
Surf Forecasts:
Big Wave Bay surf forecast from 7 Sep 2026:
- Best quality surf: Friday 11 Sep, 5AM (local time) - 5.5ft (1.7m), 7s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 13 Sep, 11PM (local time) - 8ft (2.5m), 10s period, E swell with 1,403 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 5AM (local time) - 5.5ft (1.7m), 7s 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 5AM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 1.5m and 7s. 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 2.5m 10s and forecast to arrive on Sunday (Sep 13) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Sep 14) at 8AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 11th Sep) | 5.5ft (1.7m) 7s |
| Best Surf | 5AM (Fri 11th Sep) | 5.5ft (1.7m) 7s |
| Most Powerful | 11PM (Sun 13th Sep) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let’s stare at Big Wave Bay for a bit. I’ll be straight with you – this is a tough run. The whole 16-day window looks bleak, with a big gap of nothing worthwhile at the start and then a stretch where the ocean just turns angry and messy.
We kick off with nothing. Monday the 7th through to Wednesday the 9th are a write-off – tiny swell, poor conditions, just forget it. You’d be better off cleaning the wax off your board. The water’s sitting at 83° F, which is pretty much spot on for this time of year, so that’s the only thing that’s normal.
Thursday the 10th sees a pulse of energy come through, but it’s all wrong. The swell gets up to 4 ft from the east, but it’s short period, and the wind is a cross/onshore mess. The combined energy hits 125 (moderate) but it’s not doing us any favours – it’s just choppy and ugly.
Then Friday the 11th is the only day that’s even worth a look. Morning session: 4 ft east swell, period 8 seconds, with a cross-offshore breeze from the NNE. The wind cleans it up, and the energy is moderate at 186. It’s surfable, but it’s nothing to write home about. The afternoon gets bigger, 5 ft, but the wind picks up to 16 mph and it’s still cross-off. It’s a bit more grunty, but still very ordinary. If you’re desperate, Friday morning is your best bet.
After that, it gets worse. Saturday the 12th drops off, and Sunday the 13th brings a bit of a bump in the afternoon – 4 ft from the ESE with a 12-second period, giving it a bit of groundswell feel. The energy is strong at 424, but the wind is howling at 19 mph from the NNE, making it messy. This is expert territory, and even then, it’s not clean.
From Monday the 14th onward, it’s a full-on storm show. The swell gets huge, up to 12 ft on the 16th, but it’s all short-period, onshore junk. The energy readings are massive (over 2000 on the 14th and 16th), but the wind is brutal – 22 to 28 mph cross and cross-onshore. This is not surfable for a paddle surfer. For the kite surfers out there, the setup on the 14th through the 16th with that strong cross-shore wind and big, messy swell might be interesting, but for a standard surfer, stay on the beach.
There’s a gap of nothing from the 17th to the 19th, with some tiny swell returning on the 19th and 20th, but it’s all onshore, weak, and forgettable. Honestly, the best advice I can give for Big Wave Bay is to wait. The near-term is poor, the long-range is a stormy mess. It’s not your time.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon morning. Warm (max 29°C on Mon morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Thu night. Warm (max 31°C on Sat afternoon, min 25°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 9 | E 11 | E 4 | E 4 | E 5 | E 6 | E 7 | E 7 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 12 | ESE 10 |
Wave Graph | |||||||||||||||||||||
2 | 2 | 2 | 2 | 2 | 2 | 9 | 21 | 60 | 123 | 183 | 260 | 186 | 377 | 230 | 189 | 127 | 101 | 130 | 422 | 502 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 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 | 10:03AM1.38m | 10:03PM1.37m | ||||||||
Low Tide | 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 | 4:00PM0.43m | 4:27AM0.33m | |||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | |
mm | 1 | — | — | — | — | — | — | — | 1 | 1 | 1 | 3 | — | — | — | — | — | — | 1 | 4 | 11 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 30 | 28 | 28 | 31 | 28 | 27 | 28 | 26 |
Feels °C | 33 | 33 | 33 | 32 | 31 | 31 | 29 | 28 | 28 | 29 | 30 | 29 | 28 | 28 | 27 | 27 | 30 | 26 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 8 | SSW 7 | SSW 7 | SSW 8 | SSW 7 | SSW 9 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 12 | ESE 10 |
48 | 45 | 46 | 42 | 28 | 26 | 29 | 18 | 17 | 19 | 11 | 8 | 186 | 181 | 230 | 189 | 127 | 101 | 130 | 422 | 502 | |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 6 | E 9 | E 9 | E 9 | E 11 | E 11 | E 11 | E 10 | — | S 9 | SSW 8 | SSW 8 | S 7 | S 9 | S 8 | SE 9 | SE 8 | SE 7 | SE 8 |
1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | — | 7 | 6 | 6 | 4 | 6 | 1 | 3 | 2 | 2 | 3 | |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | E 9 | E 9 | E 11 | E 11 | — | — | — | — | — | — | N 3 | — | E 17 | S 10 | S 7 | S 12 | S 8 | S 7 |
2 | 2 | 2 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | 1 | — | 6 | 2 | 1 | 3 | 1 | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | E 4 | E 4 | E 5 | E 6 | E 7 | E 7 | NNE 3 | E 9 | NNE 3 | N 4 | NNE 3 | N 4 | N 4 | NNE 4 | N 3 |
— | — | — | — | — | — | 9 | 21 | 60 | 123 | 183 | 260 | 3 | 377 | 1 | 13 | 3 | 9 | 27 | 11 | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 619 | 656 | 656 | 670 | 671 | 656 | 803 | 804 | 803 | 144 | 826 | 22 | 0 | 40 | 144 | 877 | 272 | 161 | 1043 | 803 | 581 |
Best forecast wave conditions in Hong Kong | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
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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.










