Surf Forecasts:
Big Beach surf forecast from 29 Aug 2026:
- Best quality surf: Friday 28 Aug, 8PM (local time) - 2.5ft (0.7m), 14s period, S swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 8AM (local time) - 3.5ft (1.0m), 16s period, S swell with 542 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 8PM (local time) - 2.5ft (0.7m), 14s 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 (Aug 28) at 8PM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.6m 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 1.0m 16s and forecast to arrive on Wednesday (Sep 02) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Saturday (Aug 29) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 28th Aug) | 2.5ft (0.7m) 14s |
| Best Surf | 8PM (Fri 28th Aug) | 2.5ft (0.7m) 14s |
| Most Powerful | 8AM (Wed 2nd Sep) | 3.5ft (1.0m) 16s |
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 the next couple of weeks at Big Beach. The water’s sitting at 81°F, which is right on the average for this time of year – nothing weird going on there.
The opening Friday the 28th is a bit of a tease. We’ve got a knee-high, 2ft swell from the S, but the energy is moderate at best (390). The real story is the clean, offshore NE breeze at 12 mph. That’s a good sign for a glassy surface, but honestly, the size is small. It’s surfable if you’re on a log, but it’s not setting the world on fire.
We hit a flat spell right after that. Saturday the 29th through Sunday the 30th are a write-off – poor conditions with barely a ripple. Monday the 31st sees a small 2ft SW swell creep in, but it’s not until Tuesday morning, September 1st, that things get interesting. That’s the standout of the near-term. We’ve got a 3ft SSW groundswell with a solid 18-second period, pushing moderate-strong energy (592). That long period means it’ll have some proper push, and with a light offshore ENE breeze at 9 mph, the waves should be clean and lined up. It’s a great window for a session.
From there, the week wobbles along. Wednesday the 2nd holds similar 3ft-3ft S swell, but the wind goes cross-offshore, so it’s still clean but a bit more textured. The energy stays strong (503-455), so there’s plenty of water moving. Thursday the 3rd keeps the fun going with a morning offshore NE breeze and a 3ft S swell (285).
The second week starts to drop off. Friday the 4th to Saturday the 5th goes small and ordinary, and Sunday the 6th is lackluster. Then, look out for Monday morning, September 7th. That is a gem. The swell is only 2ft from the SSW, but the period jumps back to 18 seconds and we get glassy conditions with a NNE breeze at 3 mph. Combined energy of 367 – solid for the size. That’ll be smooth, clean, and offering some long rides. It’s a short window for the perfectionist.
Tuesday morning, September 8th is one of the best bets of the whole outlook. We’ve got a 3ft SSW swell with a 16-second period, strong energy (532), and a gentle offshore breeze. That’s the kind of morning you wake up early for. The wave size doesn’t exceed the 5ft mark, so it’s still friendly for intermediates.
We finish off the forecast with some smaller, cleaner pulses around the 9th and 10th, but then on Friday the 11th the wind swings onshore (SSW) and kills the quality. The swell jumps to 4ft, but with onshore wind, it’s messy. The last few days from the 12th just dribble away into knee-high leftovers.
Overall, if you’re picking a day, September 1st (morning) and September 8th (morning) are the top calls. The 1st has the biggest energy for the period, and the 8th offers the best combo of size and clean wind. For a longer board session, the 7th morning is a glassy treat. Get out there while the offshore wind holds.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 28°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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 | SW 17 | SSW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SSW 19 | S 19 | SSW 18 | S 18 | S 17 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 |
Wave Graph | ||||||||||||||||||||
206 | 126 | 115 | 84 | 190 | 129 | 112 | 112 | 109 | 122 | 270 | 528 | 311 | 351 | 422 | 482 | 275 | 268 | 250 | 229 | |
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 | off | off | off | off | off | cross-off | off | cross-off | cross-off | off | off | off | off |
High Tide | 4:18PM0.58m | 4:13AM0.44m | 4:37PM0.55m | 4:53AM0.46m | 4:55PM0.52m | 5:38AM0.47m | 5:10PM0.47m | 6:30AM0.46m | 5:21PM0.42m | 7:37AM0.45m | 5:16PM0.38m | 9:24AM0.45m | ||||||||
Low Tide | 10:24PM0.07m | 9:57AM0.04m | 10:47PM0.05m | 10:31AM0.08m | 11:10PM0.04m | 11:08AM0.12m | 11:37PM0.02m | 11:49AM0.18m | 00:08AM0.02m | 12:45PM0.23m | 00:47AM0.03m | 1:46AM0.04m | ||||||||
— | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 27 | 25 | 27 | 28 | 26 | 27 | 28 | 26 | 27 | 28 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 27 | 25 | 28 | 28 | 25 | 27 | 27 | 25 | 27 | 28 | 26 | 29 | 27 | 26 | 28 | 27 | 27 | 27 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | S 13 | S 13 | S 13 | SSW 17 | SW 16 | SW 15 | S 11 | S 11 | S 11 | S 19 | SSW 18 | S 18 | S 17 | S 16 | S 16 | S 15 | S 14 | E 9 | S 13 |
184 | 126 | 115 | 81 | 190 | 129 | 112 | 84 | 82 | 55 | 270 | 528 | 311 | 351 | 422 | 482 | 275 | 268 | 93 | 229 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | E 13 | S 13 | S 12 | SSW 12 | S 12 | SW 15 | SW 15 | SSW 19 | S 10 | SW 14 | S 12 | S 11 | S 10 | E 14 | E 13 | E 13 | S 14 | E 12 |
206 | 89 | 87 | 84 | 71 | 48 | 68 | 112 | 109 | 122 | 32 | 52 | 80 | 35 | 33 | 66 | 87 | 112 | 250 | 100 | |
Swell 3 Height (m) Direction Period (s) | E 15 | E 14 | S 13 | SW 17 | SSW 12 | ENE 11 | SSW 12 | SSW 19 | SSW 18 | SW 14 | SW 14 | W 12 | SW 14 | SW 14 | E 12 | S 11 | S 10 | S 10 | E 12 | W 9 |
67 | 93 | 55 | 75 | 47 | 40 | 29 | 72 | 108 | 54 | 49 | 12 | 51 | 51 | 27 | 21 | 35 | 17 | 103 | 2 | |
Wind waves Height (m) Direction Period (s) | E 5 | E 6 | E 6 | E 6 | E 6 | E 7 | E 6 | E 6 | E 5 | E 6 | E 6 | E 8 | E 6 | E 8 | ENE 8 | E 8 | E 6 | E 9 | E 5 | E 9 |
51 | 121 | 154 | 214 | 134 | 135 | 178 | 117 | 106 | 187 | 141 | 270 | 205 | 234 | 107 | 103 | 158 | 304 | 40 | 318 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 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.











