Surf Forecasts:
Big Beach surf forecast from 21 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 8PM (local time) - 2.5ft (0.7m), 19s period, S swell with offshore winds.
- Most powerful swell: Thursday 27 Aug, 11PM (local time) - 3.5ft (1.1m), 16s period, S swell with 582 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 17s 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 Friday (Aug 21) at 5AM. The primary swell is predicted to be 0.7m and 17s period. 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 16s and forecast to arrive on Thursday (Aug 27) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 6s period and expected on Saturday (Aug 22) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 17s |
| Best Surf | 8PM (Wed 26th Aug) | 2.5ft (0.7m) 19s |
| Most Powerful | 11PM (Thu 27th Aug) | 3.5ft (1.1m) 16s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at the next stretch for Big Beach.
The first few days are pretty quiet. We’ve got some small, clean surf on Friday the 21st, but it’s tiny – not really worth getting wet for. That run of small, ordinary surf hangs around through the weekend and into early next week. From Friday the 21st through Tuesday the 27th, the waves stay in that knee-to-thigh-high zone. There’s plenty of clean mornings with light offshore breezes, but we’re just not getting the energy.
Now, the standout in this whole window is Thursday morning, the 27th of August. That’s the call. The swell jumps up to a more respectable `3ft` from the SSW with a long period of 16 seconds. The energy reading (836) is the strongest we see in the whole outlook, and the wind is light and cross-offshore, so it should be clean and lined up. This is the one to circle on the calendar. The morning of Wednesday the 26th is also worth a paddle, with a solid `2ft` and clean offshore conditions, but Thursday is the pick.
After that, things settle back down into the ordinary again. We have a few more days of small, clean waves through the weekend and into the start of September. The morning of Tuesday the 1st of September gets interesting, with a `3ft` SSW groundswell and a long 18 second period. It’s got some push, but that morning wind is strong, and by the afternoon it’s blowing a near gale, so it won’t be much fun to paddle into. That one is more for the experienced heads to look at.
Water temps are about average for the time of year, so no surprises there.
So, to sum it up: don't rush out for the small stuff. Save your energy for Thursday the 27th. That’s your best chance at a proper session. The rest is just keeping the board dusty.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 26°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 28°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 16 | SW 16 | SW 16 | SSW 15 | SW 15 | SSW 15 | SSW 15 | SSW 16 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | S 18 | SSW 14 | SSW 17 | S 18 | S 18 | S 16 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 219 | 119 | 261 | 152 | 116 | 152 | 144 | 137 | 100 | 163 | 156 | 127 | 146 | 140 | 165 | 215 | 307 | 322 | 441 | 325 | 582 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | off | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | off | off | cross-off | off |
High Tide | 1:29PM0.46m | 2:01PM0.50m | 11:48PM0.23m | 2:28PM0.53m | 1:03AM0.27m | 2:51PM0.56m | 1:46AM0.30m | 3:14PM0.58m | 2:23AM0.34m | 3:36PM0.59m | 2:59AM0.38m | 3:58PM0.59m | 3:35AM0.41m | ||||||||
Low Tide | 5:09AM0.07m | 9:42PM0.17m | 6:20AM0.05m | 9:13PM0.16m | 7:07AM0.02m | 9:16PM0.15m | 7:45AM0.01m | 9:28PM0.13m | 8:19AM-0.01m | 9:45PM0.11m | 8:51AM-0.01m | 10:04PM0.09m | |||||||||
 |  |  | | |  | | | | |  |  | | | | | | | | | | |
 | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 27 | 27 | 28 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 32 | 32 | 30 | 30 | 29 | 28 | 28 | 29 | 26 | 29 | 29 | 29 | 29 | 27 | 26 | 27 | 27 | 26 | 28 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | E 6 | SW 16 | SSW 15 | SW 15 | SSW 15 | SSW 15 | SSW 16 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 15 | SSW 14 | SSW 17 | S 18 | SSW 16 | S 16 | S 16 |
| kJ | 219 | 50 | 261 | 152 | 116 | 152 | 144 | 137 | 100 | 163 | 156 | 127 | 117 | 82 | 121 | 215 | 307 | 322 | 441 | 325 | 582 |
Swell 2 Height (m) Direction Period (s) | W 11 | SW 16 | S 13 | S 12 | WNW 10 | WNW 10 | SSE 13 | SW 14 | SSW 15 | SSE 12 | SSE 12 | SSW 17 | SSW 16 | SSW 16 | S 18 | S 18 | S 20 | SSW 13 | S 18 | E 16 | E 15 |
| kJ | 36 | 119 | 84 | 48 | 35 | 34 | 58 | 54 | 71 | 49 | 47 | 92 | 146 | 140 | 165 | 160 | 186 | 135 | 395 | 243 | 343 |
Swell 3 Height (m) Direction Period (s) | S 11 | W 11 | WNW 10 | WNW 10 | S 12 | S 12 | SSW 16 | S 11 | SSE 13 | SSW 18 | SSW 18 | SSE 12 | SSE 12 | SSW 19 | SSW 12 | S 21 | SSW 13 | SSW 16 | E 17 | SSW 12 | SW 21 |
| kJ | 37 | 55 | 33 | 33 | 46 | 44 | 51 | 23 | 56 | 32 | 61 | 27 | 27 | 74 | 79 | 79 | 58 | 85 | 202 | 47 | 18 |
Wind waves Height (m) Direction Period (s) | E 5 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 9 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 5 | E 6 | E 5 | E 6 | E 5 | E 5 | E 5 |
| kJ | 57 | 80 | 97 | 175 | 273 | 343 | 343 | 429 | 222 | 214 | 178 | 211 | 236 | 138 | 100 | 133 | 104 | 117 | 73 | 62 | 71 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest