Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 1 pm 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Irmas/Leftpoint sea temperature is
26.8°C
0.0° 

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 23 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 0.7m 16s period and expected on Saturday (Aug 22) at 5PM.

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

Alright folks, Rusty here. Let’s take a look at what’s on the menu for the next couple of weeks.

Well, I’ll be honest with you – it’s a pretty grim stretch ahead. For the entire 16-day forecast window, there’s not a single standout session that I’d get excited about. The only break on the cards is Irmas/Leftpoint, a reef setup that’s fairly consistent but exposed to the open ocean. The conditions are just not cooperating.

The water temperature is sitting at 80°F which is bang on average for this time of year, so at least the water will feel nice on those long, frustrating paddles.

Starting from Saturday, August 22nd, right through the rest of the month, we’ve got a relentless ENE wind blowing at 19-25 mph. It’s a stiff cross-shore (or cross-on) that’s churning the ocean into a messy, lumpy cross-chop. The swell is coming in from the ENE at around 6 ft to 7 ft, but with a short, weak period of just 7 seconds, it’s pretty junky. The combined wave energy is moderate though, hitting the 395–662 mark. Still, the wind is ruining any chance of a clean face. The forecast calls it “poor surf conditions” and I’m not going to argue.

We get a bit of a change late in the month. Around August 26th through the 28th, the swell switches to the south with a much longer period – 14 to 18 seconds. That’s proper groundswell energy, and the combined energy jumps up to 1020 on the 27th morning. But here’s the kicker: the wind is still a fresh cross-shore from the ENE at 19-22 mph. That long-period swell will be breaking a bit too straight on this reef, and with the wind on it, it’s going to be a bumpy, frustrating mess. It’s not worth the drive.

The first week of September is more of the same. The wind eases a little on Wednesday, September 2nd, dropping to a gentle 9 mph cross-shore from the NE. The swell is still ENE at 6 ft, period 8 seconds, and the energy is strong at 862. The forecast only gives it a “marginal” 2 out of 10. It’s the best of a bad bunch, but I wouldn’t call it a standout. The face will be lumpy with a slight cross-chop. It’s just not clean.

After that, from September 3rd onward, the wind picks right back up to 22-25 mph, and we’re back to poor conditions. On September 4th, the energy hits 1029, but with a strong cross-shore and messy chop, it’s more of a kite-surfing setup than a paddle session.

Honestly, if you’ve got a kite, some of these days with strong cross-shore winds and moderate swell might look interesting. But for a surfer? There’s not a single day I’d call a winner. The only real glimmer is the morning of September 2nd, but even then, it’s a gamble. The wait for a clean, glassy day is going to be a long one.

Keep your board waxed and your eyes on the forecast. It can’t stay this bad forever.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

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

Sat
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
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
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)
1.9
ENE
7
1.9
ENE
7
1.9
ENE
7
2.1
E
7
1.8
ENE
7
1.9
ENE
7
1.7
ENE
7
1.7
E
7
1.9
E
7
1.8
ENE
7
1.7
ENE
7
1.6
E
7
0.7
S
18
0.8
S
19
1.2
S
17
0.9
S
16
1.1
S
16
0.8
S
14
0.9
S
14
1.6
ENE
7
Wave Graph
Metric surfscale
Energy kJ
345
383
307
414
308
352
285
286
376
346
268
226
307
458
861
427
590
260
329
239
Wind (km/h)
40
ENE
35
ENE
40
ENE
40
NE
40
ENE
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
Wind State
cross
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
High Tide
00:02AM0.21m
12:51PM0.62m
00:45AM0.24m
1:26PM0.65m
1:20AM0.27m
1:56PM0.66m
1:55AM0.30m
2:25PM0.67m
2:30AM0.34m
2:53PM0.66m
3:07AM0.39m
3:21PM0.62m
3:47AM0.44m
Low Tide
8:09PM0.14m
5:23AM0.08m
8:29PM0.12m
6:13AM0.06m
8:49PM0.11m
6:56AM0.04m
9:09PM0.10m
7:36AM0.04m
9:29PM0.09m
8:15AM0.04m
9:49PM0.07m
8:57AM0.06m
10:10PM0.06m
clear
clear
clear
part cloud
clear
clear
clear
part cloud
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>
6:11
6:11
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:53
6:52
6:52
6:52
6:51
6:50
 mm
Temp °C
26
26
25
26
26
26
26
26
26
26
25
25
25
25
26
26
25
25
25
25
Feels °C
24
24
23
23
23
25
25
25
24
23
22
21
22
22
24
24
22
22
21
22
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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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