Surf Forecasts:
Big Beach surf forecast from 14 Aug 2026:
- Best quality surf: Friday 14 Aug, 5AM (local time) - 3.5ft (1.1m), 15s period, S swell with offshore winds.
- Most powerful swell: Friday 14 Aug, 5AM (local time) - 3.5ft (1.1m), 15s period, S swell with 522 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 5AM (local time) - 3.5ft (1.1m), 15s 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 14) at 5AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 0.2m and 11s. 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 1.1m 15s and forecast to arrive on Friday (Aug 14) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 10s period and expected on Sunday (Aug 16) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 14th Aug) | 3.5ft (1.1m) 15s |
| Best Surf | 5AM (Fri 14th Aug) | 3.5ft (1.1m) 15s |
| Most Powerful | 5AM (Fri 14th Aug) | 3.5ft (1.1m) 15s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright, let me tell ya how it’s looking for Big Beach.
We’ve got a bit of a slow start here, but the story picks up nicely later on. The first real action comes Friday morning, August 14th. We’re looking at a clean 4ft south swell, with a solid 14-second period pushing some moderate energy into the beach (531). The wind is a gentle offshore breeze from the NE, so it’ll be glassy and clean. This is a beginner-friendly setup, but the swell is small enough for anyone to have a go. The water temp is about average for the time of year, so no surprises there.
The afternoon gets a bit lumpy as the wind picks up and turns cross-offshore, but the swell drops a touch. Saturday morning, the 15th, sees a fresh offshore wind, but it’s strong enough to make paddling a chore, and the swell is down to 3ft. The energy is moderate (264). It’s clean, but not easy.
The rest of the first week and into the second is pretty ordinary. Through the 16th to the 23rd, we’re mostly looking at waist-high or smaller surf, with periods ranging from 12 to 18 seconds and moderate energy levels. The wind is often cross-off or glassy, which keeps it clean, but the wave heights are pretty gutless – mostly 2ft to 2ft. There’s a long-period groundswell from the SSW on the 20th and 21st, but it’s just too small to get excited about. The 16th has a big 16-second period, but it’s a messy cross-shore wind that day.
Then things start to turn around. The standout is Monday morning, August 24th. The swell is still small at 3ft, but it’s a clean SSW groundswell (14 seconds) with moderate energy (297) and a gentle offshore NE wind. The conditions will be clean and fun for a log or a longboard.
But the real highlight – the best on offer – is Tuesday morning, August 25th. The swell jumps a bit in period to 16 seconds, with a solid 415 energy reading from the SSW. The height is still only 2ft, but that long-period groundswell will wrap in nicely with a gentle offshore breeze. For a point break or reef setup, this would be magic, but at Big Beach, a beach break, that long period might make it a bit straight. Still, it’s the cleanest, most promising window in the whole forecast.
Wednesday the 26th and Thursday the 27th keep the trend going with moderate offshore winds and 3ft to 3ft SSW swell, offering consistent, clean surf. The energy stays moderate (433 on Wednesday morning). Friday the 28th and Saturday the 29th round out the forecast with similar clean, small conditions.
If you’re a beginner, the morning of the 14th is your best bet. For everyone else, aim for the 24th through the 27th. The surf won’t be big, but it’ll be clean and fun. Remember, this is a long-range call for the later dates, so keep an eye on the wind.
Rusty.
Short Range ForecastHeavy rain (total 33mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 25°C on Thu night). Winds decreasing (near gales from the ENE on Sat night, light winds from the SE by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 27°C on Sun night, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 16 | S 13 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | SW 16 | S 12 | SW 16 |
Wave Graph | |||||||||||||||||||
636 | 508 | 411 | 293 | 225 | 222 | 192 | 330 | 168 | 347 | 333 | 257 | 167 | 123 | 119 | 117 | 69 | 71 | 129 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | off | off | cross-off | cross | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | off | off |
High Tide | 4:34AM0.41m | 5:11PM0.59m | 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 | ||||||||
Low Tide | 11:00PM0.09m | 10:19AM0.01m | 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 | |||||||
— | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
6:55 | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | |
mm | — | — | — | 1 | 2 | — | 21 | 6 | 3 | 1 | 2 | 2 | — | — | — | — | — | — | — |
Temp °C | 26 | 29 | 28 | 26 | 28 | 27 | 27 | 27 | 28 | 27 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 26 | 30 | 28 | 26 | 26 | 24 | 22 | 28 | 31 | 30 | 28 | 29 | 27 | 27 | 28 | 27 | 29 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 8 | S 7 | S 15 | S 14 | S 14 | S 13 | S 13 | E 8 | S 13 | S 12 | E 4 | SW 16 |
636 | 508 | 411 | 293 | 225 | 222 | 192 | 169 | 99 | 347 | 333 | 257 | 167 | 123 | 109 | 117 | 69 | 20 | 129 | |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | S 18 | S 16 | S 13 | S 6 | S 6 | SSW 5 | W 11 | SW 17 | S 13 | SW 18 | SW 16 | E 8 | S 12 |
11 | 10 | 11 | 10 | 9 | 10 | 99 | 330 | 168 | 36 | 16 | 5 | 10 | 74 | 119 | 79 | 67 | 45 | 45 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 18 | SSW 17 | SSW 17 | S 20 | SW 16 | W 13 | W 12 | S 16 | W 11 | SW 18 | W 11 | SSW 5 | W 11 | SW 18 | W 12 | W 12 | S 12 | W 11 |
13 | 13 | 30 | 30 | 30 | 10 | 30 | 26 | 127 | 23 | 50 | 10 | 2 | 9 | 79 | 26 | 25 | 71 | 10 | |
Wind waves Height (m) Direction Period (s) | E 6 | E 9 | E 11 | E 12 | E 11 | E 8 | E 10 | E 9 | E 8 | E 8 | E 7 | E 7 | E 5 | E 5 | E 8 | E 8 | E 8 | E 8 | E 8 |
264 | 528 | 1168 | 1784 | 2020 | 1837 | 5698 | 915 | 529 | 277 | 269 | 212 | 86 | 52 | 157 | 132 | 156 | 127 | 97 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 0 | 11 | 103 | 11 | 103 | 11 | 195 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 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.











