Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.0° C
0.6° 

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 3 Aug 2026:

  • Most powerful swell: Tuesday 4 Aug, 2AM (local time) - 5ft (1.6m), 12s period, ENE swell with 701 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 1.6m 12s and forecast to arrive on Tuesday (Aug 04) at 2AM. 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 15s period and expected on Wednesday (Aug 05) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Tue 4th Aug)5ft (1.6m) 12s

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


The Lowdown

Alright, folks, Rusty here. Let’s be straight with you—this stretch is a real bummer for Sandy Beach. We’ve got a solid 16-day window, but honestly, the surf just isn’t cooperating. The wind is a persistent problem, and most of the time, the conditions are just plain ugly.

We kick off on Sunday, August 2nd, with a 7 ft swell out of the ENE, but don’t get excited. The wind is howling at 25 mph from the same direction, creating a messy cross-chop. The water’s sitting at a warm 81°, which is about average for this time of year, but that’s the only nice thing I can say. The combined swell energy is moderate (865), but it’s all for nothing with that wind. The whole first week is a write-off, with Monday and Tuesday showing similar issues—cross-shore winds and lumpy conditions. Even when the swell drops to 4 ft, the wind is still ruining it.

The only flicker of hope comes on Tuesday, August 4th, in the morning. We get a 5 ft swell with a period of 11 seconds, which is a decent groundswell, and the wind drops to a gentle 9 mph. It’s still cross-shore, but it’s the cleanest we’ll see. The energy is moderate (561), and it’s the highest score of the whole forecast. This is your best shot, but it’s still a marginal call. The waves are likely to be a bit straight with that longer period, so it’s for the better surfers who can work a beach break.

After that, it’s back to the grind. From Wednesday, August 5th, through to the end of the first week, we have a mix of weak swells (down to 1 ft on the 7th) and strong, gusty winds. The break is consistent, but it’s consistently poor.

Heading into the second week, the pattern doesn’t change. We get a brief spike on August 12th with a 3 ft swell from the south, but the period is very long (18 seconds). The energy is strong (918), but the wind is cross-onshore, making it lumpy. That’s a no-go for a beach break—it’ll be too straight and messy. The same goes for the 13th, with a 4 ft swell and 16-second period, energy at 1073, but again, strong cross-onshore wind.

The final few days, from August 14th to the 17th, see a bigger swell of 8 ft to 7 ft from the ENE, but the wind is still a brutal 25 mph cross-shore. At this size, it’s getting into expert territory, and with that wind, it’s just a washing machine. This setup is honestly more interesting for kite surfing than a paddle session.

So, the bottom line: there’s no standout here. The best you’ll get is that Tuesday morning window, but it’s a gamble. For the rest, you’re better off waiting for the next forecast. This is a blank run, and for Sandy Beach, that’s not unusual when the trade winds lock in.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Mon morning, min 25°C on Sun afternoon). Winds decreasing (fresh winds from the ENE on Sun afternoon, light winds from the ENE by Tue morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Wed afternoon, min 25°C on Wed night). Mainly fresh winds.

Sun
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
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
1
1
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)
2.1
ENE
8
2.1
ENE
8
1.6
ENE
8
1.4
ENE
8
1.6
ENE
12
1.5
ENE
11
1.3
ENE
11
1.3
ENE
10
1.2
ENE
10
1.1
ENE
9
1.1
ENE
9
1.2
ENE
8
1
ENE
8
0.4
SSE
11
0.4
SSW
14
0.4
SSW
14
1.5
ENE
6
1.5
ENE
7
1.4
ENE
7
1.3
NE
7
Wave Graph
Metric surfscale
Energy kJ
606
578
353
277
701
515
359
358
258
188
190
181
122
40
77
73
176
198
186
152
Wind (km/h)
40
ENE
30
ENE
25
ENE
30
NE
20
ENE
15
ENE
20
NE
20
ENE
20
ENE
25
NE
20
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
High Tide
5:22PM0.53m
6:48AM0.43m
5:53PM0.45m
7:57AM0.48m
6:26PM0.37m
9:10AM0.55m
7:10PM0.29m
10:22AM0.61m
8:39PM0.22m
11:25AM0.67m
10:36PM0.19m
12:21PM0.73m
00:00AM0.20m
Low Tide
00:29AM0.04m
12:27PM0.23m
00:59AM0.04m
2:07PM0.27m
1:37AM0.03m
4:33PM0.27m
2:24AM0.02m
6:43PM0.21m
3:25AM0.02m
7:38PM0.16m
4:32AM0.00m
8:16PM0.11m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:08
7:07
7:07
7:07
7:06
7:06
7:05
 mm
Temp °C
25
25
26
26
25
26
26
25
26
26
25
25
25
25
25
26
25
25
25
25
Feels °C
21
22
24
25
24
27
26
25
26
26
24
25
24
24
23
24
24
24
22
23
  • Map Icons:
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  • 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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