Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 06 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 7 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 5AM (local time) - 4.5ft (1.3m), 10s period, ENE swell with glassy winds.
  • Most powerful swell: Monday 7 Sep, 11AM (local time) - 8ft (2.4m), 12s period, ENE swell with 1,703 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 5AM (local time) - 4.5ft (1.3m), 10s 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 Wednesday (Sep 09) at 5AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 1.3m and 10s. Another secondary swell of 0.9m and 8s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Sandy Beach in the next 16 days are 2.4m 12s and forecast to arrive on Monday (Sep 07) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 14s period and expected on Tuesday (Sep 08) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 9th Sep)4.5ft (1.3m) 10s
Best Surf 5AM (Wed 9th Sep)4.5ft (1.3m) 10s
Most Powerful11AM (Mon 7th Sep)8ft (2.4m) 12s

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


The Lowdown

G'day, I'm Rusty. Let's have a look at what's coming up at Sandy Beach. It's a beach and reef setup that's fairly consistent, but to be honest, this 16-day run is a bit of a dog's breakfast. The wind is just about always messing it up, and the swell doesn't line up cleanly. The water temp is around what you'd expect for this time of year, so no dramas there.

We start off with a bang, but not a good one. Monday the 7th sees a solid 8ft swell from the ENE, packing a heap of energy (2224) – that's strong stuff. But a brisk east wind is blowing straight across it, making it a choppy, poor surf mess. It's a write-off. Tuesday the 8th is more of the same, with a 6ft ENE swell and howling south winds. Not worth paddling out.

The first hint of something better comes Wednesday morning the 9th. The swell drops right back to 3ft but swings to the SSW with a nice long 14-second period. The wind eases to a light breeze. It's still cross-onshore, so the face will be a bit bumpy, but this is the best we've seen. It's marginal, but at least it's small and clean enough for an intermediate to have a poke around. Wave energy is moderate (521).

Then we hit a dry spell. From Thursday the 10th right through to Tuesday the 15th, it's all poor conditions. The swell is either too small or coming from the ENE with short, weak period. The wind is moderate or fresh and always cross or cross-onshore. It's lumpy, choppy, and not worth a second look. A full week of nothing doing.

We get a pulse on Wednesday the 16th with the swell jumping to 5ft from the ENE, but it's only a 7-second period – no grunt. The wind is still cross-shore and messy. It's still poor.

Now, look ahead. Thursday the 17th has a tiny 3ft swell from the SSW, but the period is a very long 16 seconds. That's proper groundswell energy, and for a beach and reef mix like Sandy Beach, a long-period SSW swell can sometimes wrap in and give a clean wall if you get the tide right. Wave energy is moderate (608). The wind is still a moderate cross-shore though, so it's marginal at best. That's our second possible window.

The pattern repeats into the next week. Friday the 18th has more ENE windswell, short period and choppy. Saturday the 19th has another 3ft SSW, 16-second swell with lighter winds, but still cross-onshore. It's marginal again. Sunday the 20th and Monday the 21st are poor.

Truth is, there's no standout session here. The best of a bad bunch is likely Wednesday morning the 9th, with that small, long-period SSW groundswell and light winds, or maybe the Saturday the 19th afternoon for the same reason. If you're desperate, you might find a clean little wave on those days. But for the rest of it, the wind is the enemy. If the swell gets up over 5ft with this onshore wind, it's going to be a washing machine.

Crowds at Sandy Beach can be a factor when it's on, but with this outlook, you'll likely have it to yourself.

Rusty.

Short Range Forecast

Heavy rain (total 30mm), heaviest during Sun night. Warm (max 27°C on Mon morning, min 24°C on Sun night). Winds decreasing (strong winds from the SSE on Mon night, light winds from the SSE by Tue night).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Wed night. Warm (max 26°C on Wed night, min 25°C on Thu morning). Mainly fresh winds.

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
2
2
1
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)
2.3
ENE
12
2.4
ENE
12
2.4
ENE
12
2.1
ENE
12
1.9
ENE
11
1.6
ENE
11
1.4
ENE
10
0.9
SSW
14
0.9
SSW
13
0.7
E
13
1.5
ENE
7
1.4
ENE
7
1.3
ENE
7
0.8
ENE
11
1.3
ENE
8
1.1
ENE
11
1
ENE
10
0.9
ENE
10
1.1
ENE
10
Wave Graph
Metric surfscale
Energy kJ
1461
1703
1590
1190
870
608
378
269
257
176
242
197
173
167
183
256
214
173
210
Wind (km/h)
15
E
25
E
20
ESE
40
SSE
35
S
25
SSW
5
SSW
10
ESE
10
SE
25
ENE
30
ENE
30
NE
30
ENE
25
ENE
25
NE
25
ENE
20
ENE
25
NE
15
ENE
Wind State
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
00:14AM0.26m
12:48PM0.73m
1:03AM0.31m
1:30PM0.72m
1:48AM0.38m
2:07PM0.69m
2:29AM0.44m
2:41PM0.65m
3:11AM0.50m
3:13PM0.59m
3:51AM0.55m
3:42PM0.51m
4:32AM0.57m
Low Tide
5:40AM0.04m
8:09PM0.07m
6:40AM0.03m
8:36PM0.05m
7:34AM0.03m
9:01PM0.04m
8:25AM0.05m
9:26PM0.04m
9:14AM0.08m
9:49PM0.03m
10:05AM0.12m
10:11PM0.04m
thunderstorm
thunderstorm
thunderstorm
rain showers
rain showers
clear
thunderstorm
clear
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:15
6:16
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:42
6:40
6:39
6:38
6:37
6:37
6:36
 mm
11
2
2
8
3
3
1
3
Temp °C
26
27
27
27
27
27
27
27
27
26
26
26
25
25
25
25
25
25
25
Feels °C
25
27
27
27
26
27
30
31
30
29
25
25
24
24
23
24
24
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)
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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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