Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.9° 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 6 Aug 2026:

  • Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.3m), 16s period, S swell with 890 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 1.3m 16s and forecast to arrive on Thursday (Aug 13) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 14s period and expected on Thursday (Aug 06) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Thu 13th Aug)4.5ft (1.3m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s cooking for the next couple of weeks.

Honestly, it’s a tough stretch ahead. Looking at the whole 16-day window, there’s really only one session that’s worth getting excited about, and it’s a long way off. The rest of the time, the wind is just relentless, and the surf is getting chewed up.

For the first couple of weeks, from Thursday, August 6th right through to Thursday, August 20th, it’s a real write-off. The wind is hammering from the ENE almost constantly, a cross or cross-on shore that’s just destroying any chance of a clean wave. The swell is there, but it’s all wind-affected and messy. The combined energy is often moderate to strong (values like 205, 332, 568, 705, 984), but it’s all for nothing with that wind. There’s a period of strong ENE windswell from the 8th to the 10th, with heights around 5 ft to 7 ft, and again from the 15th to the 19th, with heights pushing 7 ft to 8 ft – but it’s all blown out. For a beach and reef setup like Sandy Beach, that’s really more of a kite-surfing scenario than a paddle session. Don’t bother paddling out.

Now, the one glimmer of hope. It’s a long way off, but on Friday, August 21st, the light finally goes green. The morning session shows a light breeze from the north at 6 mph, blowing cross-offshore. That’s the cleanest wind we’ll see all forecast. The swell is a 4 ft from the NE with a period of 9 seconds, and the combined energy is a solid 458 – moderate, but clean. The forecast is calling for “expect good surf conditions”. This is the standout. It’s the only time the wind is right, and the size is a fun, manageable 4 ft for Sandy Beach. Keep your fingers crossed, because after weeks of trash, this could be a beauty.

Remember, near-term calls are more reliable, so this late-August call is promising but less certain. Get your board ready for that Friday morning.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Fri morning, min 24°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

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

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
ENE
9
0.4
SSW
14
0.4
SSW
14
1
ENE
8
0.4
SSW
14
0.4
SSW
14
1.4
ENE
6
1.6
ENE
6
1.5
ENE
7
1.7
ENE
7
1.7
ENE
7
2
ENE
7
1.7
ENE
7
1.5
ENE
7
1.4
ENE
7
1.5
ENE
7
0.6
SSW
14
0.8
SSW
14
0.8
S
20
Wave Graph
Metric surfscale
Energy kJ
86
81
80
107
77
73
148
201
187
265
294
415
294
231
199
215
165
269
485
Wind (km/h)
20
ENE
25
ENE
30
NE
30
ENE
25
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
20
ENE
25
ENE
25
ENE
Wind State
cross
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
High Tide
10:22AM0.61m
8:39PM0.22m
11:25AM0.67m
10:36PM0.19m
12:21PM0.73m
00:00AM0.20m
1:10PM0.77m
1:01AM0.23m
1:55PM0.79m
1:52AM0.27m
2:36PM0.79m
2:40AM0.31m
Low Tide
2:24AM0.02m
6:43PM0.21m
3:25AM0.02m
7:38PM0.16m
4:32AM0.00m
8:16PM0.11m
5:38AM-0.02m
8:50PM0.08m
6:37AM-0.03m
9:21PM0.06m
7:31AM-0.04m
9:52PM0.05m
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:06
7:06
7:05
7:05
7:04
7:02
 mm
Temp °C
25
25
25
25
26
26
25
26
26
25
25
25
25
25
26
25
26
26
26
Feels °C
25
26
24
24
25
24
24
24
24
22
23
23
23
24
25
24
27
26
26
  • 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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