Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 30 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 30 Jul 2026:

  • Most powerful swell: Saturday 1 Aug, 8AM (local time) - 10ft (3.0m), 8s period, E swell with 1,142 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 8AM. Winds are predicted to be cross-onshore 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 5PM.

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

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


The Lowdown

Right, let’s have a look at what’s cooking across the next 16 days for Sandy Beach. Honestly, I’d usually be buzzing to talk about this place, but looking at the charts, it’s a tough one. The whole stretch is a write-off for good, clean waves.

We start off Thursday, July 30th, and straight away it’s a no-go. The wind is ripping from the ENE at 16 mph, cross-on, with a short-period 5 ft swell from the same direction. The water’s sitting at 80°, which is about average for this time of year, but the surf is just choppy and messy. The combined energy is moderate (399), but it’s all windswell with no shape. That afternoon, the swell drops to 2 ft but the period jumps to 18 seconds – that’s a very long period groundswell. But with 19 mph ENE winds, it’s just lumpy and poor. Zero chance of a decent wave.

Friday, July 31st, through the weekend and into next week, it’s the same story on repeat. The wind stays locked in from the ENE, blowing 22 to 28 mph. The swell builds from 6 ft up to 10 ft by Saturday afternoon, but it’s all short-period 8 seconds and blowing straight across or onshore. The combined energy spikes into the strong range (up to 1439 on Saturday), but that’s just raw power with no quality. This is a beach-and-reef setup, and with that much wind and junk, it’s honestly more interesting for kite surfing than paddle surfing. The waves will be blown out, cross-chop mess.

We get a bit of a break in the wind on Monday, August 3rd, down to 16 mph, but it’s still cross-shore, and the swell is 5 ft to 6 ft of short-period mush. Not worth paddling out for.

On Tuesday, August 4th, the period lifts to 11 seconds on a 5 ft ENE swell, and the wind drops to 12 mph. The wave comment is “marginal” – it’s a sniff of something, but still cross-shore chop. The energy is moderate (688). Definitely not a standout.

From Wednesday, August 5th, through to the end of the forecast, the swell gets smaller, dropping to 1 ft to 5 ft, and the wind stays mostly from the ENE, rarely letting up. The few moments with light winds, like Thursday, August 13th afternoon with 6 mph ESE, only have a tiny 2 ft swell. There’s nothing here that will get your heart racing.

So, to be straight with you – there are no good surf options in this 16-day window for Sandy Beach. It’s a long, blank run. The wind is just relentless from the east, and the swell direction is all wrong for this spot. The break prefers an ESE swell, and we’re getting ENE to E windswell or long-period groundswell from the south that gets ruined by the wind. It’s one of those stretches where the forecast can change, but for now, leave the board at home, or if you’re desperate, bring a kite.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu morning, min 25°C on Thu night). Winds increasing (light winds from the ENE on Thu afternoon, strong winds from the ENE by Fri night).

Days 4-6 Weather Summary

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

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
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
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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)
1.4
ENE
8
0.6
SSW
18
1.4
ENE
7
1.7
E
8
2
ENE
8
2.5
E
8
2.5
E
8
3
ENE
8
3
ENE
8
2.5
ENE
8
2.3
ENE
8
2.2
ENE
8
1.7
ENE
8
1.6
ENE
8
1.5
ENE
8
1.6
ENE
11
1.5
ENE
11
1.3
ENE
10
1.2
ENE
9
1.1
ENE
9
0.7
ENE
8
Wave Graph
Metric surfscale
Energy kJ
220
207
220
329
437
946
994
1081
1026
844
740
646
422
347
329
637
515
325
222
184
61
Wind (km/h)
25
ENE
30
ENE
25
ENE
40
ENE
40
ENE
45
ENE
45
ENE
40
ENE
40
ENE
40
ENE
40
ENE
30
ENE
25
NE
30
NE
25
ENE
20
NE
25
NE
20
ENE
20
ENE
20
ENE
20
ENE
Wind State
cross-on
cross-on
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
High Tide
3:57PM0.68m
4:08AM0.30m
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
Low Tide
8:58AM0.02m
11:13PM0.07m
9:38AM0.05m
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
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:03
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:09
7:08
7:08
7:07
7:07
7:07
 mm
1
Temp °C
27
27
26
26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
26
26
26
Feels °C
26
28
26
23
21
21
20
20
21
21
21
21
24
23
22
25
24
25
27
27
27
  • Map Icons:
  • Break
  • 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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