Surf Forecasts:
Big Wave Bay surf forecast from 1 Sep 2026:
- Most powerful swell: Tuesday 1 Sep, 11PM (local time) - 4ft (1.2m), 5s period, NE swell with 77 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 1.2m 5s and forecast to arrive on Tuesday (Sep 01) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 10s period and expected on Tuesday (Sep 01) at 5PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Tue 1st Sep) | 4ft (1.2m) 5s |
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 Big Wave Bay has got cookin' for us. I'll be straight with you, the next week and a half is a real struggle. We're looking at a long, quiet spell before a glimmer of hope shows up deep in the forecast.
Right now, through the start of September, it's flat and messy. There’s barely a pulse in the water, with combined swell energy stuck in the doldrums (around 49 to 5). A few mornings have some glassy conditions, but with waves only 1ft to 1ft and a short period, it’s more of a lake than the ocean. It's not worth paddling out for. This lean stretch runs all the way through to the afternoon of September 13th.
Now, keep your eyes on Monday the 14th and Tuesday the 15th. That’s where things get interesting. A solid groundswell pushes in from the ESE, with a very long period of 14 seconds. On Monday afternoon, we’re looking at a clean 4ft swell, and the combined energy jumps right up (702). The wind is light and variable, so things will be clean. Tuesday morning still has some push at 4ft (378 energy), with clean conditions as the offshore breeze holds. This is the best on offer. Remember, with that long period, the waves will have real power and shape, but they might be a bit tricky at a beach break, tending to close out or jack up fast. If you can snag a peak, it'll be worth the wait.
The water temp is sitting at a balmy 84°F, which is bang on average for this time of year, so no wetsuit needed.
To be honest, before that Monday pulse, it's pretty bleak. The setup is so weak and small that this area is more interesting for kite surfers than paddle surfers right now. But that Monday-Tuesday window? That’s your chance. It's a long way out, so don't bet the farm on it, but it's the only real highlight in the whole 16-day window.
Rusty.
Short Range ForecastHeavy rain (total 69mm), heaviest during Tue morning. Warm (max 28°C on Tue afternoon, min 23°C on Wed night). Winds decreasing (fresh winds from the N on Tue night, light winds from the NNW by Thu night). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Fri night. Warm (max 29°C on Sun afternoon, min 24°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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) | ENE 4 | NE 5 | ENE 6 | ENE 5 | E 6 | E 6 | E 7 | E 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 5 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 49 | 56 | 58 | 5 | 7 | 3 | 8 | 7 | 15 | 27 | 27 | 26 | 27 | 26 | 14 | 14 | 14 | 12 | 6 | 1 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off | cross-off | glassy | cross-off | off | glassy | cross-on | cross-off |
High Tide | 10:36AM1.27m | 10:50PM1.51m | 11:17AM1.08m | 11:26PM1.62m | 12:01PM0.88m | 00:08AM1.69m | 12:54PM0.68m | 00:59AM1.71m | 2:02AM1.70m | 3:31AM1.69m | 8:48PM0.90m | ||||||||||
Low Tide | 5:20PM0.50m | 6:16AM0.35m | 5:44PM0.61m | 7:20AM0.34m | 6:00PM0.70m | 8:32AM0.33m | 2:38PM0.67m | 9:54AM0.30m | 11:18AM0.25m | 12:31PM0.18m | 10:23PM0.88m | ||||||||||
 |  |  |  | |  |  | |  |  | |  | | |  | | | |  | |  | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — |
mm | 33 | 2 | — | — | 2 | 18 | 9 | 3 | 2 | — | — | 8 | 2 | — | 2 | — | — | — | — | — | 2 |
Temp °C | 26 | 28 | 27 | 28 | 27 | 26 | 23 | 24 | 24 | 24 | 28 | 27 | 25 | 26 | 25 | 28 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 29 | 29 | 26 | 27 | 26 | 26 | 25 | 26 | 26 | 25 | 29 | 27 | 27 | 28 | 27 | 31 | 32 | 32 | 33 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 11 | S 11 | S 10 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SSW 7 | SSW 7 |
| kJ | 578 | 780 | 533 | 388 | 194 | 73 | 35 | 43 | 30 | 28 | 28 | 28 | 29 | 29 | 33 | 20 | 19 | 16 | 21 | 18 | 16 |
Swell 2 Height (m) Direction Period (s) | — | — | ENE 6 | ENE 5 | E 6 | E 6 | SE 7 | E 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | — | E 9 |
| kJ | — | — | 58 | 5 | 7 | 3 | 14 | 7 | 15 | 27 | 27 | 26 | 27 | 26 | 14 | 14 | 14 | 12 | 6 | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 6 | W 5 | W 5 | E 7 | W 5 | W 5 | WNW 5 | — | — | — | N 3 | — | — | — | S 9 | — | E 5 | E 9 |
| kJ | — | — | — | 1 | 1 | 2 | 8 | 1 | 1 | 2 | — | — | — | 1 | — | — | — | 7 | — | 1 | 2 |
Wind waves Height (m) Direction Period (s) | ENE 4 | NE 5 | N 4 | NNW 4 | N 4 | NNW 4 | NNW 4 | N 4 | N 3 | N 3 | — | — | N 3 | — | — | NNE 2 | — | — | — | — | — |
| kJ | 49 | 56 | 35 | 22 | 36 | 29 | 10 | 14 | 5 | 3 | — | — | 3 | — | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 581 | 581 | 581 | 581 | 581 | 161 | 740 | 740 | 144 | 144 | 683 | 144 | 144 | 889 | 581 | 1231 | 889 | 889 | 1427 | 670 | 670 |
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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