Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 am 05 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: Monday 7 Sep, 11AM (local time) - 8ft (2.4m), 13s period, ENE swell with 1,815 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 2.4m 13s and forecast to arrive on Monday (Sep 07) at 11AM. 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 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Mon 7th Sep)8ft (2.4m) 13s

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


The Lowdown

Alright folks, Rusty here. Gotta be straight with you – this is a tough one for the Sandy Beach (South Shore) area. The next 16 days are looking pretty grim for paddle surfing. We’ve got a lot of energy out there, but the wind is just killing it.

Right now, starting Saturday the 5th, we’ve got a solid 7ft swell from the ENE with a long 13-second period, packing a massive amount of energy (2370). But the wind is a fresh 22 mph cross-breeze, turning the lineup into a lumpy, cross-chop mess. The water temp is a balmy 81°, which is pretty normal for this time of year. It’s just not worth it.

This pattern just keeps going. Sunday the 6th sees the swell drop a touch to 6ft, but the wind goes cross-onshore, and we’ve got a risk of thunderstorms. That’s zero points for us. The start of the week, Monday the 7th, actually brings the biggest swell of the period at 8ft from the ENE with a 13-second period, and the energy level is through the roof (3336). But again, those cross-onshore winds and t-storms ruin it. That size with those winds would be a washing machine, and honestly, for anyone but the experts, 8ft is already pushing it. The rest of the first week is a write-off – fresh winds, choppy conditions, and not a single good window.

We hit a dry spell for well over a week. The finds are all poor or marginal. The only glimmer of hope comes way late in the forecast, on Wednesday the 16th, when the swell direction starts to shift to the SSW. But the swell is tiny, 3ft, and the wind is still a messy cross-breeze. The energy is actually moderate (854), but the waves are too small to do anything with.

The best chance we get is the morning of Friday the 18th of September. We’ll see a 4ft SSW groundswell with a very long 18-second period, and the energy is strong (1097). The wind is still a cross-breeze, but it’s a bit lighter at 18 mph. It’s marginal, but it’s the best we’ve got. Those long-period SSW swells can find the reefs and points better than the beach, but Sandy Beach is a beach and reef setup, so the long period might make it a bit too straight for the beach break. It’s a long way out, so don’t get your hopes up too high.

This is a classic case of a big, powerful ocean that just won’t line up for us. It’s a kite surfer’s dream for the next week, but for us wave riders, it’s a waiting game. Keep an eye on that SSW pulse, but for now, I’d say the board stays in the bag.

Rusty.

Short Range Forecast

Moderate rain (total 18mm), heaviest on Sun night. Warm (max 27°C on Mon afternoon, min 25°C on Sat morning). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 25°C on Thu morning). Mainly fresh winds.

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
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
1
0
0
0
0
1
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)
2.2
ENE
13
2.2
ENE
13
2.1
ENE
13
1.9
ENE
12
2
E
12
2.2
ENE
12
2.4
ENE
13
2.2
ENE
12
2
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
1.4
ENE
7
1.3
ENE
7
1.6
ENE
13
1.5
ENE
12
1.4
ENE
12
1.4
ENE
11
Wave Graph
Metric surfscale
Energy kJ
1641
1654
1430
1100
1175
1338
1815
1360
1121
901
627
356
273
257
176
208
167
828
619
530
469
Wind (km/h)
35
ENE
30
NE
25
ENE
30
ENE
25
ENE
20
E
25
E
15
E
30
SE
30
S
25
S
15
SSE
15
SE
15
ENE
20
ENE
30
ENE
25
NE
25
ENE
20
ENE
25
ENE
20
ENE
Wind State
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
High Tide
11:03AM0.68m
11:10PM0.21m
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
Low Tide
7:10PM0.12m
4:28AM0.06m
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
clear
clear
part cloud
part cloud
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
rain showers
rain showers
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:15
6:15
6:15
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:42
6:40
6:39
6:38
6:37
6:37
 mm
2
10
2
3
1
1
3
1
2
Temp °C
26
26
26
26
26
26
26
27
27
27
27
27
27
27
26
25
26
25
25
26
25
Feels °C
24
24
26
25
25
26
26
28
28
27
27
29
30
30
27
24
25
25
25
27
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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