Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.5° 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 19 Jul 2026:

  • Most powerful swell: Saturday 25 Jul, 8PM (local time) - 3.5ft (1.0m), 18s period, SSW swell with 662 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 1.0m 18s and forecast to arrive on Saturday (Jul 25) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 13s period and expected on Saturday (Jul 18) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sat 25th Jul)3.5ft (1.0m) 18s

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


The Lowdown

Alright, Rusty here, giving you the rundown for Sandy Beach. To be straight up, it's a pretty grim outlook for the next 16 days. We're looking at a long stretch of time where you'll be better off doing anything else.

From the get-go, starting Saturday, July 18th, and running all the way through to Thursday, July 30th, it's pretty much a total loss. There's wave energy, sure, but that constant cross-shore wind out of the ENE at 25 mph and stronger is just shredding the surface. It's creating a lumpy, messy cross-chop that makes any kind of ride impossible. The swell is mostly short-period windswell, so it lacks any real punch or shape. It's frustrating because the ocean has some size, but the wind completely ruins it.

Right at the tail end of the period, on Sunday, July 26th, we get a tiny glimmer. A long-period groundswell from the East starts to push in with a lot of energy. The wind, while still cross-shore, drops to a more manageable 16 mph. It's still not clean, but it's the only time in the whole 16 days where the conditions are even described as "marginal" rather than "poor." The water temp is about 79°F, which is normal for this time of year.

Honestly, this is a tough one. There's a massive gap of over a week where you can't even think about it. If you absolutely have to get wet, keep an eye on that Sunday the 26th, but don't expect much. The wind pattern is just too dominant here for the rest of the window.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue morning. Warm (max 26°C on Sat afternoon, min 24°C on Sat night). Mainly strong winds.

Days 5-7 Weather Summary

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

Sat
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
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
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)
1.9
ENE
8
1.9
ENE
8
1.6
ENE
8
1.4
ENE
8
1.4
ENE
6
1.4
ENE
8
0.8
S
16
0.9
S
15
0.9
S
14
0.9
S
14
0.9
S
13
1.2
ENE
7
0.6
SSW
23
1.9
ENE
7
0.7
SSW
20
0.7
SSW
20
2.4
ENE
7
1.9
ENE
7
2.2
ENE
7
2.1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
385
416
302
250
160
226
321
339
329
307
277
138
426
363
412
395
563
376
512
481
Wind (km/h)
40
ENE
35
ENE
35
ENE
30
NE
30
ENE
30
ENE
35
ENE
25
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
35
ENE
40
ENE
35
ENE
35
ENE
Wind State
cross
cross
cross
cross
cross-on
cross
cross
cross
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
High Tide
6:10PM0.55m
7:46AM0.40m
6:42PM0.45m
8:59AM0.45m
7:13PM0.37m
10:08AM0.51m
7:46PM0.29m
11:08AM0.55m
8:50PM0.23m
11:59AM0.59m
10:38PM0.19m
12:42PM0.62m
11:56PM0.19m
Low Tide
1:26AM0.03m
1:10PM0.23m
1:58AM0.03m
2:57PM0.28m
2:33AM0.04m
5:25PM0.28m
3:12AM0.05m
7:38PM0.23m
3:57AM0.05m
8:24PM0.18m
8:50PM0.15m
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
6:00
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:14
7:14
7:14
7:13
7:13
7:13
 mm
1
Temp °C
26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Feels °C
22
22
22
22
23
23
23
23
24
23
23
22
22
22
21
21
22
21
21
21
  • 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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