Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 1 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Irmas/Leftpoint sea temperature is
27.0°C
0.2° 

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 30 Aug 2026:

  • Most powerful swell: Saturday 5 Sep, 8PM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,240 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 3.0m 8s and forecast to arrive on Saturday (Sep 05) 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 0.5m 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 Powerful 8PM (Sat 5th Sep)10ft (3.0m) 8s

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


The Lowdown

Alright, grab a coffee, let's have a surf check.

Mate, to be honest with you, looking at the whole 16-day window for Irmas/Leftpoint, it's a tough stretch ahead. The wind is going to be a persistent pain in the backside. We've got a solid run of ENE and NE winds that are going to sit right across that ESE exposed reef, creating a messy cross-shore chop that just won't let up. There's energy in the water for sure, but the quality is going to be cooked for most of it. The first real chance of anything decent doesn't roll in until the back half of the run, and even then, it's not going to be perfect.

It kicks off from Saturday afternoon, the 29th of August, with some 5ft of weak, wind-affected ENE swell. The energy is low (484), the wind is a strong 25 mph cross-shore, and the report says it's just poor surf conditions. That's the story for the first week. We've got a bit of a messy run right through to the 5th of September, with the swell bumping up a bit and the energy climbing to moderate (965), but that fresh to strong cross-shore wind just doesn't give us a break. It's all cross-shore wind and lumpy, choppy conditions. Not what you want.

Then things get a little crazy, but not in a good way. On the 6th of September, the swell jumps right up with a very strong energy reading (5588), hitting 16ft from the ENE. But it's a strong 45 km/h cross-shore wind, and it's messy. That sort of size with that wind would be a washing machine. It stays big and messy through the 7th, with strong cross-onshore winds. For a reef break like this, that's just not going to be any good for paddling. Honestly, that kind of setup looks more interesting for kite surfing than paddle surfing.

The real standout, and the only one I'd even slightly consider, is that window around Monday the 7th and Tuesday the 8th of September. On Monday the 7th of September, the morning has a 7ft ENE swell with a moderate energy (1201), but the wind is a strong 28 mph cross-onshore—still messy. The real glimmer of hope is Tuesday the 8th of September morning, when we see the swell direction nudge around to the NE. That's a better fit for the optimum swell direction at this spot. The wind is still a strong 25 mph cross-shore, and the conditions are still described as messy, so it's not perfect, but out of this whole grim run, that Tuesday morning is the best on offer. The swell is 6ft, the period is a very long 9 seconds, and the energy is a strong 985. That long period groundswell can produce some nice lines on a reef if it slots in, but the wind is the killer here. It'd be a session for the dedicated.

The rest of the second week just fades back into the same cross-shore wind pattern, with moderate to fresh winds and the swell dropping off into the 5ft to 4ft range. The water temp here is sitting at a very warm 81° with a near-normal anomaly of 0.4°, so at least you won't be cold while you're fighting the chop.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 26°C on Sun afternoon, min 25°C on Sat afternoon). Mainly strong winds.

Days 5-7 Weather Summary

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

Sat
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
PM
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
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
ENE
7
2.4
ENE
7
2.1
ENE
7
1.8
ENE
7
1.7
ENE
7
1.9
ENE
7
1.9
ENE
8
2
ENE
8
1.9
ENE
8
2
ENE
8
2
ENE
8
0.9
S
16
0.9
S
16
1.7
ENE
8
1.8
ENE
8
1.7
ENE
8
1.9
ENE
7
1.9
ENE
7
1.9
ENE
7
2.4
ENE
7
Wave Graph
Metric surfscale
Energy kJ
214
620
419
316
248
372
430
483
432
496
508
422
401
319
383
331
345
376
390
637
Wind (km/h)
40
ENE
40
ENE
40
ENE
40
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
NE
35
ENE
35
ENE
35
NE
35
ENE
40
ENE
35
ENE
30
NE
30
ENE
30
NE
35
NE
35
ENE
Wind State
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
High Tide
3:48PM0.58m
4:31AM0.49m
4:17PM0.51m
5:19AM0.53m
4:46PM0.43m
6:14AM0.56m
5:18PM0.36m
7:19AM0.59m
5:54PM0.28m
8:36AM0.61m
7:01PM0.22m
9:55AM0.64m
9:27PM0.19m
Low Tide
10:32PM0.05m
10:34AM0.14m
10:56PM0.04m
11:35AM0.19m
11:23PM0.04m
12:53PM0.23m
11:56PM0.04m
2:47PM0.24m
00:39AM0.05m
5:18PM0.21m
1:39AM0.06m
6:33PM0.16m
3:03AM0.07m
clear
part cloud
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:47
6:46
6:45
6:45
6:45
6:44
 mm
1
Temp °C
25
25
25
26
25
25
25
25
25
25
25
25
26
25
25
25
25
25
25
25
Feels °C
21
22
22
22
22
22
22
22
23
22
22
23
24
23
21
22
21
22
22
21
  • Map Icons:
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  • 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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