Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.5° C
0.3° 

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 18 Jul 2026:

  • Most powerful swell: Friday 24 Jul, 11PM (local time) - 8ft (2.4m), 7s period, ENE swell with 620 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 7s and forecast to arrive on Friday (Jul 24) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 13s period and expected on Saturday (Jul 18) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Fri 24th Jul)8ft (2.4m) 7s

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


The Lowdown

Alright crew, Rusty here. Let’s talk about Sandy Beach. I’m not gonna sugarcoat it – this forecast is a tough read. We’ve got a long stretch of bumpy, windblown ocean, and only one little window that might save the trip. The water is about normal for this time of year, so no shock there.

The whole thing kicks off with a nasty cross-shore wind from the ENE that’s blowing 20 to 25 mph, and it doesn’t let up for days. From Saturday the 18th, the surf is a mess. The swell is there – a few feet of it – but the wind is just tearing it apart. The combined energy hits some moderate numbers, like 501 on the 18th morning, but with that lumpy cross-chop, it’s unrideable. You’ll see a few pulses of long-period groundswell from the SSW around the 22nd and 23rd, with periods up to 23 seconds, and the energy climbs to 772 and 866. But it’s all cross-onshore or cross-shore wind, so forget it. That long-period groundswell would work a treat at a point or reef, but on this beach it’s just a mess.

We’re looking at a solid week of poor conditions. The wind is too strong, the surface is too choppy. Honestly, if you’ve got a kite, this is your week, because the paddle surfing is a lost cause.

Then, a small glimmer. Around the 26th and 27th of July, the swell shifts to the east with a period of 17 to 18 seconds. The wave comment finally says “marginal surf forecast,” which is the best we’ll see. The wave heights are around 4 to 5 feet from the east, and the combined energy is serious – hitting 1768, 1997, and 1812. The wind eases up to a moderate cross-shore from the ENE, still not perfect, but way better than the 25 mph garbage we had. This is the only window worth looking at. Sandy Beach can get crowded, and with this east swell, it’ll be the place to be. It’s not a classic, but it’s the only game in town.

After that, it’s back to the doldrums. The energy drops, the swell goes short and weak, and the wind stays cross. The 30th of July afternoon shows a bump to 6 feet from the ENE, but the period is only 11 seconds and the wind is cross, so it’s just another messy day.

So, mark your calendar for the 26th and 27th of July. That’s your shot. The rest is a long, flat, windy wait. Don’t give up, but don’t get excited either.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Fri night, min 24°C on Sat night). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Warm (max 25°C on Mon night, min 24°C on Mon night). Mainly strong winds.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
ENE
7
2
ENE
7
1.8
ENE
8
1.7
ENE
8
1.6
ENE
8
1.5
ENE
8
1.4
ENE
8
1.3
ENE
8
0.8
S
16
0.8
S
15
0.9
S
14
0.9
S
14
0.9
S
13
1.5
ENE
7
0.6
SSW
23
0.6
SSW
22
0.7
SSW
20
0.7
SSW
20
0.9
SSW
18
Wave Graph
Metric surfscale
Energy kJ
166
360
356
353
341
266
257
191
321
267
329
307
273
195
426
363
412
395
464
Wind (km/h)
25
ENE
35
ENE
40
ENE
30
ENE
30
ENE
35
ENE
30
ENE
25
ENE
25
NE
25
ENE
25
ENE
30
ENE
25
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
Wind State
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
cross-on
cross
cross-on
High Tide
6:37AM0.35m
6:10PM0.55m
7:46AM0.40m
6:42PM0.45m
8:59AM0.45m
7:13PM0.37m
10:08AM0.51m
7:46PM0.29m
11:08AM0.55m
8:50PM0.23m
11:59AM0.59m
10:38PM0.19m
Low Tide
00:53AM0.03m
11:55AM0.16m
1:26AM0.03m
1:10PM0.23m
1:58AM0.03m
2:57PM0.28m
2:33AM0.04m
5:25PM0.28m
3:12AM0.05m
7:38PM0.23m
3:57AM0.05m
8:24PM0.18m
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:58
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:14
7:14
7:14
7:13
7:13
 mm
1
1
Temp °C
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Feels °C
24
22
21
22
23
22
23
23
23
23
24
23
23
24
22
22
22
21
22
  • 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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