Sandy Beach Surf Break

Lat Long: 21.29° N 157.67° W

Sandy Beach Surf Forecast and Surf Report

Issued: 1 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sandy Beach sea temperature is
26.3° 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 9 Jul 2026:

  • Most powerful swell: Sunday 12 Jul, 8PM (local time) - 8ft (2.4m), 8s period, ENE swell with 654 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 8s and forecast to arrive on Sunday (Jul 12) at 8PM. 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 17s period and expected on Sunday (Jul 12) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sun 12th Jul)8ft (2.4m) 8s

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


Alright folks, Rusty here. Let’s be straight with you about what’s on the table for Sandy Beach. We’ve got a long stretch ahead, but it ain’t looking pretty for a while.

We’re looking at a solid gap of surf that just isn’t worth paddling out for. From Wednesday 8 July right through to the end of the month, the conditions are locked into a pattern of strong cross-shore winds. The swell is coming in from the ENE, which is cross to the break, and it’s creating a lumpy, messy cross-chop that’s just no fun. The wave heights are sitting around 5 ft to 7 ft, but the period is short—only 7 to 8 seconds—so the waves are weak and crumbly. The combined energy is moderate, ranging from 294 to 709, but with that wind, it’s all just a washing machine. The water temp is about 79°F, which is pretty normal for this time of year. So, for the first ten days, there’s nothing to get excited about.

Then, on Saturday 18 July, things get a bit bigger. The swell bumps up to 8 ft in the morning and 10 ft in the afternoon, with the energy jumping to 1134 and 1511, respectively. But the wind switches to a cross-onshore, and the wave comment is still “poor surf conditions.” This is big, unruly, and messy—only for the experts, and even then, it’s a chore. The period is still short at 8-9 seconds, so it’s just a lumpy, blown-out mess.

The best of a bad lot, and I mean the only spot that even gets a sniff of a recommendation, comes in the final few days. On Tuesday 21 July, we finally see a shift. The morning still has a cross-shore wind and a 6 ft swell at 8 seconds, but it’s a marginal call. The real standout is the afternoon of 21 July. The swell drops to 3 ft, but the period jumps to 18 seconds—that’s a proper, long-period groundswell coming from the east. The energy is still high at 1012, and the wind drops to a moderate 16 mph from the NE, still cross-shore, but lighter. The wave comment is “marginal surf forecast.” This is a glimmer. The long period (over 15 seconds) means it will have that clean, powerful shape, but at a beach break like Sandy, it can break a bit too straight. Still, it’s the cleanest looking option in the whole window.

The next morning, Wednesday 22 July, holds a similar story: 4 ft swell from the east at 15 seconds, with 1072 energy, but the wind is back up to 22 mph cross-shore, making it lumpy again. The afternoon of 22 July and the 23rd drop off to small, weak, and messy.

So, what’s the call? The only true standout is Tuesday 21 July afternoon. It’s the only time the wind drops and the period gets long. It’s a gamble, but if you’re desperate, that’s your window. The rest of the month is a write-off for surf. The setup is more interesting for kite surfing than paddle surfing, honestly.

Stay patient, and check the forecasts again. Things can change.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Wed afternoon, min 24°C on Wed afternoon). Mainly strong winds.

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 25°C on Sun afternoon, min 24°C on Sat afternoon). Mainly strong winds.

Wed
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
2
ENE
7
2.2
ENE
8
1.8
ENE
8
1.8
ENE
8
1.9
ENE
7
1.9
ENE
7
1.8
ENE
7
2
ENE
7
2.1
ENE
7
1.9
ENE
7
1.9
ENE
7
2.1
ENE
7
2.4
ENE
7
2.2
ENE
8
1.8
ENE
8
1.7
ENE
8
1.8
ENE
7
1.6
ENE
7
1.7
ENE
7
1.9
ENE
7
2.1
ENE
7
Wave Graph
Metric surfscale
Energy kJ
440
539
393
373
400
379
325
381
444
387
369
456
637
525
393
345
349
280
294
369
432
Wind (km/h)
40
ENE
35
ENE
35
ENE
40
ENE
40
ENE
35
NE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
40
ENE
35
ENE
35
NE
35
ENE
35
ENE
40
ENE
25
ENE
35
ENE
Wind State
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
High Tide
9:06PM0.28m
11:46AM0.64m
10:28PM0.22m
12:36PM0.72m
11:48PM0.19m
1:24PM0.77m
00:55AM0.18m
2:10PM0.81m
1:53AM0.19m
2:55PM0.82m
2:47AM0.21m
3:38PM0.81m
3:40AM0.23m
Low Tide
6:02PM0.24m
4:05AM-0.03m
7:30PM0.18m
4:54AM-0.05m
8:27PM0.12m
5:46AM-0.07m
9:12PM0.08m
6:39AM-0.08m
9:53PM0.05m
7:31AM-0.09m
10:32PM0.03m
8:22AM-0.08m
11:09PM0.02m
9:12AM-0.05m
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:56
5:56
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:15
7:15
7:15
 mm
1
Temp °C
25
24
25
25
24
24
25
24
24
24
24
24
25
24
24
24
24
25
25
25
25
Feels °C
21
20
23
22
21
21
22
21
21
21
20
21
22
20
21
20
21
22
22
24
23
  • 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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