Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.1°C
0.3° 

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 29 Aug 2026:

  • Most powerful swell: Saturday 5 Sep, 2PM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,351 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 3.0m 8s and forecast to arrive on Saturday (Sep 05) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 17s period and expected on Saturday (Aug 29) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sat 5th Sep)10ft (3.0m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about the next 16 days for Sandy Beach. It’s a bit of a rough patch, I gotta be straight with you.

Right off the bat, we’ve got a long stretch with no real good options. The whole first week is a write-off, and it doesn't get much better after that. The wind is a persistent problem here – it’s coming from the ENE, which is a cross-shore, and it’s blowing fresh to strong, just making a mess of everything. The water temp is sitting at about 81°F for the first session, which is pretty normal for this time of year. Even though there’s a bit of swell around, that ENE wind is ruining any chance of a clean wave.

The first few days, from August 29th all the way through September 4th, it’s just poor surf conditions. The swell is there, but it’s short period, wind-affected junk. The combined wave energy is moderate to strong, hitting numbers like 440 to 849 (moderate to strong energy), but it doesn’t matter when the wind is shredding it. The waves are lumpy, cross-chop – not what you want to paddle out into.

Then September 5th and 6th get a bit heavy. The swell really picks up, with heights hitting 10ft and even 16ft on the 6th, but the wind gets nasty too. We’re talking near gale-force cross-shore winds. The energy is massive, hitting 5930 (very strong energy) on the 6th, and the period gets long at 11 seconds. But with that wind, the surf is just a washing machine. That kind of size and wind – this is kite-surfing territory, not really a paddle-out situation for most. The 16ft swell is strictly for experts, but the conditions are so bad it’s hard to recommend for anyone.

There’s a tiny glimmer on September 9th. The afternoon shows a “marginal” call, with a 8ft swell from the ENE and a 9-second period, and the wind drops to a fresh breeze. The energy is still strong (1016), but it’s the least bad we’ve seen. Still, it’s cross-shore, so it’s going to be lumpy. Later on, September 12th and 13th also have “marginal” tags, with a gentler breeze on the 13th, but the swell is still messy and cross-onshore. Honestly, it’s a long wait for anything that looks even slightly fun, and even then, it’s not a standout. The best bet is to keep an eye on the forecasts and hope the wind pattern shifts, because right now, it’s a tough run.

Rusty, signing off.

Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 26°C on Sun afternoon, min 25°C on Sat morning). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Tue morning, min 24°C on Thu night). Mainly fresh winds.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
AM
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
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
ENE
6
1.4
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
7
1.7
ENE
7
1.9
ENE
7
1.8
ENE
8
1.9
ENE
8
1.8
ENE
8
1.9
ENE
8
2.2
ENE
8
0.9
S
16
0.8
S
16
1.9
ENE
7
1.8
ENE
8
1.7
ENE
8
1.7
ENE
7
1.9
ENE
7
1.8
ENE
7
2.3
ENE
7
Wave Graph
Metric surfscale
Energy kJ
172
166
444
383
348
265
387
353
410
382
441
582
422
318
379
383
322
319
311
334
560
Wind (km/h)
35
ENE
40
ENE
40
ENE
40
ENE
35
NE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
30
NE
35
ENE
35
ENE
40
ENE
Wind State
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
High Tide
3:48PM0.58m
4:31AM0.49m
4:17PM0.51m
5:19AM0.53m
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
Low Tide
9:43AM0.10m
10:32PM0.05m
10:34AM0.14m
10:56PM0.04m
11:35AM0.19m
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
clear
clear
part cloud
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:47
6:46
6:46
6:45
6:45
6:44
 mm
1
Temp °C
25
25
25
25
26
25
25
25
25
26
25
25
26
26
25
25
25
25
25
26
25
Feels °C
22
21
21
21
22
22
22
22
22
23
22
22
25
24
23
21
22
21
21
22
21
  • 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