Surf Forecasts:
Big Beach surf forecast from 15 Aug 2026:
- Best quality surf: Sunday 16 Aug, 11AM (local time) - 6ft (1.8m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 5AM (local time) - 10ft (3.0m), 9s period, S swell with 1,150 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 11AM (local time) - 6ft (1.8m), 8s 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 Sunday (Aug 16) at 11AM. The primary swell is predicted to be 1.8m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Big Beach in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Aug 16) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.0m 11s period and expected on Saturday (Aug 15) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 16th Aug) | 6ft (1.8m) 8s |
| Best Surf | 11AM (Sun 16th Aug) | 6ft (1.8m) 8s |
| Most Powerful | 5AM (Sun 16th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright, Rusty here, checking in on the ol’ region. Let’s see what we’ve got cookin’.
Look, I’ll be straight with you – the next couple of days are a bit of a write-off. We’re looking at a quiet period with not much to get excited about. The real story starts to build later on, but for now, patience is the name of the game.
Right now, it’s Saturday the 15th and we’re dealing with a howling onshore breeze at Big Beach. That wind is howling at 28 mph, which is just killing any chance of a decent wave despite there being a bit of swell around. It’s a skip. Sunday the 16th morning is where we see a glimmer of hope. The wind switches to a light cross-offshore breeze, and the swell bumps up a bit. We get a clean 6 ft swell from the south at 8 seconds. The wave energy is moderate but solid (708). It’s not massive, but it’ll be the best we’ve seen in days. After that, the week settles into a pretty ordinary run. From Monday the 17th through to the 24th, we’re looking at very small, clean waves – think 2 ft to 2 ft. The wind is generally light and offshore or cross-offshore, which is lovely for the soul, but there’s just not enough juice in the water to make it worthwhile. There’s a lot of clean, surfable but very ordinary conditions in that stretch. The water temp feels about average for this time of year.
Now, keep your eyes peeled on Tuesday the 25th. That’s when things get interesting. We see a pulse of longer period SSW groundswell coming in. Tuesday morning has a 2 ft swell at 16 seconds, but the combined energy is already kicking up to 382. By Wednesday the 26th, it gets even better. Expect clean 2 ft waves from the south with a very long period of 19 seconds and strong wave energy (636). That’s quality groundswell. The wind light and cross-offshore. This setup is better suited for a point break or reef, as that long period stuff can be a bit too straight for a beach break. But if you can find a bank, it’ll be worth the paddle out. The moderate energy (417) continues into Tuesday afternoon and Wednesday. This stretch from the 25th to the 27th is your standout window.
From Thursday the 27th onward, we taper off again. The 28th has some clean 3 ft waves with moderate energy (357), but it starts to drop. We get more small clean days through the end of the month. For a beginner, anything over 5 ft is a bit much, and we don’t really hit that, so it’s all fairly manageable. The standouts really are the 25th and 26th for the quality groundswell. Get on it if you can.
Rusty.
Short Range ForecastHeavy rain (total 95mm), heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 25°C on Sat night). Winds decreasing (near gales from the ENE on Sat night, light winds from the E by Sun afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 10 | S 8 | S 13 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | SW 18 | SW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SW 16 |
Wave Graph | |||||||||||||||||||
293 | 225 | 225 | 1026 | 378 | 168 | 347 | 333 | 257 | 173 | 119 | 119 | 82 | 69 | 71 | 129 | 207 | 202 | 278 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | off | off | off | off | cross-off | off | off |
High Tide | 5:20AM0.42m | 5:33PM0.53m | 6:07AM0.42m | 5:49PM0.48m | 7:00AM0.41m | 5:58PM0.42m | 8:09AM0.40m | 5:51PM0.38m | 10:09AM0.39m | 12:36PM0.42m | |||||||||
Low Tide | 11:25PM0.07m | 10:57AM0.06m | 11:49PM0.06m | 11:35AM0.12m | 00:14AM0.06m | 12:13PM0.17m | 00:39AM0.06m | 1:00PM0.23m | 1:08AM0.06m | 1:51AM0.07m | 3:14AM0.08m | ||||||||
— | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
6:55 | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | |
mm | 3 | 7 | 1 | 78 | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 26 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 27 | 25 | 25 | 29 | 31 | 31 | 31 | 28 | 29 | 26 | 29 | 28 | 27 | 29 | 29 | 27 | 30 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 10 | S 8 | S 7 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | E 8 | S 12 | E 8 | SW 16 | SSW 18 | E 8 | SW 16 |
293 | 225 | 225 | 1026 | 378 | 135 | 347 | 333 | 257 | 173 | 119 | 119 | 69 | 69 | 104 | 129 | 207 | 41 | 278 | |
Swell 2 Height (m) Direction Period (s) | W 11 | W 11 | W 11 | S 18 | E 9 | S 13 | S 6 | SW 18 | SSW 19 | W 11 | SW 17 | SW 18 | S 13 | SW 16 | S 12 | S 12 | S 12 | SSW 17 | S 15 |
10 | 9 | 10 | 99 | 389 | 168 | 35 | 50 | 37 | 10 | 74 | 79 | 82 | 67 | 71 | 45 | 25 | 202 | 38 | |
Swell 3 Height (m) Direction Period (s) | SSW 17 | S 20 | SW 16 | W 13 | S 16 | S 16 | W 11 | W 11 | W 11 | SSW 19 | W 11 | S 7 | SW 18 | W 12 | SW 16 | W 11 | S 16 | E 4 | S 11 |
30 | 30 | 10 | 13 | 330 | 127 | 23 | 10 | 10 | 37 | 9 | 9 | 79 | 25 | 65 | 10 | 20 | 8 | 21 | |
Wind waves Height (m) Direction Period (s) | E 12 | E 10 | E 10 | E 10 | E 9 | E 8 | E 8 | E 7 | E 6 | E 5 | E 5 | E 9 | E 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
1680 | 3164 | 3698 | 2457 | 645 | 529 | 320 | 242 | 158 | 108 | 60 | 145 | 19 | 160 | 157 | 148 | 113 | 115 | 84 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 103 | 103 | 122 | 90 | 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 | |||||||||||||||||||
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.











