Irmas/Leftpoint Surf Break

Lat Long: 21.29° N 157.66° W

Irmas/Leftpoint Surf Forecast and Surf Report

Issued: 7 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Irmas/Leftpoint sea temperature is
27.0° 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 13 Aug 2026:

  • Most powerful swell: Saturday 15 Aug, 8PM (local time) - 13ft (4.0m), 9s period, E swell with 2,656 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 4.0m 9s 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 0.5m 16s period and expected on Wednesday (Aug 19) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sat 15th Aug)13ft (4.0m) 9s

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


The Lowdown

Alright folks, Rusty here with a look at what’s coming up for Irmas/Leftpoint.

I hate to be the bearer of bad news, but honestly, looking out over the next sixteen days, it’s a tough stretch. We’ve got a wave forecast, but every day through to the end of the month is served up with messy, windy conditions. The wind is just relentless. It’s mostly a strong cross or cross-onshore breeze, and that’s going to chop everything up into a lumpy, bumpy mess. The water temp is sitting about average for this time of year, so that’s one thing we don't have to complain about.

Let’s walk through it. Starting on Thursday, August 13th, there’s a solid, very long-period groundswell coming in from the south, with the swell energy running at a moderate 903. Height is around 3ft, but with a NE wind howling at 35 km/h, the surface is just full of cross-chop. No good. Friday, the swell jumps up but the period drops, and we still have a strong crosswind locking in a messy look.

The swell peaks this weekend. Saturday, August 15th sees the swell energy climbing all the way up to 2651, with waves hitting 13ft from the east. That’s a lot of water moving. But the wind is a near gale out of the ENE at 50 km/h. At a spot like this, that’s just going to be crossing up and closing out on itself. For the experienced crew, it’s a beast, but for anyone else, this is a solid pass. The set-up here looks more interesting for kite surfing than paddle surfing with those winds. Sunday stays big and angry.

Into the middle of the next week, from Monday the 17th through to the 20th, the swell drops back, but we stay stuck with a fresh cross-shore wind. We get a bit of long-period SSW groundswell showing up around the 19th and 20th, but it’s weak at 1ft to 2ft, and still lumpy. The crowd factor at Irmas/Leftpoint means it can get busy sometimes, but with this forecast, I wouldn't be worried about a lineup.

Looking at the tail end, Friday, August 28th the swell tries to pick back up to 7ft from the ENE, but again, it’s that same story: a fresh cross-onshore breeze keeping it lumpy and messy.

There are simply no standouts in this window. Not a single moment where the stars align. We just have to take this one on the chin. Forecasts can change, but right now, it’s a waiting game.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri night. Warm (max 26°C on Wed night, min 25°C on Wed night). Winds increasing (fresh winds from the ENE on Wed night, near gales from the ENE by Sat morning).

Days 5-7 Weather Summary

Heavy rain (total 28mm), heaviest during Sun night. Warm (max 26°C on Sat night, min 25°C on Sat night). Winds decreasing (near gales from the ENE on Sun morning, moderate winds from the ENE by Mon night).

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
16
1
S
16
1.2
S
15
2.5
ENE
7
2.4
ENE
7
2.3
ENE
8
3
ENE
8
3.5
E
9
4
E
9
3.5
E
9
3
ENE
8
2.5
ENE
8
2.2
ENE
8
1.8
ENE
7
0.8
S
14
1.6
ENE
7
1.6
ENE
7
1.3
ENE
7
1.3
ENE
8
Wave Graph
Metric surfscale
Energy kJ
520
501
653
645
607
620
1191
2089
2403
2281
1058
807
555
349
261
254
212
172
181
Wind (km/h)
30
ENE
35
NE
40
ENE
40
ENE
40
ENE
40
NE
45
NE
50
ENE
50
ENE
45
ENE
50
ENE
40
E
30
E
30
ENE
30
ENE
25
ENE
35
ENE
30
ENE
25
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
High Tide
3:27AM0.36m
3:49PM0.71m
4:15AM0.41m
4:22PM0.64m
5:04AM0.45m
4:53PM0.55m
5:55AM0.48m
5:21PM0.47m
6:52AM0.50m
5:48PM0.38m
7:56AM0.52m
6:10PM0.31m
Low Tide
10:21PM0.04m
9:11AM0.01m
10:50PM0.04m
10:01AM0.07m
11:17PM0.04m
10:54AM0.13m
11:44PM0.05m
11:53AM0.20m
00:11AM0.05m
1:08PM0.25m
00:39AM0.07m
2:59PM0.27m
1:14AM0.09m
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
rain showers
cloud
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:01
7:00
7:00
7:00
6:59
6:58
 mm
1
2
4
16
5
1
Temp °C
26
26
26
26
26
26
26
26
26
26
25
25
25
26
26
25
26
26
25
Feels °C
24
23
23
23
22
22
23
22
22
21
21
20
24
25
25
23
23
24
24
  • 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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