Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 am 03 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 (1.5m), 12s period, ENE swell with 623 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 1.5m 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 (1.5m) 12s

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


The Lowdown

Alright, Rusty here. Let's have a look at what's on the table for Sandy Beach.

Right off the bat, I gotta be straight with you—this 16-day window is a rough one for Sandy Beach. The waves are around, but the wind is just a constant nightmare. It's coming from the ENE, and it's cross-shore or cross-on-shore almost every single day, which is just going to chop everything up. It's a real bummer because there's some decent energy in the water, but it's all going to be blown out.

We start off the first week with a pulse of swell. On Monday, the 3rd of August, we’ve got a 5ft ENE swell with an 8-second period, pushing a moderate 470 units of combined energy. But with a 15 mph cross-shore wind, it's just poor. The water temp is a warm 81°, which is pretty normal for this time of year. Tuesday, the 4th, the period stretches out to 11 seconds, which is a nice sign of better groundswell, and the energy bumps up to 587, but the wind sits at 9 mph cross-shore and the report calls it "marginal." It's still too messy to get excited about.

The rest of the first week and into the second is more of the same. The swell hangs around the 3ft to 6ft mark, but the wind sometimes picks up to a strong 22-25 mph. The combined energy shows some moderate to strong numbers, like 604 and 836. But with the wind howling cross-shore, the wave quality is just "poor" every time. It's a classic case of all the energy and no shape.

Now, there is a glimmer in the very long range. On the 12th of August, a Wednesday, we see a pulse of S swell with a very long 18-second period, pushing energy up to 1000. That's a proper groundswell. But it's still crossed-up by a 22 mph ENE wind. The next day, the 13th, the swell drops to 3ft from the S with a 16-second period, still good energy, but the wind is a cross-onshore 15 mph. It's frustrating.

The real "maybe" is on Monday, the 17th of August. A 7ft ENE swell with an 8-second period and a combined energy of 1190. That's a lot of power. But the wind is still a strong 25 mph cross-shore. For a beach break like this, with that much wind, it's going to be a washing machine. That size is getting into expert-only territory, but the conditions just won't be there for anyone.

Honestly, for the paddle surfer, this is a write-off. The setup is more interesting for the kite surfers, who can handle the strong cross-shore winds. You're looking at a solid 16-day gap with no real recommendations. It's a tough run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Mon morning, min 25°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Thu morning, min 25°C on Thu morning). Mainly strong winds.

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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
1
1
0
0
0
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)
1.6
ENE
8
1.5
ENE
8
1.5
ENE
12
1.5
ENE
11
1.4
ENE
11
1.4
ENE
10
1.2
ENE
10
1.1
ENE
9
1.1
ENE
9
1
ENE
6
0.4
SSW
14
0.9
ENE
8
0.9
ENE
7
1.1
ENE
6
1.7
ENE
7
1.9
ENE
7
1.6
ENE
7
1.7
ENE
7
1.8
ENE
7
1.8
ENE
7
1.7
ENE
7
Wave Graph
Metric surfscale
Energy kJ
353
294
623
515
436
404
269
188
176
81
81
99
91
77
261
352
240
305
349
349
302
Wind (km/h)
25
ENE
30
NE
25
ENE
15
ENE
20
NE
20
ENE
20
ENE
30
NE
25
ENE
30
ENE
25
ENE
30
ENE
35
ENE
30
ENE
35
ENE
35
ENE
40
ENE
35
ENE
30
ENE
35
ENE
30
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
cross-on
cross
cross-on
High Tide
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
1:10PM0.77m
1:01AM0.23m
Low Tide
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
5:38AM-0.02m
8:50PM0.08m
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
<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
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:06
7:06
7:05
7:05
 mm
2
1
1
Temp °C
26
26
25
26
26
25
26
26
25
25
25
25
25
25
25
25
25
25
26
25
25
Feels °C
25
25
24
27
26
25
27
26
25
25
23
25
23
22
23
23
22
22
26
24
24
  • 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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