Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.7° C
0.4° 

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 1 Aug 2026:

  • Most powerful swell: Saturday 1 Aug, 11AM (local time) - 10ft (3.0m), 8s period, E swell with 1,234 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 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Friday (Jul 31) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Sat 1st Aug)10ft (3.0m) 8s

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


The Lowdown

Right, grab a coffee, ‘cause it’s a quiet one for Sandy Beach. We’re looking at a solid 16-day window, but honestly, there’s nothing to rush out for. The first proper surf shows up on Friday afternoon, July 31st, but it’s a mess. The wind is howling from the ENE at 25 mph, ripping straight across the face, making for a lumpy, cross-chop nightmare. The swell is a hefty 8 ft from the east, but with a short, weak 8-second period, it’s all churn and no shape. The water’s a warm 80°F, which is about average for this time of year, but that’s the only nice thing I can say.

We’ve got a long stretch of nothing. The whole of the first week is a write-off – that same strong cross-shore wind keeps blowing right through to August 5th. The wave energy is moderate (1172), but it’s all wind-slop, not surf. The swell drops a bit but the wind stays on it, making it messy for days.

The first sign of something different comes on Tuesday, August 4th. The period jumps to 11 seconds, and the swell eases to 5 ft from the ENE. It’s still a cross-shore wind, but a lighter 12 mph. The forecast calls it marginal, and I’d agree. The wave energy is moderate (576), but with that cross-shore breeze, it’s still going to be choppy. Not a standout, just a slight improvement.

The one flicker of hope appears on Sunday, August 9th. The swell direction flips to a long-period SSW groundswell of 18 seconds, but the height is a tiny 2 ft. The wind is still a cross-shore fresh breeze from the NE, so the wave energy is moderate (505), but it’s a long-period swell hitting a beach break. Long-period swells on a beach like this tend to break too straight, and with the wind all over it, it’s not going to be a day for the beginners. The same small, long-period SSW swell hangs around through Monday, August 10th and Tuesday, August 11th, but the wind doesn’t let up, and the wave heights are just too small to get excited about.

The run continues through the second week. More cross-shore wind, more short-period ENE swell, but the forecasts are all "poor surf conditions". The wave energy stays moderate, peaking at 725 on the morning of Wednesday, August 12th, but it’s still 5 ft of messy, cross-shore junk. The wind is relentless.

The only real change is a few more long-period S swells sneaking in around August 13th and 14th, but again, they’re small (3 ft) and the wind is a strong cross-shore. The wave energy is moderate (570), but it’s not a surfer’s wave.

The whole 16-day window is a total blank. There isn’t a single day where the wind cleans up and the swell has any quality. This is a full-on, flat and windy spell for Sandy Beach. The setup is more interesting for a kite surfer than a paddle surfer – the strong, consistent cross-shore wind and the lumpy wave energy is right up their alley. For us, it’s a time to rest the arms and watch the forecast. Things can change, but right now, it’s a long, quiet stretch. Stay patient.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

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

Fri
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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
1
1
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)
2.5
E
8
3
E
8
3
E
8
2.5
ENE
8
2.5
ENE
8
2.4
ENE
8
2.2
ENE
8
2.1
ENE
8
1.7
ENE
8
1.5
ENE
8
1.6
ENE
12
1.5
ENE
11
1.4
ENE
11
1.3
ENE
10
1.2
ENE
9
1.1
ENE
9
1.1
ENE
8
1.1
ENE
8
1.2
ENE
7
1.1
E
6
Wave Graph
Metric surfscale
Energy kJ
765
1029
1234
871
956
801
662
592
394
321
713
515
415
314
232
184
176
163
147
94
Wind (km/h)
40
ENE
45
ENE
45
ENE
40
ENE
40
ENE
35
ENE
40
ENE
35
ENE
25
ENE
30
NE
25
ENE
20
ENE
25
NE
15
ENE
15
ENE
25
ENE
20
ENE
30
ENE
30
ENE
25
ENE
Wind State
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
High Tide
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
10:22AM0.61m
8:39PM0.22m
Low Tide
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
6:43PM0.21m
3:25AM0.02m
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:08
7:08
7:07
7:07
7:07
7:06
 mm
Temp °C
25
25
25
25
25
25
25
25
25
25
25
25
25
26
26
26
26
26
26
25
Feels °C
21
20
20
20
21
21
21
22
24
23
23
25
25
28
27
27
27
26
25
24
  • 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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