
Surf Forecasts:
Big Wave Bay surf forecast from 23 Jul 2026:
- Best quality surf: Saturday 25 Jul, 8PM (local time) - 5ft (1.6m), 13s period, ESE swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 2AM (local time) - 11ft (3.5m), 13s period, ESE swell with 3,861 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 8PM (local time) - 5ft (1.6m), 13s 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 8PM. The primary swell is predicted to be 1.6m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Big Wave Bay in the next 16 days are 3.5m 13s and forecast to arrive on Sunday (Jul 26) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 8s period and expected on Sunday (Jul 26) at 2PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 25th Jul) | 5ft (1.6m) 13s |
| Best Surf | 8PM (Sat 25th Jul) | 5ft (1.6m) 13s |
| Most Powerful | 2AM (Sun 26th Jul) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
G'day, Rusty here. Let's be straight with you – this 16-day window at Big Wave Bay is a rough one for surfers. The first week is a write-off, and the second week only offers a couple of brief moments of hope. The forecast is a patchwork of crazy winds, storms, and messy conditions, but there are two days that stand out if you're willing to be patient.
The whole period kicks off with a massive storm on the 26th of July. Sunday morning sees a 16ft swell from the NNW, but it's attached to a 56 mph cross-offshore wind. That's a "storm force" situation, and while the wave energy is extreme (3581), it's pure danger. The afternoon is just as bad with a severe gale. Don't even think about it.
Things don't settle down. The beginning of the week is a mess of rain, thunderstorms, and strong cross-shore winds. The swell is either tiny or, when it does show up on the 28th and 29th, it's short-period (6 to 7 seconds) and blown out by fresh to strong onshore winds. The combined energy gets up to moderate levels (around 273), but the quality is garbage.
The first real standout comes on the 31st of July. Friday morning is absolute glass. The wind is dead calm (0 mph), and you've got a 10ft SE swell. The period is a bit short at 8 seconds, but the wave energy is strong (960) and the conditions are described as "glassy." This is your best window for experienced surfers. At 10ft, it's expert territory, so don't take the beginners out. The afternoon cleans up even more with a glassy surface and a 6ft ESE swell, making it a solid session. Expect crowds here, as it's a "sometimes" crowded spot.
The second standout is a bit further out, on the 2nd of August. Sunday morning brings a 4ft ESE swell with a long period of 13 seconds, which is proper groundswell. The wind is a gentle cross-shore from the NE, which will keep the surface clean. The combined energy is moderate (476). This is a much more manageable size for a wider range of surfers. The long period means longer waits between sets, but better-shaped waves. It's a promising day, but being over a week away, don't lock it in just yet.
Everything else in the second week drops off hard. The 1st of August has a decent swell (5ft) but with a cross-on wind, it's not worth it. From the 3rd of August onwards, the swell collapses to tiny, weak waves with poor wind. The 5th of August, for example, has a 0.3ft swell with a 17-second period – that's a long wait for nothing.
So, to sum it up: the 31st of July is your best bet for clean, powerful, expert-only surf. The 2nd of August is a more moderate, long-period groundswell option for the rest of the crew. The rest of the 16 days is a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 105mm), heaviest during Sun morning. Warm (max 29°C on Thu night, min 26°C on Sun morning). Winds increasing (light winds from the SSW on Thu night, stormy winds from the N by Sun morning). | Days 5-7 Weather SummaryHeavy rain (total 204mm), heaviest during Sun night. Warm (max 28°C on Wed morning, min 24°C on Mon afternoon). Winds decreasing (severe gales from the S on Sun night, light winds from the NNW by Mon afternoon). | ||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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 9 | E 10 | E 10 | E 10 | ESE 11 | ESE 13 | NNW 8 | ESE 8 | ESE 9 | ESE 8 | ESE 5 | ESE 5 | E 6 | E 6 | E 6 | ESE 7 | SE 8 | SE 10 |
Wave Graph | |||||||||||||||||||
2 | 2 | 2 | 2 | 2 | 149 | 3861 | 3095 | 39 | 15 | 11 | 44 | 74 | 264 | 272 | 206 | 273 | 619 | 1419 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-off | cross-on | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-off | cross-on | cross | cross | cross-on | cross-on | cross-on | on |
High Tide | 3:05AM1.47m | 2:03PM0.57m | 8:22PM0.77m | 9:24PM0.81m | 9:57PM0.83m | 6:04AM1.64m | 10:27PM0.83m | 6:57AM1.71m | 10:57PM0.83m | 7:40AM1.76m | 11:24PM0.82m | ||||||||
Low Tide | 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 | 3:00PM0.21m | 1:04AM0.77m | 3:36PM0.17m | 1:55AM0.73m | |||||
— | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | |
7:07 | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | |
mm | — | — | — | — | — | 3 | 3 | 51 | 48 | 135 | 13 | 11 | — | 3 | 19 | 12 | 5 | 6 | 11 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 27 | 28 | 26 | 27 | 27 | 27 | 25 | 27 | 27 | 27 | 27 | 28 | 28 | 27 |
Feels °C | 33 | 33 | 32 | 32 | 30 | 31 | 31 | 19 | 24 | 21 | 26 | 27 | 28 | 28 | 26 | 26 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | ESE 11 | ESE 13 | E 9 | ESE 8 | ESE 9 | SE 10 | S 6 | S 7 | S 9 | S 8 | S 8 | S 8 | SSW 8 | SSW 8 |
14 | 15 | 15 | 9 | 15 | 138 | 3861 | 486 | 39 | 15 | 4 | 84 | 61 | 76 | 71 | 48 | 33 | 13 | 14 | |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 10 | E 10 | E 9 | SE 14 | — | WSW 8 | N 7 | — | E 8 | SE 10 | SE 10 | — | — | — | — | — | — |
2 | 2 | 2 | 2 | 1 | 149 | — | 7 | 14 | — | 1 | 4 | 4 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 10 | SSW 6 | — | SSE 12 | — | — | ESE 8 | — | — | — | — | — | — | — | — |
— | — | — | — | 2 | 8 | — | 343 | — | — | 11 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNW 8 | SW 8 | S 8 | SSE 7 | ESE 5 | ESE 5 | E 6 | E 6 | E 6 | ESE 7 | SE 8 | SE 10 |
— | — | — | — | — | — | — | 3095 | 1683 | 937 | 206 | 44 | 74 | 264 | 272 | 206 | 273 | 619 | 1419 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 820 | 1053 | 1053 | 1043 | 359 | 22 | 619 | 750 | 683 | 803 | 928 | 6 | 619 | 581 | 826 | 581 | 581 | 826 | 683 |
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.










