Surf Forecasts:
Big Wave Bay surf forecast from 1 Aug 2026:
- Most powerful swell: Saturday 1 Aug, 8PM (local time) - 5ft (1.5m), 5s period, SSE swell with 123 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 1.5m 5s and forecast to arrive on Saturday (Aug 01) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 9s period and expected on Saturday (Aug 08) at 8PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 1st Aug) | 5ft (1.5m) 5s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
G'day, Rusty here. Look, I've got to be straight with you – this 16-day window is a shocker. There's nothing on the table worth paddling out for. The whole stretch from August 1st right through to the 16th is a write-off, with barely a ripple to speak of.
We're looking at Big Wave Bay, and it's a tough scene. The water's sitting at a warm 84°F, which is pretty much spot on for this time of year, so you can't blame the temperature for the lack of action. The problem is the swell. For the first few days, we're talking tiny 0.3ft to 1ft waves from the east and southeast, with weak energy readings (2 to 70), and it's all short-period stuff, mostly under 10 seconds. The wind's all over the shop – onshore, cross-on, or cross-shore – keeping things choppy and messy. There's a brief glimmer on the 7th and 8th with some clean conditions as the wind swings cross-offshore, but the swell's still pathetic, barely 0.3ft, and the energy is next to nothing (4 to 21). It's a classic case of "clean but flat."
Then from the 10th onward, it's dead. For days at a time, there's zero swell, zero energy, just clean, glassy water with no waves. The 16th of August finally shows a 1ft wave, but it's got a 4-second period – that's pure wind chop, not even worth a second look. The combined energy is a measly 5.
Honestly, for a beginner-friendly spot like Big Wave Bay, it's a bust. The consistent lack of quality and the persistence of poor surf conditions mean this is a drought. In a place like this, blank runs happen, but it's still a bummer. If you're desperate, the clean conditions on the 7th and 8th might be okay for a paddle, but don't expect a wave. The setup looks more interesting for a kite session than paddle surfing, with that wind and chopped-up water. Hang tight, mate – forecasts can change.
Rusty
Short Range ForecastHeavy rain (total 396mm), heaviest during Sat night. Warm (max 27°C on Sun night, min 25°C on Sat afternoon). Winds decreasing (fresh winds from the SW on Sun morning, light winds from the SE by Tue morning). | Days 5-7 Weather SummaryHeavy rain (total 74mm), heaviest during Tue afternoon. Warm (max 30°C on Fri morning, min 25°C on Tue afternoon). Wind will be generally light. | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 9 | ESE 5 | E 10 | E 10 | ESE 4 | SE 19 | SE 17 | ESE 16 | ESE 16 | SE 15 | SE 15 | ESE 18 | ESE 18 | ESE 17 | ESE 16 | SE 21 | SE 20 | SE 19 | SE 22 | SW 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2 | 20 | 2 | 2 | 26 | 14 | 12 | 25 | 24 | 60 | 55 | 33 | 31 | 29 | 24 | 17 | 15 | 14 | 19 | 9 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | cross-on | cross-on | on | cross-on | on | cross-on | on | cross-on | cross | cross-on | cross | cross-on | on | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:34PM0.93m | 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 | |||||||
Low Tide | 5:14PM0.19m | 4:25AM0.65m | 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 | ||||||
 |  | | | | | | | | |  | | | |  | |  | |  | | |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
mm | 11 | 112 | 21 | 48 | 22 | 17 | 55 | 87 | 23 | 46 | 23 | 2 | 2 | 1 | — | — | — | — | — | 2 |
Temp °C | 25 | 26 | 26 | 25 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 27 | 28 | 28 | 29 | 29 | 28 | 30 | 31 | 30 |
Feels °C | 27 | 26 | 24 | 26 | 29 | 27 | 26 | 25 | 29 | 26 | 28 | 28 | 29 | 31 | 32 | 32 | 31 | 33 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | E 9 | ESE 5 | E 10 | E 10 | SSW 7 | SE 19 | SE 17 | ESE 16 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 8 | S 8 | S 8 | SSW 8 | S 8 |
| kJ | 2 | 20 | 2 | 2 | 76 | 14 | 12 | 25 | 35 | 36 | 24 | 23 | 22 | 45 | 47 | 74 | 98 | 74 | 58 | 61 |
Swell 2 Height (m) Direction Period (s) | — | E 9 | — | — | E 9 | E 9 | E 9 | E 9 | ESE 16 | SE 15 | SE 15 | ESE 14 | ESE 18 | ESE 4 | ESE 16 | SE 21 | SE 20 | SE 19 | SE 22 | E 22 |
| kJ | — | 2 | — | — | 2 | 2 | 2 | 2 | 24 | 60 | 55 | 18 | 31 | 3 | 24 | 17 | 15 | 14 | 19 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 6 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 18 | ESE 13 | ESE 17 | E 11 | E 10 | E 10 | E 9 | E 9 | E 10 |
| kJ | — | — | — | — | — | 1 | 2 | 2 | 2 | 2 | 2 | 33 | 17 | 29 | 2 | 2 | 2 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | S 6 | S 7 | S 7 | S 7 | ESE 4 | S 7 | S 7 | S 7 | E 4 | E 3 | E 4 | E 4 | E 4 | — | E 2 | ESE 3 | — | — | — | SW 4 |
| kJ | 76 | 200 | 229 | 184 | 26 | 94 | 103 | 110 | 6 | 8 | 12 | 18 | 12 | — | 1 | 1 | — | — | — | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2278 | 1433 | 1427 | 672 | 581 | 656 | 656 | 619 | 683 | 670 | 581 | 670 | 581 | 581 | 581 | 581 | 40 | 6 | 581 | 144 |
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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