Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
27.2°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 15 Sep 2026:

  • Most powerful swell: Thursday 17 Sep, 11AM (local time) - 7ft (2.1m), 10s period, ENE swell with 782 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 2.1m 10s and forecast to arrive on Thursday (Sep 17) 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 0.9m 18s period and expected on Wednesday (Sep 16) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Thu 17th Sep)7ft (2.1m) 10s

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


The Lowdown

Alright, Rusty here. Let’s talk about Sandy Beach.

To be straight with you, it’s a tough outlook. The surf is poor for a long stretch, with no real standout sessions in the forecast. The first time things even look rideable is Saturday the 26th of September. That morning we’ve got a small 3-foot swell from the SSW with a long period of 15 seconds. The wind is light out of the ESE, so it’ll be a bit cross-onshore but not too messy. The combined swell energy is moderate at 780. It’s a marginal call – a 1 out of 10. Sandy Beach is a beach and reef setup, and that long-period groundswell might make it a bit fat and straight, so don’t expect perfection.

After that, it’s back to poor conditions through the 27th and 28th. The next and only other chance comes on Tuesday the 29th of September – both morning and afternoon – with 5-foot swell from the NNE and a 9-second period. Light wind again, but still cross-onshore. Energy is moderate to strong at 805. Again, it’s just marginal. The water is about 81°, which is average for this time of year.

Honestly, with the constant cross and cross-onshore winds and lumpy seas, this stretch looks more like a kite-surfing setup than a good paddle session. If you’re keen, the 26th or 29th are your best bets, but don’t expect much.

Stay patient, mate. The blank run is real this time.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Thu night. Warm (max 27°C on Tue afternoon, min 26°C on Tue morning). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Fri morning, min 25°C on Sat night). Mainly strong winds.

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
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
1
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)
0.7
ENE
8
0.8
NE
8
0.8
SSW
19
1.3
ENE
10
0.9
SSW
18
1.6
NE
6
2.1
ENE
10
1.9
ENE
9
1
SSW
18
1
SSW
17
1
SSW
17
1
SSW
16
0.9
SSW
16
0.9
SSW
16
2
E
7
1.9
ENE
7
1.9
ENE
7
2
E
7
2
ENE
7
2
ENE
7
1.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
52
71
470
314
541
203
782
592
644
622
580
539
382
387
400
362
373
447
403
414
449
Wind (km/h)
20
ENE
25
NE
30
ENE
35
NE
30
NE
30
NE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
35
ENE
40
ENE
40
ENE
40
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
High Tide
5:04PM0.30m
6:56AM0.56m
5:30PM0.25m
8:04AM0.54m
6:18PM0.21m
9:21AM0.54m
9:37PM0.19m
10:30AM0.55m
11:10PM0.22m
11:25AM0.57m
11:56PM0.25m
12:07PM0.59m
00:31AM0.29m
Low Tide
1:10PM0.23m
11:24PM0.09m
2:59PM0.23m
11:56PM0.11m
5:49PM0.21m
00:44AM0.14m
6:28PM0.17m
2:11AM0.15m
6:51PM0.15m
3:49AM0.15m
7:13PM0.13m
5:00AM0.13m
7:32PM0.11m
clear
clear
clear
clear
clear
part cloud
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:18
6:18
6:18
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:32
6:31
6:30
6:30
6:30
6:29
6:28
 mm
2
8
Temp °C
26
27
26
26
26
26
26
26
26
27
27
26
26
26
26
26
26
26
26
26
26
Feels °C
27
27
26
26
25
25
26
25
26
25
24
24
25
23
24
23
23
24
24
23
24
  • 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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