Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.2° 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 12 Jul 2026:

  • Most powerful swell: Monday 13 Jul, 5AM (local time) - 7ft (2.2m), 7s period, ENE swell with 498 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 2.2m 7s and forecast to arrive on Monday (Jul 13) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 17s period and expected on Sunday (Jul 12) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Mon 13th Jul)7ft (2.2m) 7s

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


Alright, this is Rusty, and I’m gonna level with you about Sandy Beach. This 16-day stretch is a real bummer. We’re staring down a long run of messy, cross-shore winds that are going to ruin just about everything. The first week and a half is a total loss, with the wind hammering from the ENE and the surf looking like a washing machine. The wave energy is only moderate, peaking around 697 (moderate wave energy) on the 13th, but it’s all wind-chop.

Around the 21st of July, things start to change. A long-period groundswell from the SSW starts to show up. The period stretches past 14 seconds and well into the 20s, which means real power. The combined energy jumps into the strong range, hitting 859 and 946 on the 23rd and 24th. But here’s the rub – the wind is still cross-shore from the ENE, keeping it lumpy. The water temp is about normal for this time of year, nothing crazy.

If you’re desperate for a paddle, the morning of the 21st of July is your best shot. It’s the only time that’s not called “poor,” just “marginal.” You’ve got a 0.7ft SSW swell with a 14-second period, so it’s proper groundswell. The wind is a moderate breeze from the ENE, so the cross-chop will be less nasty. It’s tiny, but it’s the cleanest window in the whole forecast. That long period on a beach break can make the waves a bit straight and tricky, but it’s all we’ve got. Don’t expect a crowd because the swell is inconsistent, but with conditions this average, it’s not a hotspot.

The rest of the second week is just more of the same bumpy, cross-shore grind. It’s one of those times when the exposed beach in a steady trade wind pattern just doesn’t give you anything. It’s not a spot that stays flat forever, but this pattern is locked in.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Sat night, min 24°C on Sat night). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Tue night. Warm (max 25°C on Wed morning, min 24°C on Tue night). Winds increasing (light winds from the E on Tue night, fresh winds from the ENE by Fri afternoon).

Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Sat
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
ENE
7
1.9
ENE
7
1.9
ENE
8
1.8
ENE
8
1.8
ENE
8
1.7
ENE
8
1.5
ENE
7
1.5
ENE
8
1.4
NE
8
1.1
NE
7
1
ENE
7
0.9
ENE
7
0.8
SSW
16
0.6
SSW
16
0.6
SSW
17
1.2
ENE
6
1.1
NE
7
0.6
SSW
16
1.3
ENE
6
1.1
ENE
6
1.3
ENE
7
Wave Graph
Metric surfscale
Energy kJ
379
397
419
393
383
322
231
257
210
140
114
77
314
175
195
103
102
196
125
92
160
Wind (km/h)
35
ENE
40
ENE
40
ENE
40
ENE
35
ENE
35
NE
30
ENE
25
ENE
30
NE
20
E
20
ENE
25
ENE
15
ENE
25
ENE
25
ENE
30
ENE
35
ENE
35
ENE
30
ENE
35
ENE
30
NE
Wind State
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
High Tide
00:55AM0.18m
2:10PM0.81m
1:53AM0.19m
2:55PM0.82m
2:47AM0.21m
3:38PM0.81m
3:40AM0.23m
4:19PM0.78m
4:35AM0.27m
4:58PM0.72m
5:33AM0.31m
5:35PM0.64m
6:37AM0.35m
6:10PM0.55m
Low Tide
9:12PM0.08m
6:39AM-0.08m
9:53PM0.05m
7:31AM-0.09m
10:32PM0.03m
8:22AM-0.08m
11:09PM0.02m
9:12AM-0.05m
11:45PM0.02m
10:02AM0.01m
00:20AM0.02m
10:55AM0.08m
00:53AM0.03m
11:55AM0.16m
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
rain showers
rain showers
clear
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:56
5:56
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:15
7:15
7:15
 mm
4
1
1
Temp °C
25
25
25
24
24
24
24
24
25
24
25
25
25
25
25
25
25
25
25
25
25
Feels °C
22
22
21
20
20
21
21
22
23
22
25
24
25
24
24
23
23
22
23
23
23
  • 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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