
Surf Forecasts:
Irmas/Leftpoint surf forecast from 13 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 11AM (local time) - 6ft (1.9m), 8s period, ENE swell with 416 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 1.9m 8s and forecast to arrive on Sunday (Jul 19) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Tuesday (Jul 14) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sun 19th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s get into it.
Well, I gotta be straight with you – Irmas/Leftpoint is the only spot on the menu for the next 16 days, and it’s a tough pill to swallow. The whole outlook is a bit of a grind, with a long stretch of poor conditions. The water’s sitting at 79°, which is about normal for the time of year, but that’s about the only thing that’s average.
We start off with a real dud. From Monday the 13th right through to the 22nd of July, it’s mostly cross-shore and cross-onshore winds, blowing 9 to 22 mph, and the swell is a mess – short-period, lumpy, and choppy. There’s a couple of days where a long-period 16-second swell rolls in, but it’s tiny and the wind is still junk. Honestly, it’s not worth paddling out for anything better than a frustrating session.
The first real glimmer of hope comes on Wednesday the 22nd of July. The swell picks up to 5 ft from the ENE, but the wind is still cross-shore from the NE at 16 mph. The combined energy hits 672 (moderate), and the wave comment says “marginal” – it’s a maybe, but you’d be fighting a bumpy surface.
Then, the real standout is on Monday the 27th of July. This is the one to circle. We’ve got a 4 ft to 4 ft swell from the east, but the period jumps to 15 seconds – that’s proper groundswell. The combined energy is 971-1018 (moderate to strong). The wind is a moderate cross-shore from the NE at 12 mph, which is workable. Best of all, it’s a reef break, and that long period will wrap in nicely, giving it some shape. It’s a point break setup, so it should handle the long period better than a beach. It’s still a “marginal” call, but this is the best the whole outlook has to offer.
The very last day, Tuesday the 28th of July, also looks promising. Swell hits 7 ft from the ENE, with a 13-second period and combined energy of 1684 (strong). That’s a solid wave, but it’s getting sizable – might be pushing it for beginners. The cross-shore wind at 16 mph is still a factor, but if you’re an experienced surfer, this could be a blast.
Crowds can be an issue here – it’s “sometimes” busy, so you might have some company on those better days. The optimum swell direction is ESE, and the bigger swells are coming from the ENE, so it’s close but not a perfect match.
So, to sum it up: the first week and a half is a write-off. The 27th and 28th of July are your best bets. The 27th is the standout for me – cleaner, long-period groundswell, and moderate energy. The 28th is bigger, but a bit messier. Get out there if you can, but be patient.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Tue night. Warm (max 25°C on Mon afternoon, min 24°C on Mon morning). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu morning. Warm (max 25°C on Thu morning, min 24°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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 8 | ENE 8 | ENE 7 | NE 8 | NE 8 | SSW 17 | ENE 7 | ENE 7 | SSW 16 | SSW 16 | NE 7 | ENE 7 | ENE 7 | SSW 16 | S 15 | E 7 | ENE 7 | E 7 | ENE 8 | ENE 8 | ENE 7 |
Wave Graph | |||||||||||||||||||||
372 | 292 | 279 | 248 | 244 | 197 | 173 | 91 | 314 | 173 | 65 | 230 | 230 | 288 | 155 | 240 | 350 | 315 | 416 | 353 | 192 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 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 | 6:37AM0.35m | 6:10PM0.55m | 7:46AM0.40m | 6:42PM0.45m | ||||||||
Low Tide | 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 | 11:55AM0.16m | 1:26AM0.03m | 1:10PM0.23m | 1:58AM0.03m | ||||||||
5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | |
mm | — | — | — | 1 | 2 | 3 | 4 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 24 |
Feels °C | 20 | 23 | 22 | 23 | 22 | 22 | 24 | 26 | 24 | 25 | 25 | 24 | 23 | 23 | 24 | 23 | 22 | 22 | 20 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 15 | SW 14 | SW 14 | SSW 14 | NE 7 | ENE 7 | ENE 7 | E 7 | NNE 7 | NE 7 | SSW 14 | W 14 | SSW 16 | S 15 | SSW 9 | SSW 14 | S 12 | SSW 12 | S 13 | SSW 11 |
326 | 272 | 208 | 191 | 232 | 140 | 173 | 91 | 92 | 43 | 65 | 183 | 101 | 288 | 155 | 48 | 160 | 80 | 48 | 84 | 41 | |
Swell 2 Height (m) Direction Period (s) | SSE 12 | W 14 | W 18 | W 16 | W 16 | SSW 13 | SW 13 | NNE 7 | NNE 8 | W 14 | E 6 | W 14 | SSW 16 | NNE 7 | N 7 | NNE 8 | SSW 10 | SSW 9 | SW 8 | S 18 | S 18 |
27 | 61 | 96 | 127 | 127 | 147 | 162 | 57 | 89 | 150 | 58 | 104 | 100 | 30 | 26 | 34 | 52 | 29 | 17 | 101 | 96 | |
Swell 3 Height (m) Direction Period (s) | W 12 | SSE 11 | SW 18 | SSW 19 | SW 19 | SSW 17 | W 15 | SW 14 | SSW 16 | SSW 16 | NNE 7 | SSW 18 | SW 12 | W 14 | SSW 10 | S 14 | W 13 | NNE 8 | S 19 | NNE 8 | NNE 8 |
11 | 25 | 82 | 146 | 94 | 197 | 163 | 206 | 314 | 173 | 42 | 60 | 35 | 97 | 42 | 94 | 30 | 19 | 66 | 12 | 12 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | NE 8 | NE 8 | E 7 | — | — | — | ENE 6 | — | ENE 7 | ENE 7 | ENE 6 | ENE 6 | E 7 | ENE 7 | E 7 | ENE 8 | ENE 8 | ENE 7 |
372 | 292 | 279 | 248 | 244 | 69 | — | — | — | 144 | — | 230 | 230 | 170 | 135 | 240 | 350 | 315 | 416 | 353 | 192 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 49 | 18 | 18 | 49 | 18 | 6 | 41 | 41 | 49 | 56 | 49 | 49 | 50 | 50 | 56 | 56 | 49 | 49 | 49 | 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.










