Surf Forecasts:
Big Beach surf forecast from 6 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 5AM (local time) - 2.5ft (0.8m), 19s period, S swell with offshore winds.
- Most powerful swell: Wednesday 12 Aug, 11AM (local time) - 3.5ft (1.0m), 18s period, S swell with 627 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 11PM (local time) - 1.5ft (0.4m), 15s 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 Wednesday (Aug 05) at 11PM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.4m and 12s. 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 1.0m 18s and forecast to arrive on Wednesday (Aug 12) at 11AM. 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 7s period and expected on Sunday (Aug 09) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 5th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 5AM (Wed 12th Aug) | 2.5ft (0.8m) 19s |
| Most Powerful | 11AM (Wed 12th Aug) | 3.5ft (1.0m) 18s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.
Gotta be straight with you – the start of this run is a bit of a slow burner. We’re looking at a few days of tiny, weak surf before the real energy shows up. For the first few days, the swell is only around 1 feet, so it’s not going to get anyone too excited. The combined swell energy is really low, under 100 (92) at first, so it’s pretty weak. The water temp is a lovely 80°F, which is about average for this time of year, so at least you won’t need a hood.
The first real standout window starts to shape up from Sunday, August 9th through Tuesday, August 11th. The swell ticks up a bit, and the conditions look clean. Big Beach will be the spot to be. The swell is holding steady from the SSW at 2 feet to 3 feet, with a decent period, and the wind is either light cross-off or glassy. This is where the moderate energy kicks in (323 to 420), and the waves will have some shape. It’s a very consistent break, so you’ll get waves, but it can get crowded sometimes, so get there early.
Now, the absolute best on offer is Wednesday, August 12th and Thursday, August 13th. The swell picks up to 3 feet from the S, with a long period of 16 to 18 seconds. This is groundswell energy, and the combined energy jumps to 857 (strong) on Wednesday morning. That’s proper punch. The wind is light offshore on Wednesday morning, making it glassy. The catch is, with a period that long, Big Beach – a fairly exposed beach break – can get a bit straight and walled-up. It’s better for the more experienced crew. For beginners, that 3 feet plus with long period might be a bit much.
After that peak, the swell drops back down through the second week. From Friday, August 14th onward, we’re back to marginal, smaller surf, and the wind fills in from the east, making it choppy. There’s a little glimmer on Monday, August 17th with a clean, moderate offshore wind and 2 feet of swell, but it's not the same as that mid-week pulse.
So, to sum it up: the first few days are a write-off unless you’re on a longboard. The real action is Sunday the 9th through Thursday the 13th, with Wednesday the 12th and Thursday the 13th being the standouts for the bigger, cleaner, more powerful surf. Get on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat morning, min 25°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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) | S 12 | SW 14 | SW 14 | SW 14 | SSW 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 |
Wave Graph  | ||||||||||||||||||||
 kJ | 46 | 50 | 50 | 53 | 81 | 74 | 100 | 96 | 133 | 124 | 147 | 132 | 147 | 131 | 179 | 250 | 246 | 276 | 265 | 369 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | off | glassy | cross-off | off | cross-off | cross-off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | off |
High Tide | 6:20PM0.38m | 11:56AM0.44m | 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 | |||||||||
Low Tide | 2:41AM0.03m | 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 | ||||||||||
 |  |  | | | | | | | | | |  |  | | |  | | |  | |
 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 1 | — | — | — |
Temp °C | 27 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 28 | 29 | 26 | 27 | 28 | 26 | 27 | 27 | 27 | 27 | 28 | 26 |
Feels °C | 28 | 27 | 28 | 29 | 26 | 30 | 30 | 27 | 28 | 29 | 26 | 29 | 30 | 28 | 30 | 28 | 29 | 29 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | SSW 11 | SW 14 | E 5 | SSW 14 | SSW 14 | 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 |
| kJ | 45 | 22 | 50 | 22 | 81 | 74 | 71 | 45 | 120 | 124 | 99 | 89 | 147 | 131 | 179 | 250 | 246 | 276 | 265 | 243 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | S 12 | SSW 10 | SW 14 | S 11 | SW 21 | SW 20 | SW 19 | SSW 18 | SW 13 | SW 17 | SW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | S 21 | SSW 21 | S 19 |
| kJ | 46 | 25 | 18 | 53 | 21 | 71 | 100 | 96 | 133 | 43 | 147 | 132 | 85 | 83 | 85 | 50 | 23 | 81 | 147 | 369 |
Swell 3 Height (m) Direction Period (s) | S 12 | SW 14 | ENE 8 | SSW 10 | W 12 | ENE 8 | S 11 | S 15 | SW 13 | SSW 14 | SSW 19 | SSW 18 | SW 16 | SW 16 | SSE 9 | W 10 | W 10 | W 10 | W 10 | W 10 |
| kJ | 46 | 50 | 13 | 19 | 11 | 6 | 20 | 39 | 27 | 68 | 69 | 102 | 66 | 64 | 17 | 19 | 18 | 18 | 8 | 18 |
Wind waves Height (m) Direction Period (s) | E 4 | E 5 | E 5 | E 8 | E 5 | E 5 | E 5 | E 6 | E 6 | E 7 | E 6 | E 7 | E 8 | E 6 | E 8 | E 5 | E 8 | E 8 | E 8 | E 5 |
| kJ | 8 | 60 | 37 | 118 | 83 | 35 | 48 | 125 | 125 | 126 | 365 | 401 | 407 | 229 | 196 | 111 | 159 | 133 | 111 | 104 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 2 | 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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