Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 26 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 26 Aug 2026:

  • Most powerful swell: Thursday 27 Aug, 11AM (local time) - 3.5ft (1.1m), 17s period, S swell with 716 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 1.1m 17s and forecast to arrive on Thursday (Aug 27) at 11AM. 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 Powerful11AM (Thu 27th Aug)3.5ft (1.1m) 17s

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


The Lowdown

Alright folks, Rusty here. Let’s be straight with you: the outlook for the next 16 days is a tough one. We’re looking at a long stretch where the conditions just won’t line up for a decent paddle. There’s a gap of no real surf recommendations from now through to the end of the 16-day period.

The main issue is the wind. It’s almost constantly blowing from the ENE at 15 to 25 mph, which is putting a nasty cross-shore or cross-onshore chop on everything. The waves that do show up are getting mangled by that breeze, leaving us with lumpy, messy, poor surf conditions across the board.

Kicking off on Wednesday, August 26, at Sandy Beach, we’ve got a tiny 2 ft swell from the SSW, but with a 22 mph cross-shore wind, it's blowing out. The water’s sitting at a warm 81°, which is about average for this time of year. The combined energy is moderate at 578, but it doesn’t matter with that wind.

Things don’t improve as we head into Thursday and Friday. The swell bumps up a bit, but the wind stays strong. The real problem shows up on Saturday, August 29, when the swell jumps to 6 ft from the ENE, but it’s short-period windswell at just 7 seconds. The wind is howling at 25 mph, making it a messy, cross-shore disaster. Even when the swell gets a bit of period later on, like the 11-second pulse on September 5, the wind is still cross or cross-on, and the conditions are described as "poor surf conditions" every single time. There’s one pulse on September 7 that has strong energy (1174), but again, it’s ruined by a fresh cross-onshore wind.

For a beach and reef setup like Sandy Beach, with this constant wind and sloppy, short-period swell, it looks more interesting for kite surfing than paddle surfing. The wind state is described as "fresh cross-shore with lumpy cross-chop" or "choppy" for the entire forecast. Honestly, there’s no standout day here. The whole 16-day window is a washout for surf.

Rusty

Short Range Forecast

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

Days 4-6 Weather Summary

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

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
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
0
1
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)
0.7
SSW
14
0.7
S
18
0.7
S
19
1.1
S
17
0.9
S
16
1
S
16
0.8
S
14
0.9
S
14
1.8
ENE
7
1.8
ENE
7
1.9
ENE
7
1.7
ENE
7
1.7
ENE
7
1.5
ENE
7
1.5
ENE
7
1.5
ENE
7
1.7
ENE
8
1.8
ENE
8
1.6
ENE
9
1.6
ENE
8
1.7
ENE
8
Wave Graph
Metric surfscale
Energy kJ
215
307
351
716
427
482
260
329
290
268
373
265
285
217
199
218
348
466
377
368
381
Wind (km/h)
35
ENE
30
ENE
35
ENE
35
ENE
30
NE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
NE
20
ENE
25
ENE
30
ENE
25
ENE
Wind State
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross
cross
cross
cross-on
cross
cross
High Tide
2:25PM0.67m
2:30AM0.34m
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
Low Tide
9:29PM0.09m
8:15AM0.04m
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
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
rain showers
part cloud
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
6:49
6:47
6:46
6:46
 mm
1
3
Temp °C
26
25
25
25
25
25
25
25
25
25
25
25
26
26
25
26
26
26
26
26
26
Feels °C
23
21
22
22
22
22
22
22
22
21
21
22
23
23
23
24
25
26
26
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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