
Surf Forecasts:
Irmas/Leftpoint surf forecast from 15 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 5AM (local time) - 6.5ft (2.0m), 8s period, ENE swell with 449 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 2.0m 8s and forecast to arrive on Sunday (Jul 19) at 5AM. 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 13s period and expected on Tuesday (Jul 14) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sun 19th Jul) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
Right off the bat, I’ve got to be straight with you – this outlook is a tough one. We’ve only got one break on the menu, Irmas/Leftpoint, and for the next week and a half, it’s looking pretty grim. The wind is stuck in a cross or cross-on pattern, mostly from the ENE, and it’s blowing a solid 15 to 22 mph. That’s creating a lumpy, choppy mess. The first actual surf recommendation doesn’t show up until the morning of July 24th, and even then it’s only a 1 out of 10, described as marginal. So we’re looking at a long, dry gap of about 10 days with no real surf to speak of.
Let’s break it down. The water temp is sitting at 79°F with a tiny anomaly of 0.2°, so that’s totally average for the time of year. No surprises there.
From July 14th all the way through July 23rd, every single session is rated zero. The swell is all over the place – short-period junk from the NE and ENE, mixed with some longer-period SSW pulses that look good on paper but the wind absolutely ruins it. The combined swell energy is moderate to strong (values in the 400s to 700s), but it’s all wasted energy. It’s like having a full tank of gas in a car with four flat tyres.
The best we’ve got is the morning of July 24th. It’s still not great, with a score of just 1 out of 10, but it’s the first glimmer we see. The swell is 2 ft from the SSW, with a very long period of 18 seconds. That’s a proper groundswell. The combined energy is strong at 759. The wind is still cross-shore from the ENE, but it’s a moderate 15 mph, so it’s not as nasty as the fresh breeze we’ve been dealing with. The wave comment says “marginal surf forecast or questionable tide conditions,” so it’s a gamble. But if you’re desperate, this is the moment to paddle out. The long period means it’s best for a reef setup like this, but it could break a bit straight.
After that, things improve slightly. July 26th and 27th see the swell bump up to 4 ft to 4 ft from the E, with a solid 16-second period. The combined energy jumps into the four-digit range (1036 to 1072), which is strong. Still, the wind is a fresh cross-shore from the ENE at 19-22 mph, keeping things lumpy. These are marginal days, scoring 1 out of 10.
The best of the whole outlook, and the only one that gets a score of 2, is a small window on the morning of July 29th. The swell is 4 ft from the ENE with a 12-second period, combined energy of 524. The wind drops to a light breeze, just 6 mph from the ENE, which is still cross-shore but much cleaner. The wave comment says “marginal surf forecast or questionable tide conditions,” but the light wind makes it the most rideable day of the whole 16-day run. It’s not a standout by any stretch, but it’s the best we’ve got.
Irmas/Leftpoint is a fairly consistent reef break that’s exposed to the ESE, and it’s an intermediate wave. Crowds are possible here, so keep an eye out. But honestly, with the wind howling the way it is, this setup might honestly be more interesting for kite surfing than paddle surfing for most of the period.
Keep your hopes up, though. The consistency of the break means it usually doesn’t stay this poor for long, and forecasts can change.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Warm (max 25°C on Tue afternoon, min 24°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tue 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 17 | ENE 7 | ENE 7 | SSW 16 | E 6 | SSW 17 | SSW 14 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | E 7 | E 7 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | S 15 | S 14 |
Wave Graph | |||||||||||||||||||||
232 | 197 | 134 | 101 | 314 | 91 | 261 | 178 | 154 | 196 | 186 | 155 | 208 | 447 | 353 | 284 | 223 | 257 | 321 | 279 | 329 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross |
High Tide | 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 | 10:08AM0.51m | |||||||
Low Tide | 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 | 2:33AM0.04m | ||||||||
— | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | |
7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | 7:14 | |
mm | — | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 25 | 26 | 26 | 24 | 25 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 20 | 22 | 22 | 23 | 23 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 8 | ENE 7 | ENE 7 | SSW 16 | E 6 | SSW 17 | SSW 14 | W 14 | SSW 16 | SSW 14 | S 13 | E 7 | SSW 12 | S 12 | S 13 | ENE 8 | S 16 | S 16 | E 7 | S 14 |
160 | 129 | 134 | 101 | 314 | 91 | 261 | 178 | 100 | 196 | 160 | 130 | 208 | 123 | 75 | 85 | 223 | 257 | 321 | 86 | 329 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 13 | SW 13 | SW 14 | NNE 8 | NNE 7 | NNE 7 | W 14 | SW 16 | W 14 | WNW 13 | NNE 7 | SSW 14 | W 13 | S 19 | S 18 | NNE 8 | SSW 11 | SW 18 | NE 7 | SW 17 |
232 | 170 | 162 | 203 | 67 | 43 | 42 | 103 | 125 | 97 | 59 | 26 | 160 | 28 | 66 | 105 | 34 | 47 | 81 | 77 | 73 | |
Swell 3 Height (m) Direction Period (s) | E 8 | SSW 17 | W 15 | NNE 7 | W 15 | W 14 | W 14 | NNE 7 | SSW 12 | SSW 12 | SW 16 | W 13 | NNE 7 | S 20 | W 12 | SW 20 | SSW 12 | NNE 8 | SSW 10 | S 15 | E 13 |
57 | 197 | 163 | 52 | 157 | 150 | 148 | 31 | 55 | 55 | 62 | 54 | 29 | 32 | 11 | 60 | 44 | 22 | 19 | 279 | 32 | |
Wind waves Height (m) Direction Period (s) | — | E 7 | SE 5 | — | ENE 7 | — | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | E 7 | ENE 8 | ENE 8 | ENE 6 | ENE 7 | ENE 7 | — | ENE 7 |
— | 53 | 6 | — | 79 | — | 119 | 139 | 154 | 170 | 186 | 155 | 121 | 447 | 353 | 284 | 56 | 191 | 214 | — | 158 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 15 | 6 | 6 | 31 | 49 | 49 | 49 | 49 | 56 | 49 | 50 | 49 | 49 | 49 | 49 | 18 | 49 | 49 | 18 | 41 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Live Wind Speed (km/h)
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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.











