Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 7 am 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Irmas/Leftpoint sea temperature is
26.4° 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 17 Jul 2026:

  • Most powerful swell: Thursday 23 Jul, 11PM (local time) - 3.5ft (1.0m), 19s period, SSW swell with 687 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 1.0m 19s and forecast to arrive on Thursday (Jul 23) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 16s period and expected on Friday (Jul 17) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Thu 23rd Jul)3.5ft (1.0m) 19s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s coming our way for the next couple of weeks. Gotta be straight with you – it’s a tough stretch ahead. There’s a long gap of poor conditions before we see anything worth getting excited about.

Right now and through the end of July, it’s a bit of a write-off. For over a week, from Friday the 17th right through to Saturday the 25th, the onshore and cross-shore winds are howling from the ENE at 18 to 25 mph. That’s blowing out any chance of clean surf at Irmas/Leftpoint. The swell is mixed up and lumpy, and the wave energy is moderate but messy. The water temp is about 80° – pretty normal for this time of year, so at least a dip won’t be a shock.

The first sign of life doesn't show up until Sunday the 26th of July, and even then it’s only marginal. You’re looking at 5 ft to 5 ft of east swell with a very long period of 17 seconds (strong energy around 2326-2449). That’s proper groundswell, but the cross-wind from the ENE at 22 mph is still going to put a chop on it. For a reef setup like Irmas, that long-period swell could offer some shape if the wind ever lays down, but it’s not looking clean enough to get excited about.

Things start to get a bit more interesting as we move into the last week of July and the start of August. On Monday the 27th of July, the swell builds to 6 ft in the morning and 7 ft in the afternoon, still from the east, with a long period of 16 seconds. The wind drops to a moderate breeze of 16 mph from the ENE, which is still cross-shore, but it's a step in the right direction. The energy is strong (2745-3237). This is getting into the territory where it’s going to be a handful. Over 8 ft and it’s expert-only, so the afternoon on the 27th is pushing that limit. Tuesday the 28th stays solid with 8 ft in the morning and 7 ft in the afternoon, east swell at 14 seconds, and the wind drops further to 12 mph from the NE in the morning – lighter cross-shore, which is the best we’ve seen.

If I had to pick a standout from this whole period, I’d point to Tuesday the 28th of July. The morning session looks the most promising. You’ve got a solid 8 ft east swell (moderate to strong energy around 2599) and a moderate breeze at 12 mph from the NE. It’s still cross-shore, but it's the lightest wind in the forecast. At Irmas/Leftpoint, that east-northeast swell direction is a good angle for the reef, and with that period of 14 seconds, you’ll have some proper lines coming through. It's big enough to be expert territory, so leave the foamie at home. The crowds are listed as "sometimes", so you might have company, but it shouldn’t be a circus.

After that, things ease off into the 29th and 30th with 5 ft to 6 ft of east swell and moderate cross-shore winds. Still worth a paddle if you’re keen, but not the same quality as Tuesday.

That’s the picture. A long wait, then a solid Tuesday if you’ve got the skills for it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Fri afternoon, min 24°C on Sat night). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Mon morning, min 24°C on Mon night). Mainly fresh winds.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
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
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)
1.3
ENE
7
1.4
ENE
7
1.7
ENE
7
2.1
ENE
7
2.1
ENE
8
2
ENE
8
1.7
E
6
1.5
ENE
8
1.5
E
8
0.8
S
16
0.8
S
16
0.9
S
15
0.9
S
14
0.9
S
14
0.9
S
13
1.3
ENE
7
0.6
SSW
23
0.7
SSW
22
0.7
SSW
20
0.7
SSW
20
1
SSW
18
Wave Graph
Metric surfscale
Energy kJ
154
170
240
408
494
472
239
284
294
329
321
339
329
307
277
149
426
480
412
395
616
Wind (km/h)
30
ENE
35
ENE
30
ENE
35
ENE
40
ENE
30
ENE
35
ENE
35
NE
30
ENE
25
ENE
25
NE
25
ENE
25
ENE
35
ENE
25
ENE
30
ENE
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
Wind State
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
High Tide
5:35PM0.64m
6:37AM0.35m
6:10PM0.55m
7:46AM0.40m
6:42PM0.45m
8:59AM0.45m
7:13PM0.37m
10:08AM0.51m
7:46PM0.29m
11:08AM0.55m
8:50PM0.23m
11:59AM0.59m
10:38PM0.19m
Low Tide
10:55AM0.08m
00:53AM0.03m
11:55AM0.16m
1:26AM0.03m
1:10PM0.23m
1:58AM0.03m
2:57PM0.28m
2:33AM0.04m
5:25PM0.28m
3:12AM0.05m
7:38PM0.23m
3:57AM0.05m
8:24PM0.18m
clear
clear
part cloud
clear
clear
part cloud
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>
5:58
5:58
5:58
5:58
5:58
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:14
7:14
7:14
7:13
7:13
 mm
Temp °C
25
26
25
26
25
24
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Feels °C
24
24
25
23
21
21
22
22
23
23
24
24
24
23
23
23
22
22
22
21
22
  • 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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