Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 01 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: Saturday 5 Sep, 11PM (local time) - 8ft (2.4m), 13s period, ENE swell with 1,989 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 2.4m 13s and forecast to arrive on Saturday (Sep 05) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 14s period and expected on Tuesday (Sep 08) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (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 take a good hard look at what the next couple of weeks have in store for us. Gotta be straight with you – this stretch is a tough one. The wind is going to be the main story, and it’s not a good one for most of the run. We’ve got lots of size, but the wind just won’t get out of the way.

Right now, there’s no surf to chase. It’s flat out poor, with a strong cross-onshore breeze. That sets the tone for a long wait. The first real chance at something half-decent doesn’t show up until Saturday the 5th of September.

That Saturday morning, we’ve finally got some energy to talk about. The swell is pumping at 8ft from the ENE with a long 14-second period – that’s proper groundswell energy. The combined energy is a beefy 2512 (strong to very strong), so there’s plenty of push. The wind is still a fresh cross-shore though, keeping things lumpy and cross-chop. It’s not clean, but it’s the first time you can actually get out and wrestle a couple. That same lumpy, cross-shore story continues through Sunday the 6th and into Monday the 7th.

Now, Monday the 7th of September is the one bright spot in the first week. The swell holds at 8ft from the ENE with a long 13-second period. The energy is still strong at 2154. But here’s the key: the wind drops right back to a gentle breeze, a light cross-shore. That wind state is the best we’ll see for days. It’s still a cross-shore, but it’s light enough that Sandy Beach will be the most rideable it’s been all week. It won’t be glassy, but it’s the standout by a long shot. After that, we’re straight back into poor, messy conditions with stronger winds through the rest of the week.

Looking further out, there’s a little glimmer in the second week. On Monday the 14th of September, there’s a 7ft swell from the S with an 8-second period, combined energy of 912 (moderate). The wind is light from the NE, so it might be a bit cleaner. Then on Thursday the 17th, we get a sneaky SSW groundswell at 3ft with a very long 17-second period. The combined energy is 1017. That long period will wrap in nicely, but it’s a smaller swell.

If you’re a beginner, keep your board on the sand most of this period. The swell is often over 5ft, and with the cross-wind, it’s going to be a battle. The 8ft on the 7th is expert territory for sure, especially with the junky conditions.

So, the call is simple: wait for Monday the 7th of September. It’s your best bet for the whole run. The buzz is that the water temp is about average for this time of year, so a 3/2 will do you fine. Don’t get sucked in by the other days – they’re gonna be a slog.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Warm (max 26°C on Tue night, min 25°C on Tue night). Mainly strong winds.

Days 5-7 Weather Summary

Moderate rain (total 14mm), heaviest on Mon morning. Warm (max 26°C on Fri night, min 23°C on Mon morning). Winds decreasing (strong winds from the ENE on Fri night, light winds from the ESE by Mon morning).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
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
1
1
2
1
1
1
3
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
ENE
8
2.1
ENE
8
2
ENE
8
2.5
ENE
8
2.1
ENE
7
2.5
E
8
2.4
ENE
8
2.3
ENE
7
2.2
ENE
8
1.4
E
14
2.3
ENE
14
2.3
ENE
13
2.4
ENE
13
2.3
ENE
13
2.3
ENE
12
2.4
ENE
12
2.4
ENE
13
2.3
ENE
12
2.2
ENE
11
Wave Graph
Metric surfscale
Energy kJ
527
520
502
711
456
717
623
543
553
711
1846
1804
1930
1610
1485
1697
1787
1581
1162
Wind (km/h)
35
ENE
40
ENE
40
ENE
40
ENE
45
ENE
45
ENE
45
ENE
40
ENE
40
NE
35
ENE
30
ENE
35
ENE
25
ENE
25
NE
25
ENE
20
E
15
NE
25
ENE
15
ESE
Wind State
cross
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
on
High Tide
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
12:48PM0.73m
1:03AM0.31m
Low Tide
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
5:40AM0.04m
8:09PM0.07m
rain showers
rain showers
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
clear
thunderstorm
thunderstorm
mod rain
cloud
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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:45
6:45
6:44
6:43
6:42
6:40
 mm
1
1
1
5
8
4
Temp °C
26
26
26
25
25
25
25
25
25
26
26
26
26
26
26
26
24
26
26
Feels °C
24
24
23
22
21
20
20
20
20
23
23
24
25
26
25
26
26
26
26
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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