
Surf Forecasts:
Big Beach surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 8PM (local time) - 5.5ft (1.7m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 8PM (local time) - 11ft (3.5m), 14s period, SW swell with 4,682 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 11PM (local time) - 3.5ft (1.1m), 13s period with S 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 (Sep 03) at 11PM. The primary swell is predicted to be 1.1m and 13s 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 3.5m 14s and forecast to arrive on Monday (Sep 07) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 6s period and expected on Monday (Sep 07) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 3rd Sep) | 3.5ft (1.1m) 13s |
| Best Surf | 8PM (Sun 6th Sep) | 5.5ft (1.7m) 13s |
| Most Powerful | 8PM (Mon 7th Sep) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it for Big Beach. The guidance tells us this spot is a consistent beginner-friendly zone that's fairly exposed with an optimum swell from the WSW, and it picks up a bit of the south pulse too. The water temp here is sitting at a balmy 81°F with a normal anomaly for this time of year.
We’ve got a bit of a wait on our hands. The first few days are a write-off. Thursday the 3rd is flat with a tiny 2ft south windswell (260 weak energy) under a fresh cross-offshore breeze – that’s just poor conditions and not worth paddling for.
Things start stirring on Friday the 4th as the swell builds to 5ft from the S with a solid 13-second period, but the forecast calls it marginal with a moderate cross-off breeze. The energy is moderate though (738). Saturday the 5th morning is where it starts to look interesting. You’ll get a clean 5ft from the SSW (12-second period) under a light cross-off breeze from the east. The combined energy is sitting at 691 – moderate – and the forecast says expect very good surf conditions. The light breeze will keep it tidy for the beginners and longboarders this spot is known for. That’s your first real window.
Sunday morning the 6th keeps the run going with a similar 6ft SSW swell (833 energy) and a light cross-off breeze again. Clean waves. But by Sunday afternoon, we’ve got a risk of thunderstorms and the wind picks up.
Now, pay attention. Monday the 7th is the standout. We’re looking at a proper pulse. Monday morning brings 8ft from the SW with a long 15-second period and a gentle cross-off breeze – energy is a whopping 3296 (strong). That’s a serious groundswell. Monday afternoon jumps to 12ft from the SW (14 seconds, energy 4952 – very strong). However, the wind swings to a gentle cross-shore from the SE, so there will be a touch of cross-chop. At 8ft to 12ft, this is for experienced surfers only. It’s going to be big, and with that long period (15 seconds Monday morning) it might be a bit too straight for the beach break, but the raw power will be there. If you’re an expert, that Monday morning window is your best bet.
After that, Tuesday the 8th sees the swell drop fast to 3ft SSW (15-second period) but the wind turns onshore/cross-onshore, making it choppy. Not great. The rest of the first week and into the second week fades away. From Wednesday the 9th, we're looking at small, weak surf (mostly 2ft to 3ft, energy dropping into the 100s) with cross-offshore winds, but the size just isn't there for a decent session.
There’s a slight flare-up Monday the 14th afternoon with a 2ft SW swell but with a very long 23-second period – that’s a tiny groundswell from a long way off, energy is 338. Offshore winds from the ENE will make it glassy, but it’s ankle-to-knee high.
So, bottom line: the only window with real punch is the first weekend and Monday the 7th. Saturday the 5th and Sunday the 6th morning give you clean, rideable waves for the average surfer. Monday the 7th morning is the big dog day for experts, but be ready for a heavy lineup due to the size. For the rest of the 16 days, it’s flat or too small to get excited about. This spot can be a bit fickle when the swell direction isn’t perfect, and right now it’s mostly a waiting game after that early pop.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 28°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 14 | S 13 | S 13 | S 12 | SSW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 14 | SW 15 | SW 14 | SW 12 | SSW 9 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
Wave Graph | ||||||||||||||||||||
195 | 485 | 726 | 679 | 446 | 579 | 655 | 703 | 808 | 464 | 1358 | 2708 | 4370 | 2373 | 468 | 449 | 356 | 269 | 257 | 178 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | off | off |
High Tide | 11:43AM0.48m | 12:54PM0.54m | 1:38PM0.58m | 00:39AM0.26m | 2:12PM0.61m | 1:38AM0.31m | 2:43PM0.62m | 2:23AM0.37m | 3:10PM0.62m | 3:05AM0.43m | ||||||||||
Low Tide | 1:46AM0.04m | 3:29AM0.05m | 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 | ||||||||||
— | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | |
mm | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 |
Feels °C | 27 | 23 | 26 | 25 | 24 | 29 | 27 | 27 | 29 | 28 | 29 | 30 | 29 | 28 | 31 | 31 | 30 | 29 | 28 | 25 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 12 | SSW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 14 | SW 15 | SW 14 | SW 12 | SSW 9 | SSW 8 | SW 8 | SSW 14 | SSW 13 | SSW 13 |
195 | 485 | 726 | 679 | 446 | 579 | 655 | 703 | 808 | 464 | 1358 | 2708 | 4370 | 2373 | 426 | 254 | 147 | 269 | 257 | 178 | |
Swell 2 Height (m) Direction Period (s) | E 13 | E 14 | E 14 | S 20 | E 14 | SSW 17 | SSW 18 | E 13 | E 12 | SW 14 | SSW 18 | SSW 17 | E 12 | SSW 15 | W 10 | SSW 14 | SSW 14 | SSW 8 | E 13 | E 13 |
112 | 329 | 439 | 8 | 626 | 112 | 64 | 771 | 668 | 434 | 432 | 510 | 661 | 604 | 318 | 449 | 356 | 74 | 171 | 168 | |
Swell 3 Height (m) Direction Period (s) | S 11 | SW 18 | SW 18 | — | SSW 20 | N 11 | SW 21 | S 12 | S 12 | SSW 19 | S 9 | S 9 | SSW 16 | ENE 11 | SSW 15 | W 9 | E 14 | E 13 | SSW 8 | SSW 7 |
65 | 12 | 12 | — | 38 | 2 | 18 | 45 | 25 | 274 | 26 | 78 | 582 | 259 | 468 | 74 | 198 | 176 | 39 | 21 | |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 14 | E 5 | E 13 | E 14 | E 4 | E 5 | E 12 | E 12 | E 12 | — | — | — | — | E 6 | E 5 | E 5 | E 6 |
233 | 245 | 144 | 1630 | 60 | 1110 | 1579 | 22 | 34 | 1031 | 1435 | 1275 | — | — | — | — | 52 | 41 | 45 | 117 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 44 | 30 | 30 | 2 | 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.










