Surf Forecasts:
Big Beach surf forecast from 7 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11AM (local time) - 3ft (0.9m), 18s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.3m), 16s period, S swell with 879 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 11PM (local time) - 1.5ft (0.4m), 14s period with SSW swell.
Best Forecast Surf Conditions for Big Beach this week:
The surf forecast for Big Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 11PM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.3m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Big Beach in the next 16 days are 1.3m 16s and forecast to arrive on Thursday (Aug 13) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 6s period and expected on Sunday (Aug 09) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 6th Aug) | 1.5ft (0.4m) 14s |
| Best Surf | 11AM (Wed 12th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 2AM (Thu 13th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
G’day, it’s Rusty here. Let’s get into it. The next couple of weeks are a mixed bag – a slow start, a solid little pulse in the middle, and some cleaner, more consistent surf shaping up further out. Water temp is a normal 80° for this time of year, nothing weird going on there.
We start off at Big Beach with a flat spell. Thursday the 6th is practically dead – a weak 1ft of SW swell and rough conditions. Don’t even bother. Friday the 7th is still tiny at 1ft, but the ESE wind is glassy in the morning. It’s rideable, but nothing special. The weekend carries that small theme, with a touch more size on Sunday the 9th (2ft) and cleaner conditions in the a.m. The energy is slowly building, though.
The real standout lands on Wednesday the 12th of August. Swell bumps up to 3ft from the S, and the energy jumps to 761 – a huge leap from the moderate numbers we’ve been seeing. The period is a solid 18 seconds, so it’s proper groundswell. The morning is clean, but the afternoon is the pick: a moderate ENE offshore wind will have the faces holding up nicely. This is the day to circle.
After that, it eases back into the 3ft range on Thursday the 13th, still workable. The following Friday and into the weekend, the energy drops, but we get a return of solid offshore ENE winds on Saturday the 15th and Sunday the 16th. Swell is smaller, around 2-3ft, but those offshores will keep it clean and fun for a log.
The second week is a bit more speculative, but the light at the end of the tunnel is around Thursday the 20th of August. Thunderstorms are a risk, but the winds are offshore from the NE, and the swell direction swings back to the SW with a very long 21-second period. The energy is back up to 415, which looks promising. It’s a long-range call, but if it comes together, it could be the most lined-up swell of the fortnight. Just keep an eye on the radar.
The standout is Wednesday the 12th – it’s got the size, the period, and the clean afternoon wind. The 20th is the long-shot that could be a dark horse. Everything else is small and average, so don’t get your hopes up too high and you’ll have a good time.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sat afternoon, min 24°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Mon afternoon. Warm (max 28°C on Sun afternoon, min 25°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | SW 14 | SW 14 | SW 21 | SW 20 | SW 19 | SSW 18 | SSW 18 | SW 17 | SW 16 | S 17 | S 16 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 19 | S 18 | S 18 | S 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 52 | 102 | 74 | 100 | 96 | 133 | 124 | 148 | 132 | 147 | 131 | 179 | 250 | 246 | 280 | 265 | 273 | 509 | 492 | 879 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | off | off |
High Tide | 1:12PM0.51m | 1:58PM0.58m | 11:24PM0.25m | 2:37PM0.62m | 1:11AM0.27m | 3:13PM0.66m | 2:12AM0.31m | 3:46PM0.67m | 3:03AM0.35m | 4:17PM0.66m | 3:49AM0.38m | |||||||||
Low Tide | 3:56AM0.02m | 5:18AM0.00m | 9:53PM0.18m | 6:28AM-0.02m | 9:35PM0.16m | 7:25AM-0.05m | 9:50PM0.14m | 8:14AM-0.06m | 10:11PM0.12m | 8:59AM-0.05m | 10:35PM0.10m | |||||||||
 |  |  | |  | | | | | | | |  | | | | | | | | |
 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 27 | 27 | 26 | 28 | 29 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 28 | 25 | 30 | 29 | 27 | 28 | 28 | 26 | 31 | 28 | 28 | 31 | 31 | 29 | 29 | 28 | 27 | 29 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | E 5 | SSW 14 | SW 13 | SSW 14 | SSW 18 | SSW 13 | S 13 | S 17 | S 16 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 |
| kJ | 52 | 102 | 27 | 71 | 45 | 120 | 124 | 99 | 89 | 147 | 131 | 179 | 250 | 246 | 280 | 265 | 243 | 509 | 492 | 879 |
Swell 2 Height (m) Direction Period (s) | SSW 10 | S 11 | SSW 14 | SW 20 | SW 19 | SSW 18 | SW 13 | SW 17 | SW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | W 10 | SSW 21 | S 19 | SSW 13 | SSW 13 | W 12 |
| kJ | 19 | 21 | 74 | 100 | 96 | 133 | 43 | 148 | 132 | 86 | 83 | 85 | 50 | 40 | 8 | 84 | 273 | 222 | 218 | 11 |
Swell 3 Height (m) Direction Period (s) | S 11 | W 12 | SW 21 | S 11 | S 15 | SW 13 | SSW 14 | SSW 19 | SSW 18 | SW 16 | SW 16 | W 11 | W 10 | W 10 | S 21 | W 10 | W 13 | W 13 | W 13 | — |
| kJ | 22 | 11 | 71 | 20 | 39 | 27 | 68 | 69 | 102 | 66 | 64 | 20 | 19 | 18 | 36 | 8 | 30 | 30 | 13 | — |
Wind waves Height (m) Direction Period (s) | E 5 | E 5 | ENE 4 | E 5 | E 6 | E 6 | E 7 | E 6 | E 6 | E 6 | E 6 | E 8 | E 6 | E 6 | E 7 | E 7 | E 5 | E 5 | E 5 | E 5 |
| kJ | 25 | 43 | 40 | 90 | 101 | 125 | 179 | 175 | 184 | 401 | 256 | 262 | 229 | 157 | 155 | 210 | 104 | 62 | 77 | 112 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Maui | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Big Beach Surf forecast
The above surf forecast table for Big Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Beach can be found by selecting the local surf guide option on the grey menu. Our Big Beach 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 Beach) 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 Beach 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 vacation in Maui? If you are looking for accommodation near Big Beach, camping, hotels and condos and appartments in Maui, consider staying in Kihei which is 17 km (11 miles) away. Other places in and around Maui where you can find information about places to rent, and car hire include Wailuku which is 28 km (17 miles) away, Kahului, Lanai - Lanai and Kaunakakai - Molokai.
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