Surf Forecasts:
Irmas/Leftpoint surf forecast from 14 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 2AM (local time) - 6ft (1.9m), 8s period, ENE swell with 473 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 2AM. 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 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 | 2AM (Sun 19th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright, I’ll shoot it straight. This forecast is pretty grim for the next week at Irmas/Leftpoint. The wind is howling cross or cross-onshore from the east and northeast at 15–22 mph, and it’s kicking up a lumpy cross-chop that’s ruining any chance of clean waves. Swell is coming from the south-southwest and east-northeast, with heights mostly between 2 ft and 5 ft, but the period is all mixed — short, bumpy 6–8 second wind swell mixed with some longer 14–17 second groundswell. The combined energy is moderate to strong (148–668), but the wind’s just too messy. Not worth paddling out.
You’re looking at a dry spell until around Friday the 24th. That’s when conditions turn marginal. Friday morning shows 3 ft swell from the east with a long 17-second period, and combined energy jumps to 1050 — that’s strong energy. Wind is still cross from the east-northeast at 19 mph, so it’s not clean, but there’s a chance of a few rideable waves if you’re keen. By Friday afternoon, swell edges up to 4 ft, still east at 17 seconds, and energy hits 1240. Still cross wind, though.
Saturday the 25th is your standout window. Morning and afternoon both have 4 ft swell from the east with a 15-second period, and combined energy around 1043–1107. Wind is cross from the northeast at 16–19 mph, but it’s a moderate breeze, so the chop is a bit less aggressive. The swell direction (east) lines up well with the optimum ESE direction for Irmas/Leftpoint, and with that long period, the reef will shape things up nicely. It’s not glassy, but you’ll find some lined-up waves. Expect some company — crowds are possible here sometimes.
After Saturday, it fades back to poor or marginal from Sunday the 26th onward, with east swell hanging around 3–4 ft and 14-second period, but wind stays cross and fresh. Not much to shout about.
So here’s the call: skip this week, aim for Friday the 24th or Saturday the 25th, and Saturday looks like the better bet if you can handle a bit of cross breeze.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Tue afternoon. Warm (max 25°C on Wed morning, min 24°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Thu night, min 24°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Mon 20 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | SSW 14 | SSW 14 | SSW 13 | NE 7 | ENE 7 | SSW 16 | SSW 16 | SSW 17 | SSW 14 | ENE 6 | SSW 16 | E 6 | E 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 240 | 239 | 232 | 147 | 151 | 91 | 314 | 173 | 197 | 178 | 149 | 288 | 239 | 212 | 232 | 473 | 418 | 322 | 314 | 412 | 407 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross |
High Tide | 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 | 8:59AM0.45m | 7:13PM0.37m | |||||||
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 | 2:57PM0.28m | |||||||
 |  |  |  | | | | |  |  | | | | | | | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — |
 | 7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 |
mm | — | — | 1 | 2 | 2 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 24 | 25 |
Feels °C | 22 | 23 | 22 | 22 | 26 | 24 | 24 | 25 | 24 | 24 | 24 | 23 | 24 | 22 | 22 | 23 | 21 | 22 | 22 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 14 | NNE 7 | SSW 14 | NE 7 | NE 7 | ENE 7 | NNE 8 | NNE 7 | SSW 17 | SSW 14 | NNE 7 | SSW 16 | SSW 14 | NNE 7 | SSW 14 | S 12 | S 12 | SSW 13 | S 18 | S 16 | S 16 |
| kJ | 208 | 105 | 232 | 126 | 151 | 91 | 85 | 43 | 197 | 178 | 29 | 288 | 160 | 43 | 160 | 113 | 75 | 93 | 158 | 412 | 407 |
Swell 2 Height (m) Direction Period (s) | W 18 | E 8 | E 8 | E 7 | SW 13 | SW 14 | SSW 16 | W 14 | NNE 7 | W 14 | W 14 | N 8 | NNE 7 | S 14 | NNE 8 | NNE 8 | S 19 | S 18 | SSW 12 | SW 18 | SW 18 |
| kJ | 96 | 117 | 57 | 53 | 162 | 203 | 314 | 150 | 42 | 103 | 101 | 29 | 29 | 93 | 22 | 23 | 66 | 103 | 44 | 83 | 81 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 14 | W 16 | SSW 13 | W 15 | NNE 7 | W 15 | SSW 16 | SSW 13 | SSW 18 | SW 16 | W 14 | W 13 | W 13 | W 13 | W 13 | SSW 20 | NNE 8 | NNE 8 | W 11 | E 16 |
| kJ | 82 | 239 | 127 | 147 | 163 | 57 | 157 | 173 | 113 | 102 | 125 | 97 | 55 | 54 | 30 | 28 | 41 | 12 | 13 | 10 | 21 |
Wind waves Height (m) Direction Period (s) | ENE 8 | — | NE 7 | — | SE 4 | — | ENE 7 | ENE 6 | ENE 6 | ENE 7 | ENE 6 | ENE 6 | E 6 | E 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
| kJ | 240 | — | 160 | — | 4 | — | 79 | 98 | 119 | 175 | 149 | 170 | 239 | 212 | 232 | 473 | 418 | 322 | 314 | 256 | 220 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 18 | 49 | 18 | 16 | 49 | 6 | 49 | 56 | 49 | 49 | 49 | 49 | 56 | 56 | 49 | 49 | 50 | 18 | 49 | 49 |
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.
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