Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.6° 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 30 Jul 2026:

  • Most powerful swell: Saturday 1 Aug, 5AM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,055 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 (Aug 01) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Friday (Jul 31) at 5PM.

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

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


The Lowdown

Imperial Units

Alright, folks, Rusty here with the lowdown on Sandy Beach.

I’m not gonna sugarcoat it – this is a rough stretch of forecasts. Over the next 16 days, there’s not a single session that screams “go.” The whole story is a stubborn east-northeast wind blowing straight across the break, churning the surface into a lumpy, cross-chop mess. The first week, from Thursday the 30th of July through about Wednesday the 5th of August, is a total loss. The swell is there, but it’s short-period junk, and the wind is strong enough to ruin any chance of a clean wave. The wave energy is moderate to strong (429 to 1354), but it’s busy, messy energy.

The water out here is 80°F, which is dead average for this time of year, so that’s one small comfort.

The second week doesn’t offer much relief. There’s a half-hearted chance on Tuesday, the 4th of August, when the swell period stretches to 12 seconds, delivering a 5ft wave from the ENE. The wind eases a bit, but it’s still cross-shore. The longer period is a double-edged sword at a beach and reef spot like this – it can make the waves run too straight. It’s a marginal day at best, not a stand-out.

The most interesting pulse comes on Sunday, the 9th, and Monday the 10th of August. We get a shot of long-period groundswell from the south-southwest, with periods of 16 to 19 seconds. The combined energy on Monday morning is strong at 1124. But here’s the problem: the wind is still hammering from the ENE, and the swell is coming from the wrong direction. This spot loves an east-southeast swell, and we’re getting the opposite. The waves will be there, but they’ll be a messy, cross-shore mess. It’s expert-only, and even then, it’s not a good time.

To be honest, a kiteboarder would have a field day with this relentless cross-wind and lumpy water. For a surfer, this is a 16-day dud. It’s a blank run, and it’s pretty normal for this area when the trade winds get stuck. Best to save your energy for the next forecast.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Fri night). Winds increasing (light winds from the ENE on Thu afternoon, strong winds from the ENE by Fri night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sun morning, min 24°C on Sun night). Winds decreasing (strong winds from the ENE on Sun morning, light winds from the ENE by Tue night).

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
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
1
1
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
8
0.6
SSW
18
1.5
E
7
1.7
E
8
1.8
ENE
8
3
E
8
2.5
E
8
2.5
ENE
8
3
ENE
8
2.3
ENE
8
2.2
ENE
8
2
ENE
8
1.7
ENE
8
1.5
ENE
8
1.3
ENE
9
1.5
ENE
12
1.4
ENE
11
1.3
ENE
10
1.2
ENE
10
1.1
ENE
9
1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
250
207
251
329
385
1033
902
939
1009
720
682
554
394
321
237
583
452
345
248
184
147
Wind (km/h)
25
ENE
25
ENE
25
ENE
35
ENE
40
ENE
45
ENE
45
ENE
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
30
NE
30
NE
20
NE
20
NE
25
NE
15
ENE
20
ENE
25
ENE
15
ENE
Wind State
cross
cross-on
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
High Tide
3:57PM0.68m
4:08AM0.30m
4:25PM0.65m
4:55AM0.33m
4:53PM0.60m
5:48AM0.38m
5:22PM0.53m
6:48AM0.43m
5:53PM0.45m
7:57AM0.48m
6:26PM0.37m
9:10AM0.55m
7:10PM0.29m
Low Tide
8:58AM0.02m
11:13PM0.07m
9:38AM0.05m
11:37PM0.06m
10:23AM0.11m
00:02AM0.05m
11:17AM0.16m
00:29AM0.04m
12:27PM0.23m
00:59AM0.04m
2:07PM0.27m
1:37AM0.03m
4:33PM0.27m
2:24AM0.02m
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:03
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:09
7:08
7:08
7:07
7:07
7:07
 mm
1
Temp °C
26
27
26
26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
26
26
26
Feels °C
28
28
26
23
21
21
20
21
21
21
21
22
23
23
23
25
25
25
27
26
27
  • 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
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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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