Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.2°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 28 Aug 2026:

  • Most powerful swell: Thursday 3 Sep, 2PM (local time) - 6ft (1.8m), 12s period, E swell with 909 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 1.8m 12s and forecast to arrive on Thursday (Sep 03) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 17s period and expected on Saturday (Aug 29) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Thu 3rd Sep)6ft (1.8m) 12s

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


The Lowdown

Righto folks, Rusty here. Let’s have a squiz at what’s coming our way for the next couple of weeks. I’ll be straight with ya – this is a rough stretch for paddle surfing. We’ve got a long gap of poor to zero conditions to kick things off, and even when the water starts to show some potential, it’s nothing to write home about for most of the run.

From Thursday afternoon the 27th of August right through until the 3rd of September, it’s pretty grim. The wind is howling from the ENE, often at a solid 18 to 25 mph, and it’s blowing straight cross-shore, putting a nasty lumpy chop on everything. The swell is all over the shop – weak south pulses with long periods that don’t match the wind, then short-period ENE windswell that just gets chopped up. Water temp is sitting at a normal 81°F at Sandy Beach, but you won’t care because the surf will be junk.

There’s a shift starting Thursday the 3rd of September. The swell starts building from the east with a period of 12 seconds and combined energy hitting 1125 (moderate to strong). The wind backs off a touch to a moderate 15 mph breeze from the NE, but it’s still cross-shore. This keeps the surf only marginal – lumpy and hard to love. That pattern holds right through until Sunday the 6th of September. On the 6th, the afternoon shows a glimmer with a 7 ft east-nor'-east swell, 10-second period, and combined energy of 2121 (strong). The wind drops to a moderate 12 mph from the NE, but it's still cross-shore. It’s a step up in size but still messy.

Now, the one standout that got my heart beating a little is the morning of Monday the 7th of September. We get a clean 3 ft swell from the south-south-west, but it’s running with a very long period of 15 seconds and combined energy of 1036 (moderate). The wind is a light 6 mph from the NE, still cross-shore but barely a whisper. This is a point break or reef setup kind of swell – Sandy Beach is a beach and reef mix, so that long period might make it a bit straight and tricky, but with that light wind, it’s the cleanest window in the whole forecast. Water’s about average for the time of year.

Looking further out, from the 9th of September onward it gets iffy again. Thursday the 10th of September afternoon has a small 3 ft east swell, 11-second period, with a light 6 mph cross-offshore breeze from the NNW. It’s clean and the energy sits at 572 (moderate), so for a skinny day it’s a decent little session if you’re desperate. Friday the 11th of September morning sees a 5 ft east swell with a light onshore wind from the SE – might be a bit bumpy and not worth the paddle. The rest fades back into poor, choppy cross-shore slop.

Overall, there’s nothing here that’ll get the crowds frothing. The best on offer is that Monday the 7th of September morning – small but clean with some real long-period groundswell energy. If you’re a beginner, anything over 5 ft is a handful, and here that means the 7 ft-plus days are for experienced surfers only. For the rest of the time, with the strong cross-winds and lumpy conditions, this setup looks more interesting for kite surfing than paddle surfing.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Sat afternoon, min 25°C on Thu afternoon). Mainly strong winds.

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue morning. Warm (max 26°C on Sun afternoon, min 25°C on Sun afternoon). Mainly fresh winds.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
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)
0.9
S
16
1
S
16
0.8
S
14
0.9
S
14
0.8
S
13
1.7
ENE
6
2.2
ENE
7
1.9
ENE
7
1.8
ENE
7
1.7
ENE
7
1.7
ENE
7
1.9
ENE
7
2.1
ENE
7
2
ENE
8
1.9
ENE
8
1.8
ENE
8
1.7
ENE
8
0.9
S
16
0.8
S
16
1.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
427
482
260
329
225
233
423
326
325
263
268
366
455
463
488
455
372
422
322
480
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
40
ENE
35
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
25
ENE
Wind State
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
High Tide
2:53PM0.66m
3:07AM0.39m
3:21PM0.62m
3:47AM0.44m
3:48PM0.58m
4:31AM0.49m
4:17PM0.51m
5:19AM0.53m
4:46PM0.43m
6:14AM0.56m
5:18PM0.36m
7:19AM0.59m
5:54PM0.28m
Low Tide
9:49PM0.07m
8:57AM0.06m
10:10PM0.06m
9:43AM0.10m
10:32PM0.05m
10:34AM0.14m
10:56PM0.04m
11:35AM0.19m
11:23PM0.04m
12:53PM0.23m
11:56PM0.04m
2:47PM0.24m
00:39AM0.05m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:50
6:49
6:47
6:46
6:46
6:45
 mm
1
1
Temp °C
25
25
25
25
25
25
26
25
25
26
25
25
25
25
26
26
26
26
26
25
Feels °C
22
22
22
22
22
21
23
22
21
22
23
22
22
22
25
24
25
25
25
24
  • 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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