
Surf Forecasts:
Big Beach surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 8AM (local time) - 6ft (1.8m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 8PM (local time) - 8ft (2.5m), 14s period, SW swell with 2,834 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 8PM (local time) - 4.5ft (1.4m), 12s 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 Friday (Sep 04) at 8PM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.2m and 20s. 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 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 12s period and expected on Monday (Sep 07) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 4th Sep) | 4.5ft (1.4m) 12s |
| Best Surf | 8AM (Mon 7th Sep) | 6ft (1.8m) 13s |
| Most Powerful | 8PM (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. Let’s have a look at what’s cooking for Big Beach.
First up, the water is sitting at 81°F which is bang on average for this time of year, so nothing weird there. The real story is that we’ve got a long, drawn-out run of surf, but it’s a bit of a tease. The best window is gonna be the first few days, with a real standout right at the start. Friday afternoon kicks things off with a solid 5ft swell from the south, a 12-second period, and a nice offshore breeze out of the NE. That’s clean, punchy, and the combined energy is sitting at 741 (moderate). That’s your best bet for the whole outlook – it’s not huge, but it’s well-shaped and the wind is doing you a favour. Saturday morning follows up with a touch more size at 5ft from the SSW, still a 12-second period, and a light E breeze that’s cross-off, so it’s clean. The energy bumps up to 769 (moderate). That’s a close second, but the Friday afternoon has the edge on wind.
Sunday sees the swell drop a little and the wind stays cross-off, but it’s still clean. Nothing to write home about, but it’s surfable. Then Monday is where things get interesting again. Monday afternoon brings a 8ft SSW swell with a 14-second period and the combined energy jumps to 2807 (strong). That’s a proper groundswell. The wind is a gentle cross-off from the ESE, so it’s clean. But here’s the thing – that size is pushing into expert territory, and given the long period, it’s gonna be powerful and a bit straight at a beach break like Big Beach. It’ll be a handful, but if you’ve got the skills, Monday afternoon is the biggest and most powerful wave of the whole window. That’s your second standout.
After that, the swell fades fast. Tuesday morning is still 5ft but the wind swings cross-on from the south, so it gets choppy. Not great. From Wednesday onward, the swell drops below 3ft and the periods get longer, but the energy drops off a cliff. There’s a long gap of mid-to-late week where the surf is just ordinary – small, weak, and not doing much. A couple of days in the second week, like the 15th and 16th, see a little bump back up to 2ft – 3ft with long periods (18-21 seconds), but the energy is still moderate at best (486, 534). The wind is light to moderate cross-off, so it’s clean, but it’s small and slow. The 18th and 19th are similar, with 3ft SSW swells and light winds, making for clean but small waves. Consistency is decent, but nothing is firing.
So, the bottom line: Friday afternoon and Monday afternoon are the two standouts. Friday is the pick for a fun, clean session that won’t beat you up. Monday is for the big-wave crew only. The rest is small and clean, but you’ll be working for it.
Rusty, signing off.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 28°C on Mon morning, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 29°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SW 11 | SW 14 | SW 14 | SW 14 | SW 13 | WSW 11 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 16 | SSW 13 | SW 16 |
Wave Graph | ||||||||||||||||||||
702 | 589 | 706 | 614 | 386 | 335 | 283 | 799 | 1220 | 2232 | 2107 | 634 | 449 | 356 | 269 | 257 | 176 | 133 | 93 | 211 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 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 | 3:35PM0.60m | 3:44AM0.47m | |||||||||
Low Tide | 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 | 8:50AM0.01m | 9:44PM0.06m | |||||||||
— | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | |
mm | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 29 | 26 | 27 | 28 | 25 |
Feels °C | 26 | 26 | 28 | 28 | 28 | 28 | 28 | 28 | 30 | 29 | 30 | 31 | 31 | 31 | 31 | 30 | 26 | 26 | 27 | 24 |
Swell 1 Height (m) Direction Period (s) | S 12 | SSW 12 | SSW 12 | SSW 12 | E 13 | E 12 | E 12 | SW 14 | SW 14 | SW 14 | SW 13 | WSW 11 | SSW 8 | SW 8 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | E 6 | SW 16 |
702 | 589 | 706 | 614 | 663 | 613 | 488 | 799 | 1220 | 2232 | 2107 | 634 | 255 | 140 | 269 | 257 | 176 | 131 | 60 | 211 | |
Swell 2 Height (m) Direction Period (s) | SSW 20 | E 14 | E 13 | E 14 | SSW 11 | SSW 11 | SW 11 | SSW 18 | SSW 17 | ENE 12 | ENE 12 | SSW 15 | W 10 | SSW 14 | SSW 8 | SSW 8 | SSW 8 | SW 16 | E 11 | S 12 |
39 | 626 | 572 | 714 | 386 | 335 | 283 | 432 | 589 | 439 | 361 | 498 | 302 | 356 | 69 | 51 | 23 | 133 | 93 | 72 | |
Swell 3 Height (m) Direction Period (s) | — | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SW 14 | S 11 | S 7 | SSW 16 | SSW 15 | S 8 | SSW 14 | E 14 | E 13 | E 13 | SW 16 | E 12 | SSW 13 | SSW 7 |
— | 38 | 63 | 63 | 92 | 89 | 164 | 21 | 61 | 575 | 612 | 115 | 449 | 181 | 168 | 119 | 41 | 71 | 93 | 5 | |
Wind waves Height (m) Direction Period (s) | E 14 | E 5 | E 5 | E 5 | E 5 | E 5 | E 5 | E 12 | ENE 12 | E 5 | — | S 8 | — | E 9 | E 5 | E 5 | E 6 | E 5 | ENE 7 | E 5 |
1472 | 57 | 27 | 20 | 60 | 55 | 55 | 1136 | 1155 | 42 | — | 161 | — | 94 | 62 | 57 | 158 | 92 | 294 | 121 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 34 | 0 | 30 | 30 | 30 | 0 | 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)
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.










