Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 7 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Irmas/Leftpoint sea temperature is
27.1°C
0.3° 

Irmas/Leftpoint surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Irmas/Leftpoint surf forecast from 27 Aug 2026:

  • Most powerful swell: Thursday 27 Aug, 11AM (local time) - 4ft (1.2m), 17s period, S swell with 861 kJ wave energy.

Best Forecast Surf Conditions for Irmas/Leftpoint this week:

The most powerful waves expected at Irmas/Leftpoint in the next 16 days are 1.2m 17s and forecast to arrive on Thursday (Aug 27) 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 0.5m 17s period and expected on Saturday (Aug 29) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Thu 27th Aug)4ft (1.2m) 17s

Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.


The Lowdown

G'day, this is Rusty. I'm not gonna lie, the next 16 days at Irmas/Leftpoint are a tough nut to crack. The water temp is about 81°, which is pretty normal for this time of year. But the surf? It's a real battle. The wind and swell just don't want to play nice, and most days are a no-go. There's a whisper of hope right at the tail end, but you'll need some patience.

From 26 August through 30 August, it's a rough ride. The swell is all over the place, but the wind is a persistent cross-shore from the ENE, blowing at 19 to 25 mph, and it's wrecking any chance of clean waves. The energy is moderate (571) on the 26th, but that 2ft, 18-second swell from the south is getting chopped up by the fresh breeze. It's poor surf. The 27th and 28th are the same story—a bit more size on the 27th morning (4ft, 17 seconds, energy 1049), but the cross-shore wind makes it lumpy and messy. No good.

Then the 29th and 30th bring a shift in swell direction to the ENE, but it's short-period windswell junk at 7 seconds. The size jumps to 7ft on the 29th morning, but with a strong breeze at 25 mph, it's a total chop-fest—more for kite surfers than paddle surfers. The energy is moderate (708), but the quality is zero.

The first week of September is more of the same. From 31 August to 5 September, we're stuck with ENE swell, 5ft to 7ft, but the period is still short (7 to 9 seconds), and the wind is cross or cross-on, 12 to 22 mph. The energy is moderate to strong (up to 1001 on 1 September morning), but the surf is marginal at best, with lumpy cross-chop. It's a grind.

Finally, there's a bit of light on 6 and 7 September. On Sunday the 6th, we get a new swell from the SSW, 3ft, with a long 17-second period, and the wind drops to a light breeze from the ESE, 6 mph, turning onshore. This is the best-looking window of the whole forecast. The energy is moderate (637), and the long-period groundswell should wrap nicely into this reef setup. The 7th Monday morning is similar, with a 15-second period and light cross-onshore winds. It's marginal, but it's the closest we get to decent conditions. The optimum swell direction for Irmas/Leftpoint is ESE, so the SSW swell isn't perfect, but the long period and light wind make it a standout.

After that, from 8 to 10 September, it's back to poor surf with ENE windswell and moderate to strong cross-shore winds. The 10th has a long-period 12-second swell from the east, but the wind is a strong breeze at 25 to 28 mph, so it's a mess.

So, here's the bottom line: if you're keen, aim for the 6th and 7th of September. The SSW swell with 3ft and a 15-17 second period, under light winds, is your best shot. But it's marginal, so don't expect perfection. The rest of the period is a write-off.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Warm (max 26°C on Sun afternoon, min 25°C on Sat night). Mainly fresh winds.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
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)
0.8
S
19
1.2
S
17
0.9
S
16
1.1
S
16
0.8
S
14
0.9
S
14
0.8
S
13
1.9
ENE
6
1.8
ENE
7
2.1
ENE
7
1.7
ENE
7
1.7
ENE
7
1.8
ENE
7
1.7
ENE
7
1.7
ENE
8
1.8
NE
8
1.8
NE
9
1.7
NE
8
1.8
ENE
8
Wave Graph
Metric surfscale
Energy kJ
458
861
427
590
260
329
229
289
286
407
270
256
286
289
394
439
471
419
434
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
NE
30
ENE
30
ENE
30
ENE
30
ENE
Wind State
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
High Tide
2:30AM0.34m
2:53PM0.66m
3:07AM0.39m
3:21PM0.62m
3:47AM0.44m
3:48PM0.58m
4:31AM0.49m
4:17PM0.51m
5:19AM0.53m
4:46PM0.43m
6:14AM0.56m
5:18PM0.36m
Low Tide
9:29PM0.09m
8:15AM0.04m
9:49PM0.07m
8:57AM0.06m
10:10PM0.06m
9:43AM0.10m
10:32PM0.05m
10:34AM0.14m
10:56PM0.04m
11:35AM0.19m
11:23PM0.04m
12:53PM0.23m
11:56PM0.04m
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
clear
clear
rain showers
rain showers
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
6:49
6:47
6:46
6:45
 mm
1
1
1
1
Temp °C
25
25
25
25
25
26
25
25
26
25
25
26
25
26
26
26
26
26
26
Feels °C
21
22
22
22
22
23
21
21
23
22
22
23
22
24
24
26
26
25
25
  • 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 Irmas/Leftpoint Surf forecast

The above surf forecast table for Irmas/Leftpoint provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Irmas/Leftpoint can be found by selecting the local surf guide option on the grey menu. Our Irmas/Leftpoint 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 (Irmas/Leftpoint) 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 Irmas/Leftpoint 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.

Irmas/Leftpoint 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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