
Surf Forecasts:
Irmas/Leftpoint surf forecast from 11 Jul 2026:
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 7.5ft (2.3m), 7s period, ENE swell with 588 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 2.3m 7s and forecast to arrive on Monday (Jul 13) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 17s period and expected on Sunday (Jul 12) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Mon 13th Jul) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
Alright, let’s break this down for the next couple of weeks. I’m looking at Irmas/Leftpoint, and I’ll be honest, it’s a rough patch. The forecast is all about ENE wind, mostly cross or cross-onshore, and that’s gonna chop up the surface real bad. The water temp is about 79°, which is normal for this time of year.
From Saturday the 11th through Tuesday the 15th, it’s a total write-off. The swell is there, but it’s short-period, messy, and the wind is howling at 18–25 mph from the ENE. That’s creating a nasty cross-chop. The combined swell energy is moderate (764) on the morning of the 11th, but with the wind, the waves are just too lumpy. No good for paddling out.
The middle of the week, from the 16th to the 19th, ain’t much better. The swell drops, and we get a mix of weak, short-period ENE swell and some long-period SSW groundswell on the 16th (16–17 seconds, 314–418 energy). That’s a tease, because the wind is still cross and fresh, so the surface will be a mess. It’s a beach-and-reef setup, so that long-period stuff might be too straight for the beach break anyway. Honestly, this is looking more like a kite session than a surf session.
Now, there’s a glimmer of hope right at the end. On the 20th and 21st, we see a long-period E swell coming in (19 seconds on the 20th, 16 seconds on the 21st), with combined energy climbing into the 800–900 range. If the wind ever eases off, that could be a serious groundswell. But the wind is still ENE at 18–22 mph, crossing it up, so it’s a bit of a promise without the delivery. The 23rd and 24th throw in some more SSW groundswell with periods up to 20 seconds, but again, the wind is doing its usual cross nonsense.
The last few days, from the 25th to the 26th, show a bit more ENE swell (6ft–6ft), but it’s short-period (6–7 seconds) and the wind is still cross. It’s not going to be clean.
The standout for the whole period? It’s a tough call because nothing is really shining. If I had to pick one moment, it’s the morning of the 23rd—that long-period SSW groundswell at 20 seconds and 707 energy, with the swell height only 2ft. That’s a very clean, straight line swell, but it’s tiny. For the experts, that could be a fun, glassy-ish session if the wind holds lighter. But don’t get your hopes up too high.
Overall, it’s a long, frustrating 16 days here. The wind just won’t give us a break. We’ve got a 10-day gap where I wouldn’t recommend paddling out.
- Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Mainly strong winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed morning. Warm (max 25°C on Tue afternoon, min 24°C on Tue morning). Winds increasing (light winds from the E on Wed night, strong winds from the ENE by Thu night). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
AM | 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) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | NE 8 | SSW 17 | ENE 7 | ENE 7 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | ENE 6 | ENE 6 | SSW 15 |
Wave Graph | |||||||||||||||||||||
499 | 400 | 373 | 516 | 459 | 481 | 411 | 355 | 294 | 142 | 255 | 261 | 134 | 96 | 314 | 175 | 261 | 191 | 100 | 181 | 169 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross-on |
High Tide | 1:24PM0.77m | 00:55AM0.18m | 2:10PM0.81m | 1:53AM0.19m | 2:55PM0.82m | 2:47AM0.21m | 3:38PM0.81m | 3:40AM0.23m | 4:19PM0.78m | 4:35AM0.27m | 4:58PM0.72m | 5:33AM0.31m | 5:35PM0.64m | ||||||||
Low Tide | 9:12PM0.08m | 6:39AM-0.08m | 9:53PM0.05m | 7:31AM-0.09m | 10:32PM0.03m | 8:22AM-0.08m | 11:09PM0.02m | 9:12AM-0.05m | 11:45PM0.02m | 10:02AM0.01m | 00:20AM0.02m | 10:55AM0.08m | 00:53AM0.03m | ||||||||
5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 21 | 23 | 23 | 24 | 26 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | E 8 | SW 14 | NE 8 | ENE 7 | ENE 7 | NE 7 | NNE 7 | SSW 17 | NNE 7 | NNE 7 | W 14 | SSW 15 |
221 | 316 | 309 | 381 | 367 | 353 | 291 | 272 | 208 | 138 | 186 | 143 | 134 | 96 | 156 | 48 | 261 | 54 | 30 | 97 | 169 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 13 | SSE 12 | SSE 12 | SSE 12 | W 14 | W 18 | NNE 8 | W 16 | E 7 | SW 13 | NNE 8 | SSW 16 | W 14 | NNE 7 | SSW 15 | W 14 | S 16 | NNE 7 |
44 | 44 | 23 | 29 | 28 | 28 | 27 | 35 | 96 | 142 | 127 | 53 | 164 | 60 | 314 | 150 | 42 | 191 | 100 | 126 | 30 | |
Swell 3 Height (m) Direction Period (s) | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | SSW 20 | SSE 11 | SW 18 | SW 14 | SW 19 | SSW 17 | W 15 | SW 14 | W 15 | SSW 16 | W 14 | W 14 | SW 16 | SSW 12 | WNW 13 |
63 | 31 | 30 | 28 | 26 | 26 | 39 | 25 | 82 | 191 | 94 | 261 | 163 | 206 | 157 | 175 | 148 | 103 | 125 | 56 | 59 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | NE 8 | — | — | — | — | E 6 | E 6 | E 6 | ENE 6 | ENE 6 | ENE 6 |
499 | 400 | 373 | 516 | 459 | 481 | 411 | 355 | 294 | 72 | 255 | — | — | — | — | 91 | 115 | 92 | 100 | 181 | 143 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 56 | 56 | 56 | 56 | 58 | 49 | 49 | 51 | 18 | 46 | 49 | 31 | 6 | 6 | 4 | 49 | 49 | 56 | 56 | 56 | 50 |
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.










