Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 1 pm 23 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 24 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 0.5m 14s period and expected on Sunday (Aug 23) at 8PM.

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 get real about what’s coming up for Irmas/Leftpoint.

To be straight with you: this is a tough stretch. We’ve got a solid 16-day window ahead, but it opens into a messy picture. The winds for the first week are relentless—strong, cross-shore, and onshore—churning up lumpy, cross-chop conditions. The water temperature is 81°F with a small positive anomaly of 0.5°F, meaning it’s pretty standard for late August, nothing out of the ordinary.

The opening run from Sunday the 23rd through about Tuesday the 27th is a write-off. The combined swell energy is weak to moderate (values from 528 to 737), the swell is short-period at 7 seconds, and the 22–25 mph cross-winds ruin any chance of clean faces. This is beach-and-reef setup, but with the wind and chop, honestly looks more interesting for kite surfing than paddle surfing.

We start to see a shift on Thursday morning the 27th. A new longer-period groundswell from the S shows up at 4ft and 17 seconds, and the combined energy jumps to 1028. Problem remains: the wind is still cross and strong at 22 mph, so the surf stays lumpy and marginal. A couple of sessions on Friday the 28th are the same story—S swell around 3–3ft fading, but that ENE wind just won’t let go.

Then a gap appears. From Saturday the 29th all the way through Tuesday morning the 3rd of September, it’s back to short-period ENE slop with energy fluctuating in the moderate range (438–1355). All cross-wind, all messy. I can't recommend you paddle out here. That’s nearly a full week of nothing.

The highlight, if you can call it that, begins late on Thursday the 3rd of September and through the weekend of the 6th–7th. Look towards the 4th of September Friday afternoon: a longer-period ENE swell at 7ft and 12 seconds hits with strong wave energy (1588). The wind remains cross though, so it’s far from clean. Saturday the 5th morning shows a similar 7ft ENE swell (12 seconds, energy 1616) with a cross NE breeze. It’s marginal—there are lines there, but the wind still messes with the surface.

Sunday the 6th of September brings the biggest pulse of the whole forecast: 10ft ENE swell with 12 seconds in the morning, energy blowing up to 2798. That’s proper strong energy. Problem is, at 10ft this is expert-only territory. For Irmas/Leftpoint, a long-period groundswell like this from the ENE often works best at this reef and point setup, but the cross wind (19 mph) means you won’t get the perfection you’d hope for. On Monday the 7th it drops back to 8ft with a shorter period of 9 seconds, but the cross-wind remains. Only marginal at best.

There is no standout session in this 16-day window that I’d call a winner. The swell direction (ENE) doesn’t match the optimum ESE direction for Irmas/Leftpoint, and on top of that, the persistent cross-wind kills the quality. Crowds are possible here, but with conditions this average, it won’t be packed. Honestly, if you’re jonesing for a wave, Saturday the 5th or Sunday the 6th offer the most size and energy, but only for experienced surfers who can handle a lumpy, cross-wind 7–10ft face.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

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

Sun
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
1
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)
2.2
ENE
7
1.9
ENE
7
1.7
ENE
7
1.7
E
7
1.7
E
7
2.1
E
7
1.8
ENE
7
2
E
7
1.6
ENE
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
2
E
7
1.7
ENE
7
1.7
ENE
7
2
ENE
7
Wave Graph
Metric surfscale
Energy kJ
407
307
277
278
278
478
346
388
239
307
458
861
427
590
260
329
377
255
255
340
Wind (km/h)
40
NE
40
ENE
35
ENE
30
ENE
35
ENE
40
ENE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
40
ENE
40
ENE
35
ENE
40
ENE
35
ENE
Wind State
cross
cross
cross
cross
cross
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
High Tide
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
3:48PM0.58m
4:31AM0.49m
Low Tide
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
9:43AM0.10m
10:32PM0.05m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
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
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:52
6:52
6:52
6:51
6:50
6:49
 mm
Temp °C
26
26
26
26
26
26
26
25
25
25
25
25
25
25
26
25
25
25
25
25
Feels °C
24
24
25
25
26
23
23
22
21
21
22
23
22
22
23
22
21
21
21
21
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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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