Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 7 pm 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.8° 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 5 Aug 2026:

  • Most powerful swell: Wednesday 12 Aug, 2AM (local time) - 2.5ft (0.7m), 20s period, S swell with 365 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 0.7m 20s and forecast to arrive on Wednesday (Aug 12) at 2AM. 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 14s period and expected on Thursday (Aug 06) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Wed 12th Aug)2.5ft (0.7m) 20s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at the outlook for Sandy Beach.

To be straight with you, this is a tough stretch. The whole 16-day window is a battle against the wind. We’ve got a persistent ENE breeze that keeps swinging cross-shore, and it’s rarely light. That means for almost every session, the surface is gonna be messy with a cross-chop. The wave energy is there at times, but the quality is just not cooperating.

The first real swell of note shows up around the 8th of August with a 6ft ENE swell, but the period is a short, weak 6 seconds. The wind is a fresh 22 mph cross-shore, so it’s a messy, lumpy affair. That energy climbs into the 9th and 10th, with the combined swell energy hitting moderate numbers (563 and 595), but the wind stays up, and the surf quality is consistently marked as poor. It’s a big, blown-out mess.

From the 12th of August onward, the swell direction swings to the S and gets some serious period, up to 18 seconds. The combined energy jumps into the strong range, hitting 843 and 936. That’s a proper groundswell. But here’s the rub: the wind is still a fresh cross-shore. For a beach and reef setup like Sandy Beach, a long-period S swell with that wind is going to be a battle. The sets will be long and powerful, but the chop will make it a grumpy session.

The standout, if you can call it that, is the 19th of August. The swell is 8ft from the ENE with a period of 9 seconds, and the combined energy is a very strong 1537. The wind finally drops a touch to 22 mph. It’s still cross-shore, and the forecast only calls it marginal. That’s the best we’ve got, but it’s big. Anything over 8ft is for experts only, and with that wind, it’s going to be a heavy, unforgiving wave. The water temperature is about average for the time of year as no anomaly is noted. Crowds are often an issue here, so expect company, but given the conditions, it might be the bravest souls only.

Honestly, for most of this period, the beach is going to be more interesting for the kite surfers than the paddle surfers. The wind is consistent and strong, and the waves are choppy. It’s a bleak run, but it’s a normal pattern for the area when the trade winds lock in. Forecasts can change, but right now, I’d be looking at the 19th as the only remote possibility, and even then, it’s a gamble.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu morning. Warm (max 25°C on Tue night, min 24°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Sat afternoon, min 25°C on Fri night). Mainly fresh winds.

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
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)
1.3
ENE
10
1.2
ENE
10
1.1
ENE
9
1.3
ENE
9
1
ENE
6
0.4
SSW
14
0.4
SSE
11
0.4
SSW
14
1
ENE
6
1.4
ENE
6
1.7
ENE
6
1.6
ENE
7
1.5
ENE
7
1.7
ENE
7
1.7
ENE
7
1.7
ENE
7
1.7
ENE
7
1.6
ENE
7
1.5
ENE
7
Wave Graph
Metric surfscale
Energy kJ
358
253
203
238
81
80
40
77
73
148
226
227
212
289
305
302
286
261
215
Wind (km/h)
25
ENE
25
ENE
25
NE
25
ENE
25
ENE
30
NE
25
ENE
30
ENE
30
NE
30
ENE
35
NE
30
NE
35
ENE
40
ENE
40
ENE
35
ENE
30
ENE
35
ENE
30
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
High Tide
9:10AM0.55m
7:10PM0.29m
10:22AM0.61m
8:39PM0.22m
11:25AM0.67m
10:36PM0.19m
12:21PM0.73m
00:00AM0.20m
1:10PM0.77m
1:01AM0.23m
1:55PM0.79m
1:52AM0.27m
Low Tide
1:37AM0.03m
4:33PM0.27m
2:24AM0.02m
6:43PM0.21m
3:25AM0.02m
7:38PM0.16m
4:32AM0.00m
8:16PM0.11m
5:38AM-0.02m
8:50PM0.08m
6:37AM-0.03m
9:21PM0.06m
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:05
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:06
7:06
7:05
7:05
7:04
 mm
1
Temp °C
25
25
25
25
25
25
25
25
25
25
25
26
25
25
25
25
25
25
25
Feels °C
25
25
24
25
25
24
24
23
23
24
23
23
23
23
23
23
24
23
23
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Sandy Beach:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sandy Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest