Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.9°C
0.0° 

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 1 Sep 2026:

  • Best quality surf: Monday 7 Sep, 8PM (local time) - 7ft (2.2m), 11s period, ENE swell with offshore winds.
  • Most powerful swell: Saturday 5 Sep, 11AM (local time) - 8ft (2.4m), 13s period, ENE swell with 1,901 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 8PM (local time) - 7ft (2.2m), 11s period with ENE swell.

Best Forecast Surf Conditions for Sandy Beach this week:

The surf forecast for Sandy Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 8PM. The primary swell is predicted to be 2.2m and 11s period with a secondary swell of 1.0m and 15s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Sandy Beach in the next 16 days are 2.4m 13s and forecast to arrive on Saturday (Sep 05) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 11s period and expected on Sunday (Sep 06) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 7th Sep)7ft (2.2m) 11s
Best Surf 8PM (Mon 7th Sep)7ft (2.2m) 11s
Most Powerful11AM (Sat 5th Sep)8ft (2.4m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s be straight with you – this is a tough one for Sandy Beach. We’ve got a solid 16-day window ahead, but it’s a real battle between the size coming in and the wind absolutely ruining it. The first week is a write-off for any kind of quality surfing, so we’re looking at a long wait. The standout, and really the only window that’s worth paddling out for, is the afternoon of Monday the 7th of September.

For the first week, from the end of August right through to the 6th of September, it’s just a mess. We’re seeing solid swell, with heights hanging around 7 ft to 8 ft and moderate wave energy (743 to 1680 in the energy readings), but it’s all coming from the ENE or E at a short, weak period of 8 seconds. The real killer is the wind. It’s a relentless cross-shore or cross-onshore breeze, blowing 22 to 28 mph most days. That’s creating lumpy, messy cross-chop that’s just not surfable. The water temp is sitting at 80°, which is bang on normal for this time of year, but you wouldn’t know it through all that wind bump. Honestly, this setup looks way more interesting for kite surfing than paddle surfing.

Then we hit the 7th of September. The morning is still a bit rough with a fresh cross breeze, but check out Monday afternoon. The wind swings to the north at a gentle 9 mph, going cross-offshore. That’s the ticket. The swell is still a solid 8 ft from the ENE, but now with a much better period of 11 seconds, giving it some real push and shape. The energy is high (1872), but that clean wind is going to make all the difference. It’s still a big wave for beginners, but for the experienced crew, this is the moment. The only catch is Sandy Beach is a beach and reef setup, so while that long period groundswell will have some power, it might break a bit straight in sections. Keep an eye on the tide.

After that, things drop off. The 8th of September sees a tiny pulse from the SSW with a very long 15-second period, but the swell is only 3 ft to 4 ft, and the wind is onshore, so it’s a no-go. The rest of the second week is a slow fade. We’re looking at small, weak swell with energy dropping below 500, and the wind stays stubbornly cross or cross-on. The 13th and 14th of September have some tiny 2 ft to 2 ft leftovers from the south, but the period is long and the wind is messy. It’s a flat, frustrating run to finish the outlook.

So, to sum it up: the first week is a complete dud. The only real chance is Monday afternoon, the 7th of September. That’s your window. It’s a gamble with the wind, but if it holds, it’ll be the best we see for the whole 16 days.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Mon afternoon). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sat night. Warm (max 26°C on Sat morning, min 25°C on Thu afternoon). Winds decreasing (strong winds from the ENE on Thu afternoon, moderate winds from the ENE by Sat night).

Mon
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
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)
2
ENE
8
2
ENE
8
2
ENE
8
1.9
ENE
8
2
ENE
8
2.1
ENE
8
2.3
ENE
8
3
ENE
8
2.5
E
8
2.4
ENE
8
3
ENE
8
2.5
ENE
8
2
ENE
8
2.3
ENE
13
2.4
ENE
13
2.3
ENE
13
2.3
ENE
13
2.3
ENE
13
2.3
ENE
13
2.3
ENE
12
Wave Graph
Metric surfscale
Energy kJ
428
439
475
453
475
494
620
1029
877
640
1003
893
474
1713
1901
1697
1697
1723
1610
1493
Wind (km/h)
35
ENE
35
ENE
35
NE
35
NE
35
ENE
40
ENE
40
ENE
40
ENE
45
ENE
45
ENE
45
ENE
45
ENE
40
ENE
35
ENE
30
ENE
30
ENE
25
ENE
30
ENE
35
ENE
30
NE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross
cross
High Tide
4:46PM0.43m
6:14AM0.56m
5:18PM0.36m
7:19AM0.59m
5:54PM0.28m
8:36AM0.61m
7:01PM0.22m
9:55AM0.64m
9:27PM0.19m
11:03AM0.68m
11:10PM0.21m
12:00PM0.71m
00:14AM0.26m
Low Tide
11:23PM0.04m
12:53PM0.23m
11:56PM0.04m
2:47PM0.24m
00:39AM0.05m
5:18PM0.21m
1:39AM0.06m
6:33PM0.16m
3:03AM0.07m
7:10PM0.12m
4:28AM0.06m
7:41PM0.09m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
thunderstorm
thunderstorm
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:15
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:45
6:45
6:44
6:43
6:42
 mm
2
1
Temp °C
26
25
25
26
26
26
26
26
26
25
25
25
25
25
26
26
26
26
26
26
Feels °C
22
21
22
24
24
23
23
23
22
20
20
20
20
21
25
24
25
25
24
25
  • 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