Surf Forecasts:
Irmas/Leftpoint surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 11AM (local time) - 7ft (2.1m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 2AM (local time) - 7.5ft (2.3m), 11s period, ENE swell with 1,211 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 11AM (local time) - 7ft (2.1m), 10s period with ENE swell.
Best Forecast Surf Conditions for Irmas/Leftpoint this week:
The surf forecast for Irmas/Leftpoint over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 11AM. The primary swell is predicted to be 2.1m and 10s period with a secondary swell of 0.5m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Irmas/Leftpoint in the next 16 days are 2.3m 11s and forecast to arrive on Wednesday (Jul 29) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Wednesday (Jul 29) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Wed 29th Jul) | 7ft (2.1m) 10s |
| Best Surf | 11AM (Wed 29th Jul) | 7ft (2.1m) 10s |
| Most Powerful | 2AM (Wed 29th Jul) | 7.5ft (2.3m) 11s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s happening at Irmas/Leftpoint for the next couple of weeks.
Right off the bat, I gotta be straight with you – this is a tough one. The 16-day window we’re staring at is mostly a dud, with a massive gap of poor surf. The only real blip of hope, and I mean the only one, is the very first session on the morning of Wednesday, July 29th. After that, it’s a long, bleak run of poor conditions that stretches all the way through the end of the forecast.
Wednesday, July 29th morning is your one and only shot. We’ve got a 7 ft easterly-northeasterly swell rolling in with a 10-second period, which gives it some decent shape for a reef setup like Irmas/Leftpoint. The combined energy is moderate at 939. What makes this the standout though is the wind: a light 15 km/h (9 mph) northerly blowing cross-offshore. That’s going to groom the faces clean, making for some proper, lined-up waves. It’s a classic early morning window where everything clicks. The water temperature is about average for this time of year, so nothing weird going on there.
Now, I’ve got to be honest – the rest of the outlook is a write-off. The wind swings onshore or cross-shore and cranks up from Thursday, July 30th, all the way through to the second week of August. We’re looking at strong breezes and messy, lumpy conditions. The swell hangs around, but it’s wrecked by the wind. By Saturday, August 1st, the swell even jumps up to 10 ft with a combined energy of 1580, but with 45 km/h (28 mph) winds, it’s an absolute washing machine – more of a kite-surfing setup than a paddle session.
Into the second week, things don’t improve. The wind just won’t let up, and the swell directions get a bit mixed up with some SSW pulses showing up, but they’re compromised by the same messy cross-shore wind. There’s no real saving grace here. The only other sessions that even get a marginal nod are the mornings of Tuesday, August 12th and Wednesday, August 13th, but the waves are small (around 3 ft) and the wind is still cross-on or cross-shore, making it a scrappy, low-quality affair.
So, to sum it up: if you’re keen, you’ve got one window – first light on Wednesday, July 29th. Get out there, because after that, the forecast is a long, dusty stretch of nothing good until at least the middle of August.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Tue night). Winds increasing (light winds from the NE on Wed afternoon, strong winds from the ENE by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Fri night, min 24°C on Fri night). Winds decreasing (strong winds from the ENE on Fri night, moderate winds from the ENE by Mon morning). | ||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | ENE 11 | ENE 10 | NE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 1211 | 782 | 505 | 291 | 318 | 234 | 365 | 427 | 484 | 1003 | 1145 | 1098 | 1051 | 801 | 801 | 666 | 442 | 407 | 1033 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 2:46AM0.24m | 3:28PM0.69m | 3:26AM0.26m | 3:57PM0.68m | 4:08AM0.30m | 4:25PM0.65m | 4:55AM0.33m | 4:53PM0.60m | 5:48AM0.38m | 5:22PM0.53m | 6:48AM0.43m | 5:53PM0.45m | |||||||
Low Tide | 10:25PM0.09m | 8:21AM0.00m | 10:49PM0.08m | 8:58AM0.02m | 11:13PM0.07m | 9:38AM0.05m | 11:37PM0.06m | 10:23AM0.11m | 00:02AM0.05m | 11:17AM0.16m | 00:29AM0.04m | 12:27PM0.23m | 00:59AM0.04m | ||||||
 |  | |  | |  | | | | | | | | | | | | | | |
 | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 7:10 | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 25 | 28 | 29 | 29 | 27 | 26 | 25 | 23 | 21 | 21 | 19 | 21 | 21 | 22 | 21 | 22 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 10 | NE 9 | ENE 8 | S 14 | ENE 8 | S 13 | E 15 | E 16 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | ENE 12 |
| kJ | 1211 | 782 | 505 | 291 | 181 | 234 | 166 | 216 | 301 | 267 | 264 | 257 | 260 | 333 | 261 | 126 | 121 | 187 | 1033 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | S 13 | S 14 | SSW 13 | SW 18 | S 13 | SSW 16 | S 13 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 12 | SSW 13 | SW 13 | SSW 12 |
| kJ | 195 | 87 | 192 | 133 | 154 | 225 | 177 | 115 | 239 | 223 | 129 | 123 | 131 | 133 | 68 | 39 | 53 | 41 | 56 |
Swell 3 Height (m) Direction Period (s) | SW 21 | S 15 | SSW 20 | N 7 | E 19 | SSW 18 | E 16 | SW 16 | S 12 | SSW 12 | S 12 | S 11 | S 11 | N 9 | N 9 | SSW 13 | SW 13 | SSW 12 | W 12 |
| kJ | 18 | 70 | 37 | 31 | 29 | 207 | 127 | 206 | 106 | 47 | 42 | 39 | 23 | 15 | 13 | 58 | 42 | 29 | 11 |
Wind waves Height (m) Direction Period (s) | NNE 9 | — | — | — | ENE 8 | — | ENE 7 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | — |
| kJ | 217 | — | — | — | 318 | — | 365 | 427 | 484 | 1003 | 1145 | 1098 | 1051 | 801 | 801 | 666 | 442 | 407 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 6 | 0 | 6 | 15 | 41 | 49 | 49 | 56 | 62 | 109 | 112 | 109 | 58 | 56 | 58 | 18 | 51 | 18 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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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