
Surf Forecasts:
Big Wave Bay surf forecast from 7 Aug 2026:
- Most powerful swell: Monday 10 Aug, 8PM (local time) - 2.5ft (0.7m), 4s period, SW swell with 20 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 0.7m 4s and forecast to arrive on Monday (Aug 10) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 9s period and expected on Wednesday (Aug 12) at 5AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Mon 10th Aug) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you—this stretch ahead is a tough one for Big Wave Bay. I’ve scanned the whole sixteen days, and there’s just no surf on offer that’s worth paddling out for. It’s looking like a proper blank run, and for this spot, that’s not unusual when the swell window shuts down. The good news is the bay is fairly consistent when it does get waves, so a run like this tends not to last forever. Forecasts can flip, so keep an eye on it, but don’t get your hopes up.
We start off with a flat, clean Saturday morning (8 August). Water’s sitting at 83°, which is about normal for this time of year—nothing weird going on there. Light west-northwest breeze, clear skies, but zero swell. You’d be staring at a lake. That flatness carries through Sunday and Monday, with only tiny 0.3ft easterly slop showing up—not even enough to tickle the inside. The wind stays light and mostly offshore or cross-off, so it’s glassy, but there’s nothing to ride.
Tuesday the 11th gets a tiny bump in the afternoon, 2ft from the southwest with a 3-second period—that’s pure wind chop, short and crumbly. Not surfable. The rest of the week stays the same story: nothing but dribbles. By the 15th and 16th, we’re back to flat, with the wind shifting onshore from the southeast on Sunday—still no waves.
The next week picks up a little in size but not in quality. From the 19th onwards, we see some small pulses—4ft on Wednesday afternoon, 4ft on Friday the 21st—but the period is terrible. Four to six seconds at best. That’s short-period windswell, chopped-up and weak. The energy readings are low to moderate at best—like 65, 86, 101—so there’s nothing behind it. And the wind turns ugly: fresh to near-gale cross-shore and cross-on, especially on Friday with 31 mph winds and thunderstorms. That’s not surfing conditions; that’s a washing machine.
Saturday the 22nd and Sunday the 23rd keep the onshore flow going, with 3ft to 4ft of messy, short-period slop. The energy numbers climb a bit (127 on Sunday), but it’s all wind-driven junk. There’s no swell direction that matches what this bay needs, and the sheltered setup just can’t do anything with this kind of wind.
So here’s the bottom line: there are no good surf options in this entire 16-day window. The one thing I’ll say is that the spot itself is fairly consistent when it does get waves, so when this pattern breaks, it should come back. But right now? Save your gas, maybe go for a paddle, but don’t expect a wave. For anyone thinking about it—with this much onshore wind and chop, Big Wave Bay (Big-Wave-Bay) looks more like a kiteboarding playground than a surf break.
Stay patient. Rusty.
Short Range ForecastMostly dry. Warm (max 34°C on Sun afternoon, min 30°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu night. Warm (max 32°C on Tue afternoon, min 29°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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) | SSW 7 | E 14 | E 14 | E 13 | E 13 | E 13 | E 12 | E 12 | SSW 9 | E 14 | SW 3 | E 12 | S 9 | E 11 | SSW 9 | E 10 | SSW 9 | S 8 | S 8 | SSW 9 | S 8 |
Wave Graph | |||||||||||||||||||||
0 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 0 | 4 | 5 | 3 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | cross |
High Tide | 3:52AM1.76m | 9:23PM0.83m | 5:16AM1.83m | 9:47PM0.85m | 6:37AM1.90m | 10:14PM0.86m | 7:42AM1.94m | 10:40PM0.88m | 8:36AM1.92m | 11:05PM0.93m | 9:22AM1.83m | 11:27PM1.00m | |||||||||
Low Tide | 11:23AM0.29m | 12:38PM0.16m | 10:09PM0.83m | 1:42PM0.06m | 11:32PM0.81m | 2:34PM-0.00m | 00:42AM0.76m | 3:17PM-0.01m | 1:44AM0.68m | 3:55PM0.04m | 2:43AM0.61m | 4:27PM0.12m | 3:39AM0.56m | ||||||||
5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — | 4 | 1 | — | 1 |
Temp °C | 31 | 32 | 31 | 33 | 34 | 31 | 31 | 32 | 31 | 31 | 32 | 30 | 31 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 29 |
Feels °C | 35 | 36 | 35 | 35 | 36 | 35 | 32 | 33 | 34 | 33 | 33 | 32 | 33 | 32 | 32 | 33 | 32 | 32 | 34 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 8 | SSW 8 | SSW 8 | S 9 | SSW 8 | SSW 8 | S 10 | SSW 9 | S 10 | S 9 | S 9 | S 9 | E 11 | — | S 9 | — | S 8 | S 8 | SSW 9 | S 8 |
55 | 94 | 94 | 118 | 169 | 125 | 92 | 33 | 169 | 192 | 168 | 194 | 256 | 2 | — | 225 | — | 169 | 173 | 380 | 161 | |
Swell 2 Height (m) Direction Period (s) | — | E 14 | E 14 | E 13 | N 3 | E 13 | — | E 12 | — | E 14 | E 13 | E 12 | — | — | — | E 10 | — | — | — | — | — |
— | 4 | 4 | 4 | 2 | 3 | — | 3 | — | 4 | 3 | 3 | — | — | — | 2 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 10 | E 13 | — | E 12 | E 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 2 | 4 | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SW 2 | — | N 3 | — | — | SW 8 | SSW 9 | SSW 9 | — | SW 3 | — | — | SSW 9 | SSW 9 | — | SSW 9 | — | — | S 9 | — |
— | 2 | — | 5 | — | — | 59 | 186 | 273 | — | 5 | — | — | 308 | 232 | — | 270 | — | — | 257 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 581 | 581 | 40 | 6 | 40 | 6 | 144 | 40 | 6 | 6 | 813 | 40 | 822 | 683 | 40 | 43 | 683 | 43 | 43 | 683 | 43 |
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.











