Surf Forecasts:
Big Beach surf forecast from 14 Aug 2026:
- Best quality surf: Friday 14 Aug, 8PM (local time) - 3.5ft (1.0m), 14s period, S swell with offshore winds.
- Most powerful swell: Sunday 16 Aug, 11AM (local time) - 3ft (0.9m), 16s period, S swell with 417 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 8PM (local time) - 3.5ft (1.0m), 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 14) at 8PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.2m and 12s. 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 0.9m 16s and forecast to arrive on Sunday (Aug 16) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 10s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 14th Aug) | 3.5ft (1.0m) 14s |
| Best Surf | 8PM (Fri 14th Aug) | 3.5ft (1.0m) 14s |
| Most Powerful | 11AM (Sun 16th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright, I’m Rusty, and I’ve been staring at the charts for Big Beach. Let’s be real right off the bat: this is not a period for charging. The surf is a bit of a tease – small, clean, and consistent, but lacking the real punch to get the heart racing. That said, if you’re a beginner or just want to log some smooth, easy waves, there’s a window that’s worth your time.
Friday morning, August 14th, is where it peaks. We’re looking at a 3.6ft south swell, with a period of 14 seconds, giving us a solid groundswell feel. The combined energy is moderate (531), and with a 12 mph NE offshore wind, it’s going to be super clean. Water temp is a balmy 80.6°, which is pretty much spot on for this time of year. This is the best of the bunch for sure.
The rest of the first week trails off quickly. Saturday, August 15th, drops to 2.6ft and gets a stiff 22 mph ENE wind, which, while offshore, is a bit strong for ideal conditions. The energy drops to 264. Sunday, August 16th, has a longer period south swell (16 seconds, 588 energy) but it’s a cross-off wind and the height is only 3ft, making it feel a bit disjointed for a beach break. The next few days, from Monday through Friday, August 21st, are all in the 1.6ft to 2.6ft range with clean but weak conditions. The energy sits between 161 and 336. Not terrible, but nothing to write home about.
Then, we get a bit of a hopeful shift. Tuesday, August 25th, sees a new SSW swell pushing through, with a 16-second period. The height is only 2ft, but the energy jumps to 315 and both morning and afternoon have offshore winds. It’s clean and promising. Wednesday, August 26th, is similar, with a 2.3ft south swell coming in at 18 seconds – that’s a very long period groundswell (540 energy) – but it’s a cross-off wind, so it might be a little wonky for a beach break like this. Thursday, August 27th, looks good again with a 3ft SSW swell, 16-second period, and light offshore winds in the afternoon. The energy is solid at 452. This is a great, clean option for the second week.
The run fades out into the 29th, with small 2ft conditions and onshore winds in the afternoon. Overall, while the heights are small, the consistency and the quality of the wind windows are decent. If you’re an expert or looking for a big day, you’ll be disappointed. But for a lazy, fun longboard session, Big Beach is your spot. Especially Friday morning, August 14th, and the Thursday the 27th.
Short Range ForecastHeavy rain (total 53mm), heaviest during Sat night. Warm (max 28°C on Fri morning, min 25°C on Sat night). Winds decreasing (strong winds from the NE on Sat night, light winds from the E by Sun afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Mon morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
AM | 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 14 | S 14 | S 13 | S 13 | S 14 | S 16 | S 7 | 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  | |||||||||||||||||||||
 kJ | 508 | 411 | 293 | 225 | 222 | 250 | 417 | 168 | 347 | 264 | 257 | 173 | 123 | 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 | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | off | off | cross-off | off | off | off | off |
High Tide | 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 | 12:36PM0.42m | ||||||||||
Low Tide | 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 | 3:14AM0.08m | |||||||||
 |  |  |  |  | | | |  | | |  | | | | | |  | | | | |
 | 6:03 | — | — | 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 | — | — | 1 | 4 | 1 | 36 | 3 | 1 | 7 | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 28 | 28 | 26 | 27 | 28 | 26 | 27 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 25 | 26 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 28 | 27 | 26 | 25 | 26 | 23 | 28 | 31 | 30 | 29 | 29 | 27 | 28 | 28 | 26 | 28 | 29 | 28 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 7 | E 8 | S 15 | S 14 | S 14 | S 13 | S 13 | E 8 | S 13 | S 12 | S 12 | SW 16 | SSW 18 | SSW 17 | SW 16 |
| kJ | 508 | 411 | 293 | 225 | 222 | 250 | 156 | 390 | 347 | 264 | 257 | 173 | 123 | 49 | 82 | 69 | 71 | 129 | 207 | 202 | 278 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | W 11 | W 11 | W 11 | S 18 | S 16 | S 7 | S 6 | SW 18 | W 11 | W 11 | SW 17 | S 13 | SW 18 | SW 16 | SW 16 | S 12 | S 11 | S 11 | S 15 |
| kJ | 10 | 11 | 10 | 9 | 10 | 99 | 417 | 154 | 32 | 50 | 10 | 10 | 74 | 119 | 79 | 67 | 65 | 45 | 21 | 21 | 38 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 17 | SSW 17 | S 20 | SSW 16 | W 13 | S 9 | S 13 | W 11 | W 11 | SSW 19 | SSW 19 | W 11 | SW 18 | W 12 | W 12 | SW 19 | W 11 | S 16 | S 15 | S 11 |
| kJ | 13 | 30 | 30 | 30 | 25 | 30 | 15 | 168 | 23 | 22 | 37 | 37 | 9 | 79 | 26 | 25 | 56 | 10 | 20 | 39 | 21 |
Wind waves Height (m) Direction Period (s) | E 9 | E 7 | E 12 | E 11 | E 10 | E 10 | E 9 | E 8 | E 8 | E 6 | E 8 | E 5 | E 8 | E 4 | E 8 | E 8 | E 5 | E 8 | E 5 | E 8 | E 8 |
| kJ | 481 | 551 | 1784 | 2399 | 2891 | 4708 | 895 | 601 | 337 | 163 | 159 | 68 | 129 | 19 | 167 | 190 | 104 | 142 | 53 | 102 | 132 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 114 | 11 | 11 | 362 | 0 | 34 | 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 | |||||||||||||||||||||
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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.
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