Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach Surf Forecast and Surf Report

Issued: 1 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
26.9°C
0.2° 

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 31 Aug 2026:

  • Best quality surf: Monday 31 Aug, 2AM (local time) - 1.5ft (0.5m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 8AM (local time) - 3.5ft (1.0m), 16s period, S swell with 535 kJ wave energy.
  • Next surfable swell (1★+): Sunday 30 Aug, 11PM (local time) - 2ft (0.6m), 11s 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 Sunday (Aug 30) at 11PM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.4m and 15s. 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 1.0m 16s and forecast to arrive on Wednesday (Sep 02) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Thursday (Sep 03) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 30th Aug)2ft (0.6m) 11s
Best Surf 2AM (Mon 31st Aug)1.5ft (0.5m) 15s
Most Powerful 8AM (Wed 2nd Sep)3.5ft (1.0m) 16s

Table - best surf conditions forecast for Big Beach over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s talk about what’s shaping up at Big Beach.

We’ve got a bit of a slow start, but there’s a nice little run of surf coming through. The first solid session isn’t until Monday the 31st of August, with a clean 2ft SSW groundswell and a very long 19-second period. The wind is offshore from the ENE at 15 mph, which means the waves will be holding up nicely. The water is sitting at 80°, which is pretty much average for this time of year – nothing weird going on there. The combined energy is moderate (299), so there’s a bit of push, but it’s not going to be a beast.

The real standout is Tuesday morning, September 1st. That’s your pick of the week. Light offshore winds from the NE at 6 mph, a clean 3ft SSW swell with an 18-second period, and the combined energy is chunky at 592. That’s solid moderate energy, and with glassy conditions, it’s going to be a beautiful morning. Big Beach is fairly exposed to the swell, so this south-southwest pulse will wrap in nicely. Keep in mind, it’s a beginner-friendly spot, but with the size just under 3ft, it’s totally manageable. Crowds are sometimes a thing here, so get in early.

As we move into the first week of September, the swell hangs around 2ft to 3ft but the wind gets a bit stronger. Thursday the 3rd has a fresh offshore breeze from the NE at 22 mph, and while the waves are only 3ft, it’ll be clean and fast. The combined energy drops to 293, so it’s on the weaker side, but still worth a paddle.

The second week is a bit more mixed. Saturday the 5th has a beautiful 1ft SSW groundswell with an 18-second period, and light cross-off winds, but the afternoon gets hit with rain showers. Sunday the 6th afternoon brings a clean 2ft SSW swell at 19 seconds and gentle offshore NE winds – that’s a nice mellow session.

The real highlight of the whole forecast? Monday the 7th of September. Morning has 3ft SSW at 17 seconds, but the afternoon is where it’s at: 3ft SSW, 17-second period, 15 mph NE offshore winds, and a combined energy of 670 – that’s strong moderate energy, and it’s got "very good surf conditions" written all over it. Clean, punchy, and offshore. That’s the session to circle on the calendar.

After that, things get choppy. Tuesday the 8th is cross-shore, Wednesday the 9th is cross-on and onshore, and from Thursday the 10th through to the 13th, the swell drops to 1ft–2ft. The wind is mostly cross-off or light, but the energy is weak – staying under 200 in the combined energy values. There’s a small window on Monday the 14th of September with a 1ft SW groundswell at 20 seconds (very long period), but the combined energy is only 267. It’s surfable, but not a standout.

So, to wrap it up: the best of the best is Monday afternoon, September 7th at Big Beach. Second best is Tuesday morning, September 1st. Get on it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Winds decreasing (fresh winds from the NE on Thu afternoon, light winds from the E by Sat morning).

Sun
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
2
1
2
2
1
2
1
1
2
1
0
1
1
2
2
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.4
SSW
19
0.6
S
19
0.9
SSW
18
0.7
S
18
0.9
S
17
1
S
16
1
S
16
0.8
S
15
0.8
S
14
0.7
S
14
0.7
S
14
0.9
S
10
1
S
9
1
SSW
9
0.4
SSW
18
0.4
SSW
18
0.4
SSW
17
Wave Graph
Metric surfscale
Energy kJ
112
112
109
122
270
528
311
443
529
482
275
268
195
181
164
173
177
121
121
111
Wind (km/h)
25
E
20
NE
25
ENE
20
ENE
20
NE
10
NE
25
ENE
15
NE
20
ENE
25
ENE
25
ENE
35
ENE
35
NE
30
NE
25
ENE
20
ENE
20
NE
15
E
20
ENE
15
NE
Wind State
cross-off
off
off
off
off
off
cross-off
off
cross-off
cross-off
off
off
off
off
cross-off
off
off
cross-off
cross-off
off
High Tide
4:55PM0.52m
5:38AM0.47m
5:10PM0.47m
6:30AM0.46m
5:21PM0.42m
7:37AM0.45m
5:16PM0.38m
9:24AM0.45m
11:43AM0.48m
12:54PM0.54m
Low Tide
11:10PM0.04m
11:08AM0.12m
11:37PM0.02m
11:49AM0.18m
00:08AM0.02m
12:45PM0.23m
00:47AM0.03m
1:46AM0.04m
3:29AM0.05m
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:42
6:40
6:39
6:38
6:37
6:37
 mm
2
Temp °C
28
26
27
28
26
27
28
26
28
28
26
27
27
25
26
27
26
28
28
27
Feels °C
28
26
26
28
26
29
29
26
28
29
25
24
24
23
25
27
26
31
30
28
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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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