Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach 48 hour detailed Surf Forecast

Issued: 7 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
27.5°C
0.6° 

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


How big are the waves at Big Beach today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.8m), 14s period with SSW swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.8m), 13s period with SSW swell.
  • Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.8m), 13s period with SSW swell.

The current surf forecast for Big Beach at 12PM is: 0.8m 14s primary swell from a South-southwest direction and 0.3m 14s secondary swell from a Southwest direction (forecast issued at 07:00am September 21). An open ocean swell of 1.6m 9s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (21 Sep)2.5ft (0.8m)14s
Afternoon (21 Sep)2.5ft (0.8m)13s
Evening (21 Sep)2.5ft (0.8m)13s

Table - waves today at Big Beach. (Swell directed towards the surf break)


Short Range Forecast

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

Monday
21
Tuesday
22
Wednesday
23
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
2
2
2
2
2
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
0.7
SSW
13
0.7
SSW
13
0.7
SSW
13
0.7
S
12
0.7
S
12
0.7
S
12
0.4
SW
18
0.6
S
12
0.6
S
13
0.6
S
13
0.6
S
13
0.5
SW
17
0.5
SW
17
0.5
SW
16
0.5
SW
16
0.5
SW
16
Wave Graph
Metric surfscale
Energy kJ
336
261
247
239
236
232
229
176
173
165
153
148
146
108
112
121
123
125
145
138
127
122
122
Wind (km/h)
20
NE
20
NNE
15
NE
15
NE
15
NE
15
NE
15
NE
15
NE
15
ENE
10
ENE
10
E
20
E
25
E
20
ENE
20
ENE
15
NE
15
NE
15
NE
15
ENE
20
E
20
ENE
20
ENE
20
NE
Wind State
off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
off
off
High Tide
1:45PM0.52m
1:07AM0.29m
2:07PM0.54m
1:42AM0.34m
2:28PM0.55m
Low Tide
5:56AM0.09m
8:23PM0.14m
6:44AM0.06m
8:27PM0.12m
7:23AM0.05m
8:38PM0.10m
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:22
6:21
 mm
Temp °C
25
26
28
28
27
27
26
26
26
26
28
28
28
27
26
26
26
26
28
28
27
26
26
Feels °C
25
26
30
30
28
29
28
28
28
28
31
29
28
28
27
27
27
27
29
29
27
26
27
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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.


Nearest locationNearest