Surf Forecasts:
Big Beach surf forecast from 14 Sep 2026:
- Best quality surf: Monday 14 Sep, 5PM (local time) - 1.5ft (0.5m), 22s period, SW swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 2AM (local time) - 3ft (0.9m), 18s period, SSW swell with 541 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 8AM (local time) - 1.5ft (0.4m), 14s period with SW 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 Monday (Sep 14) at 8AM. The primary swell is predicted to be 0.2m and 24s period with a secondary swell of 0.4m and 14s. 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 18s and forecast to arrive on Friday (Sep 18) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Thursday (Sep 17) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Mon 14th Sep) | 1.5ft (0.4m) 14s |
| Best Surf | 5PM (Mon 14th Sep) | 1.5ft (0.5m) 22s |
| Most Powerful | 2AM (Fri 18th Sep) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what's on the menu for Big Beach over the next couple of weeks.
Right off the bat, we're looking at a slow start. The surf coming in on the 14th is barely a ripple at 0.7ft with a very long period swell. The water temp is sittin' at 81°, which is about average for this time of year, so no surprises there. We'll see that combined energy building through the week, climbing from 104 to over 600 by the 18th, so there's some juice coming. The standout here is really going to be the Wednesday the 16th. We've got a clean 3ft to 3ft groundswell from the SSW, period around 18 seconds, and the wind is offshore and light through the afternoon. That's the kind of glassy, groomed setup that makes for fun, clean walls. The combined energy hits 440-486, so it's got some push. This is a very consistent break for beginners, but that period is long enough that it might break a bit too straight for the beach break unless you pick your spot.
As we move into the weekend of the 19th and 20th, it stays pretty consistent with 2ft to 3ft SSW swell, but the wind is mostly cross-off, which is still clean. The energy stays solid in the 400s. The real gem appears to be the afternoon of Sunday the 20th, with offshore winds and a clean 3ft swell. Then we hit a bit of a lull around the 22nd and 23rd, dropping to 2ft, but the wind stays offshore and the energy is moderate. By the 24th, it picks back up to 2ft with solid offshore winds.
Now, for the second week, look out for the 25th. Friday morning shows a clean 3ft SSW swell with very light winds and combined energy back up to 400. But the absolute best-looking wave in this whole 16-day run is the afternoon of Saturday the 26th. The swell is only 2ft, but it's glassy as a mirror and the period is a very long 18 seconds. That combined energy of 269 is moderate, but the conditions will make every one of those long-period waves a gem. It's a rare glass-off, and for a break like Big Beach, that's a true standout for a quiet, fun session. The Monday the 28th also looks promising with a clean 3-3ft in the morning and glassy conditions in the afternoon, with combined energy surging to 549, but the wind is iffy in the morning.
Overall, don't expect anything over 3ft, so it's beginner-friendly but still has enough shape for a good time.
Rusty
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 28°C on Thu morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 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) | SW 14 | SW 22 | SSW 21 | SW 20 | SW 20 | SW 19 | SSW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SSW 18 | SSW 16 | SSW 17 | SSW 16 | SSW 15 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 54 | 227 | 180 | 392 | 388 | 376 | 399 | 449 | 381 | 371 | 255 | 541 | 412 | 522 | 390 | 196 | 258 | 346 | 318 | 360 | 317 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | off | off |
High Tide | 4:48PM0.42m | 6:25AM0.48m | 4:53PM0.38m | 7:18AM0.45m | 4:37PM0.35m | 8:46AM0.42m | 11:31AM0.42m | 12:44PM0.45m | 1:19PM0.49m | 00:25AM0.24m | |||||||||||
Low Tide | 11:22AM0.16m | 11:07PM0.02m | 12:03PM0.20m | 11:28PM0.03m | 12:57PM0.23m | 11:52PM0.05m | 00:22AM0.08m | 1:27AM0.10m | 4:31AM0.11m | 8:38PM0.15m | |||||||||||
 |  |  | | | | | | | |  |  | | |  | | | | |  | | |
 | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:24 | — | — | 6:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 3 | — | 1 | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 28 | 27 |
Feels °C | 29 | 30 | 30 | 31 | 30 | 28 | 30 | 31 | 28 | 30 | 30 | 29 | 29 | 28 | 29 | 30 | 30 | 26 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | E 4 | SW 22 | E 6 | SW 20 | SW 20 | SW 19 | SSW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SSW 18 | SSW 16 | SSW 17 | SSW 16 | SSW 15 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 7 | 227 | 18 | 392 | 388 | 376 | 399 | 449 | 381 | 371 | 255 | 541 | 412 | 522 | 390 | 196 | 258 | 346 | 318 | 360 | 317 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SSW 21 | E 12 | E 11 | SW 12 | SW 12 | SW 11 | E 10 | SSW 20 | SSW 18 | SSW 18 | SW 18 | SSW 16 | SW 16 | SW 16 | S 17 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 50 | 49 | 180 | 45 | 39 | 38 | 35 | 31 | 123 | 81 | 188 | 61 | 80 | 50 | 125 | 129 | 154 | 112 | 54 | 56 | 33 |
Swell 3 Height (m) Direction Period (s) | SSW 23 | SSW 11 | SSW 13 | SW 13 | SW 12 | WSW 8 | WSW 8 | WSW 8 | SW 11 | SSW 20 | SW 20 | WSW 8 | W 9 | S 20 | S 7 | SSW 18 | SSW 14 | SSW 14 | W 14 | W 13 | W 12 |
| kJ | 54 | 24 | 68 | 42 | 39 | 7 | 6 | 6 | 19 | 37 | 60 | 7 | 6 | 32 | 4 | 107 | 69 | 61 | 4 | 3 | 12 |
Wind waves Height (m) Direction Period (s) | E 3 | E 5 | ENE 6 | E 4 | E 5 | E 5 | E 10 | E 6 | E 5 | E 10 | E 6 | E 7 | E 7 | E 7 | E 6 | E 8 | E 6 | E 6 | E 8 | E 8 | E 8 |
| kJ | 6 | 13 | 26 | 36 | 21 | 104 | 204 | 158 | 37 | 602 | 241 | 403 | 403 | 353 | 355 | 392 | 302 | 222 | 331 | 329 | 266 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 34 | 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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