Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach Surf Forecast and Surf Report

Issued: 1 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
26.9° C
0.4° 

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 10 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 11AM (local time) - 3.5ft (1.0m), 18s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.4m), 16s period, S swell with 1,017 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 8PM (local time) - 1.5ft (0.5m), 16s 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 09) at 8PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.5m and 12s. 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 1.4m 16s and forecast to arrive on Thursday (Aug 13) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 13s period and expected on Saturday (Aug 15) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 9th Aug)1.5ft (0.5m) 16s
Best Surf11AM (Wed 12th Aug)3.5ft (1.0m) 18s
Most Powerful 2AM (Thu 13th Aug)4.5ft (1.4m) 16s

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


The Lowdown

Alright crew, Rusty here. Let's break down what Big Beach has in store over the next couple of weeks.

Don't expect much to start with. We've got some small long-period groundswell coming in from the south on Sunday the 9th, with periods up to 17 seconds. That usually means nice, well-shaped waves but with longer lulls between sets. Swell height is tiny at 2 ft, and combined wave energy is weak (298). Water temp is about 80°, which is standard for this time of year.

Through Monday the 10th and Tuesday the 11th, the swell builds slowly to 3 ft. Winds are cross-offshore most of the time, keeping things clean, but energy stays moderate. The real standout moment comes on Wednesday the 12th. That morning we see 3 ft of south swell with a very long period of 18 seconds, kicking the wave energy up into strong territory (879). You've got light cross-offshore winds making the conditions clean—this is the pick of the period for sure.

Thursday the 13th keeps the quality going with 4 ft to 4 ft of south swell, periods around 15–16 seconds, and energy remains strong. Thursday afternoon even swings into a gentle offshore breeze, giving you clean, lined-up waves. By Friday the 14th and Saturday the 15th, the swell drops a little to 3 ft–4 ft but winds stay offshore, so you'll still find some fun ones.

From Sunday the 16th onward, it gets messy. Winds turn cross and cross-on, killing the quality. Monday the 17th is basically a skip day with onshore winds. There's a brief pocket of glassy conditions on Tuesday the 18th morning with 2 ft of south swell, but it's ordinary.

Then there's a bit of hope around Thursday the 20th. Thursday morning goes glassy again with 2 ft of south-southwest swell and a nice long 19-second period—conditions will be clean with moderate energy (276). It stays tidy through Friday the 21st with 2 ft of southwest swell and light cross-offshore winds.

The final few days get inconsistent with moderate breezes and smaller swell. Late on the 23rd there's a flicker of life with some moderate offshore wind and 2 ft of south swell, but nothing to write home about.

So bottom line: Wednesday the 12th is your best shot—clean, solid 3 ft energy with excellent wave shape. Thursday the 20th is a backup date if you can hold out for some glassy conditions.

Rusty, out.

Short Range Forecast

Some drizzle, heaviest during Sun afternoon. Warm (max 28°C on Mon morning, min 25°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

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

Sun
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
1
2
2
1
2
3
3
3
2
3
2
2
2
1
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
S
17
0.5
S
16
0.6
SSW
15
0.7
SSW
16
0.7
SSW
15
0.8
SSW
14
0.8
SSW
14
0.6
S
19
1
S
18
1
S
18
1.4
S
16
1.1
S
16
1.2
S
15
1.2
S
15
1.1
S
14
1
S
14
0.9
S
14
0.9
S
13
0.9
S
13
0.8
S
14
Wave Graph
Metric surfscale
Energy kJ
147
131
179
250
246
280
269
273
627
606
1017
597
644
627
508
405
293
280
280
243
Wind (km/h)
20
ENE
15
NE
10
E
20
ENE
15
ENE
15
E
20
ENE
15
ENE
15
ENE
20
NE
15
NNE
15
ENE
15
ENE
15
NE
15
ENE
20
NE
15
N
15
NNE
20
NNE
15
N
Wind State
off
off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
off
cross-off
cross-off
off
off
off
off
cross-off
off
cross-off
cross-off
High Tide
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
5:20AM0.42m
5:33PM0.53m
Low Tide
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
10:57AM0.06m
11:49PM0.06m
thunderstorm
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:58
6:58
6:57
6:55
6:55
6:54
 mm
1
Temp °C
27
27
28
28
27
28
28
25
27
27
26
28
28
26
28
28
26
27
28
26
Feels °C
28
29
30
28
28
29
28
24
28
27
26
28
29
27
28
28
26
29
30
27
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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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