Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach Surf Forecast and Surf Report

Issued: 7 am 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
27.2°C
0.3° 

Big Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Big Beach surf forecast from 11 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★+): Friday 11 Sep, 2PM (local time) - 2ft (0.6m), 15s 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 (Sep 11) at 2PM. The primary swell is predicted to be 0.6m and 15s period. The wind is predicted to be cross-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 6s period and expected on Thursday (Sep 17) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Fri 11th Sep)2ft (0.6m) 15s
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

Righto, grab a coffee and let’s have a proper look at the surf ahead for Big Beach over the next couple of weeks.

First up, the water is sitting at 81° – that’s pretty much bang on average for this time of year, so no nasty surprises when you paddle out.

Now, the bad news: the next few days are a bit of a flat spell. From Friday the 11th right through to Sunday the 13th, we’re looking at tiny little 1ft to 2ft swells with the odd 16-second period. The combined wave energy is weak to moderate (276 down to 117), and while the winds are light and often cross-off, there’s just not enough push to make it worthwhile for anyone except maybe a longboarder with a lot of patience. This stretch is more about a gentle paddle than actual surfing.

Things start to show a flicker of life on Monday the 14th. The morning is flat – barely 0.7ft – but by Monday afternoon we get a jump to 2ft from the SW with a very long 22-second period. That long period makes it a proper groundswell, and combined energy jumps to 310 (moderate). The offshore wind from the NE will keep it clean and tidy. It’s still small, but the shape should be there for a quiet session.

The real standout, the one I’d circle on the calendar, is Tuesday the 15th. Both morning and afternoon serve up 2ft SW swell with a solid 20-second period. The combined energy is strong at 392 to 427, and we’ve got light east then offshore NE winds. That’s clean, long-period groundswell – ideal for the point and reef setups here. The wave quality should be way above what the size suggests. Expect long, lined-up waves with easy paddling between sets. Crowds are sometimes an issue at Big Beach, so get out early.

Wednesday the 16th keeps the good run going: 3ft to 3ft SW/SSW swell, 18-second period, moderate offshore winds from the ENE. Combined energy stays strong at 440 to 476. The afternoon in particular looks tidy with moderate offshore conditions keeping things glassy.

Thursday the 17th holds similar size (2ft) and the same offshore wind. Combined energy actually peaks at 503 in the afternoon, despite the risk of thunderstorms. The swell is still long-period (16s) and clean, so if you don’t mind a bit of tropical drizzle, the surf will be worth it.

Friday the 18th sees another small uptick in size – 3ft from the SSW with 16-17 second periods and combined energy climbing to 609. The winds are cross-off from the east, so it’s still clean. This could be the biggest, most energetic swell of the run, but you’ll need to watch the tide and the morning will be better.

From Saturday the 19th onward, we start to fade. Swell drops back to 2ft to 3ft, periods shorten into the 12-14 second range, and the winds start to get a bit more side-on and stronger, especially on Sunday the 20th with 15 mph easterlies making conditions poor. Monday the 21st and Tuesday the 22nd are pretty ordinary – small, short-period, and mostly not worth the paddle.

There’s a brief tease on Wednesday the 23rd morning – 2ft from the SW with a 17-second period and glassy light air – but it’s small and inconsistent. After that, the last few days of the window (24th to 26th) show marginal conditions with cross-shore winds and low-energy, short-period slop. Nothing to get excited about.

So, to wrap it up: the best windows are Tuesday the 15th and Thursday the 17th. That’s where you’ll find the cleanest, most lined-up waves, even if they aren’t huge. If you’re a beginner, the 2ft stuff is ideal – well under the 5ft mark – so don’t be shy. Just don’t expect a classic chest-high day; this is a long-period groundswell that will make the most of what it’s got.
Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri morning, min 24°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Tue morning, min 25°C on Mon morning). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
2
1
2
2
2
1
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
16
0.6
SW
15
0.7
SW
15
0.6
SW
15
0.5
SW
14
0.4
SW
16
0.4
SW
15
0.4
SW
15
0.4
SSW
14
0.4
SW
14
0.5
SW
22
0.4
SSW
21
0.7
SW
20
0.7
SW
20
0.7
SW
19
0.8
SSW
18
0.9
SW
18
0.8
SSW
17
0.7
SW
16
0.7
SW
16
0.9
SSW
18
Wave Graph
Metric surfscale
Energy kJ
206
183
226
191
91
64
60
54
80
54
227
180
392
388
376
399
449
381
261
255
541
Wind (km/h)
10
E
15
E
10
ENE
10
E
15
E
10
NE
10
E
15
ENE
15
NE
10
NE
15
NNE
10
NNE
5
E
10
NE
15
NE
20
ENE
20
ENE
20
NE
20
ENE
20
ENE
15
ENE
Wind State
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
off
off
off
off
off
cross-off
off
off
cross-off
off
off
off
off
off
High Tide
3:58PM0.56m
4:23AM0.50m
4:18PM0.52m
5:02AM0.51m
4:35PM0.47m
5:42AM0.50m
4:48PM0.42m
6:25AM0.48m
4:53PM0.38m
7:18AM0.45m
4:37PM0.35m
8:46AM0.42m
Low Tide
9:29AM0.04m
10:04PM0.04m
10:07AM0.07m
10:25PM0.03m
10:44AM0.11m
10:45PM0.02m
11:22AM0.16m
11:07PM0.02m
12:03PM0.20m
11:28PM0.03m
12:57PM0.23m
11:52PM0.05m
00:22AM0.08m
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
6:29
6:28
6:27
6:25
 mm
2
2
Temp °C
27
27
25
26
26
25
26
26
25
27
27
26
28
28
27
28
28
27
28
28
27
Feels °C
29
28
25
28
27
25
28
27
26
28
28
27
31
31
28
29
29
28
30
30
29
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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