Surf Forecasts:
Irmas/Leftpoint surf forecast from 16 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 2AM (local time) - 6.5ft (2.0m), 8s period, ENE swell with 460 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 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 Wednesday (Jul 15) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 19th Jul) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright, I’m Rusty, and here’s how it’s looking in feet and miles per hour.
First ten days? Dead. From Wednesday the 15th of July all the way to Friday the 25th, it’s a total washout. The wind is hammering from the east-northeast at 15 to 30 mph, either cross or cross-onshore, making everything choppy and lumpy. The wave comments say "poor surf conditions" every single time. There’s some energy in the water—moderate to strong at times—but it doesn’t matter with that wind.
Water temp at Irmas/Leftpoint is 79°, right on the money for this time of year. Nothing weird there.
Then, on Saturday the 25th of July afternoon, we finally get a "marginal" call. Swell around 3 ft from the east, with a long 15-second period. That’s groundswell, which works well for a reef point break. The combined energy is strong at 1326, but the wind is still moderate cross-shore, so expect a bit of chop.
Sunday the 26th of July stays marginal: 4 ft to 5 ft from the east, with 15 to 16-second periods. A lot of energy—2138 in the morning—but the wind is fresh cross-shore, so it’s lumpy.
The biggest swell comes Monday the 27th of July afternoon: 7 ft from the ENE, but only a short 7-second period. That’s a lot of water moving, but it’s windswell, so it’ll be fat and messy. At that size, it’s for experts only. Wind is still fresh cross-shore. The break is fairly consistent, and you might bump into a few others—crowd levels are "sometimes."
Honestly, the best bet in this whole run is Saturday the 25th afternoon with that long-period east swell, or Sunday the 26th morning for more energy. But don’t expect clean conditions. The wind doesn’t give us a break.
Hang in there.
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 24°C on Wed morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 24°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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 | SSW 16 | SSW 16 | SSW 17 | ENE 6 | ENE 7 | ENE 7 | SSW 14 | SSW 13 | SSW 14 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 14 | S 16 | S 15 | S 14 | S 14 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 114 | 79 | 314 | 173 | 261 | 186 | 165 | 170 | 215 | 141 | 213 | 460 | 350 | 284 | 243 | 142 | 321 | 271 | 329 | 307 | 277 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 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 | 7:46PM0.29m | ||||||||
Low Tide | 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 | 5:25PM0.28m | 3:12AM0.05m | |||||||
 | |  |  | | | | |  | | | | | | | | | |  | |  | |
 | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 26 | 25 | 25 | 25 | 23 | 24 | 23 | 23 | 23 | 24 | 24 | 23 | 22 | 23 | 22 | 24 | 23 | 23 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | NNE 8 | W 14 | NNE 7 | SW 14 | SW 16 | SSW 12 | SSW 14 | SSW 13 | E 7 | S 12 | S 12 | SSW 12 | S 18 | E 8 | S 16 | NE 7 | S 14 | S 14 | S 13 |
| kJ | 114 | 79 | 85 | 150 | 46 | 206 | 125 | 87 | 215 | 141 | 94 | 108 | 77 | 48 | 158 | 114 | 321 | 118 | 329 | 307 | 277 |
Swell 2 Height (m) Direction Period (s) | SW 13 | NNE 7 | SSW 16 | SSW 16 | SSW 17 | W 14 | SSW 12 | S 16 | NNE 7 | NNE 7 | SSW 14 | W 13 | NNE 7 | S 18 | SSW 12 | NNE 7 | SW 18 | S 15 | E 13 | E 13 | E 12 |
| kJ | 162 | 57 | 314 | 173 | 261 | 104 | 55 | 126 | 37 | 28 | 213 | 28 | 21 | 105 | 45 | 47 | 81 | 271 | 123 | 157 | 145 |
Swell 3 Height (m) Direction Period (s) | W 15 | SW 14 | W 15 | SSW 13 | SSW 13 | SSW 18 | W 14 | WNW 14 | W 13 | W 13 | NNE 7 | SSW 14 | S 19 | SW 20 | S 14 | S 14 | E 16 | E 7 | SW 17 | SW 16 | SSW 26 |
| kJ | 163 | 203 | 157 | 113 | 113 | 102 | 101 | 63 | 55 | 54 | 27 | 19 | 66 | 60 | 32 | 142 | 47 | 39 | 73 | 68 | 224 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 6 | E 6 | NE 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | — | ENE 7 | ENE 7 | ENE 7 |
| kJ | — | — | 75 | 127 | 95 | 186 | 165 | 170 | 101 | 94 | 58 | 460 | 350 | 284 | 243 | 38 | 169 | — | 203 | 191 | 147 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 49 | 18 | 49 | 49 | 49 | 49 | 50 | 18 | 49 | 49 | 51 | 49 | 49 | 18 | 18 | 49 | 18 | 22 | 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.
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