Surf Forecasts:
Big Wave Bay surf forecast from 9 Jul 2026:
- Best quality surf: Friday 10 Jul, 5AM (local time) - 4.5ft (1.4m), 18s period, SE swell with glassy winds.
- Most powerful swell: Friday 10 Jul, 2PM (local time) - 5ft (1.6m), 18s period, SE swell with 1,501 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 2AM (local time) - 4ft (1.2m), 18s period with SE 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 Friday (Jul 10) at 2AM. The primary swell is predicted to be 1.2m and 18s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Big Wave Bay in the next 16 days are 1.6m 18s and forecast to arrive on Friday (Jul 10) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Sunday (Jul 12) at 2AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 10th Jul) | 4ft (1.2m) 18s |
| Best Surf | 5AM (Fri 10th Jul) | 4.5ft (1.4m) 18s |
| Most Powerful | 2PM (Fri 10th Jul) | 5ft (1.6m) 18s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
Right, let’s get into it. The overall pattern for the next 16 days is a bit of a bummer, to be honest. We’ve got a real quiet stretch ahead, with pretty much nothing worthwhile for the first week and a half. The only real window of opportunity looks like a brief spike on Friday, July 10th, but even that comes with some serious caveats.
First up, we’ve got Big Wave Bay. The water here is sitting at a warm 84°, which is pretty much spot on for this time of year, so no surprises there.
The only surf worth paddling out for is coming up on Friday, July 10th. The morning session is the pick of the bunch, with a solid 5ft swell pushing in from the southeast. The energy is strong, with a combined energy reading of 1367, so there’s some proper grunt behind it. The period is a long 18 seconds, which is a proper groundswell, meaning nice, clean lines, but it might wall up a bit at the beach. The wind is light and straight onshore from the southeast, so it’ll be a bit bumpy, but it’s still surfable. The afternoon sees a similar 5ft swell from the east-southeast, but a light cross-shore wind from the southwest will put a few ripples on the face. The combined energy is still high at 1352.
The previous day, Thursday, July 9th, is a write-off – 3ft of choppy, cross-on crap. After Friday, it’s a long, agonising drop-off. Saturday, July 11th, starts with a 3ft swell from the east-southeast, but the wind is a strong 12 mph cross-off from the west-northwest, which will keep it clean but small. The energy drops to 545. By Saturday afternoon, it’s down to 2ft, and then from Sunday, July 12th, right through to Thursday, July 24th, it’s flat or near-flat. We’re talking 0.3ft to 1ft waves with tiny energy readings mostly in the single digits or low teens. There’s a few glassy mornings on July 16th, July 19th, and July 20th, but with no swell to speak of, it’s just a flat, pretty ocean.
So, the truth is, there’s only one day that’s even worth a look, and that’s the morning of Friday, July 10th. The wind isn’t ideal, but the swell size and energy are there. It’s not a standout, it’s just the only game in town. The rest of the 16 days is a big gap with no recommendations. That’s a long, dry spell, but this area can go quiet, so it’s not a total shock. Fingers crossed the forecasts change.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 30°C on Sat morning, min 28°C on Thu night). Winds increasing (calm on Thu night, strong winds from the WSW by Sat night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Warm (max 29°C on Sun afternoon, min 28°C on Sun afternoon). Winds decreasing (fresh winds from the SW on Sun afternoon, calm by Wed morning). | ||||||||||||||||||||
Thu 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ESE 17 | SE 18 | SE 18 | ESE 17 | ESE 16 | ESE 16 | ESE 15 | E 9 | SE 13 | E 13 | E 10 | E 12 | E 11 | E 11 | E 10 | E 10 | E 9 | E 9 | E 9 | E 6 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 528 | 895 | 1367 | 1352 | 1005 | 545 | 131 | 8 | 7 | 4 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | on | cross-on | on | cross-on | on | cross | glassy |
High Tide | 2:31PM0.90m | 3:32AM1.58m | 7:23PM0.78m | 4:28AM1.73m | 8:54PM0.80m | 5:28AM1.87m | 9:58PM0.82m | 6:30AM1.98m | 10:48PM0.82m | 7:29AM2.06m | 11:29PM0.82m | 8:26AM2.07m | 00:07AM0.82m | 9:17AM2.02m | |||||||
Low Tide | 9:25PM0.61m | 11:31AM0.37m | 10:06PM0.70m | 12:41PM0.19m | 10:51PM0.76m | 1:45PM0.03m | 11:42PM0.79m | 2:43PM-0.07m | 00:38AM0.78m | 3:36PM-0.12m | 1:36AM0.75m | 4:24PM-0.11m | 2:34AM0.72m | ||||||||
 |  | |  |  | | |  | | | | | | | | | | | |  | | |
 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 |
 | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | 7:08 |
mm | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | 2 | — | — | 1 | — | — | 1 | — |
Temp °C | 29 | 28 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 30 | 29 | 30 |
Feels °C | 32 | 32 | 34 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 33 | 33 | 32 | 34 | 34 | 34 | 33 | 34 | 34 | 35 |
Swell 1 Height (m) Direction Period (s) | ESE 17 | SE 18 | SE 18 | ESE 17 | ESE 16 | ESE 16 | ESE 15 | E 9 | SE 13 | E 12 | S 9 | S 10 | S 10 | S 9 | S 10 | S 10 | S 9 | S 10 | S 9 | S 9 | S 9 |
| kJ | 528 | 895 | 1367 | 1352 | 1005 | 545 | 131 | 6 | 7 | 3 | 356 | 400 | 379 | 274 | 377 | 260 | 214 | 312 | 234 | 153 | 146 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | SSW 7 | SSW 7 | — | SE 14 | — | E 13 | E 10 | E 12 | E 11 | E 8 | E 10 | E 10 | E 9 | E 9 | E 9 | E 6 | E 6 |
| kJ | 79 | 47 | 36 | 26 | 42 | 40 | — | 8 | — | 4 | 2 | 3 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 14 | — | — | — | E 9 | E 9 | E 11 | — | — | E 9 | E 9 | E 9 | — | E 9 |
| kJ | — | — | — | — | — | — | — | 4 | — | — | — | 2 | 2 | 2 | — | — | 2 | 2 | 2 | — | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WNW 2 | SSW 4 | SSW 6 | SSW 7 | SSW 9 | SSW 9 | — | — | S 9 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 1 | 43 | 238 | 229 | 358 | 463 | — | — | 430 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 670 | 0 | 5 | 3 | 0 | 3 | 928 | 820 | 820 | 820 | 581 | 683 | 683 | 581 | 144 | 845 | 40 | 40 | 581 | 6 | 6 |
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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