Surf Forecasts:
Makapu'u surf forecast from 31 Jul 2026:
- Most powerful swell: Saturday 1 Aug, 11AM (local time) - 11ft (3.5m), 8s period, E swell with 1,398 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 3.5m 8s and forecast to arrive on Saturday (Aug 01) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Friday (Jul 31) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sat 1st Aug) | 11ft (3.5m) 8s |
Table - best surf conditions forecast for Makapu'u over the next 16 days.
The Lowdown
Right, let’s have a look at what’s happening, yeah? I’m looking at the whole 16-day picture for Makapu’u, and I gotta be straight with you—it’s a rough stretch. The wind is gonna be a real problem for most of it, hammering in from the ENE, and that’s a big onshore blow for this spot. We’re talking a solid week and a half of "poor surf conditions" getting flagged over and over.
The first real surf that shows up on the cards is already a tough one. Starting Friday, July 31st, through the whole weekend and into the next week, the swell is there—size from 6ft up to a couple of days pushing 12ft—but the wind is relentless. It’s onshore at 25 mph, so it’s gonna be choppy, bumpy, and messy. The wave energy is moderate to very strong, with values like 958 (moderate) and even 1572 (strong) on the Saturday, which is a lot of power, but it’s all getting chopped up by the wind. The period is short, around 8 seconds, so it’s windswell, not the good stuff. This is not the kind of day you paddle out for a clean session; honestly, this setup looks more interesting for kite surfing than paddle surfing.
The wind does ease a little going into the second week, but the swell drops off. By Monday, August 10th, we get a weird little pulse from the SSW with a very long period of 16 seconds and a combined energy of 824 (moderate), but the swell is tiny at 3ft. That’s a long-period groundswell that’s gonna be too straight for a beach break, but it’s a reef here, so it might wrap in. The problem is the wind is still onshore from the ENE at 15 to 19 mph, so even that glassy potential is lost. That’s a tease.
The best-looking window is Saturday, August 15th, with a bump from the south, period of 16 seconds, and a combined energy of 752 (moderate). The swell is only 4ft, and the wind is still onshore from the ENE at 12 mph, so it’s not clean. The water temp is about average for the time of year, nothing wild.
Overall, there’s no standout here. The wind is the enemy. The entire 16 days is a struggle. You’ll get a few days in the middle of the second week, around August 14th and 15th, where the wind drops to a gentle breeze, but the swell is small and the conditions are still marginal. It’s a long wait for something that’s only just okay. Don’t get your hopes up.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 27°C on Thu night, min 25°C on Fri afternoon). Winds increasing (moderate winds from the E on Thu night, strong winds from the ENE by Fri night). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Sun night). Mainly fresh winds. | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 311 | 408 | 551 | 1268 | 1398 | 1098 | 1020 | 908 | 804 | 646 | 439 | 379 | 902 | 680 | 597 | 446 | 315 | 268 | 256 |
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 |
High Tide | 2:57AM0.35m | 4:27PM0.64m | 3:46AM0.36m | 4:44PM0.61m | 4:42AM0.37m | 4:58PM0.57m | 5:48AM0.38m | 5:09PM0.52m | 7:16AM0.41m | 5:14PM0.48m | 9:27AM0.45m | 4:57PM0.44m | |||||||
Low Tide | 10:31PM0.18m | 9:04AM-0.01m | 10:57PM0.16m | 9:37AM0.05m | 11:22PM0.13m | 10:12AM0.11m | 11:50PM0.10m | 10:52AM0.19m | 00:22AM0.07m | 11:44AM0.27m | 1:03AM0.04m | 1:35PM0.35m | 1:59AM0.02m | ||||||
 |  | |  | | | |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 7:09 | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 28 | 24 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 23 | 24 | 23 | 26 | 26 | 26 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | S 13 | E 15 | E 16 | E 15 | SSW 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 12 | E 13 | ENE 12 | ENE 11 | ENE 11 | SSW 11 | SSW 11 | ENE 9 | SSW 14 |
| kJ | 166 | 216 | 301 | 267 | 127 | 257 | 249 | 242 | 189 | 125 | 113 | 156 | 902 | 680 | 597 | 48 | 40 | 268 | 82 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | S 12 | SW 15 | SW 15 | S 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 15 | SW 16 | SSW 15 | SSE 12 |
| kJ | 177 | 153 | 239 | 176 | 42 | 123 | 131 | 133 | 68 | 40 | 53 | 29 | 48 | 46 | 43 | 57 | 61 | 88 | 49 |
Swell 3 Height (m) Direction Period (s) | E 16 | SW 16 | S 12 | S 12 | S 15 | S 11 | S 11 | N 9 | N 9 | SSW 13 | SW 13 | SW 13 | SSE 9 | SSE 12 | SW 16 | SSE 13 | S 13 | SSW 11 | SSW 10 |
| kJ | 127 | 206 | 106 | 72 | 5 | 39 | 23 | 15 | 14 | 58 | 42 | 41 | 8 | 30 | 68 | 58 | 54 | 39 | 18 |
Wind waves Height (m) Direction Period (s) | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | ENE 10 | ENE 9 | — | ENE 8 |
| kJ | 311 | 408 | 551 | 1268 | 1398 | 1098 | 1020 | 908 | 804 | 646 | 439 | 379 | — | — | — | 446 | 315 | — | 256 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 18 | 58 | 111 | 58 | 140 | 113 | 113 | 60 | 140 | 49 | 21 | 51 | 18 | 18 | 8 | 18 | 18 | 18 | 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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