Surf Forecasts:
Halfpoint/Fullpoint surf forecast from 18 Aug 2026:
- Best quality surf: Friday 21 Aug, 8AM (local time) - 2ft (0.6m), 7s period, NNE swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 11PM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,072 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 2ft (0.6m), 7s period with NNE 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 Friday (Aug 21) at 8AM. The primary swell is predicted to be 0.6m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Halfpoint/Fullpoint in the next 16 days are 3.0m 8s and forecast to arrive on Monday (Aug 24) at 11PM. 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+) | 8AM (Fri 21st Aug) | 2ft (0.6m) 7s |
| Best Surf | 8AM (Fri 21st Aug) | 2ft (0.6m) 7s |
| Most Powerful | 11PM (Mon 24th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Halfpoint/Fullpoint over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a yarn about what’s brewing at Halfpoint/Fullpoint over the next couple of weeks.
First thing’s first: we’ve got a long, quiet spell ahead. The water here is sitting at a balmy 80° – about average for this time of year, so nothing out of the ordinary there.
From Tuesday the 18th of August all the way through to the end of that week, it’s pretty grim. Swell heights are small, mostly under 4 ft, with cross-shore winds gusting 12 to 25 mph. That ENE breeze is just chopping everything up. The combined swell energy is moderate at best – numbers like 406 on Tuesday morning dropping to 166 on Wednesday morning – but the ‘poor surf conditions’ tag tells you all you need to know. Don’t bother.
Friday the 21st of August morning offers a tiny glimmer. The swell is only 2 ft from the east at a short 7 seconds, and the wind goes glassy, with just a slight air. Wave energy is weak (64). It’s surfable but very ordinary – a real ‘if you’re desperate’ scenario. That afternoon it goes cross-onshore and the little bump dies off.
Then from Saturday the 22nd of August through to the end of the month, the swell picks up – 5 ft, then 6 ft, 7 ft, peaking at 8 ft – but it’s all short-period ENE windswell, with fresh to strong cross-shore winds. The combined energy ramps up into the strong zone (660, 706, 884 up to 1077), but the wind is just destroying any chance of decent waves. Messy cross-chop, lumpy… it’s ugly. Too big for beginners once it hits over 5 ft, and by the 23rd and 24th it’s over 7 ft, but the quality is so poor that even experienced surfers won’t find anything worth paddling for.
Now, late in the run, we get some interesting signals. On Sunday the 30th and Monday the 31st of August, the swell jumps to 10 ft to 12 ft from the east, with a period of 9 seconds. Combined swell energy is massive – 1819 and 1969 – really strong. But the catch is the ENE cross-shore still blowing 19 to 22 mph. The data says the wind and tide are favourable, but the swell is too big for this break – it’s expert territory. Definitely not for beginners (over 8 ft is for experienced crew only) and with that wind, it’s not clean. For a beach setup like this, that kind of power and cross-wind might be more interesting for kite surfers than paddle surfers.
Come Tuesday the 1st of September, it’s still big (7 to 8 ft) but the wind eases a little. The wave energy is still very strong (2044 on Tuesday morning), but it’s labelled ‘marginal’ with questionable tide conditions.
The one true standout? Wednesday the 2nd of September afternoon. That’s the pick of the entire outlook. The swell drops to a manageable 7 ft from the east (8 seconds), but the wind swings to a glassy south-southeast breeze. Combined energy is still strong at 1263 – there’s plenty of push. The report calls it ‘excellent surf conditions for experienced surfers’. That glassy offshore wind is going to make it clean, and with that energy, the waves will have proper shape. Keep in mind, with a period of 8 seconds it’s not long groundswell, so it’ll be a little more sectiony, but on the right tide, Halfpoint/Fullpoint could deliver some fun ones. Crowds? The guidance says the break is ‘often’ busy, so expect company.
To sum up: you’ve got a long dry spell from now until the end of August, then a couple of big, messy days, and then finally on September the 2nd, a solid window for experienced surfers. That Wednesday afternoon is your best bet by a long shot.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Tue night). Winds decreasing (fresh winds from the ENE on Tue morning, light winds from the NE by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Fri morning). Winds increasing (calm on Fri morning, strong winds from the ENE by Sat night). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 | S 13 | E 9 | E 8 | E 8 | E 8 | SSW 18 | SSW 17 | NE 7 | NNE 7 | ENE 7 | SSW 16 | ENE 7 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
165 | 140 | 117 | 86 | 100 | 82 | 207 | 200 | 82 | 35 | 63 | 322 | 158 | 252 | 335 | 485 | 381 | 529 | 512 | 654 | 1001 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on |
High Tide | 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 | 1:26PM0.65m | 1:20AM0.27m | |||||||||
Low Tide | 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 | 6:13AM0.06m | 8:49PM0.11m | |||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 23 | 24 | 25 | 26 | 25 | 27 | 28 | 29 | 30 | 30 | 28 | 25 | 25 | 24 | 23 | 22 | 23 | 22 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | E 9 | E 8 | E 8 | E 8 | E 8 | E 7 | NE 7 | SW 17 | ENE 7 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSE 13 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSE 11 |
158 | 140 | 117 | 86 | 84 | 82 | 72 | 70 | 82 | 291 | 63 | 322 | 261 | 255 | 212 | 99 | 144 | 186 | 108 | 118 | 133 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | SW 16 | S 12 | SW 16 | SSW 18 | NNE 6 | SW 16 | NNE 7 | SW 16 | WNW 10 | WNW 10 | W 10 | S 14 | SW 15 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSW 13 |
165 | 119 | 116 | 129 | 45 | 129 | 207 | 27 | 274 | 29 | 261 | 33 | 34 | 54 | 104 | 116 | 67 | 57 | 59 | 81 | 64 | |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 18 | SW 18 | S 12 | SSW 16 | S 12 | NNE 6 | SSW 17 | E 8 | E 7 | NNE 7 | S 13 | S 12 | S 12 | NW 12 | SSW 15 | WNW 10 | SE 12 | SE 10 | SSW 18 | SSW 17 |
74 | 80 | 79 | 44 | 100 | 45 | 27 | 200 | 31 | 35 | 18 | 54 | 47 | 47 | 34 | 76 | 10 | 39 | 27 | 31 | 56 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | NE 6 | NE 5 | NE 7 | NNE 6 | NE 6 | — | — | — | — | — | ENE 7 | ENE 7 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 |
83 | 31 | 23 | 36 | 26 | 32 | — | — | — | — | — | 105 | 158 | 252 | 335 | 485 | 381 | 529 | 512 | 654 | 1001 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 17 | 17 | 17 | 17 | 17 | 14 | 6 | 6 | 0 | 5 | 17 | 48 | 55 | 51 | 56 | 111 | 56 | 62 | 111 | 110 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











