Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach 48 hour detailed Surf Forecast

Issued: 1 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
27.0° C
0.4° 

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 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 2.5ft (0.7m), 17s period with SW swell.
  • Afternoon surf: Afternoon surf (21 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
  • Evening surf: Evening surf (21 Aug, local time) - 2.5ft (0.7m), 16s period with SW swell.

The current surf forecast for Big Beach at 4AM is: 0.7m 17s primary swell from a Southwest direction (forecast issued at 01:00am August 21). An open ocean swell of 0.5m 7s is not directed at the surf break, a second open ocean swell of 0.6m 4s 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 Aug)2.5ft (0.7m)17s
Afternoon (21 Aug)2ft (0.6m)16s
Evening (21 Aug)2.5ft (0.7m)16s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Fri morning, min 26°C on Fri night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
2
2
1
1
2
2
2
2
2
1
0
1
2
1
0
1
1
0
0
1
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)
0.7
SW
16
0.7
SW
17
0.7
SW
17
0.6
SW
16
0.6
SSW
16
0.5
SW
16
0.7
SW
16
0.7
SW
16
0.7
SW
16
0.7
SW
16
0.6
SSW
15
0.6
SSW
15
0.6
SSW
15
0.5
SW
15
0.7
SSW
16
0.6
SSW
15
0.6
SSW
15
0.6
SSW
15
0.6
SSW
15
0.6
SSW
15
0.5
SW
15
0.5
SSW
16
0.4
SSW
15
0.5
SW
14
Wave Graph
Metric surfscale
Energy kJ
278
291
298
219
171
119
261
261
261
261
156
152
150
116
217
156
152
148
146
144
107
137
73
102
Wind (km/h)
10
ENE
10
ENE
10
ENE
5
ENE
10
ESE
15
E
15
E
15
ENE
15
ENE
20
ENE
15
NE
15
E
20
E
20
ENE
20
ENE
25
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
25
NE
20
NE
Wind State
off
off
cross-off
off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
off
off
off
cross-off
off
off
cross-off
cross-off
off
off
off
High Tide
1:29PM0.46m
2:01PM0.50m
11:48PM0.23m
2:28PM0.53m
Low Tide
3:14AM0.08m
5:09AM0.07m
9:42PM0.17m
6:20AM0.05m
9:13PM0.16m
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:50
6:49
 mm
Temp °C
26
26
27
28
28
28
28
27
27
26
27
28
28
28
27
26
26
26
26
28
28
27
26
26
Feels °C
29
29
30
32
32
31
30
29
28
26
28
30
29
29
28
26
27
27
26
28
29
28
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.


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