
Surf Forecasts:
Cliffs surf forecast from 12 Aug 2026:
- Best quality surf: Monday 17 Aug, 8AM (local time) - 2.5ft (0.8m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 2PM (local time) - 10ft (3.0m), 10s period, E swell with 1,707 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8AM (local time) - 2.5ft (0.8m), 14s period with S swell.
Best Forecast Surf Conditions for Cliffs this week:
The surf forecast for Cliffs over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 8AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 1.2m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cliffs in the next 16 days are 3.0m 10s and forecast to arrive on Sunday (Aug 16) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 11s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Mon 17th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 8AM (Mon 17th Aug) | 2.5ft (0.8m) 14s |
| Most Powerful | 2PM (Sun 16th Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Cliffs over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a long stretch ahead, but don’t go expecting perfection. We’re looking at Cliffs – a beach and reef setup, exposed to the south swell, and it’s a consistent break. The water temp is sitting at 81°, which is pretty much average for this time of year, so no surprises there.
The problem is, for the first week and a half, the wind is a real bastard. Mostly a fresh cross-off from the ENE, but the swell is small and the energy is all over the place. It’s not doing us any favours. The real story here is the wind. It’s a constant breeze, 19 to 28 mph, and while it’s cross-off, it’s just too strong for the tiny waves to hold any shape. The swell hovers around 3 ft to 4 ft, coming from the S/SSW, with periods dropping from 18 seconds down to 13 seconds. The combined energy is moderate at best, with values like 364 (moderate energy) early on, but it’s just not enough to overcome the chop. The marginal surf comments and the zero scores tell the truth – this is a tough stretch. There’s a risk of thunderstorms on the 16th (Sunday) which just adds to the mess.
Then, we hit Monday the 17th of August. There’s a brief window. Monday morning shows a little pulse of 3 ft from the south at 14 seconds, combined energy of 451 (moderate), and the wind eases to a gentle 9 mph cross-off from the ENE. That’s the cleanest we’ll see for a while, and the “expect good surf conditions” call backs it up. It’s not a big swell, but it’ll be rideable and clean. That’s your best bet in the first week.
After that, it’s back to the same story – fresh breeze, small swell, and poor conditions through to the 22nd. The energy drops to weak values like 172 (weak energy) on the 18th, and the swell barely makes it to 2 ft. Honestly, it’s a bit of a desert.
Now, things start to look a little more promising around Saturday the 22nd of August afternoon. The swell picks up a bit to 2 ft from the S, but with a long period of 19 seconds, the combined energy jumps to 465 (moderate). The wind is still a moderate cross-off from the NE, so it’s clean. The long period makes it a bit more of a groundswell, which is better for a reef/point setup like this, but it can make it a bit straight at times. It’s marginal, but it’s the best we’ve seen in a while.
Then, the real standout is Monday the 24th of August. The morning shows a jump in swell to 3 ft from the S at 18 seconds, with energy hitting 791 (strong). It’s a fresh ENE cross-off, so it’s clean. The afternoon gets even bigger, with 3 ft from the S at 14 seconds, and energy maxing out at 828 (strong). That’s the most energy we’ve seen in the whole window. The wind is still fresh, but the swell is pushing through. This is your best bet for the second week, but it’s still a ‘marginal’ call, so keep an eye on it.
Tuesday the 25th of August morning is also worth a mention. Swell is 4 ft from the S at 16 seconds, energy of 892 (strong). That’s the biggest swell of the forecast, but it’s also borderline for beginners – over 5 ft? No, it’s 4 ft, so still okay for most. But the wind is picking up again to a moderate to strong breeze, so it’ll be a battle.
Bottom line: The first week is a write-off. There’s a tiny clean window on the 17th morning, but it’s small. The second week has more energy, with the 24th and 25th of August offering the best chance for a decent session, but the wind is always a factor. This is a spot that needs the wind to cooperate, and it’s just not happening for long stretches. Given the consistent nature of the break, it’ll turn around eventually, but not this week.
Stay patient, and keep your eyes on the 24th.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu morning, min 25°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 38mm), heaviest during Sat night. Warm (max 27°C on Sun afternoon, min 25°C on Fri night). Winds decreasing (gales from the ENE on Sat night, light winds from the ESE by Sun night). | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | SSW 14 | S 20 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | S 16 | S 14 | S 14 | S 14 | S 13 |
Wave Graph | ||||||||||||||||||||
269 | 276 | 509 | 498 | 520 | 501 | 662 | 537 | 411 | 411 | 306 | 222 | 168 | 173 | 133 | 127 | 246 | 268 | 203 | 170 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off |
High Tide | 3:35PM0.79m | 3:43AM0.31m | 4:13PM0.75m | 4:30AM0.36m | 4:48PM0.69m | 5:17AM0.40m | 5:22PM0.62m | 6:06AM0.44m | 5:54PM0.53m | 6:57AM0.47m | 6:24PM0.45m | 7:54AM0.49m | 6:52PM0.37m | |||||||
Low Tide | 10:40PM0.05m | 9:08AM-0.00m | 11:08PM0.04m | 9:58AM0.03m | 11:36PM0.04m | 10:49AM0.08m | 00:03AM0.04m | 11:43AM0.14m | 00:30AM0.05m | 12:43PM0.20m | 00:58AM0.06m | 1:59PM0.25m | 1:27AM0.08m | |||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 15 | 11 | 4 | 6 | 2 | 1 | — |
Temp °C | 26 | 25 | 26 | 26 | 26 | 27 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 25 |
Feels °C | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 24 | 26 | 28 | 30 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | ENE 10 | ENE 9 | ENE 8 | ENE 8 |
269 | 243 | 509 | 498 | 520 | 501 | 662 | 537 | 411 | 411 | 306 | 222 | 168 | 173 | 116 | 119 | 1808 | 651 | 486 | 365 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | S 20 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | W 12 | W 11 | ESE 11 | W 12 | W 11 | W 11 | S 16 | S 18 | S 16 | S 16 | S 14 | S 14 | SSE 7 | S 13 |
16 | 276 | 218 | 218 | 222 | 113 | 11 | 10 | 25 | 11 | 21 | 9 | 79 | 56 | 133 | 127 | 246 | 268 | 158 | 170 | |
Swell 3 Height (m) Direction Period (s) | S 21 | SSE 9 | W 13 | W 12 | W 12 | W 12 | SW 19 | SW 18 | W 12 | SSW 18 | SSW 17 | SW 17 | W 13 | W 13 | W 12 | W 12 | S 16 | S 9 | S 14 | SSE 6 |
79 | 15 | 30 | 25 | 25 | 11 | 14 | 13 | 11 | 30 | 29 | 12 | 30 | 30 | 25 | 25 | 81 | 15 | 203 | 27 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 11 | ENE 11 | ENE 10 | E 10 | ENE 10 | ENE 10 | SSE 7 | — | ENE 8 |
160 | 181 | 139 | 158 | 218 | 188 | 219 | 362 | 356 | 408 | 533 | 1403 | 1906 | 2493 | 1763 | 1513 | 2216 | 168 | — | 462 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 36 | 35 | 35 | 43 | 35 | 36 | 49 | 36 | 44 | 124 | 205 | 205 | 206 | 206 | 228 | 50 | 43 | 0 | 35 | 35 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Cliffs Surf forecast
The above surf forecast table for Cliffs provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cliffs can be found by selecting the local surf guide option on the grey menu. Our Cliffs 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 (Cliffs) 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 Cliffs 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.
Cliffs is 8 km (5 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.











