
Surf Forecasts:
Keaulanas surf forecast from 14 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 5PM (local time) - 2.5ft (0.8m), 14s period, SSW swell with offshore winds.
- Most powerful swell: Monday 20 Jul, 2PM (local time) - 2.5ft (0.8m), 16s period, S swell with 330 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 8PM (local time) - 3ft (0.9m), 14s period with SW swell.
Best Forecast Surf Conditions for Keaulanas this week:
The surf forecast for Keaulanas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 13) at 8PM. The primary swell is predicted to be 0.9m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Keaulanas in the next 16 days are 0.8m 16s and forecast to arrive on Monday (Jul 20) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Saturday (Jul 18) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 13th Jul) | 3ft (0.9m) 14s |
| Best Surf | 5PM (Tue 14th Jul) | 2.5ft (0.8m) 14s |
| Most Powerful | 2PM (Mon 20th Jul) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break it down.
The next couple of weeks are all about Keaulanas. It’s not pumping huge, but it’s steady, and there are plenty of clean windows with that offshore flow. Water temp is sitting at 80°, right around normal for this time of year – nothing weird, just your standard warm summer water.
We start on Monday the 13th. The afternoon is looking good with a clean 3ft swell out of the southwest and a 15-second period. That’s real groundswell, and with ENE winds blowing offshore at 16 mph, it’ll be well groomed. The combined energy is 405 (moderate), so there’s some push. It’s not big, but it’s clean and lined up.
Tuesday the 14th keeps it going. The morning has 3ft from the south-southwest, with lighter offshore winds at 9 mph, making for a really tidy setup. The afternoon steps it up – 2ft from the west with a 16-second period, and the energy jumps to 582 (moderate). That afternoon session is the pick of the first few days – glassy, offshore, and a little extra grunt.
Wednesday the 15th and Thursday the 16th stay similar. Swells sit around 2ft to 3ft, mostly from the west, with light cross-offshore winds. It stays clean, but the energy drops through Thursday afternoon. By Friday the 17th, things start to fade. The swell drops to 2ft, and while the wind is still cross-offshore, the quality takes a hit. Saturday the 18th and Sunday the 19th are small and weak – Sunday morning has energy down to just 99 (weak). That’s a real lull.
But don’t lose hope. Monday the 20th brings a new south swell, 2ft with a 16-second period, and those ENE offshore winds are back. The energy builds to 374 by the afternoon. It’s not big, but it’s clean and groomed. Then Tuesday the 21st is the standout of the whole run. The swell pushes up to 3ft out of the south, with a 14-second period, and the morning has only a light 6 mph offshore wind. The energy is 445 (moderate), and it’s clean. That’s the one to mark.
The middle of the second week – Wednesday the 22nd through Friday the 24th – keeps things interesting. Wednesday afternoon has 3ft from the south with a 13-second period, 529 energy (moderate), and gentle offshore winds. Friday morning the 24th is also strong, with 2ft from the south-southwest, 18-second period, and 540 energy (moderate), with a steady 12 mph offshore breeze. That’s a really clean, punchy setup for the more experienced crew.
After that, it tails off again. Saturday the 25th and Sunday the 26th have smaller swell, still clean in the mornings, but nothing special. By Monday the 27th, the wind swings around to the south and we get cross-onshore and even a risk of thunderstorms – that’s the end of the good run. Tuesday the 28th is flat and glassy, with only 1ft and next to no energy.
