
Surf Forecasts:
Irmas/Leftpoint surf forecast from 1 Aug 2026:
- Best quality surf: Thursday 6 Aug, 5AM (local time) - 3.5ft (1.0m), 8s period, ENE swell with glassy winds.
- Most powerful swell: Saturday 1 Aug, 11AM (local time) - 11ft (3.5m), 8s period, ENE swell with 1,500 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 5AM (local time) - 3.5ft (1.0m), 8s 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 Thursday (Aug 06) at 5AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.4m and 15s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Irmas/Leftpoint in the next 16 days are 3.5m 8s and forecast to arrive on Saturday (Aug 01) 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 0.7m 15s period and expected on Saturday (Aug 01) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 6th Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 5AM (Thu 6th Aug) | 3.5ft (1.0m) 8s |
| Most Powerful | 11AM (Sat 1st Aug) | 11ft (3.5m) 8s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright, let’s get into it. I’m lookin’ at a solid 16-day window, but I gotta be straight with you—this is a rough stretch for surf at Irmas/Leftpoint (reef break). The whole forecast period is basically a write-off. We’ve got a persistent ENE wind blowing across the break, keeping things messy and cross-choppy, and the swell is mostly short period, around 7 to 8 seconds, which is weak, wind-affected junk. The combined energy values are moderate at best, reaching 1674 on the first Saturday morning, but that’s all wind strength, not quality.
From Saturday 1 August through to about Tuesday 4 August, the swell is big, between 5ft and 12ft, but it’s a short-period ENE windswell, cross to cross-onshore, with strong breezes. The water temperature is about average for the time of year, so nothing to get excited about. Conditions are just poor—lots of chop, no shape, and it’s actually too big for beginners, but not clean enough for anyone really. The wind is 40 to 45 km/h (25 to 28 mph), so it’s more like kite-surfing weather than surf.
By Wednesday 5 August, the swell drops to 4ft, but the wind stays cross-on or cross, and it’s still a weak, short-period swell. You’re looking at a gap of several days where nothing is worth paddling out. Thursday 6 August morning has a tiny 1ft SSW swell with a 14-second period, but the wind is light and cross, so you might get a few cleanish rollers, but the size is next to nothing. The energy is very low at 186.
From Friday 7 August through to Sunday 16 August, it’s a stuck record: ENE wind, 25 to 35 km/h (15 to 22 mph), fresh breeze, cross or cross-on, with swell heights mostly 2ft to 6ft, short period, again windswell. There’s a brief tease on Monday 10 August and Tuesday 11 August with a couple of long-period SSW swells (15 to 16 seconds), but the swell size is tiny (2ft to 3ft) and the wind is still fresh and cross, so it’s lumpy and not worth the paddle. The energy is moderate at best, around 557 to 599. The later days, from 12 August onward, have a slight shift to S and SSW swells with longer periods (14 to 19 seconds), but the swell is tiny—2ft to 3ft—and the wind stays strong and cross.
I can’t recommend a single standout window here. The whole 16 days is a bust for quality surf. The spot is fairly consistent, but with this wind regime, it’s just not happening. Forecasts can change, but right now, it’s a blank run. I’d say leave the board at home.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 25°C on Fri night). Winds decreasing (strong winds from the ENE on Sat morning, moderate winds from the NE by Mon afternoon). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 26°C on Tue afternoon, min 25°C on Mon night). Winds decreasing (fresh winds from the ENE on Mon night, calm by Wed night). | ||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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) | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | ENE 8 | SSW 14 | ENE 8 | ENE 6 |
Wave Graph | |||||||||||||||||||
1350 | 1500 | 1026 | 1193 | 801 | 699 | 650 | 457 | 339 | 770 | 643 | 487 | 411 | 289 | 218 | 134 | 82 | 147 | 61 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on |
High Tide | 4:55AM0.33m | 4:53PM0.60m | 5:48AM0.38m | 5:22PM0.53m | 6:48AM0.43m | 5:53PM0.45m | 7:57AM0.48m | 6:26PM0.37m | 9:10AM0.55m | 7:10PM0.29m | 10:22AM0.61m | 8:39PM0.22m | |||||||
Low Tide | 11:37PM0.06m | 10:23AM0.11m | 00:02AM0.05m | 11:17AM0.16m | 00:29AM0.04m | 12:27PM0.23m | 00:59AM0.04m | 2:07PM0.27m | 1:37AM0.03m | 4:33PM0.27m | 2:24AM0.02m | 6:43PM0.21m | 3:25AM0.02m | ||||||
— | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
7:09 | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — |
Temp °C | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 20 | 22 | 20 | 21 | 21 | 21 | 22 | 23 | 24 | 23 | 25 | 26 | 27 | 28 | 27 | 27 | 30 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | SSW 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | SSW 15 | ENE 8 | ENE 6 | ENE 8 | ENE 6 |
223 | 127 | 257 | 249 | 242 | 189 | 125 | 119 | 106 | 48 | 643 | 487 | 411 | 289 | 88 | 134 | 46 | 147 | 61 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 12 | SSW 13 | SSW 12 | SSE 9 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | S 12 | ENE 8 | SSW 14 | ENE 7 |
72 | 42 | 123 | 131 | 133 | 68 | 40 | 53 | 50 | 8 | 46 | 42 | 47 | 47 | 39 | 75 | 58 | 81 | 37 | |
Swell 3 Height (m) Direction Period (s) | N 8 | S 16 | S 11 | S 11 | N 9 | N 9 | SSW 13 | SW 13 | SW 13 | S 13 | SSE 12 | SW 16 | SW 15 | SW 16 | SSE 12 | SW 14 | SSW 14 | SSE 11 | SW 14 |
12 | 5 | 39 | 23 | 15 | 14 | 58 | 42 | 42 | 13 | 30 | 68 | 57 | 61 | 49 | 54 | 82 | 24 | 102 | |
Wind waves Height (m) Direction Period (s) | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | — | — | — | — | ENE 9 | — | — | — | — |
1350 | 1500 | 1026 | 1193 | 801 | 699 | 650 | 457 | 339 | 770 | — | — | — | — | 218 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 113 | 110 | 109 | 58 | 62 | 139 | 49 | 22 | 51 | 18 | 18 | 6 | 18 | 6 | 6 | 6 | 6 | 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.











