Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.1° C
0.4° 

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


Sandy Beach surf forecast from 16 Aug 2026:

  • Most powerful swell: Saturday 15 Aug, 11PM (local time) - 16ft (5.0m), 10s period, E swell with 4,800 kJ wave energy.

Best Forecast Surf Conditions for Sandy Beach this week:

The most powerful waves expected at Sandy Beach in the next 16 days are 5.0m 10s and forecast to arrive on Saturday (Aug 15) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 16s period and expected on Friday (Aug 21) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Sat 15th Aug)16ft (5.0m) 10s

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


The Lowdown

G’day, Rusty here. Let’s be straight with you—this is a tough stretch of water for anyone wanting a proper surf. The whole 16-day window is basically a write-off for decent waves at Sandy Beach. We’re looking at a long, frustrating run of poor surf conditions, with only a couple of fleeting moments that might get you excited for a paddle, but even those are marginal at best.

The first real period starts on Sunday the 16th. There’s some swell in the water – around 8ft from the ENE with a 9-second period – but the wind is on it from the ESE at 16 mph, and there’s a risk of thunderstorms. It’s messy, choppy, and just not inviting. The energy is moderate, but it’s all over the place. The following Monday and Tuesday, the swell drops right off to under 3ft, and we’re left with a cross-shore breeze making it lumpy. The water temp is 81° with a normal anomaly, so nothing weird there, but you won’t be in the water long enough to care.

We then go into a proper lull. From the 18th through to the 24th, we’re seeing tiny, weak swells – most under 3ft – with short periods and cross-shore winds. The energy is weak to moderate, but it’s not doing anything for us. It’s poor surf conditions day after day. There’s a brief pulse on the 24th, but it’s still only 4ft with a 6-second period and a fresh cross-shore wind – that’s just junky. This is a blank run, and for Sandy Beach, that’s more normal than not.

The end of the window, around the 25th and 26th, sees the swell pick up to 6ft to 7ft from the ENE with a short 7-second period. The energy is strong, but the wind is cranking at 25 mph, creating a strong cross-shore mess. This isn’t surf for anyone; it’s more like a washing machine. The setup looks far more interesting for kite surfing than paddle surfing – you’d be fighting a losing battle out there.

The only tiny glimmer is on Sunday the 30th. The swell is 4ft in the morning and 5ft in the afternoon, from the east with a 14-second period. That’s a proper groundswell, and the energy is moderate. The wind is lighter in the morning, a gentle 9 mph cross-onshore, but it’s still marked as marginal or questionable tide conditions. It’s promising but not a sure thing, and it’s 12 days out, so I’d take that with a grain of salt. The longer period should help shape it up at this beach-and-reef setup, but the cross-onshore wind will still put a bit of chop on it. It’s the best of a bad bunch, but I wouldn't plan a trip around it.

Right, that’s the grim reality. The surf is poor, the wind is wrong, and the swell is just not cooperating. Keep your board in the car for a sunny day, but don’t hold your breath.

Rusty.

Short Range Forecast

Heavy rain (total 51mm), heaviest during Sun morning. Warm (max 26°C on Sat afternoon, min 24°C on Sat night). Winds decreasing (near gales from the ENE on Sat afternoon, light winds from the ENE by Sun night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Thu morning, min 24°C on Tue night). Wind will be generally light.

Sat
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
4.5
ENE
10
4
E
10
2.5
ENE
9
2.2
ENE
8
1.8
ENE
8
1.5
ENE
8
0.8
S
14
1.3
ENE
7
1.3
ENE
7
0.7
S
13
1.2
ENE
8
1
ENE
8
0.8
E
8
0.8
E
8
0.6
SSW
18
0.6
SSW
17
0.9
ENE
7
0.8
ENE
7
0.8
NE
7
0.8
SSW
16
Wave Graph
Metric surfscale
Energy kJ
3876
2911
1057
676
394
264
260
170
165
162
163
147
100
82
207
200
77
59
54
322
Wind (km/h)
60
ENE
45
E
25
ESE
20
E
20
ENE
30
ENE
30
ENE
25
ENE
30
ENE
25
ENE
25
ENE
20
ENE
20
NE
20
NE
20
NE
20
NE
20
NE
15
NE
20
NE
15
ENE
Wind State
cross
cross-on
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
4:53PM0.55m
5:55AM0.48m
5:21PM0.47m
6:52AM0.50m
5:48PM0.38m
7:56AM0.52m
6:10PM0.31m
9:08AM0.53m
10:20AM0.55m
8:45PM0.20m
11:21AM0.57m
10:59PM0.20m
Low Tide
11:44PM0.05m
11:53AM0.20m
00:11AM0.05m
1:08PM0.25m
00:39AM0.07m
2:59PM0.27m
1:14AM0.09m
2:00AM0.10m
7:38PM0.20m
3:06AM0.11m
7:49PM0.17m
4:20AM0.10m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
<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>
7:00
7:00
6:59
6:58
6:57
6:57
6:55
 mm
1
11
31
6
2
Temp °C
26
26
24
26
25
25
25
25
25
25
25
25
25
25
26
26
25
25
26
26
Feels °C
21
20
22
27
24
24
23
23
23
23
24
25
25
26
27
26
26
26
28
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 
submit an eyeball surf report

Quick surf report for Sandy Beach:

join our community of surf reporters

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 Sandy 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.


Information about the Sandy Beach Surf forecast

The above surf forecast table for Sandy Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sandy Beach can be found by selecting the local surf guide option on the grey menu. Our Sandy 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 (Sandy 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 Sandy 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.

Sandy's Beach is 15 km (9 miles) from the city of Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest