Surf Forecasts:
Irmas/Leftpoint surf forecast from 19 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 11AM (local time) - 6ft (1.8m), 12s period, ENE swell with 857 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 1.8m 12s and forecast to arrive on Thursday (Jul 23) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 18s period and expected on Monday (Jul 20) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 23rd Jul) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on offer for Irmas/Leftpoint over the next couple of weeks. Straight up – this is a lean stretch. The reef’s fairly consistent, but the wind and swell aren’t playing nice for most of it. There’s a real dry spell at the start, then a few days that might get you out, but nothing that’ll have you calling in sick.
The first recommendation doesn’t show up until Saturday 25 July. Before that – from Sunday 19 July through Friday 24 July – it’s all poor surf conditions: cross‑shore winds, lumpy chop, and messy lines. No point paddling out. That’s a solid six‑day gap with nothing to ride.
Saturday 25 July morning brings a slight improvement. You’ve got a 6.6 ft swell from the ENE, with a short 8‑second period, and a fresh cross‑shore breeze that keeps things lumpy. The combined energy is strong (1136), but the quality is still marginal – score of 1 out of 10. Afternoon drops to 3.0 ft SSW groundswell, so not much better.
Sunday 26 July morning sees a 3.6 ft E swell with a very long 17‑second period – that’s proper groundswell. Combined energy is strong (1604). But the wind is still cross‑shore from the ENE at 30
Short Range ForecastMostly dry. Warm (max 25°C on Sat night, min 24°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 25°C on Tue night, min 24°C on Fri morning). Mainly strong winds. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 | S 24 | SSW 23 | SSW 22 | ENE 12 | ENE 7 | SSW 18 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 472 | 350 | 284 | 306 | 329 | 321 | 339 | 329 | 307 | 277 | 404 | 426 | 480 | 857 | 527 | 480 | 653 | 603 | 572 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on |
High Tide | 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 | 12:42PM0.62m | 11:56PM0.19m | |||||||
Low Tide | 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 | 8:50PM0.15m | ||||||||
 |  | | | | | |  | |  | | | | | |  | | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — |
 | 7:15 | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 23 | 22 | 22 | 24 | 22 | 22 | 24 | 23 | 22 | 21 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | SSW 13 | S 18 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 | E 12 | E 11 | E 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
| kJ | 113 | 75 | 95 | 158 | 329 | 321 | 339 | 329 | 307 | 277 | 138 | 163 | 190 | 412 | 395 | 469 | 329 | 344 | 298 |
Swell 2 Height (m) Direction Period (s) | W 13 | S 19 | S 18 | SSW 12 | SW 18 | SW 18 | SW 16 | SW 17 | SW 16 | E 13 | S 13 | S 13 | S 13 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 |
| kJ | 28 | 117 | 105 | 45 | 83 | 81 | 69 | 72 | 68 | 119 | 128 | 212 | 157 | 68 | 90 | 55 | 103 | 69 | 293 |
Swell 3 Height (m) Direction Period (s) | S 20 | NNE 8 | SW 20 | S 14 | W 11 | W 12 | E 12 | E 12 | E 11 | SSW 26 | S 24 | SSW 23 | SSW 22 | SSW 16 | SW 16 | S 13 | SSW 15 | S 21 | S 12 |
| kJ | 32 | 12 | 60 | 32 | 10 | 11 | 12 | 25 | 39 | 224 | 404 | 426 | 480 | 100 | 127 | 55 | 89 | 231 | 68 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 12 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 472 | 350 | 284 | 306 | 263 | 272 | 191 | 158 | 200 | 227 | 153 | 177 | 261 | 857 | 527 | 480 | 653 | 603 | 572 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 51 | 49 | 113 | 18 | 18 | 49 | 18 | 49 | 49 | 49 | 49 | 56 | 49 | 56 | 56 | 56 | 58 | 58 | 49 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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