Inside Poipu Surf Break

Lat Long: 21.87° N 159.44° W

Inside Poipu 48 hour detailed Surf Forecast

Issued: 1 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Inside Poipu sea temperature is
26.5° C
0.3° 

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


How big are the waves at Inside Poipu today (18 Aug):

  • Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.3m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (18 Aug, local time) - 4ft (1.2m), 7s period with ENE swell.
  • Evening surf: Evening surf (18 Aug, local time) - 4ft (1.2m), 7s period with E swell.

The current surf forecast for Inside Poipu at 5AM is: 1.4m 7s primary swell from a East direction and 0.7m 13s secondary swell from a South direction, 0.4m 11s secondary swell from a Southeast direction (forecast issued at 01:00am August 18). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (18 Aug)4.5ft (1.3m)7s
Afternoon (18 Aug)4ft (1.2m)7s
Evening (18 Aug)4ft (1.2m)7s

Table - waves today at Inside Poipu. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Tue morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
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
S
14
1.4
E
7
1.3
E
7
1.3
ENE
7
1.2
ENE
7
1.2
ENE
7
1.2
E
7
1.2
E
7
1.2
E
6
1.1
E
7
1
E
7
1
E
7
1
E
7
1
E
7
1
E
8
0.9
ENE
8
0.5
SW
16
0.5
SW
17
0.6
SSW
18
0.6
SSW
18
0.6
SSW
18
0.6
SSW
17
0.6
SSW
16
0.6
SSW
16
Wave Graph
Metric surfscale
Energy kJ
208
187
171
165
139
143
134
126
108
113
100
103
97
97
134
109
132
148
207
209
207
195
179
177
Wind (km/h)
25
ENE
25
ENE
25
ENE
20
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
E
20
ENE
20
NE
20
NE
20
ENE
20
ENE
20
NE
20
ENE
20
E
15
E
15
ENE
10
NNE
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross-off
High Tide
8:21AM0.53m
5:45PM0.38m
9:43AM0.54m
11:10AM0.56m
Low Tide
00:45AM0.12m
2:44PM0.36m
1:15AM0.13m
1:58AM0.15m
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
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:05
7:04
 mm
Temp °C
24
24
24
26
26
26
24
24
24
24
24
26
27
26
24
24
24
24
24
27
28
27
26
25
Feels °C
24
24
24
26
25
26
24
24
24
25
24
26
27
26
24
25
26
25
25
27
29
29
29
28
  • 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 Inside Poipu 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