
Surf Forecasts:
Makapu'u surf forecast from 5 Sep 2026:
- Most powerful swell: Saturday 5 Sep, 8AM (local time) - 7.5ft (2.3m), 14s period, ENE swell with 1,970 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 2.3m 14s and forecast to arrive on Saturday (Sep 05) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 14s period and expected on Tuesday (Sep 08) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 5th Sep) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Makapu'u over the next 16 days.
The Lowdown
Alright, let’s break down what’s on the cards for the next couple of weeks. It’s gonna be a rough one for Makapu'u (Oahu), no sugar-coating it. The first week and a half is just a mess of strong, onshore wind and poor conditions. There are a couple of glimmers late in the game, but you’ll need to be patient.
From Saturday the 5th right through to Tuesday the 15th, the surf is poor. The swell is hanging around 7 ft to 8 ft from the ENE, but the wind is blowing onshore from the ENE or NE at 15 to 22 mph, just killing it. The water temp is 81°, which is normal for this time of year. The wave energy is strong to very strong early on, with readings like 2360 and 2296, but with that wind, it’s all chop and whitewash. This setup is more for the kite crowd than paddle surfers.
There’s a tiny window on Tuesday the 8th. The wind goes cross-offshore from the S in the afternoon, with a 6 ft ENE swell (11-second period, moderate energy at 1110). It’s called clean, but the morning is still garbage. It’s a marginal call, but if you’re really itching, it might be your only shot before things turn bad again.
After that, it’s back to poor conditions with strong onshore wind until Wednesday the 16th. That morning, the swell drops to 3 ft from the SSW with a very long period of 18 seconds and moderate energy (1176). The wind is still onshore from the ENE at 19 mph, so it’s a tease. This long-period groundswell wants a point or reef to work, but the wind just ruins it.
The best chance comes Friday the 18th through Sunday the 20th. On the 18th, we get a 3 ft SSW groundswell with a 17-second period and moderate energy (925), but the wind is onshore from the NE at 19 mph. Saturday the 19th is similar with a 3 ft SSW swell, 16-second period, and lighter ENE wind at 12 mph. Sunday the 20th morning has a bit more size at 6 ft from the E, 8-second period, with that same light ENE breeze. The energy is moderate at 846. It’s still not great, but this is the best of a bad bunch. The lighter winds might give you a clean wave or two early in the day.
So, the standout, if you can call it that, is the weekend of the 19th and 20th. Saturday the 19th morning looks like the best of the whole forecast. That 3 ft SSW swell with the long 16-second period could produce some clean lines if the light ENE wind holds. It’s still onshore, but it’s the gentlest breeze we’ll get. Don’t expect much, but if you’re determined, that’s your moment.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun night. Warm (max 27°C on Sun afternoon, min 25°C on Sat morning). Winds decreasing (fresh winds from the NE on Sat afternoon, light winds from the ENE by Sun night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 25°C on Wed night). Winds increasing (light winds from the ESE on Wed morning, fresh winds from the ENE by Thu morning). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | ENE 7 | ENE 7 | ENE 7 | ENE 12 | ENE 12 | ENE 7 |
Wave Graph | |||||||||||||||||||||
1679 | 1641 | 1544 | 1240 | 1316 | 1461 | 1593 | 1009 | 1150 | 921 | 705 | 356 | 273 | 257 | 176 | 258 | 203 | 336 | 240 | 797 | 353 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | cross-on | cross | cross | cross-off | cross | on | on | on | on | on | on | on | on | on |
High Tide | 11:56AM0.64m | 12:39PM0.68m | 11:21PM0.29m | 1:14PM0.70m | 00:23AM0.35m | 1:44PM0.70m | 1:12AM0.41m | 2:10PM0.68m | 1:57AM0.46m | 2:33PM0.65m | 2:42AM0.50m | 2:52PM0.60m | 3:26AM0.53m | ||||||||
Low Tide | 4:19AM0.02m | 8:00PM0.22m | 5:27AM-0.01m | 7:55PM0.20m | 6:20AM-0.02m | 8:07PM0.17m | 7:05AM-0.01m | 8:24PM0.14m | 7:47AM0.03m | 8:43PM0.10m | 8:28AM0.08m | 9:04PM0.07m | |||||||||
6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | |
mm | — | — | — | — | 1 | 14 | 3 | 4 | 1 | — | 2 | 2 | 2 | — | — | — | — | — | — | — | 2 |
Temp °C | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 25 |
Feels °C | 24 | 25 | 25 | 25 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 30 | 29 | 27 | 26 | 24 | 22 | 23 | 24 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | ENE 13 | SSW 12 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | SW 14 | SW 14 | SW 11 | ENE 11 | ENE 9 | ENE 8 | ENE 8 | E 12 | E 12 | E 12 | E 12 | ENE 12 | SW 15 | SW 15 |
1679 | 589 | 1544 | 1240 | 1316 | 1461 | 1593 | 1550 | 3095 | 1347 | 705 | 320 | 197 | 149 | 148 | 141 | 141 | 190 | 240 | 232 | 226 | |
Swell 2 Height (m) Direction Period (s) | S 12 | SSE 9 | SSW 12 | SSW 11 | SSW 11 | SSW 12 | SW 14 | ENE 12 | ENE 12 | ENE 11 | SSW 9 | SSW 8 | SSW 8 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 16 | SW 16 | SSW 12 | S 11 |
661 | 47 | 497 | 337 | 302 | 275 | 1147 | 1009 | 1150 | 921 | 405 | 157 | 72 | 257 | 176 | 133 | 129 | 268 | 261 | 45 | 21 | |
Swell 3 Height (m) Direction Period (s) | NNE 10 | NNE 10 | NNE 9 | SSW 16 | SSW 19 | SSW 18 | SSW 17 | ENE 7 | SSW 15 | SSW 15 | W 10 | SSW 14 | SSW 14 | E 13 | SSW 7 | SSW 16 | SW 18 | SSW 12 | SSW 12 | SSE 8 | SSW 8 |
20 | 19 | 15 | 169 | 203 | 437 | 498 | 189 | 507 | 468 | 296 | 356 | 273 | 161 | 38 | 179 | 155 | 79 | 45 | 14 | 6 | |
Wind waves Height (m) Direction Period (s) | — | ENE 13 | — | — | — | — | — | SSE 7 | — | S 9 | — | — | — | — | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 12 | ENE 7 |
— | 1641 | — | — | — | — | — | 143 | — | 258 | — | — | — | — | 147 | 258 | 203 | 336 | 236 | 797 | 353 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 49 | 18 | 49 | 49 | 8 | 57 | 42 | 56 | 56 | 2 | 2 | 16 | 49 | 49 | 49 | 49 | 20 | 49 | 49 | 18 |
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.










