Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 25 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 25 Jul 2026:

  • Best quality surf: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 12s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 12s period, ENE swell with 2,380 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 12s period with ENE swell.

Best Forecast Surf Conditions for Sandy Beach this week:

The surf forecast for Sandy Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 28) at 11PM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.7m and 14s. Another secondary swell of 1.4m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Sandy Beach in the next 16 days are 3.0m 12s and forecast to arrive on Tuesday (Jul 28) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 16s period and expected on Friday (Jul 31) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 28th Jul)10ft (3.0m) 12s
Best Surf11PM (Tue 28th Jul)10ft (3.0m) 12s
Most Powerful11PM (Tue 28th Jul)10ft (3.0m) 12s

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


The Lowdown

Right, let’s have a look at what we’ve got for Sandy Beach over this next stretch. This is a beach and reef setup that’s fairly consistent, but the wind and conditions are going to throw some real junk at us for most of the run.

The water temp here is 80°F, which is pretty much standard for this time of year, nothin’ to write home about.

The first few days are a write-off. Saturday the 25th and Sunday the 26th are all cross-shore wind with lumpy, messy chop, no real surf to speak of – just a whole lot of noise.

Monday the 27th and Tuesday the 28th stay cross-shore windy, but the swell starts to build. Tuesday afternoon sees the wind shift to a cross-off, giving us a bit more shape. Swell is coming from the east, 8ft, but that merged energy is pumping (2267), so it’s got some push. Even then, it’s only marginal. It’s not until Wednesday the 29th morning that we finally get a window. This is the standout.

Wednesday morning at Sandy Beach (Sandys-Beach) is the one to circle. Glassy conditions, 3 mph southerly wind, and a clean 8ft of groundswell from the east-northeast, with a period of 10 seconds. That’s solid, well-shaped energy (1580) that’ll hold up. It’s *excellent for experienced surfers* – size is up, but the glass makes it a proper session. The wind stays offshore through the early part, so expect some lined-up, hollow walls. This is the pick of the entire 16-day run.

After that, Thursday the 30th through Saturday the 1st of August goes right back to messy cross-shore and onshore junk, with lumpy chop and strong breezes. The swell sticks around but it’s blown out. Not worth paddling out in that mess.

Then we hit a dry spell from Sunday the 2nd through to the 9th of August. Most of those days are poor to marginal, with cross-shore and cross-onshore winds, and the energy drops off a cliff – down to 261 by the 6th of August. The swell is weak, short period, and choppy. Not a single decent window in there.

The last session we see is Sunday the 9th of August morning – but that’s a 2ft, 17-second SSW groundswell. That’s a long-period, clean-ish offering, but at that size with light cross-onshore, it’s barely a ripple. Not worth gettin’ wet for.

So overall, the whole 16 days has one real highlight: Wednesday the 29th morning. Everything else is either blown out, tiny, or plain ugly. If you don’t make that Wednesday glass-off, you’re waitin’ for a long, quiet stretch.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Tue night. Warm (max 27°C on Wed afternoon, min 25°C on Tue morning). Winds increasing (calm on Wed morning, fresh winds from the ENE by Thu night).

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
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
0
0
1
1
1
1
1
2
!
4
0
1
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
ENE
8
2.1
ENE
8
0.9
SSW
18
0.9
SSW
16
1.1
E
14
1.3
E
14
1.3
E
14
1.4
E
13
2
E
13
2.1
E
13
2.4
E
13
3
ENE
12
2.5
ENE
10
2
ENE
10
1.7
ENE
8
1.6
ENE
8
1.7
ENE
8
1.8
ENE
8
2
E
8
2.3
ENE
8
3
E
8
Wave Graph
Metric surfscale
Energy kJ
452
578
547
469
499
697
622
670
1349
1475
1850
2139
1385
688
404
324
318
375
471
561
1029
Wind (km/h)
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
NE
30
NE
25
NE
30
NE
30
NNE
20
N
5
S
15
SSE
15
E
20
E
35
ENE
30
ENE
40
ENE
40
ENE
45
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-off
glassy
on
cross-on
cross-on
cross
cross-on
cross
cross
cross
High Tide
1:20PM0.64m
00:50AM0.19m
1:55PM0.66m
1:32AM0.20m
2:28PM0.68m
2:09AM0.22m
2:58PM0.69m
2:46AM0.24m
3:28PM0.69m
3:26AM0.26m
3:57PM0.68m
4:08AM0.30m
4:25PM0.65m
4:55AM0.33m
Low Tide
9:14PM0.12m
6:24AM0.02m
9:38PM0.11m
7:06AM0.01m
10:01PM0.09m
7:44AM-0.00m
10:25PM0.09m
8:21AM0.00m
10:49PM0.08m
8:58AM0.02m
11:13PM0.07m
9:38AM0.05m
11:37PM0.06m
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:01
6:01
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:12
7:12
7:12
7:10
7:10
7:09
7:09
 mm
1
1
3
Temp °C
25
25
25
25
25
25
25
25
25
25
26
25
26
27
26
26
26
26
25
25
25
Feels °C
22
21
21
21
21
22
23
23
23
25
25
24
30
29
28
26
25
24
22
21
22
  • 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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