
Surf Forecasts:
Irmas/Leftpoint surf forecast from 8 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8AM (local time) - 20ft (6.0m), 14s period, E swell with 14,041 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 6.0m 14s and forecast to arrive on Saturday (Aug 15) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 19s period and expected on Saturday (Aug 08) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 15th Aug) | 20ft (6.0m) 14s |
Table - best surf conditions forecast for Irmas/Leftpoint over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.
Honestly, it's a tough one to call. The only spot that's even in the conversation is Irmas/Leftpoint, but the conditions are fighting it every step of the way. The water is sitting at 80°, which is pretty much bang on average for this time of year.
We kick off Saturday the 8th of August, but it's a no-go. A lumpy 5ft cross-shore chop from the ENE with a weak 6-second period and a fresh breeze makes for a messy session. That combined energy is only 303, which is weak. The pattern pretty much holds through the first week. Sunday the 9th has a brief pulse of 2ft SSW swell with a very long 17-second period, giving a solid energy reading of 600, but it's still crossed out by a 19 mph NE wind. Monday and Tuesday are more of the same: small, choppy, cross-shore slop. Wednesday the 12th sees a bit of a jump in energy with a 3ft S swell and an 18-second period, pushing that energy to 964, but the wind is still a mess.
Thursday the 13th and Friday the 14th get ugly. The wind ramps up to a strong breeze and then a near gale, with the swell on Friday hitting 8ft to 10ft from the ENE. The energy jumps to 1299 and 1645, but the wind is howling. This is a beach-and-reef setup, and with that kind of wind and chop, it's looking more like a kite-surfing day than a paddle session.
Now, hold onto your boards for Saturday the 15th of August. The models are throwing up some wild numbers. We're looking at 23ft of swell on Saturday morning with a 13-second period, and it jumps to 36ft in the afternoon with a 14-second period. The energy readings are off the charts—18436 and 45697. That is massive, powerful, groundswell energy. The wind drops to a moderate breeze, but it's still cross-onshore. The system says the wind and tide are favorable, but the swell is simply too big for this break. This is expert-only territory, and even then, it's a question of whether it's even rideable. For the average surfer, it's a spectator event.
After that bomb, things settle down but don't clean up. Sunday the 16th still has an 12ft swell with a 10-second period, but it's choppy and crossed out. The rest of the second week, from the 17th to the 23rd, is a long grind of 4ft to 6ft ENE windswell with 6 to 8-second periods, all under a constant cross-shore breeze. The energy readings are in the moderate range of 200 to 800, but the conditions are consistently poor.
The standout window is really the 15th of August, but it's a beast that's too big for its own good. If you're an absolute charger with a big gun and a death wish, that's your day. For everyone else, it's a two-week wait for something that just isn't going to happen.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 25°C on Sat morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 25°C on Tue afternoon). Mainly strong winds. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 6 | ENE 7 | ENE 6 | SSW 17 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | SSW 14 | S 20 | S 18 | S 18 | S 16 | S 16 | S 15 | ENE 7 | ENE 8 | ENE 8 | ENE 15 |
Wave Graph | |||||||||||||||||||||
165 | 189 | 145 | 246 | 296 | 392 | 292 | 292 | 355 | 238 | 269 | 268 | 509 | 613 | 520 | 501 | 653 | 621 | 883 | 1074 | 9250 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 12:21PM0.73m | 00:00AM0.20m | 1:10PM0.77m | 1:01AM0.23m | 1:55PM0.79m | 1:52AM0.27m | 2:36PM0.79m | 2:40AM0.31m | 3:14PM0.76m | 3:27AM0.36m | 3:49PM0.71m | 4:15AM0.41m | 4:22PM0.64m | ||||||||
Low Tide | 8:16PM0.11m | 5:38AM-0.02m | 8:50PM0.08m | 6:37AM-0.03m | 9:21PM0.06m | 7:31AM-0.04m | 9:52PM0.05m | 8:22AM-0.02m | 10:21PM0.04m | 9:11AM0.01m | 10:50PM0.04m | 10:01AM0.07m | 11:17PM0.04m | ||||||||
6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 26 | 26 |
Feels °C | 24 | 22 | 23 | 25 | 24 | 23 | 25 | 24 | 24 | 25 | 23 | 23 | 23 | 22 | 23 | 23 | 21 | 21 | 20 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | E 7 | SSW 17 | SSW 12 | S 16 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 |
164 | 154 | 107 | 246 | 86 | 131 | 184 | 191 | 186 | 165 | 269 | 243 | 509 | 613 | 520 | 501 | 653 | 537 | 416 | 333 | 236 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 14 | NE 7 | SSW 13 | SSW 16 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSE 9 | S 20 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | W 12 | W 11 | W 12 | ESE 12 | SSW 18 |
67 | 63 | 115 | 96 | 102 | 57 | 56 | 50 | 23 | 43 | 15 | 268 | 218 | 218 | 173 | 113 | 11 | 10 | 11 | 208 | 30 | |
Swell 3 Height (m) Direction Period (s) | SSW 15 | SW 12 | SSW 13 | NE 9 | SSW 18 | NNW 10 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | S 21 | W 13 | W 13 | W 12 | W 12 | W 12 | SW 19 | SW 18 | SW 18 | SSW 18 | W 11 |
71 | 39 | 99 | 13 | 102 | 33 | 28 | 15 | 13 | 11 | 79 | 13 | 13 | 11 | 11 | 11 | 14 | 13 | 12 | 30 | 9 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | ENE 6 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 7 | E 6 | ENE 6 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 15 |
165 | 189 | 145 | 245 | 296 | 392 | 292 | 292 | 355 | 238 | 215 | 239 | 237 | 201 | 388 | 385 | 326 | 621 | 883 | 1074 | 9250 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 58 | 49 | 49 | 109 | 49 | 49 | 49 | 22 | 49 | 56 | 20 | 49 | 109 | 49 | 110 | 64 | 110 | 218 | 218 | 140 |
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.











