Surf Forecasts:
Big Wave Bay surf forecast from 29 Aug 2026:
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 2.5ft (0.8m), 7s period, E swell with 62 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 0.8m 7s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 9s period and expected on Monday (Aug 31) at 8AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Wed 2nd Sep) | 2.5ft (0.8m) 7s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Alright, Rusty here again, with the same story in feet and miles. Big Wave Bay is locked in a flat spell that’s gonna test your patience.
From now through the first week of September, it’s tiny. Swell heights topping out at about 2ft on Tuesday the 1st of September, from the east-northeast, with a weak period around 5 seconds. Combined energy is pathetic (under 20). The wind that Tuesday is cross-off from the north-northeast at 15 mph, so it’s clean, but there’s zero push. For the rest of that week, we’re looking at ankle-snappers—0.3ft to 1ft from the east, with a few glassy mornings (like Friday the 4th and Saturday the 5th) that would be perfect if there was any swell. There isn’t. Water temp is about average for this time of year.
The first week is a total loss for surfing. If you’re learning and just want to mess around in shorebreak, maybe, but don’t expect a wave.
There’s a little hope on Friday the 11th of September. Swell bumps up to about 1ft from the east-southeast, but with a 12-second period—that’s a real groundswell pulse, and combined energy climbs to 29. The wind goes fresh offshore from the northwest at 22 mph, so it’ll be clean. But the height is still too small to ride properly. It’s more of a kite-surfing setup with that wind and tiny swell.
Then it turns ugly. Saturday the 12th brings a near gale from the east-southeast at 34 mph, cross-onshore, blowing everything to bits. Combined energy hits 30, but it’s just blown-out, lumpy slop. Not a day for a paddle.
After that, it fades back to flat. Sunday the 13th and Monday the 14th show 0.6ft to 1ft, onshore wind, and thunderstorms. Choppy, messy, inconsistent.
The bottom line: There are zero standout sessions in this 16-day window. The only faint pulse comes on the 11th, but the swell height is too small for a proper surf. If you’ve got a foil or a really big longboard, you might find something clean that morning, but for most of us, it’s a bust. This is a long, dry run for Big Wave Bay. Forecasts change, but right now, don’t hold your breath.
Stay patient. Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon night. Warm (max 30°C on Tue afternoon, min 26°C on Sun afternoon). Winds increasing (calm on Mon morning, fresh winds from the NNE by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Wed afternoon, min 26°C on Wed morning). Winds decreasing (fresh winds from the N on Wed night, light winds from the NNW by Thu night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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 9 | S 9 | S 9 | ENE 4 | E 4 | ENE 6 | NE 3 | E 6 | E 7 | E 6 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | NNE 4 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 0 | 0 | 7 | 3 | 4 | 5 | 32 | 42 | 6 | 10 | 5 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:22AM1.56m | 10:02PM1.22m | 9:58AM1.43m | 10:21PM1.37m | 10:36AM1.27m | 10:50PM1.51m | 11:17AM1.08m | 11:26PM1.62m | 12:01PM0.88m | 00:08AM1.69m | 12:54PM0.68m | 00:59AM1.71m | 2:02AM1.70m | ||||||||
Low Tide | 4:27PM0.31m | 4:26AM0.43m | 4:54PM0.40m | 5:19AM0.38m | 5:20PM0.50m | 6:16AM0.35m | 5:44PM0.61m | 7:20AM0.34m | 6:00PM0.70m | 8:32AM0.33m | 2:38PM0.67m | 9:54AM0.30m | |||||||||
 | |  |  |  |  | | |  | | |  | | | | | |  | | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — |
mm | 4 | 2 | 4 | — | 2 | 9 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 27 | 29 | 28 | 29 | 30 | 28 | 29 | 30 | 28 | 29 | 30 | 29 | 29 | 30 | 29 | 27 | 29 | 28 |
Feels °C | 32 | 30 | 31 | 32 | 33 | 33 | 29 | 29 | 27 | 28 | 29 | 26 | 28 | 30 | 28 | 29 | 31 | 29 | 27 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 10 | S 10 | S 11 | S 11 | S 10 | S 9 | SSW 8 | SSW 9 | SSW 8 | SSW 8 | S 8 | SSW 8 | SSW 7 | SSW 7 | SSW 8 |
| kJ | 185 | 224 | 210 | 293 | 282 | 194 | 320 | 290 | 267 | 220 | 123 | 53 | 23 | 26 | 22 | 19 | 18 | 22 | 18 | 17 | 22 |
Swell 2 Height (m) Direction Period (s) | E 9 | — | — | — | E 4 | ENE 6 | — | E 6 | E 7 | E 6 | E 8 | E 8 | SSE 7 | SSE 7 | SSE 7 | SE 7 | NNE 4 | — | E 10 | NNE 3 | E 10 |
| kJ | 2 | — | — | — | 3 | 4 | — | 32 | 42 | 6 | 10 | 5 | 5 | 5 | 5 | 2 | 2 | — | 2 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | E 8 | W 6 | W 5 | E 8 | E 9 | E 9 | E 8 | E 8 | E 10 | — | E 10 | — |
| kJ | — | — | — | — | — | — | — | — | — | 5 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 2 | — | 2 | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | — | N 2 | ENE 4 | — | — | NE 3 | N 3 | N 4 | NNW 4 | N 4 | N 4 | N 4 | N 4 | N 4 | N 4 | — | NNE 3 | N 3 | — | — |
| kJ | 1 | — | 1 | 7 | — | — | 5 | 8 | 50 | 21 | 22 | 38 | 48 | 19 | 35 | 21 | — | 3 | 6 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 819 | 40 | 6 | 6 | 144 | 6 | 161 | 161 | 6 | 272 | 619 | 144 | 359 | 775 | 683 | 670 | 670 | 670 | 670 | 670 | 683 |
Best forecast wave conditions in Hong Kong | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Wave Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest