Surf Forecasts:
Big Beach surf forecast from 9 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11AM (local time) - 3.5ft (1.0m), 18s period, S swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.4m), 16s period, S swell with 1,017 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 2AM (local time) - 1.5ft (0.5m), 17s period with SW 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 Sunday (Aug 09) at 2AM. The primary swell is predicted to be 0.5m and 17s period with a secondary swell of 0.5m and 13s. 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 1.4m 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 11s period and expected on Sunday (Aug 16) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 1.5ft (0.5m) 17s |
| Best Surf | 11AM (Wed 12th Aug) | 3.5ft (1.0m) 18s |
| Most Powerful | 2AM (Thu 13th Aug) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Hey, Rusty here. Let's break down the next couple weeks for Big Beach.
It starts off pretty sleepy. You got some small, clean waves for the groms and longboarders, but not much punch for a few days.
The real magic window is Wednesday the 12th through Friday the 14th. Wednesday morning is the one to circle on your calendar. We're looking at a solid 3ft south swell with a long 18-second period – that's proper groundswell, tons of energy. The combined energy is strong (879), and with a light offshore breeze from the NE, Big Beach is going to be clean as a whistle. That's expert territory with that size and period. Expect a few other folks in the lineup, 'cause word gets out.
Thursday the 13th keeps it cooking, with the swell holding around 4ft to 4ft from the south, and offshore winds still grooming the faces. Energy is still very strong (717 to 669). Friday morning still has some rideable swell, but the wind shifts a bit cross-off, and the energy drops. Still got some fun waves, just not that Wednesday perfection.
Then things fall apart. From Sunday the 16th onward, it's mostly poor with onshore and cross-shore winds, or just tiny, weak energy. There's one glassy moment on the morning of Tuesday the 18th, but with only 2ft of swell and low energy (194), it's just small, weak rollers.
The second week is pretty flat and quiet overall. You get a few cleaner windows around the 20th and 21st with some offshore wind, but the swell is tiny (1ft to 2ft) and the energy is low. Nothing to write home about.
Bottom line: your best bet is Wednesday the 12th through Friday the 14th. If you can only do one, make it Wednesday morning for the cleanest, most powerful swell. After that, it’s a long stretch of small stuff.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 28°C on Sun morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 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 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 147 | 132 | 147 | 131 | 179 | 250 | 186 | 280 | 269 | 273 | 627 | 606 | 1017 | 597 | 644 | 627 | 508 | 411 | 361 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | off | off | off | off | cross-off | off | off |
High Tide | 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 | 4:46PM0.63m | 4:34AM0.41m | 5:11PM0.59m | |||||||
Low Tide | 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 | 9:40AM-0.03m | 11:00PM0.09m | 10:19AM0.01m | 11:25PM0.07m | ||||||
 |  |  |  | | | |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 6:59 | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 26 | 28 | 28 | 26 | 27 | 28 | 25 | 27 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 27 | 31 | 29 | 27 | 30 | 28 | 26 | 27 | 28 | 25 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | S 17 | S 16 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 18 | E 8 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 |
| kJ | 99 | 99 | 147 | 131 | 179 | 250 | 186 | 280 | 269 | 243 | 627 | 144 | 1017 | 597 | 644 | 627 | 508 | 411 | 361 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | W 10 | SSW 21 | S 19 | SSW 13 | S 18 | W 12 | SSW 12 | W 12 | W 12 | W 12 | W 12 | W 11 |
| kJ | 147 | 132 | 85 | 83 | 85 | 50 | 23 | 8 | 85 | 273 | 222 | 606 | 11 | 109 | 11 | 11 | 10 | 11 | 10 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SW 16 | SW 16 | W 11 | W 10 | W 10 | S 21 | W 10 | W 13 | W 13 | SSW 13 | — | W 12 | SW 19 | SW 18 | SW 18 | SSW 17 | SSW 17 |
| kJ | 69 | 102 | 66 | 64 | 20 | 19 | 8 | 36 | 8 | 30 | 30 | 218 | — | 11 | 14 | 13 | 12 | 30 | 30 |
Wind waves Height (m) Direction Period (s) | E 6 | E 8 | E 8 | E 6 | E 8 | E 8 | E 5 | E 8 | E 8 | E 5 | E 8 | E 8 | E 6 | E 6 | E 6 | E 8 | E 9 | E 9 | E 10 |
| kJ | 212 | 282 | 252 | 184 | 246 | 208 | 124 | 163 | 164 | 90 | 144 | 196 | 117 | 105 | 258 | 230 | 381 | 440 | 552 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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)
Latest Updates
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 Beach 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 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.
Nearest