So, to sum it up: the best sessions are Tuesday afternoon the 14th, Tuesday morning the 21st, and Friday morning the 24th. If I had to pick one, I’d go with Tuesday the 21st morning – 3ft south swell, light offshores, clean, consistent. That’s the one you don’t want to miss.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue morning. Warm (max 27°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SSW 14 | SSW 14 | SSW 14 | W 15 | W 15 | W 15 | SSW 16 | W 14 | W 14 | SSW 14 | W 14 | SSW 16 | SSW 14 | SSW 13 | SSW 14 | SSW 12 | S 13 | S 18 | S 18 | S 16 |
Wave Graph | |||||||||||||||||||||
309 | 261 | 236 | 257 | 229 | 291 | 283 | 314 | 203 | 203 | 200 | 144 | 196 | 145 | 141 | 158 | 81 | 81 | 106 | 152 | 190 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | off | off | off |
High Tide | 3:45PM0.84m | 3:22AM0.24m | 4:27PM0.83m | 4:16AM0.26m | 5:06PM0.79m | 5:13AM0.30m | 5:42PM0.73m | 6:12AM0.34m | 6:15PM0.65m | 7:16AM0.38m | 6:44PM0.56m | 8:28AM0.42m | 7:08PM0.48m | 9:44AM0.47m | |||||||
Low Tide | 11:16PM0.12m | 8:47AM-0.02m | 11:49PM0.11m | 9:36AM0.01m | 00:21AM0.10m | 10:26AM0.06m | 00:52AM0.10m | 11:17AM0.14m | 1:21AM0.10m | 12:14PM0.22m | 1:50AM0.10m | 1:25PM0.30m | 2:19AM0.10m | ||||||||
— | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | |
7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | 7:15 | |
mm | — | — | 1 | 1 | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 25 | 27 | 28 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 |
Feels °C | 25 | 25 | 26 | 26 | 25 | 28 | 28 | 26 | 28 | 27 | 25 | 27 | 27 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 15 | NNE 7 | NNE 7 | SSW 14 | NNE 7 | NE 7 | NNE 8 | SSW 16 | NE 7 | NE 7 | SSW 14 | NE 7 | SSW 16 | SSW 14 | SSW 13 | SSW 14 | SSW 12 | S 13 | S 13 | S 11 | NE 7 |
309 | 78 | 105 | 232 | 86 | 75 | 72 | 314 | 62 | 69 | 180 | 69 | 196 | 145 | 141 | 158 | 81 | 81 | 89 | 65 | 54 | |
Swell 2 Height (m) Direction Period (s) | W 18 | SSW 14 | SSW 14 | W 16 | W 15 | W 15 | W 15 | NNE 8 | W 14 | W 14 | W 14 | W 14 | W 14 | NNE 7 | WNW 13 | WNW 13 | SSW 14 | SW 8 | S 18 | S 18 | S 16 |
96 | 261 | 236 | 257 | 229 | 291 | 283 | 74 | 203 | 203 | 200 | 144 | 140 | 42 | 57 | 57 | 66 | 18 | 106 | 152 | 190 | |
Swell 3 Height (m) Direction Period (s) | SSE 11 | W 18 | W 16 | SW 19 | SW 13 | SW 13 | SSW 12 | W 15 | SSW 13 | SSW 13 | SSW 18 | SSW 12 | SSW 12 | W 13 | SW 15 | ESE 8 | WNW 12 | SE 8 | WNW 12 | SW 19 | SSW 12 |
25 | 152 | 190 | 93 | 170 | 162 | 96 | 275 | 113 | 149 | 102 | 94 | 55 | 90 | 55 | 13 | 51 | 17 | 29 | 92 | 78 | |
Wind waves Height (m) Direction Period (s) | NE 7 | — | E 8 | NNE 7 | — | ESE 6 | SE 5 | — | — | ENE 6 | NE 7 | — | NE 7 | E 6 | NE 7 | NE 7 | NE 6 | NE 7 | NE 7 | NE 6 | E 8 |
96 | — | 121 | 96 | — | 48 | 6 | — | — | 68 | 67 | — | 57 | 41 | 105 | 75 | 78 | 102 | 89 | 56 | 111 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 0 | 5 | 5 | 0 | 0 | 6 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Keaulanas Surf forecast
The above surf forecast table for Keaulanas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Keaulanas can be found by selecting the local surf guide option on the grey menu. Our Keaulanas 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 (Keaulanas) 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 Keaulanas 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.
Keaulanas is 7 km (4 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.











