Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.0° 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 10 Aug 2026:

  • Most powerful swell: Sunday 16 Aug, 8PM (local time) - 8ft (2.4m), 11s period, ENE swell with 1,292 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 2.4m 11s and forecast to arrive on Sunday (Aug 16) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 12s period and expected on Thursday (Aug 13) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sun 16th Aug)8ft (2.4m) 11s

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


The Lowdown

Alright, grab your board, but maybe leave the wetsuit at home. We’ve got a tricky stretch ahead for Sandy Beach. The water’s sittin’ at a warm 81° with nothing weird going on temperature-wise—about average for this time of year. But the waves? Man, they’re gonna be a battle.

To be straight with you, the next week and a half is mostly a right-off. We’ve got a lot of wind and chop messing up what little swell is pushing in. The energy in the water is moderate, around 469 units Monday morning, but it’s a lumpy, cross-shore mess. We’ll see a few pulses of south swell midweek, but the trade winds are just gonna keep it ragged. By Thursday the 14th, winds pick up to 25 mph out of the NE, and it’s just messy cross-chop. Not worth your time.

There is a tiny window on Saturday the 15th in the afternoon. The winds go a bit cross-off, and the ocean cleans up a touch. Swell jumps to 7ft from the ENE, and the energy gets strong at 1105. It’s still a bit on the bigger side, so if you’re not solid on your board, maybe give it a miss. But for the crew that knows the break, it could be the pick of a poor bunch.

Then things get real. By Sunday the 16th, a bigger pulse of swell hits 8ft, but it’s onshore, near gale-force winds, and blown to bits. That’s a hard no. Monday the 17th has a brief moment with light SE winds and clean conditions, but the energy is maxing out at 1825, and it’s about 8ft from the ENE. That’s too much juice for most, and that size is strictly for the experts. It’s all beach and reef, so it could get heavy fast.

The second week just fades out. Swell drops, winds stay cross and messy. We see small pulses, but nothing that will have you calling in sick for. A bit of long-period SSW energy shows up on the 20th, but it’s small and won’t do much. The last few days are just full of onshore slop. Honestly, this whole stretch looks better for kite surfing than paddle surfing.

So, there you have it. If you’re desperate, keep an eye on the 15th and the 17th, but don’t hold your breath. The good news? This spot is fairly consistent, so it shouldn’t stay this quiet for too long. Forecasts can change. Hang tight.

Rusty

Short Range Forecast

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

Days 4-6 Weather Summary

Heavy rain (total 28mm), heaviest during Sat night. Warm (max 26°C on Thu morning, min 25°C on Thu night). Winds increasing (fresh winds from the NE on Thu morning, gales from the NNW by Sat night).

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
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
0
0
1
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
1.3
ENE
8
0.6
SSW
15
1.3
ENE
7
0.8
SSW
14
0.6
S
20
0.9
S
18
0.9
S
18
1
S
16
1
S
16
1.2
S
15
1.1
S
15
1
S
14
1.9
ENE
7
2.3
ENE
7
2.1
ENE
8
2.2
ENE
9
2.4
ENE
9
2.4
ENE
10
2.4
ENE
10
2.3
ENE
11
Wave Graph
Metric surfscale
Energy kJ
210
176
186
181
269
276
509
498
520
501
662
537
416
375
547
588
831
940
1156
1198
1146
Wind (km/h)
30
NE
30
NE
25
ENE
25
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
NE
35
ENE
40
ENE
40
NE
35
NE
35
NE
40
NE
40
NNE
70
NNW
60
S
40
SSE
25
SSE
Wind State
cross
cross
cross
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-off
off
cross-on
cross-on
cross-on
High Tide
1:55PM0.79m
1:52AM0.27m
2:36PM0.79m
2:40AM0.31m
3:14PM0.76m
3:27AM0.36m
3:49PM0.71m
4:15AM0.41m
4:22PM0.64m
5:04AM0.45m
4:53PM0.55m
5:55AM0.48m
5:21PM0.47m
Low Tide
9:21PM0.06m
7:31AM-0.04m
9:52PM0.05m
8:22AM-0.02m
10:21PM0.04m
9:11AM0.01m
10:50PM0.04m
10:01AM0.07m
11:17PM0.04m
10:54AM0.13m
11:44PM0.05m
11:53AM0.20m
00:11AM0.05m
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
heavy rain
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:07
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:02
7:02
7:01
7:00
7:00
7:00
 mm
28
5
6
2
Temp °C
26
26
26
26
26
25
25
25
25
26
26
25
25
26
25
26
26
26
26
26
26
Feels °C
25
24
26
25
25
23
24
22
22
24
23
22
22
23
22
23
23
25
24
22
25
  • 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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