
Surf Forecasts:
Big Wave Bay surf forecast from 21 Jul 2026:
- Best quality surf: Saturday 25 Jul, 11PM (local time) - 4.5ft (1.3m), 11s period, ESE swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 11AM (local time) - 18ft (5.5m), 13s period, SE swell with 10,058 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 11PM (local time) - 4.5ft (1.3m), 11s period with ESE 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 Saturday (Jul 25) at 11PM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.4m and 3s. 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 5.5m 13s and forecast to arrive on Sunday (Jul 26) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 12s period and expected on Sunday (Jul 26) at 8PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 25th Jul) | 4.5ft (1.3m) 11s |
| Best Surf | 11PM (Sat 25th Jul) | 4.5ft (1.3m) 11s |
| Most Powerful | 11AM (Sun 26th Jul) | 18ft (5.5m) 13s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Alright, I'm Rusty, and I've got to level with you – this 16-day stretch for Big Wave Bay is looking real flat. We've got a long stretch of nothing but tiny, weak waves and messy conditions. The first bit of real size doesn't even show up until Sunday, July 26th, and even then, it's a total disaster.
The whole first week is a washout. From now through Saturday, July 25th, we're talking about ankle-snappers at best, with swell heights barely reaching 0.3ft. The wave energy is non-existent, with values like 1 or 2 (weak energy). Winds are all over the place, mostly cross-onshore or glassy, but with no swell to work with, it doesn't matter. Not a single wave worth paddling for.
Then, on Sunday, July 26th, the bottom drops out. A massive swell arrives, throwing up 18ft of swell from the SE. The combined energy reading is a staggering 10058 (very strong wave energy), but don't get excited. The wind is screaming at 34 mph from the NE, creating a near-gale cross-shore mess. The conditions are "poor" and the wave comment is "poor surf conditions". This isn't surfer territory; this is survival stuff. For a sheltered spot like Big Wave Bay, that kind of size and wind is just ugly. It's honestly more interesting for kite surfing than paddle surfing, if you're into that.
Monday, July 27th through Tuesday, July 28th sees the swell drop but it's still got some energy, around 4ft to 5ft, with readings in the 125 to 238 range (moderate wave energy). But the wind is still howling onshore from the SE and E, making it lumpy and choppy. The period is a short, weak 6 to 7 seconds, so it's all wind chop. Another pass.
From Wednesday, July 29th onward, the swell fades right back down to almost nothing, with wave energy dropping to double digits and then single digits (weak energy). The wind does clean up on some days, going cross-offshore from the W and WSW, giving us some glassy conditions. On the 30th and 31st, we get clean 0.7ft to 1ft waves, but it's just too small to do anything. There's a pulse of longer-period swell (14-15 seconds) on the 2nd and 3rd of August, but the swell height is still only 0.7ft to 2ft, so it's just a tease. The energy picks up to 163 (moderate wave energy) on the afternoon of the 3rd, but with cross-onshore wind, it's just chopped up.
Honestly, in this entire 16-day window, there is not a single standout. There's no good surf on offer. The consistency is there for the break, but the swell and wind just never line up. It's a blank run, plain and simple. For a spot that's usually fairly consistent, this is a tough stretch. Forecasts can change, but right now, I'd be finding something else to do for the next two weeks.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Warm (max 29°C on Tue night, min 27°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 43mm), heaviest during Sat night. Warm (max 31°C on Sat afternoon, min 26°C on Sat night). Winds increasing (calm on Fri night, gales from the ENE by Sun afternoon). | ||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
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 9 | E 8 | E 8 | E 8 | E 8 | E 11 | E 11 | E 9 | E 10 | E 10 | E 10 | SE 13 | ESE 13 | SE 13 | SE 12 | ESE 8 | ESE 7 | ESE 7 | ESE 6 |
Wave Graph | |||||||||||||||||||
2 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 3919 | 10058 | 7287 | 696 | 320 | 125 | 90 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-off | cross-off | cross | cross | cross | cross | cross-on | on | on | cross-on |
High Tide | 2:28AM1.30m | 12:36PM0.85m | 4:19PM0.78m | 2:30AM1.39m | 1:11PM0.69m | 6:45PM0.74m | 3:05AM1.47m | 2:03PM0.57m | 8:22PM0.77m | 9:24PM0.81m | 9:57PM0.83m | 6:04AM1.64m | 10:27PM0.83m | ||||||
Low Tide | 9:07AM0.66m | 4:01PM0.78m | 8:09PM0.64m | 10:23AM0.60m | 3:31PM0.65m | 8:36PM0.71m | 11:37AM0.52m | 3:39PM0.55m | 9:06PM0.77m | 12:43PM0.42m | 9:58PM0.81m | 1:36PM0.34m | 11:07PM0.82m | 2:20PM0.26m | 00:09AM0.80m | ||||
— | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | |
7:07 | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | |
mm | 1 | 4 | 1 | 2 | — | — | — | — | — | — | — | — | 10 | 1 | 4 | 12 | 9 | 7 | 13 |
Temp °C | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 30 | 31 | 29 | 28 | 27 | 28 | 27 | 27 | 27 |
Feels °C | 32 | 31 | 31 | 33 | 33 | 33 | 32 | 33 | 32 | 33 | 33 | 34 | 27 | 25 | 21 | 22 | 23 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | S 7 | E 8 | E 8 | S 7 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | ESE 13 | — | — | S 11 | S 10 | S 9 | S 9 |
56 | 1 | 1 | 43 | 27 | 27 | 20 | 13 | 12 | 12 | 15 | 14 | 2521 | — | — | 2138 | 725 | 486 | 258 | |
Swell 2 Height (m) Direction Period (s) | E 9 | E 8 | — | E 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | S 8 | SSW 8 | — | — | — | — | — | SE 10 |
2 | 1 | — | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 19 | — | — | — | — | — | 4 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 11 | E 11 | — | — | — | — | SE 13 | — | — | — | — | — | — | — |
— | — | — | — | — | 2 | 2 | — | — | — | — | 6 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 7 | S 6 | S 6 | SSW 7 | — | — | — | — | — | — | — | — | ESE 13 | SE 13 | SE 12 | ESE 8 | ESE 7 | ESE 7 | ESE 6 |
92 | 54 | 51 | 77 | — | — | — | — | — | — | — | — | 3919 | 10058 | 7287 | 696 | 320 | 125 | 90 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 656 | 670 | 683 | 656 | 670 | 1429 | 656 | 1053 | 1043 | 581 | 619 | 1433 | 619 | 581 | 1433 | 581 | 928 | 889 | 819 |
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.










