Surf Forecasts:
Big Beach surf forecast from 6 Sep 2026:
- Best quality surf: Monday 7 Sep, 2AM (local time) - 4.5ft (1.3m), 12s period, SW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 11PM (local time) - 8ft (2.5m), 14s period, SW swell with 2,590 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 2AM (local time) - 4.5ft (1.3m), 11s 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 Sunday (Sep 06) at 2AM. The primary swell is predicted to be 1.3m and 11s period. 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 2.5m 14s and forecast to arrive on Monday (Sep 07) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 12s period and expected on Sunday (Sep 06) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 6th Sep) | 4.5ft (1.3m) 11s |
| Best Surf | 2AM (Mon 7th Sep) | 4.5ft (1.3m) 12s |
| Most Powerful | 11PM (Mon 7th Sep) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright, Rusty here again, in feet and miles.
The first few days are where the action is. After that, we go into a long, slow period. There’s a real gap from around Thursday the 10th through the middle of the following week, where the surf is tiny.
Best Bet: Big Beach – Monday morning, September 7th
This is the one. Monday morning brings a clean 6ft groundswell from the SW, with a 14-second period and moderate energy (1836). The cross-offshore breeze at 12 mph keeps the surface smooth. That size and period means solid, rideable waves. It’s a step up in power, so be aware. Beginners might find the bigger sets challenging.
Sunday, September 6th – A Nice Start
Sunday morning has clean 4ft SSW swell (11-second period, 636 energy) with a gentle cross-off breeze. Small but surfable. The afternoon picks up a bit in size to 5ft, but there’s a risk of storms.
Monday, September 7th – The Peak
Morning is best, but the afternoon builds to a punchy 7ft with that same long 14-second period. The energy jumps to 2538. The cross-off wind holds. This is a serious session. Not for beginners.
Tuesday, September 8th – Turning Onshore
Tuesday sees the swell hold around 8ft in the morning, but the period drops and the wind goes cross-onshore. Choppy conditions. The afternoon drops to 5ft with lighter wind, but the damage is done.
Wednesday, September 9th – Clean but Small
Clean conditions return with a light breeze, but the swell is down to 3ft. The long period (14 seconds) gives it shape, but it’s a small day.
The Long, Quiet Stretch – Thursday, September 10th to Saturday, September 12th
Thursday through Saturday are flat. We’re talking 2ft to 2ft. Clean, but barely a ripple. Energy readings are in the low hundreds. A proper lull.
Mid-Week Hopeful – Tuesday, September 15th
A small pulse of 2ft swell arrives, with a very long 20-second period. The energy is 450. Light winds should keep it glassy. It’s small, but that long period could make the most of it.
Late Period Glimmer – Friday, September 18th and Beyond
Friday the 18th shows 3ft swell, 18-second period, and clean offshore wind. Energy is back up to 629. Sunday the 20th offers a similar setup: 4ft SSW swell with gentle offshore wind in the morning. That’s the best late-period look, but it’s far out and could change.
Water temp is about normal for this time of year. Nothing unusual.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 28°C on Mon afternoon, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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) | SSW 11 | SSW 11 | SW 12 | SW 12 | SW 14 | SW 14 | WSW 14 | SW 11 | W 11 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 16 | SW 18 | SW 16 | SW 16 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 443 | 341 | 531 | 511 | 1238 | 1956 | 2403 | 1304 | 505 | 356 | 331 | 257 | 178 | 133 | 155 | 211 | 208 | 183 | 178 |
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 | cross | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 1:38PM0.58m | 00:39AM0.26m | 2:12PM0.61m | 1:38AM0.31m | 2:43PM0.62m | 2:23AM0.37m | 3:10PM0.62m | 3:05AM0.43m | 3:35PM0.60m | 3:44AM0.47m | 3:58PM0.56m | 4:23AM0.50m | |||||||
Low Tide | 5:16AM0.04m | 8:52PM0.15m | 6:28AM0.02m | 8:53PM0.13m | 7:22AM0.00m | 9:06PM0.11m | 8:08AM-0.00m | 9:24PM0.09m | 8:50AM0.01m | 9:44PM0.06m | 9:29AM0.04m | 10:04PM0.04m | |||||||
 |  |  |  |  | | |  | | | | |  | | | | | | | |
 | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | 6:37 | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — |
mm | — | — | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 25 | 26 | 26 | 25 |
Feels °C | 28 | 29 | 28 | 28 | 28 | 30 | 30 | 30 | 29 | 31 | 31 | 28 | 29 | 27 | 27 | 24 | 27 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | E 13 | SSW 11 | SW 12 | SW 12 | SW 14 | SW 14 | WSW 14 | SW 11 | W 11 | SW 8 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 16 | SW 16 | SW 15 | SW 15 |
| kJ | 759 | 341 | 531 | 511 | 1238 | 1956 | 2403 | 1304 | 505 | 192 | 331 | 257 | 178 | 133 | 93 | 211 | 208 | 183 | 178 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SW 16 | SSW 19 | SSW 18 | SSW 17 | ENE 12 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 8 | E 5 | E 12 | SW 16 | SW 18 | S 12 | SSW 12 | SSW 12 | SSW 11 |
| kJ | 443 | 251 | 277 | 432 | 589 | 425 | 612 | 498 | 449 | 356 | 82 | 30 | 104 | 133 | 155 | 70 | 46 | 45 | 25 |
Swell 3 Height (m) Direction Period (s) | SSW 17 | S 12 | S 12 | S 7 | S 11 | SSW 16 | ENE 11 | ENE 11 | S 8 | W 10 | E 13 | SW 7 | SW 7 | SSW 8 | SW 8 | SW 9 | SW 9 | SW 8 | SW 8 |
| kJ | 92 | 44 | 24 | 23 | 9 | 582 | 273 | 202 | 137 | 115 | 166 | 64 | 25 | 25 | 15 | 42 | 27 | 25 | 10 |
Wind waves Height (m) Direction Period (s) | E 5 | E 12 | E 12 | E 12 | E 12 | E 5 | E 5 | — | — | E 5 | E 5 | E 8 | E 5 | E 12 | E 5 | E 5 | E 12 | E 12 | E 11 |
| kJ | 60 | 1218 | 1256 | 1249 | 1313 | 51 | 19 | — | — | 21 | 71 | 138 | 57 | 383 | 89 | 77 | 333 | 390 | 396 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 11 | 0 | 0 | 90 | 0 | 30 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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