
Surf Forecasts:
Big Wave Bay surf forecast from 30 Jul 2026:
- Most powerful swell: Friday 31 Jul, 5PM (local time) - 5ft (1.5m), 6s period, ESE swell with 141 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 1.5m 6s and forecast to arrive on Friday (Jul 31) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Saturday (Aug 01) at 8PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Fri 31st Jul) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Right, wanderin' in here. Let’s have a look at what’s on the table for Big Wave Bay. The short story is: it’s a bleak stretch ahead. Across the entire 16-day window, from the 31st of July right through to the 15th of August, there’s not a single window that shapes up for a decent paddle. The whole run is a write-off for surf.
First up, the morning of the 31st of July is a non-starter. We’ve got a 4 ft ESE swell but it’s arriving with a short, weak 5-second period and the wind is howling out of the east at 19 mph, putting a nasty cross-onshore chop on everything. The combined energy is a feeble 67, so there’s just no push. The water’s sitting at 84°, which is about average for the time of year, but that’s the only nice thing I can say.
That afternoon, the swell bumps up to 5 ft from the same direction, and the period stretches to 6 seconds, but the wind stays brutal at 19 mph from the ESE. It’s still cross-onshore and lumpy. The energy creeps up to 141, but it’s junk.
Saturday the 1st of August is more of the same. Morning has a 4 ft E swell, but it’s mixed with a 19 mph cross-shore wind from the ENE and a risk of thunderstorms. The energy is 87. The afternoon drops to 3 ft, and the wind swings to a gentle 9 mph, but it’s still cross-onshore. It’s flat, choppy, and poor.
From the 2nd of August onwards, the swell collapses. The 2nd starts with a 2 ft ESE swell and a 12 mph cross-shore wind, then drops to 0.3 ft. The energy is down to 17 and then 4. It’s basically flat. The 3rd, 4th, 5th, and 6th of August are all the same story: tiny dribbles of swell, 0.3 ft to 1 ft, mostly from the SE with periods that are all over the shop. The energy never gets above 69. There’s a brief moment on the morning of the 6th of August where the wind goes glassy, but the swell is 0.3 ft with a 15-second period. That’s a long period for a tiny wave, and it’s going to be a horrible, fat, straight closeout on a beach break if it even breaks at all.
The 7th of August sees a clean cross-offshore wind, but the swell is 0.3 ft in the morning and 2 ft in the afternoon from the SW with a 4-second period – that’s just wind slop. The energy is 10. The 8th, 9th, 10th, and 11th of August are dead flat, with zero energy showing. The winds are clean or cross-off, but there’s simply nothing to ride.
The 12th and 13th of August tease with a 0.3 ft swell from the east, but the periods are 12 to 13 seconds, and the energy is a pathetic 2 to 3. The 14th of August is the same. The 15th of August has a clean offshore wind in the morning, but again, zero swell. The afternoon brings a cross-shore breeze and a risk of thunderstorms.
So, here’s the truth. For the next 16 days, Big Wave Bay is a bust. There are no standouts. The conditions are persistently poor, the swell is either tiny or non-existent, and the wind is almost always wrong. For a beginner-friendly, sheltered spot like this, that’s a tough run. The only thing that might be worth a look is if you’ve got a kite and a death wish, because the wind is consistent, but for a paddle surfer? Save your energy. Forecasts can change, but right now, this is a blank.
Rusty
Short Range ForecastHeavy rain (total 95mm), heaviest during Sun morning. Warm (max 27°C on Fri morning, min 26°C on Fri night). Winds decreasing (fresh winds from the E on Fri afternoon, light winds from the SSE by Sun night). | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Tue night. Warm (max 28°C on Mon morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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) | ESE 5 | ESE 6 | SE 6 | E 5 | E 5 | ESE 5 | ESE 5 | E 10 | E 9 | SE 19 | SE 17 | ESE 16 | ESE 16 | SE 15 | ESE 19 | SE 18 | SE 18 | ESE 17 | SE 15 | SE 20 | SE 19 |
Wave Graph | |||||||||||||||||||||
67 | 141 | 95 | 85 | 53 | 22 | 15 | 2 | 2 | 14 | 12 | 25 | 24 | 59 | 36 | 51 | 51 | 29 | 9 | 16 | 14 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | glassy | cross-on | on | cross | cross-on | cross-on | cross-on | glassy | cross-on | cross-off |
High Tide | 8:54AM1.79m | 11:59PM0.86m | 9:28AM1.74m | 11:34PM0.93m | 10:04AM1.65m | 11:19PM1.05m | 10:42AM1.51m | 11:41PM1.20m | 11:23AM1.33m | 00:14AM1.35m | 12:08PM1.13m | 00:54AM1.48m | 1:00PM0.91m | 1:42AM1.59m | |||||||
Low Tide | 4:43PM0.16m | 3:33AM0.67m | 5:14PM0.19m | 4:25AM0.65m | 5:44PM0.25m | 5:21AM0.63m | 6:14PM0.34m | 6:22AM0.60m | 6:43PM0.44m | 7:29AM0.56m | 7:12PM0.55m | 8:42AM0.50m | 7:40PM0.65m | ||||||||
5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | |
mm | 1 | — | 16 | 5 | 9 | 30 | 15 | 7 | 12 | 2 | 1 | 4 | 5 | 3 | 7 | 3 | 1 | 4 | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 28 |
Feels °C | 28 | 26 | 29 | 27 | 29 | 29 | 29 | 27 | 29 | 31 | 31 | 33 | 31 | 32 | 32 | 30 | 30 | 32 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSW 7 | SSW 7 | SSW 7 | S 6 | ESE 5 | ESE 5 | E 10 | S 7 | S 7 | SE 17 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 7 | S 7 | S 8 | S 8 |
29 | 18 | 9 | 9 | 51 | 22 | 15 | 2 | 92 | 58 | 12 | 59 | 44 | 44 | 33 | 32 | 31 | 43 | 47 | 58 | 74 | |
Swell 2 Height (m) Direction Period (s) | — | — | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | ESE 4 | SE 19 | E 9 | ESE 16 | ESE 16 | SE 15 | ESE 14 | SE 18 | SE 18 | ESE 17 | SE 15 | SE 20 | SE 19 |
— | — | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 14 | 2 | 25 | 24 | 59 | 20 | 51 | 51 | 29 | 9 | 16 | 14 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSE 6 | SSW 7 | — | — | — | E 9 | E 9 | E 6 | E 9 | E 9 | E 7 | ESE 19 | ESE 13 | ESE 13 | SE 12 | E 5 | — | — |
— | — | — | 10 | 36 | — | — | — | 2 | 2 | 1 | 2 | 2 | 1 | 36 | 17 | 17 | 5 | 1 | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 5 | ESE 6 | SE 6 | E 5 | E 5 | S 7 | S 6 | S 7 | — | S 7 | S 7 | — | — | ESE 2 | ENE 3 | ENE 3 | — | — | — | — | — |
67 | 141 | 95 | 85 | 53 | 150 | 115 | 131 | — | 94 | 107 | — | — | 1 | 2 | 1 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 750 | 670 | 581 | 656 | 1760 | 581 | 43 | 683 | 581 | 656 | 670 | 6 | 670 | 656 | 6 | 670 | 581 | 581 | 6 | 581 | 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.











