Surf Forecasts:
Big Beach surf forecast from 8 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 5PM (local time) - 3.5ft (1.0m), 18s period, S swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.3m), 16s period, S swell with 879 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 5PM (local time) - 1.5ft (0.4m), 18s period with SSW 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 Saturday (Aug 08) at 5PM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.4m and 13s. 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 1.3m 16s and forecast to arrive on Thursday (Aug 13) 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 9.0m 12s period and expected on Saturday (Aug 15) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sat 8th Aug) | 1.5ft (0.4m) 18s |
| Best Surf | 5PM (Wed 12th Aug) | 3.5ft (1.0m) 18s |
| Most Powerful | 2AM (Thu 13th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Big Beach over the next 16 days.
The Lowdown
Alright, Rusty here again, giving you the same rundown but in feet and miles.
Water temp is about 80°F, right on average for this time of year – feels normal.
We start slow. Saturday the 8th has tiny 1ft swell from the SSW with an 18-second period – long, lazy lines, but weak. Combined energy is only 280 (weak). Wind is cross-offshore, turning offshore later. Surfable, but not worth it.
Sunday the 9th: 2ft, still small. Lighter wind in the morning, clean. Better, but still small.
Monday the 10th: 2ft in the morning, light cross-off. Afternoon gets 3ft with a moderate breeze. Energy still weak at 346.
Tuesday the 11th: steady around 3ft. Afternoon gets offshore wind at 12 mph. Cleaner, energy at 362.
Wednesday the 12th: morning jumps to 3ft from the S, 18-second period. Combined energy hits 879 (moderate). The afternoon is the standout: offshore wind at 9 mph, clean, very good surf. The long period might make it a little straight on the beach, but offshore wind will help.
Thursday the 13th morning is the best of the bunch: 4ft, 16-second period, energy at 719 (moderate), and light offshore wind at 6 mph. Clean, glassy, fun-sized. Afternoon gets a bit cross-off, so get out early.
Friday the 14th: 3ft in the morning with offshore wind. Afternoon drops to 3ft and gets a little messy.
Saturday the 15th: forget it. Wind is howling at 25-28 mph from the ENE and NE. Swell is 2ft in the morning, 5ft in the afternoon, but you’ll be fighting the wind. Better for kiting.
Sunday the 16th: morning has 6ft from the S but only 8-second period and cross-onshore wind at 22 mph – lumpy. Afternoon settles a bit with 4ft and cross-off wind, but short period.
From Monday the 17th, it drops back. 3ft with offshore wind, clean but small. Energy weak.
Tuesday the 18th to Thursday the 21st is a long stretch of tiny surf: 1ft to 2ft. Periods are decent (13-19 seconds), but no power. The 20th and 21st mornings are glassy – pretty, but you’ll be on tiny waves.
Friday the 22nd and Saturday the 23rd are still small and weak, with energy under 200.
So, your best bet is Thursday morning, the 13th of August – clean, chest-high, light wind. Wednesday the 12th afternoon is a close second. After that, it’s a long stretch of small stuff. Get it while you can.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Thu afternoon, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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) | SSW 18 | SSW 18 | SW 17 | SW 16 | S 17 | S 16 | SSW 15 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | S 19 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 133 | 124 | 147 | 132 | 147 | 131 | 179 | 320 | 188 | 280 | 269 | 273 | 627 | 606 | 879 | 597 | 653 | 537 | 423 | 333 | 304 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | off | off | cross-off | off | off | off | cross-off | off | off | cross-off | off |
High Tide | 1:58PM0.58m | 11:24PM0.25m | 2:37PM0.62m | 1:11AM0.27m | 3:13PM0.66m | 2:12AM0.31m | 3:46PM0.67m | 3:03AM0.35m | 4:17PM0.66m | 3:49AM0.38m | 4:46PM0.63m | 4:34AM0.41m | 5:11PM0.59m | ||||||||
Low Tide | 9:53PM0.18m | 6:28AM-0.02m | 9:35PM0.16m | 7:25AM-0.05m | 9:50PM0.14m | 8:14AM-0.06m | 10:11PM0.12m | 8:59AM-0.05m | 10:35PM0.10m | 9:40AM-0.03m | 11:00PM0.09m | 10:19AM0.01m | 11:25PM0.07m | ||||||||
 | |  |  |  |  | | | | | | | | | | | | | | | | |
 | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — |
mm | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 26 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 28 | 26 | 28 | 29 | 26 | 29 | 29 | 27 |
Feels °C | 28 | 29 | 26 | 31 | 29 | 27 | 31 | 27 | 27 | 29 | 27 | 26 | 28 | 28 | 26 | 29 | 29 | 26 | 29 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 18 | SSW 13 | SSW 13 | S 17 | S 16 | SSW 15 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | SSW 14 |
| kJ | 120 | 124 | 99 | 99 | 147 | 131 | 179 | 320 | 188 | 280 | 269 | 243 | 627 | 606 | 879 | 597 | 653 | 537 | 423 | 333 | 304 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 13 | SW 17 | SW 16 | SSW 12 | SSW 12 | SSW 12 | W 10 | SSW 11 | S 21 | SSW 21 | S 19 | SSW 13 | SSW 13 | W 12 | SSW 12 | ESE 12 | W 12 | W 12 | SSW 17 | S 21 |
| kJ | 133 | 43 | 147 | 132 | 85 | 83 | 85 | 19 | 23 | 36 | 85 | 273 | 222 | 218 | 11 | 111 | 15 | 11 | 11 | 30 | 9 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SSW 14 | SSW 19 | SSW 18 | SW 16 | SW 16 | W 11 | S 9 | W 10 | W 10 | W 10 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | SW 18 | SW 18 | W 12 | SSW 17 |
| kJ | 27 | 68 | 69 | 102 | 66 | 64 | 20 | 7 | 8 | 8 | 8 | 30 | 30 | 28 | 11 | 11 | 11 | 13 | 12 | 11 | 30 |
Wind waves Height (m) Direction Period (s) | E 7 | E 6 | E 6 | E 8 | E 8 | E 6 | E 8 | E 8 | E 6 | E 8 | E 5 | E 5 | E 8 | E 6 | E 6 | E 6 | E 6 | E 6 | E 13 | E 14 | E 14 |
| kJ | 107 | 178 | 245 | 246 | 329 | 191 | 282 | 234 | 133 | 186 | 136 | 104 | 144 | 100 | 149 | 144 | 221 | 355 | 2031 | 4432 | 6687 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | 0 | 114 |
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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