Surf Forecasts:
Halfpoint/Fullpoint surf forecast from 16 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 8AM (local time) - 15ft (4.5m), 10s period, E swell with 3,618 kJ wave energy.
Best Forecast Surf Conditions for Halfpoint/Fullpoint this week:
The most powerful waves expected at Halfpoint/Fullpoint in the next 16 days are 4.5m 10s and forecast to arrive on Sunday (Aug 16) 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 0.7m 16s period and expected on Friday (Aug 21) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sun 16th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Halfpoint/Fullpoint over the next 16 days.
The Lowdown
Alright folks, Rusty here, sizing up the run at Halfpoint/Fullpoint. Gotta be honest with you – this 16-day window is a tough slog. The first week and a half is basically a write-off for paddling.
It starts rough on Sunday the 16th. A solid 10-foot swell coming from the ENE, but we’ve got a strong ESE wind blowing right onshore at 25 mph. It’s a total choppy, lumpy disaster. The combined swell energy is high, but it doesn’t matter with that wind.
And it just keeps going. From Monday the 17th through the rest of that first week and into the next, the wind is mostly cross-shore from the east-northeast, blowing 12 to 25 mph. The swell is small, weak, and short-period, with energy readings mostly staying in the low hundreds. It’s all lumpy cross-chop and poor surf.
There’s a big gap with nothing to recommend from the 16th right up until Friday the 28th of August.
Then, at the tail end, the swell finally shows up. Saturday the 29th sees a big 10-foot swell from the ENE with a short 8-second period. The energy is strong, hitting around 1400. But the cross-shore wind is still there at 19 mph. The notes say this swell is predicted to be too big for this break. That’s expert-only territory and with the cross-wind, it’s going to be a nasty, powerful mess. That’s kite-surfing country, not a clean paddle.
Sunday the 30th and the 31st see the swell drop to about 8 feet, still with cross-shore wind, and the reports are “marginal” and “questionable tide conditions.”
So the long and short of it is there are no good surf options in this entire 16-day window. It’s a long, blank stretch. The only real power comes at the end, but it’s just not coming together for a quality surf. Forecasts change, but for now, I’d save the energy.
Rusty
Short Range ForecastHeavy rain (total 55mm), heaviest during Sun morning. Warm (max 27°C on Sun night, min 25°C on Sun morning). Winds decreasing (strong winds from the ESE on Sun morning, light winds from the E by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 9 | ENE 9 | ENE 8 | ENE 8 | S 14 | ENE 7 | S 13 | ENE 7 | ENE 9 | E 8 | E 8 | E 8 | SSW 18 | SSW 17 | NE 7 | ENE 7 | NE 7 | SSW 16 | ENE 6 | S 12 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1424 | 754 | 394 | 276 | 260 | 170 | 165 | 137 | 193 | 169 | 100 | 63 | 207 | 200 | 55 | 84 | 57 | 322 | 66 | 76 | 212 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross |
High Tide | 5:21PM0.47m | 6:52AM0.50m | 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 | |||||||||
Low Tide | 11:53AM0.20m | 00:11AM0.05m | 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 | |||||||||
 | |  |  | |  | | | |  | | | | | | | | | | |  | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — |
mm | 41 | 7 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 27 | 26 |
Feels °C | 24 | 25 | 28 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 29 | 28 | 27 | 27 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | ENE 9 | ENE 8 | S 14 | S 14 | ENE 7 | ENE 7 | S 13 | S 13 | SW 16 | E 8 | E 8 | E 8 | E 8 | NE 7 | ENE 7 | NE 7 | SSW 16 | ENE 6 | E 8 | SSW 16 |
| kJ | 592 | 754 | 394 | 264 | 260 | 163 | 132 | 119 | 80 | 129 | 84 | 63 | 57 | 54 | 55 | 84 | 57 | 322 | 66 | 61 | 212 |
Swell 2 Height (m) Direction Period (s) | S 16 | SSE 8 | SSE 7 | SSE 6 | SW 6 | S 13 | S 13 | SW 18 | SSE 7 | S 12 | S 12 | NE 6 | SSW 18 | SSW 17 | SW 16 | SW 17 | SW 16 | NE 7 | SW 16 | SW 16 | SSE 12 |
| kJ | 190 | 229 | 68 | 21 | 18 | 170 | 165 | 80 | 9 | 44 | 45 | 40 | 207 | 200 | 274 | 291 | 264 | 55 | 261 | 251 | 50 |
Swell 3 Height (m) Direction Period (s) | S 13 | S 13 | S 14 | SW 6 | SSE 6 | SW 6 | SW 17 | WSW 7 | SW 18 | NNE 6 | SSW 16 | SW 16 | NE 6 | NNE 6 | E 8 | S 11 | E 8 | S 13 | S 12 | S 12 | WNW 10 |
| kJ | 81 | 166 | 250 | 18 | 10 | 5 | 74 | 10 | 79 | 8 | 100 | 129 | 32 | 27 | 28 | 21 | 12 | 54 | 47 | 76 | 33 |
Wind waves Height (m) Direction Period (s) | ENE 9 | SSE 8 | — | ENE 8 | ENE 7 | — | — | ENE 7 | ENE 9 | E 8 | NNE 6 | — | — | — | — | — | — | — | — | NE 7 | E 7 |
| kJ | 1424 | 356 | — | 276 | 231 | — | — | 137 | 193 | 169 | 27 | — | — | — | — | — | — | — | — | 44 | 212 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 140 | 41 | 6 | 48 | 48 | 20 | 48 | 19 | 17 | 48 | 17 | 17 | 16 | 17 | 6 | 6 | 14 | 6 | 48 | 48 | 17 |
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.
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