Surf Forecasts:
Makapu'u surf forecast from 6 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.3m), 16s period, S swell with 890 kJ wave energy.
Best Forecast Surf Conditions for Makapu'u this week:
The most powerful waves expected at Makapu'u in the next 16 days are 1.3m 16s and forecast to arrive on Thursday (Aug 13) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 14s period and expected on Thursday (Aug 06) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Thu 13th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Makapu'u over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it.
Right off the bat, I gotta be straight with you – this stretch is looking pretty grim for any decent surf. The whole 16-day window is a bust, with every single forecast slot tagged as "poor surf conditions." There's no standout, no hidden gem, nothing worth paddling out for. It's a flat spell, plain and simple.
We start on Thursday, August 6th, with a tiny 1 ft swell from the SSW, a 14-second period, and a moderate breeze from the ENE at 16 mph. The wave energy is weak, sitting at 249. The water temperature is 80°F, which is right on the money, about normal for this time of year. But the conditions are just awful. That same tiny, weak swell and onshore wind pattern drags on through Friday, with the wind picking up to a fresh breeze at 19 mph.
Come Saturday the 8th and Sunday the 9th, the swell tries to build, hitting 6 ft from the ENE, but the period is a short, crumbly 6-7 seconds, and that wind is still hammering onshore at 22 mph. The wave energy climbs into the moderate range (390 to 687), but it doesn't matter – the quality is zero. This is the kind of setup that would be more interesting for kite surfing than paddle surfing.
The pattern continues through the next week. Swell sizes fluctuate between 4 ft and 12 ft, but the wind never lets up. By the second week, from Friday, August 14th, through to Monday the 18th, we've got a solid swell running – 8 ft to 12 ft from the ENE – but the wind is howling at 25 to 28 mph. The wave energy gets strong, hitting 2203, but it's all blown-out junk. This is expert-only territory, and even then, it's not worth it.
The final few days from the 19th to the 21st see the swell dropping back down, but the wind is still onshore, and the surf remains poor. Honestly, there's nothing to get excited about. Makapu'u is a reef break that's fairly consistent, but when the forecast is this blank, you just have to shake your head and wait for a better window.
Hang in there, the forecasts can always change.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 25°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 25°C on Sun morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 | SSW 14 | ENE 8 | SSW 14 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | SSW 14 | S 20 | S 18 | S 18 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 82 | 81 | 107 | 77 | 74 | 182 | 252 | 260 | 312 | 328 | 397 | 319 | 259 | 234 | 245 | 186 | 269 | 365 | 515 | 620 | 890 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 11:19AM0.53m | 12:18PM0.61m | 1:01PM0.68m | 1:40PM0.72m | 11:41PM0.30m | 2:17PM0.74m | 00:48AM0.34m | 2:50PM0.74m | 1:43AM0.37m | 3:21PM0.72m | 2:36AM0.40m | ||||||||||
Low Tide | 3:11AM-0.00m | 4:25AM-0.03m | 5:29AM-0.07m | 8:45PM0.24m | 6:24AM-0.09m | 8:55PM0.22m | 7:12AM-0.10m | 9:16PM0.20m | 7:57AM-0.08m | 9:41PM0.17m | |||||||||||
 |  |  | | | | | | | | | | | | | | | | | |  | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 26 |
Feels °C | 25 | 26 | 24 | 25 | 24 | 23 | 24 | 24 | 22 | 23 | 24 | 23 | 25 | 25 | 24 | 25 | 24 | 24 | 23 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SW 18 | SW 18 | SSW 13 | SSW 13 | SSW 12 | S 16 | ENE 7 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 |
| kJ | 59 | 54 | 102 | 77 | 73 | 107 | 164 | 154 | 99 | 96 | 86 | 131 | 259 | 191 | 186 | 165 | 269 | 243 | 515 | 620 | 890 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSE 11 | NE 10 | SW 20 | SSW 19 | SSW 13 | SSW 14 | SW 18 | SSW 17 | SSW 16 | SSW 12 | SSW 15 | SSW 11 | SSE 9 | SSW 11 | SSE 9 | S 20 | SSW 13 | SSW 13 | W 12 |
| kJ | 82 | 81 | 40 | 23 | 100 | 148 | 67 | 63 | 150 | 108 | 102 | 57 | 184 | 49 | 16 | 41 | 25 | 365 | 222 | 218 | 11 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SSE 11 | NNW 7 | SW 21 | SSE 11 | NE 11 | SSW 15 | SW 12 | SSE 10 | SSW 17 | SSW 18 | NNW 10 | SSW 12 | NNW 9 | SSW 11 | SSE 9 | S 21 | SSE 9 | SSE 9 | W 10 | S 20 |
| kJ | 44 | 24 | 11 | 115 | 23 | 31 | 71 | 39 | 19 | 96 | 102 | 33 | 56 | 25 | 23 | 25 | 79 | 7 | 7 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 8 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | NE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 |
| kJ | 64 | 57 | 107 | 62 | 74 | 182 | 252 | 260 | 312 | 328 | 397 | 319 | 77 | 234 | 245 | 186 | 181 | 157 | 135 | 111 | 135 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 20 | 18 | 49 | 49 | 49 | 50 | 56 | 50 | 49 | 50 | 49 | 49 | 20 | 21 | 49 | 21 | 21 | 49 | 49 | 49 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Makapu'u Surf forecast
The above surf forecast table for Makapu'u provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Makapu'u can be found by selecting the local surf guide option on the grey menu. Our Makapu'u 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 (Makapu'u) 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 Makapu'u 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.
Makapu'u is 13 km (8 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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