Surf Forecasts:
Big Wave Bay surf forecast from 20 Jul 2026:
- Best quality surf: Monday 27 Jul, 2AM (local time) - 2.5ft (0.8m), 10s period, ESE swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 8PM (local time) - 3ft (0.9m), 11s period, ESE swell with 170 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 2AM (local time) - 2.5ft (0.8m), 10s 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 Monday (Jul 27) at 2AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.4m and 4s. 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 0.9m 11s and forecast to arrive on Monday (Jul 27) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Monday (Jul 20) at 8PM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 27th Jul) | 2.5ft (0.8m) 10s |
| Best Surf | 2AM (Mon 27th Jul) | 2.5ft (0.8m) 10s |
| Most Powerful | 8PM (Mon 27th Jul) | 3ft (0.9m) 11s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down the next couple of weeks at Big Wave Bay.
Honestly, it’s a pretty grim outlook to start. From Monday the 20th of July, we’re lookin’ at a real flat spell. The swell is barely a whisper at 0.3 ft, and the wind is mostly cross or onshore, makin’ it choppy and unappealing. Nothin’ worth gettin’ wet for. The water temp is about 84°F, which is right where it should be for this time of year.
But hold up – there’s one little window that might get your hopes up. Come Monday the 27th of July, we finally get a pulse of life. A clean, cross-offshore breeze sets up with an ESE swell. It’s only 3 ft, but the period is a solid 12 seconds, which means it’ll have some real push and shape. The combined energy clocks in at 218 (moderate), so there’s more than just a ripple. The wind stays clean all day, and for a sheltered spot like this, that’s a huge win. It’s still small, but for a beginner-friendly break, this is your best shot. The swell direction ain’t perfect for Big Wave Bay – they like it from the NE – so don’t expect it to be firing, but it’ll be the most fun you’ll have in this forecast period.
Tuesday the 28th still has some clean little waves in the morning, but the afternoon gets blown out by a strong 19 mph SW wind, and the swell period tanks to 5 seconds, which is just junky. After that, it’s back to flat and frustrating for the rest of the 16 days. Honestly, it’s a tough run. If you’re itchin’ for a paddle, make a plan for that Monday the 27th, but don’t expect any fireworks.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed morning. Warm (max 29°C on Mon afternoon, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 10 | S 6 | E 9 | E 9 | E 10 | E 10 | E 12 | E 10 | E 11 | ESE 6 | ESE 11 | ESE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 44 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 5 | 12 | 123 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | glassy | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:32AM1.20m | 12:08PM1.04m | 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 | |||||||
Low Tide | 7:16PM0.44m | 7:54AM0.70m | 7:42PM0.55m | 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 | ||||
 |  |  |  | | | |  | |  |  | | | | | | | | | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — |
 | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — |
mm | — | 1 | 2 | — | 1 | 3 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 30 | 29 |
Feels °C | 33 | 32 | 31 | 31 | 31 | 32 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 34 | 32 | 31 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | S 7 | E 9 | E 9 | E 9 | S 7 | E 8 | E 8 | S 6 | E 8 | E 9 | S 6 | S 6 | S 6 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | ESE 6 | ESE 10 |
| kJ | 70 | 2 | 2 | 2 | 71 | 1 | 1 | 52 | 1 | 2 | 24 | 20 | 20 | 20 | 15 | 15 | 16 | 9 | 3 | 123 |
Swell 2 Height (m) Direction Period (s) | E 9 | — | E 9 | E 9 | E 9 | E 8 | — | E 8 | E 10 | E 11 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | SE 5 | ESE 6 | ESE 11 | SSW 7 |
| kJ | 2 | — | 2 | 2 | 2 | 1 | — | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 3 | 12 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 9 | — | — | — | E 8 | — | — | — | — | — | E 12 | E 6 | E 11 | SE 11 | ESE 6 | — |
| kJ | — | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | 3 | 1 | 2 | 5 | 6 | — |
Wind waves Height (m) Direction Period (s) | — | S 7 | S 7 | S 6 | — | S 6 | S 6 | — | S 6 | S 6 | — | — | — | — | — | — | SW 2 | SW 3 | SSW 7 | SW 4 |
| kJ | — | 74 | 86 | 83 | — | 67 | 50 | — | 51 | 44 | — | — | — | — | — | — | 1 | 2 | 29 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 683 | 581 | 683 | 1507 | 670 | 670 | 683 | 656 | 670 | 670 | 820 | 656 | 1436 | 1053 | 670 | 1441 | 819 | 1043 | 1043 | 0 |
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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