Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.6° 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 24 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 2AM (local time) - 10ft (3.0m), 12s period, ENE swell with cross-shore winds.
  • Most powerful swell: Wednesday 29 Jul, 8AM (local time) - 11ft (3.5m), 11s period, ENE swell with 3,131 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 2AM (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 Wednesday (Jul 29) at 2AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.6m and 14s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Sandy Beach in the next 16 days are 3.5m 11s and forecast to arrive on Wednesday (Jul 29) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 18s period and expected on Thursday (Jul 30) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 29th Jul)10ft (3.0m) 12s
Best Surf 2AM (Wed 29th Jul)10ft (3.0m) 12s
Most Powerful 8AM (Wed 29th Jul)11ft (3.5m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s take a good hard look at what’s coming up for Sandy Beach.

The story here is a tough one. We’re staring down a long, ugly stretch of onshore and cross-shore winds that are going to wreck just about everything. The opening days are a write-off – Friday the 24th through to the end of that first week are all about strong, messy, cross-shore winds whipping up a lumpy cross-chop. The swell is pretty weak to moderate at first, with combined energy readings around 1064 to 1101, and it’s coming from the ENE with a short, choppy period of 7 to 8 seconds. Don’t even bother. The water temp is about average for this time of year, so at least that’s not weird.

We finally get a little glimmer of hope on Tuesday the 29th of July. The morning shows a solid 12 ft of swell from the ENE, with a period of 11 seconds and a combined energy reading of 2727 – that’s a lot of power. The wind is a moderate cross-shore, and the forecast says the wind and tide are favorable, but here’s the kicker: that 12 ft is just too big for this break. This is a beach and reef setup, and that kind of size is for experts only. It’s going to be a washing machine unless you’re really, really good. The afternoon turns to onshore and gets messy again.

After that blast, it’s back to the grind. From the 30th of July all the way through the 8th of August, we’re stuck in a pattern of cross-onshore and cross-shore winds, with the swell dropping back to 3 ft to 6 ft and periods of 10 to 16 seconds. The combined energy drops right off, mostly under 1000. The 10th of August shows a bit of energy from the NE at 5 ft, but the wind is still cross-onshore, so it’s only marginal at best. The long-period groundswells that show up on the 2nd and 3rd of August (16 seconds) are technically classy, but with the wind howling cross-shore, they’ll be a lumpy, choppy mess.

Forget the first week. The only real standout in the whole 16-day window is that Tuesday the 29th of July morning session. It’s big, it’s powerful, and it’s the only time the wind is not totally ruining the works. But you’ve got to be an expert. The rest of the run is a long, frustrating gap of poor conditions. If you’re looking for a clean, fun wave, you’re not going to find it here.

Rusty, signing off.

Short Range Forecast

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

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Wed morning. Warm (max 26°C on Tue afternoon, min 24°C on Sun night). Mainly fresh winds.

Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
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
1
1
1
1
0
1
1
2
!
!
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
18
2.2
ENE
7
2
ENE
7
2.2
ENE
7
1.8
ENE
8
0.9
SSW
18
2.1
ENE
8
1.9
ENE
8
1
E
14
1.1
E
14
1.2
E
14
1.2
E
13
1.7
E
13
1.8
E
12
1.9
E
12
3
ENE
12
3.5
ENE
11
2.5
ENE
10
2
ENE
8
Wave Graph
Metric surfscale
Energy kJ
464
499
428
512
392
572
547
469
407
472
515
485
946
957
1118
2281
2523
1170
541
Wind (km/h)
35
ENE
45
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
NE
25
NE
30
NE
35
NNE
30
NE
20
NE
25
SE
10
E
Wind State
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
on
cross-on
High Tide
10:38PM0.19m
12:42PM0.62m
11:56PM0.19m
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
Low Tide
8:24PM0.18m
8:50PM0.15m
5:38AM0.03m
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
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:01
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:13
7:13
7:12
7:12
7:12
7:10
7:10
 mm
1
1
5
4
7
Temp °C
25
25
25
25
25
25
25
25
25
25
25
25
25
25
26
25
26
26
26
Feels °C
22
21
21
21
22
22
22
22
22
22
23
23
22
25
25
24
28
26
26
  • 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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