Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.1°C
0.2° 

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 2 Sep 2026:

  • Most powerful swell: Tuesday 8 Sep, 2PM (local time) - 16ft (5.0m), 14s period, SSW swell with 10,059 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 14s and forecast to arrive on Tuesday (Sep 08) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 15s period and expected on Tuesday (Sep 08) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Tue 8th Sep)16ft (5.0m) 14s

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


The Lowdown

Alright, folks, Rusty here again. Let’s break it down in feet and miles per hour for the imperial crew. Same deal – Sandy Beach is the only spot on the menu, and it’s a rough 16-day outlook. The wind is relentless, mostly blowing from the ENE at 25 to 30 mph, keeping the surface chopped and messy. There’s no real standout, just a long stretch of poor to marginal conditions.

The first few days, Wednesday the 2nd through Thursday the 3rd, are a washout. Swell is 7 to 8 feet from the ENE, but the wind is howling at 25 mph onshore, making it a cross-onshore mess. The water temp is around 81°, which is average for the season. Combined energy is moderate (900 to 977), but the quality is poor. Don’t bother.

Friday the 4th brings a shift – a 4-foot swell from the S with a 12-second period, and later a 4-foot swell from the E with a 14-second period. The combined energy jumps to 1413 and 1428, which is strong. But the wind is still 25 mph cross-shore, making it lumpy. The long period means spaced-out sets, but with that wind, it’s not worth the paddle.

Saturday the 5th through Monday the 7th are all marginal. Swell hangs around 7 to 8 feet with long periods (12 to 14 seconds), and combined energy climbs into the 2000s, even hitting 3977 on Monday afternoon. But the wind is cross-shore from the NE or ENE at 15 to 22 mph. The waves have power, but they’re ugly. This setup is more interesting for kite surfing than paddle surfing.

Tuesday the 8th is a beast. Morning brings a 31 mph onshore wind from the SSE, and the afternoon kicks up a 15-foot SSW swell with a 13-second period and combined energy of 8165. That’s very strong energy. But the wind is cross-onshore and fresh, and the wave comment says “poor surf conditions.” Expert only, and even then, you’re fighting a losing battle.

From Wednesday the 9th through Friday the 11th, it’s more of the same: swell drops to 4 to 6 feet, combined energy falls to 500 to 1100, and the wind stays cross-shore at 15 to 22 mph. Nothing to get excited about.

Saturday the 12th and Sunday the 13th offer a slight glimmer. Swell drops to 5 and 5 feet from the ENE with 10 to 11-second periods. The combined energy is weak to moderate (551 to 791). The wind eases right off – Saturday morning has a light 3 mph breeze from the E, and the wave state is “light cross-onshore with small wind ripples.” It’s the best of a bad bunch, but still marginal.

Monday the 14th afternoon is the closest we get to clean. The wind goes glassy, and the swell is 4 feet from the ENE with an 8-second period. The combined energy is only 308, so it’s weak, but glassy conditions are rare. The short period means the waves will be soft and crumbly. It’s a small window for a longboard, but not a standout.

After that, Tuesday the 15th through Thursday the 17th is back to poor. Swell drops to 3 to 3 feet, with long periods (16 to 21 seconds) from the SSW. The combined energy is moderate (734 to 953), but the wind is cross-shore or cross-onshore at 9 to 19 mph. The wave state is choppy or lumpy. The long period is a tease – it’ll be clean at a reef, but Sandy Beach is a beach-and-reef setup, and those long-period swells close out on a beach break.

So, the verdict? No standout. The whole 16 days are a write-off. The best you can hope for is a marginal session on Monday the 14th afternoon if the glassy wind holds, or maybe a small window on Saturday the 12th morning. If you’re a beginner, the swell never gets over 5 feet on those days, so it’s safe, but the quality is poor. For experts, the 15-foot day on the 8th is a miss because of the wind. This is a long, blank run for Sandy Beach.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Sun night. Warm (max 27°C on Mon night, min 23°C on Sun night). Winds increasing (light winds from the SE on Sun night, strong winds from the SE by Mon night).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
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
1
1
1
1
1
1
2
1
2
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)
2
ENE
8
2
ENE
8
2.4
ENE
8
2
ENE
7
2.4
ENE
7
2.2
ENE
7
1.3
S
12
1.2
E
14
1.4
S
13
2.3
ENE
14
2.1
ENE
13
2.1
ENE
13
2.1
ENE
12
1.9
E
12
2.1
ENE
12
2.2
ENE
13
2.4
ENE
13
2.5
ENE
12
2
ENE
11
4.5
SSW
13
2.5
SSW
10
Wave Graph
Metric surfscale
Energy kJ
487
502
627
440
588
498
513
569
620
1858
1467
1467
1336
1062
1180
1451
1886
1807
991
7274
1225
Wind (km/h)
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
30
ENE
35
NE
30
ENE
30
ENE
30
NE
15
E
25
ENE
25
ENE
25
ESE
45
SSE
35
SSE
20
SSE
Wind State
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
on
cross-on
on
High Tide
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
12:48PM0.73m
1:03AM0.31m
1:30PM0.72m
1:48AM0.38m
Low Tide
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
5:40AM0.04m
8:09PM0.07m
6:40AM0.03m
8:36PM0.05m
rain showers
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
thunderstorm
light rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:15
6:15
6:15
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:44
6:43
6:42
6:40
6:39
 mm
1
6
3
5
5
3
3
5
Temp °C
25
26
25
25
25
25
25
25
25
25
26
25
26
26
26
25
25
27
27
27
27
Feels °C
23
23
22
22
21
21
21
21
21
22
24
23
25
25
26
24
25
25
23
25
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