Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 7 am 27 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, 2PM (local time) - 3.5ft (1.1m), 17s period, S swell with 710 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 1.1m 17s and forecast to arrive on Thursday (Aug 27) at 2PM. 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 2PM (Thu 27th Aug)3.5ft (1.1m) 17s

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


The Lowdown

Alright, Rusty here. Let's have a look at the only spot firing in the window, Irmas/Leftpoint.

Straight up, I gotta be honest with you – this 16-day stretch is a tough one for Irmas/Leftpoint. We're looking at a blank run for the most part, with nothing but poor surf conditions dominating the forecast. There's a glimmer of something by the start of September, but even then, it's marginal at best. The water temperature is sitting at 81°F with a 0.5°F anomaly, so it's pretty much average for this time of year, nothing to write home about.

The pattern kicks off on Thursday the 27th of August. We get a 4ft south swell rolling in with a long 17-second period, but it's all undone by a fresh 22 mph cross-shore wind from the ENE. The wave energy is moderate at 1098, but the conditions are lumpy and poor. Not a single wave worth paddling for. This carries right through the week – the swell drops, the wind stays strong and cross, and the quality never improves.

We hit the 29th of August and the swell direction swings to the ENE, but the period drops to a short 6-7 seconds and the wind cranks up to 25 mph. The swell height bumps up to 7ft, but with that short period and strong cross-onshore wind, it's a messy, blown-out affair. This setup looks more interesting for kite surfing than paddle surfing.

The 1st of September finally sees a slight improvement. The swell is still ENE, 7ft with an 8-second period, and the wind is a fresh 19 mph cross-shore. The energy is strong at 1001, but it's only a marginal call – the surf is still lumpy and questionable. It's not a standout, but it's the best we've seen. The afternoon isn't any better.

The 2nd of September brings a brief shift – a 3ft SSW groundswell with a 16-second period, but the wind is cross-onshore at 16 mph and there are rain showers. The energy is moderate at 972, but the conditions are choppy and poor. It's a tease of a better swell direction, but the wind kills it.

The rest of the first week and into the second week is more of the same. The swell sticks around 6ft to 8ft from the ENE, with periods creeping up to 11 seconds by the 4th of September. The wave energy gets strong, hitting 1121 on the afternoon of the 4th, and even 1807 on the 5th of September. But the wind is relentless – a fresh to strong 19-28 mph cross-shore, keeping everything lumpy and messy. The 7th of September has a 8ft swell with 11-second period and 1768 energy, but the wind is a strong 25-28 mph, making it a no-go for anyone but the most dedicated, and even then, it's messy.

The 8th of September is a write-off. A near gale at 31 mph from the ENE with crossing waves. The swell is 7ft with a 10-second period, but with that wind, it's just a washing machine. The 9th and 10th are similar – strong winds, messy cross-onshore conditions, and poor surf. The 11th of September sees a shift to a southerly wind, but it's onshore at 31 mph with risk of thunderstorms, and the swell drops to 5ft. It's a rough end to the outlook.

The standout, if you can call it that, is the morning of the 1st of September. It's the only time the score hits a 1, and even then, it's marginal. The 7ft ENE swell with 8-second period and fresh cross-shore wind is the best of a bad bunch. The 4th of September afternoon also gets a 1, with a 7ft ENE swell, a longer 11-second period, and strong energy at 1121, but again, the wind is a fresh cross-shore. It's not clean, but it's the most promising.

For a spot that's fairly consistent and exposed to the swell, this is a poor run. But it's a reef break, so when it does get clean, it could be good. The forecasts can change, so don't give up hope entirely. But right now, I'd say keep the board in the car and wait for a better day.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu morning, min 25°C on Thu morning). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sun afternoon, min 25°C on Sun morning). Mainly fresh winds.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
AM
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
1
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)
1.2
S
17
0.9
S
16
1.1
S
16
0.8
S
14
0.9
S
14
0.8
S
13
1.8
ENE
6
2.2
ENE
7
2
ENE
7
2.2
ENE
7
1.8
ENE
7
1.9
ENE
7
2
ENE
7
2.1
ENE
8
2.1
ENE
8
2.1
ENE
8
1.9
ENE
8
2
ENE
8
0.9
SSW
16
1.9
ENE
8
2
ENE
8
Wave Graph
Metric surfscale
Energy kJ
861
427
590
260
329
225
260
410
360
433
299
326
412
487
545
559
488
508
437
488
523
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
40
ENE
40
ENE
40
ENE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
30
ENE
35
ENE
25
ENE
25
ENE
30
ENE
25
ENE
Wind State
cross
cross
cross-on
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross-on
High Tide
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
7:19AM0.59m
5:54PM0.28m
Low Tide
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
2:47PM0.24m
00:39AM0.05m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
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
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:50
6:49
6:47
6:46
6:45
6:45
 mm
1
1
Temp °C
25
25
25
25
25
25
25
25
25
25
26
25
25
25
25
26
26
26
26
26
26
Feels °C
22
22
22
22
21
21
21
21
22
22
22
22
22
22
22
25
24
25
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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