat 12th Sep) | 7.5ft (2.3m) 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’s on the cards for our local stretch. Honestly, it’s a tough outlook. For the next week and more, there’s just nothing worth paddling out for. The wind is relentless out of the east, mostly cross-onshore, and the swell is weak and short-period, making for nothing but poor, choppy conditions. This is a long, quiet run, so if you were hoping for a surf, you might want to plan something else for a while. The water temperature sits at 84°F which is about average for this time of year, so at least you’ll be warm if you go for a swim.
We’ve got a gap of poor surf that stretches for over a week, right up until the 20th of September. On the Sunday morning (20th September) there’s a moment where the wind goes completely glassy, but with a tiny swell of only 0.7ft out of the ESE, it’s more of a pond than a wave. The afternoon of that Sunday is the only time in the whole window that even hints at being surfable – the energy bumps up a bit (104), with a very long period swell of 18 seconds coming from the SE, but the height is still just 1ft. It’s not really a standout, but if you’re desperate, a long-period groundswell like that over a very long period can put a little bit of shape into a point break or reef, and right there at Big Wave Bay, it’s a sheltered spot. The wind stays glassy into the afternoon. It’s tiny and the crowd factor is only *sometimes*, so you’d have it to yourself, but it’s barely a wave.
Don’t get your hopes up for the following days either. The swell fades back to nothing with more onshore wind. A blank run like this is pretty normal for the area when the trades lock in. Stay tuned, forecasts can change.
- Rusty
Short Range ForecastHeavy rain (total 24mm), heaviest during Sat night. Warm (max 29°C on Sat afternoon, min 26°C on Fri night). Winds decreasing (strong winds from the E on Sat night, light winds from the ENE by Sun night). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 28°C on Mon afternoon, min 27°C on Mon night). Winds increasing (light winds from the SSW on Mon afternoon, fresh winds from the ENE by Wed night). | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 8 | E 7 | E 8 | E 8 | E 7 | E 7 | E 6 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 7 | E 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 205 | 475 | 593 | 270 | 620 | 248 | 113 | 31 | 33 | 41 | 30 | 62 | 60 | 90 | 97 | 47 | 139 | 153 | 145 | 164 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:58PM1.14m | 9:24AM1.54m | 10:05PM1.25m | 10:03AM1.38m | 10:03PM1.37m | 10:35AM1.20m | 10:07PM1.48m | 10:55AM1.02m | 10:23PM1.57m | 11:05AM0.88m | 10:49PM1.61m | 11:20AM0.76m | 11:21PM1.62m | |||||||
Low Tide | 3:08PM0.24m | 2:47AM0.47m | 3:35PM0.33m | 3:38AM0.38m | 4:00PM0.43m | 4:27AM0.33m | 4:24PM0.53m | 5:16AM0.32m | 4:46PM0.62m | 6:06AM0.34m | 5:03PM0.70m | 6:59AM0.38m | ||||||||
 |  | |  | |  | | | | |  |  | | | | |  | | | | |
 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — |
mm | — | 2 | — | 1 | 12 | 3 | 1 | 3 | 2 | 3 | 3 | — | — | 2 | 2 | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 29 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 28 | 29 | 27 | 28 | 25 | 26 | 28 | 30 | 31 | 32 | 32 | 30 | 30 | 30 | 27 | 28 | 27 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | E 8 | S 7 | E 8 | S 9 | S 8 | S 8 | S 9 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | ESE 8 | SSW 7 | SW 6 | S 6 | S 6 |
| kJ | 205 | 1 | 284 | 1 | 1 | 76 | 184 | 138 | 82 | 92 | 67 | 54 | 39 | 23 | 10 | 12 | 4 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | S 8 | E 16 | S 8 | — | — | E 15 | E 14 | E 6 | E 10 | E 10 | E 14 | E 13 | E 13 | E 13 | E 13 | SSW 7 | — | — | E 11 | E 11 |
| kJ | 4 | 5 | 1 | — | — | 4 | 4 | 31 | 2 | 2 | 4 | 4 | 3 | 3 | 3 | 9 | — | — | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 14 | E 14 | E 14 | — | E 13 | E 13 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | 4 | 4 | — | 3 | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | E 7 | E 8 | E 8 | E 7 | E 7 | E 6 | — | E 5 | E 6 | E 6 | E 6 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 7 | E 6 |
| kJ | — | 475 | 593 | 270 | 620 | 248 | 113 | — | 33 | 41 | 30 | 62 | 60 | 90 | 97 | 47 | 139 | 153 | 145 | 164 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 889 | 161 | 804 | 804 | 803 | 804 | 826 | 161 | 40 | 6 | 6 | 144 | 581 | 161 | 1056 | 803 | 161 | 928 | 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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