Surf Forecasts:
Big Wave Bay surf forecast from 17 Jul 2026:
- Most powerful swell: Friday 17 Jul, 5PM (local time) - 0.5ft (0.1m), 9s period, E swell with 2 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 0.1m 9s and forecast to arrive on Friday (Jul 17) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Friday (Jul 17) at 8PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Fri 17th Jul) | 0.5ft (0.1m) 9s |
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's on the table for Big Wave Bay over the next couple of weeks.
Right off the bat, I gotta be straight with you – it's a rough start. We're looking at a solid ten days of nothing worth paddling out for. From Friday the 17th right through to Sunday the 26th of July, the surf is virtually flat. We're talking ankle-snappers at best, with swell heights stuck at 0.3ft and wave energy barely registering (2 to 6). The wind is mostly cross or cross-on, and the wave comment just says "poor surf conditions" – which it is. You'd be better off finding a different hobby for that stretch.
Now, after that long, dry spell, things finally start to show a flicker of life. On Monday the 27th of July, the swell picks up. We see a 2ft southwest swell rolling in, but the period is a short, weak 5 seconds. The energy is still low (40), so it's not going to be anything special. The good news is the morning sees a clean cross-offshore breeze from the west. For a beginner-friendly, sheltered spot like this, that's about as good as it gets for the conditions. If you're desperate for a float, that's your window.
The best of the bunch, and I mean the only standout in this whole 16-day forecast, is Tuesday the 28th of July. The morning has a 3ft southwest swell – still small, but it's the biggest we get. The period is still short at 5 seconds, so it's a bit weak and lumpy, but the wind is a clean, strong cross-offshore from the west-southwest at 22 mph. That breeze will keep the surface glassy. The wave energy ticks up to a moderate 55. Big Wave Bay is a sheltered beginner spot, so this is about as good as it's going to get. It's still tiny, but for a beginner looking for some clean, small waves, this Tuesday morning is your only real shot. The water temp is about 84°, which is spot on for this time of year.
After that, it fades back into the flatness from the 29th of July onwards, with the swell dropping back to 0.3ft and the energy dying off. Honestly, this is a pretty lean run. The setup is so sheltered that it needs a solid push from the right direction to get going, and we just aren't getting it. For the first ten days, the bay is a ghost town. Keep an eye on the forecasts, but for now, don't hold your breath.
Rusty.
Short Range ForecastHeavy rain (total 34mm), heaviest during Sat morning. Warm (max 29°C on Fri morning, min 28°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Tue night. Warm (max 29°C on Mon morning, min 28°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 9 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 9 | E 11 | E 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:04AM1.89m | 1:14AM0.91m | 10:44AM1.71m | 1:45AM1.00m | 11:17AM1.49m | 2:12AM1.10m | 11:44AM1.25m | 2:32AM1.20m | 12:08PM1.04m | 2:28AM1.30m | 12:36PM0.85m | 4:19PM0.78m | 2:30AM1.39m | 1:11PM0.69m | 6:45PM0.74m | 3:05AM1.47m | |||||
Low Tide | 5:45PM0.07m | 4:35AM0.70m | 6:18PM0.19m | 5:38AM0.70m | 6:48PM0.32m | 6:44AM0.71m | 7:16PM0.44m | 7:54AM0.70m | 7:42PM0.55m | 9:07AM0.66m | 4:01PM0.78m | 8:09PM0.64m | 10:23AM0.60m | 3:31PM0.65m | 8:36PM0.71m | ||||||
 | |  | |  |  | | | | | | | | | | | | | |  | | |
 | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 7:08 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
mm | 10 | 1 | 5 | 8 | — | 5 | 1 | 1 | 3 | 3 | 1 | 3 | 4 | 1 | 6 | 6 | 1 | 5 | 5 | — | 4 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 31 | 31 | 32 | 31 | 30 | 33 | 32 | 32 | 32 | 32 | 31 | 32 | 31 | 31 | 31 | 31 | 31 | 32 | 31 | 31 | 33 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | E 8 | E 8 | E 8 | E 7 | E 9 | E 9 | S 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | S 7 | E 8 | E 9 | S 7 |
| kJ | 178 | 156 | 123 | 1 | 1 | 1 | 1 | 2 | 1 | 98 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 70 | 1 | 2 | 48 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 9 | E 9 | — | — | — | E 9 | E 7 | — | E 8 | E 9 | — | E 9 | — | — | — | — | E 8 | E 9 | E 9 | E 11 |
| kJ | 2 | 2 | 2 | — | — | — | 2 | 1 | — | 1 | 2 | — | 2 | — | — | — | — | 1 | 1 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 11 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | SSW 7 | — | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | S 7 | S 6 | SSW 7 | S 7 | S 7 | S 6 | S 7 | S 6 | S 6 | — | S 7 | S 7 | — |
| kJ | 228 | — | 171 | 157 | 135 | 114 | 94 | 157 | 111 | 120 | 131 | 92 | 85 | 100 | 89 | 76 | 74 | — | 65 | 66 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1053 | 1433 | 272 | 1433 | 1433 | 656 | 1433 | 656 | 670 | 1441 | 1496 | 670 | 683 | 1496 | 670 | 1496 | 1449 | 619 | 670 | 670 | 656 |
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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