Surf Forecasts:
Big Wave Bay surf forecast from 2 Aug 2026:
- Most powerful swell: Tuesday 4 Aug, 5PM (local time) - 1.5ft (0.4m), 15s period, SE swell with 60 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 0.4m 15s and forecast to arrive on Tuesday (Aug 04) 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 1.8m 8s period and expected on Sunday (Aug 09) at 5AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 4th Aug) | 1.5ft (0.4m) 15s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Alright, let's have a look at what we've got on the cards.
To be brutally honest, it’s a tough outlook for the next couple of weeks. We’re looking at a real flat spell here. Right from the start, the available swell is tiny, and it’s staying that way for a long time. In fact, from the end of the first week, we are looking at a completely flat run from the 11th of August all the way through to the end of the forecast on the 17th. That’s a full week of zero surf on the cards.
Right now, for Sunday the 2nd of August, we’ve got a tiny 0.3ft swell from the east, but it’s coming with a blustery 22 mph cross-onshore wind and heavy rain. Combined energy is next to nothing at (4). Water temp is sitting at 84° which is pretty average for this time of year, so no worries there, but conditions are just awful. Monday the 3rd stays tiny at 0.3ft, with a slightly better 3 mph cross-on breeze in the morning but still pretty ordinary and the wave comment is poor throughout.
By Tuesday the 4th, the swell tries to build a little, hitting 1ft from the SE in the afternoon, with combined energy climbing to a weak (68). Still, the wind is a cross-onshore from the east at 9 mph, so it’s choppy and not worth getting wet for. Wednesday the 5th has a really short period of 6 seconds in the morning, which is just junk, and the swell drops again.
There’s a brief glimmer on Thursday the 6th of August morning - glassy conditions as the wind drops to 3 mph from the east, but the swell is still a pathetic 0.7ft from the ESE. It’s clean looking glass, but without any swell to push it, there’s nothing to ride.
From Friday the 7th through to the 10th, the wind goes offshore or cross-offshore, giving clean conditions, but the swell is locked in at just 0.3ft. It’s clean – sure – but basically flat.
Forget any standout sessions here. There’s nothing that could even be called a wave for the beginners at Big Wave Bay, and the shelter from the NE doesn’t help when there’s no energy coming through. Best advice is to leave the board at home for a while. This is a normal blank run for a sheltered spot in a quiet period.
- Rusty
Short Range ForecastHeavy rain (total 178mm), heaviest during Sun morning. Warm (max 27°C on Sun night, min 24°C on Sun morning). Winds decreasing (fresh winds from the SSW on Sun morning, light winds from the SSW by Mon morning). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Warm (max 30°C on Fri afternoon, min 26°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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 | ESE 5 | SE 19 | SE 17 | ESE 16 | ESE 16 | SE 15 | SE 15 | ESE 6 | ESE 18 | ESE 17 | ESE 16 | E 10 | SE 20 | SE 19 | SE 23 | SW 4 | E 21 | E 10 | E 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 13 | 14 | 12 | 25 | 24 | 60 | 55 | 7 | 31 | 29 | 25 | 2 | 15 | 14 | 20 | 13 | 9 | 2 | 4 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross-on | cross-on | glassy | glassy | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 2:11PM0.69m | 2:40AM1.68m | 3:52AM1.76m | ||||||||
Low Tide | 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 | 10:02AM0.41m | 3:50PM0.68m | 8:03PM0.74m | 11:23AM0.29m | ||||||||
 | |  |  | | | | | | |  |  | | |  | | | | |  | | |
 | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — |
mm | 87 | 34 | 16 | 7 | 6 | 15 | 8 | 2 | 3 | 4 | — | — | — | — | — | — | — | — | — | — | 4 |
Temp °C | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 28 | 27 | 29 | 29 | 29 | 29 | 30 | 29 | 31 | 32 | 30 |
Feels °C | 26 | 26 | 28 | 32 | 30 | 28 | 29 | 29 | 31 | 30 | 30 | 30 | 33 | 32 | 32 | 32 | 32 | 32 | 34 | 34 | 34 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | S 7 | SE 19 | S 7 | SSW 7 | SSW 6 | SSW 6 | S 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | SSW 7 | S 7 | S 7 | S 8 | SSW 7 | S 9 | SSW 8 |
| kJ | 2 | 2 | 117 | 14 | 44 | 26 | 23 | 23 | 23 | 15 | 15 | 26 | 45 | 36 | 57 | 38 | 38 | 29 | 46 | 164 | 262 |
Swell 2 Height (m) Direction Period (s) | E 10 | — | E 9 | E 9 | SE 17 | ESE 16 | ESE 16 | SE 15 | SE 15 | ESE 6 | ESE 6 | SE 4 | ESE 16 | E 5 | SE 20 | SE 19 | SE 23 | E 22 | S 10 | E 10 | E 14 |
| kJ | 2 | — | 2 | 2 | 12 | 25 | 24 | 60 | 55 | 7 | 7 | 2 | 25 | 1 | 15 | 14 | 20 | 10 | 69 | 2 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 6 | E 9 | E 9 | E 6 | E 9 | ESE 6 | ESE 3 | ESE 18 | ESE 17 | E 5 | E 10 | E 5 | E 9 | E 18 | E 5 | E 21 | — | — |
| kJ | — | — | — | 1 | 2 | 2 | 1 | 2 | 7 | 2 | 31 | 29 | 2 | 2 | 1 | 2 | 6 | 1 | 9 | — | — |
Wind waves Height (m) Direction Period (s) | S 7 | S 7 | ESE 5 | S 6 | ESE 3 | SE 4 | ESE 3 | ESE 3 | E 3 | NE 3 | E 3 | SE 4 | — | — | — | — | SW 3 | SW 4 | — | SW 4 | SSW 8 |
| kJ | 135 | 134 | 13 | 83 | 4 | 7 | 2 | 6 | 2 | 2 | 3 | 3 | — | — | — | — | 2 | 13 | — | 11 | 390 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1427 | 670 | 619 | 656 | 672 | 619 | 670 | 670 | 581 | 581 | 581 | 6 | 670 | 581 | 581 | 775 | 581 | 581 | 40 | 144 | 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.
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