Surf Forecasts:
Big Wave Bay surf forecast from 22 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 11PM (local time) - 3.5ft (1.0m), 5s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 2PM (local time) - 1.5ft (0.4m), 16s period, ESE swell with 85 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 11PM (local time) - 3.5ft (1.0m), 5s 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 Tuesday (Aug 25) at 11PM. The primary swell is predicted to be 1.0m and 5s period with a secondary swell of 0.3m and 15s. 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 0.4m 16s and forecast to arrive on Tuesday (Aug 25) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 9s period and expected on Sunday (Aug 23) at 2AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 25th Aug) | 3.5ft (1.0m) 5s |
| Best Surf | 11PM (Tue 25th Aug) | 3.5ft (1.0m) 5s |
| Most Powerful | 2PM (Tue 25th Aug) | 1.5ft (0.4m) 16s |
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 the next couple of weeks. Gotta be straight with you, it’s a grim stretch for paddle surfing. The whole 16-day window is basically one long quiet spell. We’re looking at a massive gap of zero real surf action from now all the way through to the end of the period. There’s no standout session, no hidden gem – just flat, weak conditions with hardly any energy in the water. The combined swell energy barely ticks over (2 to 6) for the first week, and even when it nudges up a bit early in September, the wind is just ugly.
For the first week or so, from Sunday the 23rd of August right through to Sunday the 30th, we’ve got nothing but tiny waves—0.3ft to 0.7ft—with junk periods. Winds are mostly cross or cross-off, but with such tiny swell, it’s a total washout. The water temp is about average for this time of year, nothing wild to report there.
Things get a bit more active from Monday the 31st of August into the first week of September, but it’s all bad news for a surfer. Swell picks up to 3ft to 3ft from the east, with combined energy finally climbing into triple digits on the 2nd of September (216). Problem is, we get hammered by strong to near-gale winds from the ENE, creating a messy, choppy, cross-onshore mess. This setup at a sheltered beach break is honestly more interesting for the kite crowd than for anyone with a shortboard. The period is short, mostly 7 to 8 seconds, so it’s weak, bumpy, and sloppy.
There’s a tiny flicker of hope on Saturday the 5th of September morning. We’ve got glassy conditions with a light offshore wind and 2ft east swell, period around 10 seconds. Combined energy is moderate (92). For Big Wave Bay, this is probably the best we get, but with such small waves and the spot being sheltered, it’s still a poor surf day for the area. Sunday the 6th is flat again with glassy 1ft dribble.
Honestly, for this spot, a blank run like this is pretty normal when the wind and swell don’t line up. Forecasts can change, but right now, there’s nothing to get excited about. Leave the board at home and check back later.
Rusty.
Short Range ForecastHeavy rain (total 41mm), heaviest during Mon night. Warm (max 31°C on Mon morning, min 28°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Tue night. Warm (max 33°C on Fri afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 11 | E 11 | E 11 | E 10 | E 14 | E 14 | SE 14 | ESE 17 | ENE 4 | E 5 | ENE 5 | ESE 12 | ENE 4 | E 10 | ENE 6 | E 14 | E 10 | E 11 | E 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 2 | 2 | 2 | 2 | 4 | 4 | 8 | 27 | 34 | 49 | 37 | 14 | 4 | 7 | 3 | 4 | 2 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-off | off | cross-off | cross-off |
High Tide | 2:44AM1.50m | 4:11AM1.52m | 9:28PM0.88m | 5:59AM1.57m | 9:45PM0.88m | 6:57AM1.64m | 10:03PM0.89m | 7:37AM1.68m | 10:17PM0.92m | 8:13AM1.69m | 10:19PM0.98m | ||||||||
Low Tide | 12:20PM0.43m | 1:14PM0.36m | 10:57PM0.86m | 1:54PM0.29m | 00:07AM0.80m | 2:28PM0.24m | 1:04AM0.73m | 2:59PM0.21m | 1:56AM0.65m | 3:30PM0.21m | 2:46AM0.57m | ||||||||
 |  |  | | | | | | | | |  | | |  |  | | | | |
 | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 6:49 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — |
mm | 3 | 1 | — | 10 | 1 | 4 | 14 | 6 | 2 | 11 | 5 | — | 2 | — | — | — | — | — | 5 |
Temp °C | 29 | 30 | 30 | 29 | 31 | 30 | 29 | 28 | 30 | 29 | 27 | 28 | 28 | 28 | 29 | 29 | 32 | 33 | 31 |
Feels °C | 30 | 33 | 33 | 33 | 35 | 33 | 32 | 32 | 34 | 33 | 33 | 31 | 30 | 30 | 32 | 34 | 34 | 35 | 34 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 8 | E 11 | S 8 | S 8 | SSW 8 | S 8 | S 8 | S 9 | S 9 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 10 | S 9 | S 9 |
| kJ | 348 | 235 | 2 | 223 | 239 | 290 | 195 | 230 | 269 | 181 | 314 | 241 | 185 | 241 | 282 | 215 | 307 | 241 | 240 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 9 | ESE 17 | ESE 16 | ESE 15 | ESE 12 | ESE 12 | SE 10 | E 9 | E 9 | E 14 | E 10 | E 11 | E 11 |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 27 | 25 | 42 | 15 | 14 | 4 | 2 | 2 | 4 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 14 | E 14 | SE 14 | E 8 | SE 12 | ESE 18 | ESE 16 | E 7 | — | E 10 | E 11 | E 14 | — | — | — |
| kJ | — | — | — | — | 4 | 4 | 8 | 6 | 6 | 31 | 24 | 1 | — | 7 | 2 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 9 | — | S 8 | SSW 8 | — | — | SSW 8 | — | ENE 4 | E 5 | ENE 5 | E 4 | ENE 4 | ENE 3 | ENE 6 | — | — | — | W 3 |
| kJ | 477 | — | 228 | 336 | — | — | 284 | — | 34 | 49 | 37 | 13 | 4 | 2 | 3 | — | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 40 | 43 | 43 | 40 | 6 | 40 | 6 | 144 | 43 | 40 | 40 | 683 | 161 | 272 | 581 | 40 | 6 | 6 | 40 |
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