Surf Forecasts:
Halfpoint/Fullpoint surf forecast from 17 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11PM (local time) - 2ft (0.6m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 8AM (local time) - 6ft (1.9m), 7s period, ENE swell with 348 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 11PM (local time) - 2ft (0.6m), 16s period with SSW swell.
Best Forecast Surf Conditions for Halfpoint/Fullpoint this week:
The surf forecast for Halfpoint/Fullpoint over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 11PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.8m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Halfpoint/Fullpoint in the next 16 days are 1.9m 7s and forecast to arrive on Monday (Aug 24) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 16s period and expected on Friday (Aug 21) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 20th Aug) | 2ft (0.6m) 16s |
| Best Surf | 11PM (Thu 20th Aug) | 2ft (0.6m) 16s |
| Most Powerful | 8AM (Mon 24th Aug) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Halfpoint/Fullpoint over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’re looking at a solid stretch of swell at Halfpoint/Fullpoint, but the wind is going to be a real pain for most of the run. This spot is exposed to the swell, and it loves an ESE direction, but for the next week or so, we’re stuck with a persistent cross-shore or cross-onshore breeze from the ENE. The water temp is sitting about average for this time of year, so nothing weird there.
The first week is a write-off for any decent surf. From Monday the 17th right through to Sunday the 23rd, the wind is just too strong, blowing 12 to 19 mph from the ENE, and the surf quality is poor. There’s a bit of energy in the water, with wave energy values ranging from 155 to 607 (moderate), but the wind is just ruining it. The swell is mostly small, from 1 ft to 5 ft, with short periods, so it’s choppy and lumpy. This is a long, frustrating gap with no real recommendations.
Then we hit the 24th of August, and things start to get bigger, but the wind is still howling at 19 mph from the ENE. The swell builds from 6 ft to 8 ft, and the wave energy jumps up to 835 (strong), but it’s still all cross-shore and lumpy. The surf is still poor. We’re just getting a lot of messy, blown-out swell.
Now, the real standout comes on Thursday the 27th of August. The swell hits 10 ft from the ENE, with a period of 8 seconds, and the wind drops to a moderate 16 mph cross-shore. The wave energy is a massive 1494 to 1707 (very strong). The forecast says the wind and tide are favorable, but here’s the catch: at 10 ft, this break is too big. This is for experts only. The swell is pushing hard, and with a moderate cross-shore wind, it’s going to be a heavy, powerful, and dangerous wave. It’s the best on offer, but only if you’ve got the skills and the nerve. The energy is extreme, and the sets will be long and powerful.
From Friday the 28th through Saturday the 29th, we’re still looking at 10 ft swell, but the wind picks back up to 19 mph, and the quality drops. By Sunday the 30th, the swell has dropped back to 2 ft from the SSW, with a long 16-second period, but the wind is back up to 22 mph, so it’s just a messy, weak leftover.
So, the bottom line: there’s a big, dangerous window of expert-only surf on Thursday the 27th. Everything else is either too small, too windy, or too big for the average surfer. The first week is a total blank. After that, it’s a gamble. But if you’re a seasoned charger, Thursday the 27th is your day.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon morning, min 24°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 25°C on Thu morning). Winds increasing (light winds from the NE on Thu night, fresh winds from the ENE by Sat night). | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | S 14 | S 14 | S 13 | ENE 7 | ENE 7 | S 13 | E 8 | E 8 | E 8 | SSW 18 | SSW 17 | NE 7 | ENE 7 | ENE 7 | SSW 16 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 6 | ENE 7 |
Wave Graph | |||||||||||||||||||||
334 | 260 | 222 | 165 | 143 | 132 | 109 | 100 | 80 | 207 | 200 | 73 | 57 | 48 | 322 | 129 | 113 | 303 | 262 | 280 | 335 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross |
High Tide | 5:48PM0.38m | 7:56AM0.52m | 6:10PM0.31m | 9:08AM0.53m | 10:20AM0.55m | 8:45PM0.20m | 11:21AM0.57m | 10:59PM0.20m | 12:10PM0.60m | 00:02AM0.21m | 12:51PM0.62m | 00:45AM0.24m | |||||||||
Low Tide | 1:08PM0.25m | 00:39AM0.07m | 2:59PM0.27m | 1:14AM0.09m | 2:00AM0.10m | 7:38PM0.20m | 3:06AM0.11m | 7:49PM0.17m | 4:20AM0.10m | 8:09PM0.14m | 5:23AM0.08m | 8:29PM0.12m | |||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 25 | 25 |
Feels °C | 25 | 24 | 23 | 24 | 22 | 23 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 24 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 7 | S 13 | ENE 7 | ENE 7 | S 13 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 7 | ENE 7 | ENE 7 | SSW 16 | NE 7 | SW 16 | SSW 16 | SSE 13 | SSW 15 | SW 14 |
250 | 228 | 222 | 141 | 143 | 116 | 109 | 84 | 80 | 74 | 54 | 73 | 57 | 48 | 322 | 54 | 255 | 212 | 101 | 191 | 99 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | SW 6 | S 13 | S 13 | SW 18 | NNE 7 | SSW 16 | NE 6 | SSW 18 | NE 7 | SW 16 | SW 17 | SW 16 | S 13 | SW 16 | E 8 | SSE 12 | SW 15 | WNW 12 | SSE 13 |
334 | 260 | 6 | 165 | 119 | 79 | 29 | 100 | 31 | 207 | 35 | 274 | 291 | 261 | 54 | 261 | 33 | 51 | 113 | 27 | 56 | |
Swell 3 Height (m) Direction Period (s) | S 6 | SSE 5 | W 11 | SW 17 | SW 18 | W 12 | SW 16 | S 12 | SW 16 | NE 6 | SSW 17 | E 8 | NNE 7 | NNE 6 | E 8 | E 6 | S 12 | WNW 10 | SSW 15 | S 11 | SSW 15 |
23 | 10 | 10 | 74 | 80 | 25 | 129 | 45 | 129 | 32 | 200 | 31 | 19 | 28 | 12 | 36 | 47 | 19 | 76 | 22 | 71 | |
Wind waves Height (m) Direction Period (s) | — | — | ENE 7 | — | — | ENE 7 | — | NE 6 | — | — | — | — | — | — | ENE 7 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 6 | ENE 7 |
— | — | 203 | — | — | 132 | — | 31 | — | — | — | — | — | — | 68 | 129 | 113 | 303 | 262 | 280 | 335 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 20 | 21 | 48 | 48 | 17 | 17 | 17 | 14 | 17 | 6 | 0 | 6 | 18 | 17 | 41 | 48 | 48 | 49 | 61 | 48 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Halfpoint/Fullpoint Surf forecast
The above surf forecast table for Halfpoint/Fullpoint provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Halfpoint/Fullpoint can be found by selecting the local surf guide option on the grey menu. Our Halfpoint/Fullpoint 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 (Halfpoint/Fullpoint) 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 Halfpoint/Fullpoint 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.
Halfpoint/Fullpoint 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.











