
Surf Forecasts:
Irmas/Leftpoint surf forecast from 24 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 2PM (local time) - 8ft (2.5m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8AM (local time) - 10ft (3.0m), 11s period, ENE swell with 2,372 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 2PM (local time) - 8ft (2.5m), 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 2PM. The primary swell is predicted to be 2.5m and 10s period with a secondary swell of 0.6m and 13s. Another secondary swell of 0.5m and 4s is also forecast. 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 3.0m 11s and forecast to arrive on Wednesday (Jul 29) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 18s period and expected on Thursday (Jul 30) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 29th Jul) | 8ft (2.5m) 10s |
| Best Surf | 2PM (Wed 29th Jul) | 8ft (2.5m) 10s |
| Most Powerful | 8AM (Wed 29th Jul) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Right, I’ve had a look at the charts for Irmas/Leftpoint, and it’s a bit of a tough stretch coming up. Don’t get me wrong, there’s plenty of swell in the water, but the wind is really going to be the enemy here for most of the next sixteen days.
Irmas/Leftpoint is a reef setup, and we’re looking at a long run of strong east-northeast winds. For the first week, starting Thursday the 23rd through to the end of the month, we’re seeing a lot of cross and cross-on conditions with the wind pumping at 18 to 25 mph. That’s going to chop things up badly. The water temp is sitting at 80°F, which is pretty normal for this time of year, so at least you won’t be freezing while you’re getting blown off your board.
The first real sign of life comes on Tuesday the 28th. The morning sees a nice 8ft east-northeast swell with a 12-second period, and the wind swings around to a cross-offshore from the north-northeast at 18 mph. That’s the cleanest window we’ve got. The combined energy from all swells is pumping in at 1712, which is a lot of muscle. That afternoon holds up too, with a 6ft easterly swell and cross-off winds. The sets will be a bit more powerful and lined up, but those long period waves (12 seconds) can make the reef a bit more critical. It’s not a beginner wave that day, but for an intermediate, it’s the best on offer.
After that, the wind goes to hell again. We get a proper onshore blow from the south-southeast on the 29th, with a 10ft mid-period swell, but that’s just a stormy mess. The swell is too big for beginners and the wind is straight onshore, so it’s a write-off. The next few days are just more of the same – consistent east-northeast swell but with strong cross-shore winds.
We finally get another chance on Wednesday the 5th of August. The morning sees a 7ft east-northeast swell with a 12-second period, and the wind is a moderate cross-shore from the northeast at 15 mph. It’s not perfect, but it’s a sight better than what we’ve been getting. The combined energy is strong at 1447, and the afternoon holds a similar 7ft swell from the northeast. The surf quality will be lumpy, but at least rideable. The north-east wind direction is right on the optimum for this break, so it’s a promising option, even if it’s a week and a half out.
Honestly, for the whole stretch, Tuesday the 28th is the standout. If you can get out that morning, you’ll have the best chance of a clean, powerful reef wave. The 5th of August is a solid backup, but it’s way off in the distance, so keep an eye on the forecasts. For the rest of the time, it’s a battle against the wind.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 25°C on Thu afternoon, min 24°C on Thu night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Warm (max 26°C on Tue afternoon, min 24°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
PM | 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) | SSW 20 | SSW 18 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | SSW 18 | ENE 8 | ENE 8 | E 14 | E 14 | E 13 | E 13 | ENE 12 | E 12 | E 13 | ENE 12 | ENE 10 | ENE 9 | ENE 8 |
Wave Graph | ||||||||||||||||||||
395 | 623 | 446 | 459 | 512 | 452 | 572 | 575 | 469 | 492 | 530 | 595 | 569 | 1523 | 738 | 1173 | 1613 | 1941 | 984 | 418 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-on | cross-on |
High Tide | 10:38PM0.19m | 12:42PM0.62m | 11:56PM0.19m | 1:20PM0.64m | 00:50AM0.19m | 1:55PM0.66m | 1:32AM0.20m | 2:28PM0.68m | 2:09AM0.22m | 2:58PM0.69m | 2:46AM0.24m | 3:28PM0.69m | 3:26AM0.26m | |||||||
Low Tide | 8:24PM0.18m | 8:50PM0.15m | 5:38AM0.03m | 9:14PM0.12m | 6:24AM0.02m | 9:38PM0.11m | 7:06AM0.01m | 10:01PM0.09m | 7:44AM-0.00m | 10:25PM0.09m | 8:21AM0.00m | 10:49PM0.08m | ||||||||
— | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 2 | 3 | 6 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 25 | 25 | 26 | 26 |
Feels °C | 21 | 22 | 21 | 21 | 22 | 22 | 22 | 21 | 22 | 23 | 22 | 23 | 23 | 21 | 24 | 25 | 24 | 25 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | E 15 | E 14 | E 14 | E 13 | E 13 | SSW 14 | E 12 | E 13 | ENE 12 | ENE 10 | ENE 9 | ENE 8 |
395 | 623 | 329 | 428 | 298 | 391 | 572 | 547 | 348 | 492 | 530 | 595 | 569 | 213 | 738 | 1173 | 1613 | 1941 | 984 | 418 | |
Swell 2 Height (m) Direction Period (s) | E 11 | S 11 | S 12 | S 12 | S 20 | SSW 16 | E 13 | E 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSE 10 | SSW 14 | S 14 | SSW 14 | S 13 | S 14 | SSW 13 |
116 | 56 | 103 | 100 | 296 | 223 | 84 | 109 | 469 | 452 | 333 | 228 | 222 | 11 | 143 | 179 | 147 | 87 | 192 | 133 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 13 | SSW 15 | S 21 | S 12 | S 11 | S 11 | E 12 | S 11 | S 10 | S 10 | S 10 | S 10 | NNE 10 | SSE 10 | — | S 10 | SSW 15 | SSW 20 | SSE 5 |
125 | 85 | 152 | 231 | 98 | 63 | 61 | 47 | 9 | 18 | 8 | 8 | 8 | 64 | 10 | — | 7 | 75 | 37 | 15 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | ENE 12 | NE 7 | NNE 7 | NNE 7 | SSE 4 | SSE 4 | — |
285 | 385 | 446 | 459 | 512 | 452 | 477 | 575 | 429 | 382 | 376 | 301 | 284 | 1523 | 178 | 209 | 210 | 11 | 9 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 56 | 58 | 50 | 58 | 64 | 49 | 51 | 109 | 49 | 56 | 56 | 49 | 49 | 51 | 49 | 20 | 49 | 6 | 57 | 57 |
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.










