Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.1°C
0.2° 

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 Sep 2026:

  • Most powerful swell: Tuesday 8 Sep, 5AM (local time) - 11ft (3.5m), 12s period, SSW swell with 3,080 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 3.5m 12s and forecast to arrive on Tuesday (Sep 08) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 13s period and expected on Tuesday (Sep 08) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Tue 8th Sep)11ft (3.5m) 12s

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


The Lowdown

Right then, let’s talk about Sandy Beach. Honestly, looking at the next 16 days, it’s a bit of a tough stretch. The forecast is pretty much a long run of poor surf conditions, with the first real window of anything surfable not showing up until Sunday the 6th of September, and even then it’s a tough sell.

Sunday morning the 6th kicks off with some lumpy, cross-shore chop. The wind is a stiff 19 mph from the ENE, making a mess of things. The swell is coming in at 7 ft from the ENE, with a period of 12 seconds, so there’s some decent energy behind it (combined energy of 1951), but that wind is just ruining the shape. The water is sitting at 81°, which is about average for the time of year. Sunday afternoon doesn’t get any better, with a risk of thunderstorms and the wind turning onshore.

From Monday the 7th right through to the end of the 16-day run, it’s a real desert. The scores are all zeros and ones, with constant onshore or cross-shore winds, very often in the 16 to 19 mph range. The swell sticks around for a bit, but the quality is shot. There’s a stretch from the 10th to the 12th where the swell height drops to 5 ft and below, but the wind is still a fresh 19 mph from the ENE, leaving it lumpy and choppy. You see a few readings with a cleaner descriptor, like Monday afternoon the 14th with a "cross-off" wind, but the swell is only 3 ft from the NE with a short 8-second period – just not enough to get excited about.

The real standout, if you can call it that, is the very end of the outlook. Monday morning the 21st of September. The wind drops to a light 6 mph from the E, and the swell is 4 ft from the ENE. It’s still cross-onshore, far from glassy, but it’s the lightest wind we’ve seen in the whole two weeks. The energy is low (344), so it’s not going to be powerful, but it’s the best chance of something that isn’t a complete blown-out mess. For a spot that’s fairly consistent, this is a rough run. Kite surfers might have a field day with the wind, but for a paddle surfer, this is a waiting game. The first week is a write-off.

Rusty.

Short Range Forecast

Heavy rain (total 39mm), heaviest during Sun night. Warm (max 27°C on Mon afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the SSE on Mon night, light winds from the SE by Tue night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed morning. Warm (max 27°C on Wed morning, min 25°C on Wed night). Mainly fresh winds.

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
0
0
0
0
0
2
1
1
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)
2.1
ENE
12
1.9
ENE
12
2.2
ENE
12
1.6
E
12
1.8
SSW
13
2.1
ENE
12
1.9
ENE
11
1.7
ENE
11
1.3
ENE
10
0.9
SSW
14
0.9
SSW
13
1.2
ENE
8
1.5
ENE
7
1.4
ENE
7
1.3
ENE
7
1.2
ENE
7
1.1
ENE
12
1.6
ENE
11
1.4
ENE
10
1.3
ENE
10
1.4
NE
10
Wave Graph
Metric surfscale
Energy kJ
1240
1064
1338
784
1083
1211
854
627
356
269
257
176
225
186
168
142
343
597
380
339
376
Wind (km/h)
30
ENE
20
E
15
ENE
25
E
20
ESE
35
SSE
30
S
20
S
10
SSE
10
ESE
10
E
25
ENE
30
ENE
30
NE
30
ENE
30
ENE
35
ENE
30
ENE
30
ENE
30
ENE
25
ENE
Wind State
cross
cross-on
cross
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
12:00PM0.71m
00:14AM0.26m
12:48PM0.73m
1:03AM0.31m
1:30PM0.72m
1:48AM0.38m
2:07PM0.69m
2:29AM0.44m
2:41PM0.65m
3:11AM0.50m
3:13PM0.59m
3:51AM0.55m
3:42PM0.51m
4:32AM0.57m
Low Tide
7:41PM0.09m
5:40AM0.04m
8:09PM0.07m
6:40AM0.03m
8:36PM0.05m
7:34AM0.03m
9:01PM0.04m
8:25AM0.05m
9:26PM0.04m
9:14AM0.08m
9:49PM0.03m
10:05AM0.12m
10:11PM0.04m
part cloud
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
clear
thunderstorm
rain showers
rain showers
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:15
6:15
6:16
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:42
6:40
6:39
6:38
6:37
6:37
6:36
 mm
7
14
4
4
6
2
2
1
1
1
Temp °C
26
26
25
26
27
27
27
27
27
27
27
26
26
25
25
25
25
25
25
26
25
Feels °C
26
26
24
25
27
27
27
28
30
30
29
27
25
23
23
23
23
22
24
24
22
  • 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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