Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 1 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Irmas/Leftpoint sea temperature is
27.1° C
0.4° 

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 15 Aug 2026:

  • Most powerful swell: Saturday 15 Aug, 8PM (local time) - 18ft (5.5m), 10s period, E swell with 5,691 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 5.5m 10s and forecast to arrive on Saturday (Aug 15) 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 0.7m 16s period and expected on Friday (Aug 21) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sat 15th Aug)18ft (5.5m) 10s

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


The Lowdown

Alright, Rusty here. Let’s have a look what we’ve got for this stretch of coast. We’ve only got one spot to work with, Irmas/Leftpoint. It's a reef setup, intermediate level, fairly consistent, and it’s exposed to the swell. The water temp is normal for the time of year, nothing unusual there. Shame the news isn’t better.

Honestly, the outlook is a tough one. For the first week, from Saturday the 15th, right through until at least Friday the 28th, the surf is in a pretty poor state. The wind is almost always a problem—mainly cross, cross-on, and at times hitting near gale force. That is going to chop everything up. Saturday the 15th has a big 13ft to 15ft East swell but with 34 mph cross-wind, it’s just a complete mess, not worth a look.

Through the middle of the week, we see swell dropping, but the wind stays strong and messy. A 6ft swell on Monday morning the 17th is cross-on and lumpy, not the clean wave you want. It’s the same story: moderate to fresh breezes, cross-wind, poor quality surf. The combined energy is mostly moderate to strong, but it doesn't matter with those winds.

There’s a little window on Friday the 21st and Saturday the 22nd where the wind drops to a gentle breeze, but the swell is tiny—around 3ft to 4ft from the ENE with a short period of only 6-8 seconds, the combined energy is weak (between 107 and 249). Still side-shore wind, so it’s a bit bumpy. Not a standout by any stretch.

It’s not until the tail end, around Thursday the 27th into the 30th, that the swell size builds back up. Thursday the 27th morning shows 4ft from the East at 18 seconds, that’s a beautiful long-period groundswell. The combined energy is strong (1491) but the wind is still cross from the ENE at 22 mph, so it’s lumpy. The forecast says "marginal", but with that long period, this is a reef, so the waves might just have some shape despite the wind. Saturday the 29th will see 6ft East swell with similar lumpy conditions. Not clean.

The last call, Sunday morning the 30th of August, is the best bet. A 10ft swell from the ENE with a period of 14 seconds gives strong energy (3985). Wind is a moderate cross-shore breeze, so it’s still not glassy, but it's the only day that gets a score of 2/10. That swell is solid and well overhead, expert territory for the reef. It could offer some heavy sets if the wind plays ball. That’s the one to circle on the calendar.

But overall, it’s a lean run. A big gap of poor surf until the last few days, and then only one day that hints at something half decent. It’s not a typical blank run for this area, but when it’s bad, it’s bad.

- Rusty

Short Range Forecast

Heavy rain (total 39mm), heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 24°C on Sat night). Winds decreasing (gales from the ENE on Sat night, light winds from the E by Sun night).

Days 4-6 Weather Summary

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

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
E
9
5
E
10
4
E
10
2.5
ENE
9
2.3
ENE
8
2.1
ENE
8
0.9
S
14
1.6
ENE
7
0.8
S
13
1.4
ENE
6
1.2
ENE
7
1.3
ENE
8
1.3
ENE
7
1.4
ENE
7
1.3
ENE
7
0.6
SSW
18
0.6
SSW
17
0.9
NE
7
1.1
NE
7
1.1
NE
7
0.8
SSW
16
Wave Graph
Metric surfscale
Energy kJ
2822
4280
3106
1057
719
520
334
257
222
153
131
196
141
176
167
207
202
79
118
140
322
Wind (km/h)
55
ENE
55
ENE
65
ENE
35
ESE
20
ESE
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
20
ENE
25
NE
20
ENE
25
ENE
20
NE
15
NE
15
NE
15
ENE
5
E
Wind State
cross
cross
cross-on
on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
High Tide
4:53PM0.55m
5:55AM0.48m
5:21PM0.47m
6:52AM0.50m
5:48PM0.38m
7:56AM0.52m
6:10PM0.31m
9:08AM0.53m
10:20AM0.55m
8:45PM0.20m
11:21AM0.57m
10:59PM0.20m
Low Tide
10:54AM0.13m
11:44PM0.05m
11:53AM0.20m
00:11AM0.05m
1:08PM0.25m
00:39AM0.07m
2:59PM0.27m
1:14AM0.09m
2:00AM0.10m
7:38PM0.20m
3:06AM0.11m
7:49PM0.17m
4:20AM0.10m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
6:59
6:58
6:57
6:57
6:55
 mm
1
1
11
15
7
4
Temp °C
26
26
26
26
27
27
26
26
25
25
26
25
25
25
25
25
25
25
26
26
26
Feels °C
21
21
19
24
28
29
26
25
23
23
24
23
24
24
24
25
25
26
28
28
28
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Irmas/Leftpoint:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Irmas/Leftpoint surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest