Surf Forecasts:
In Betweens surf forecast from 28 Aug 2026:
- Most powerful swell: Friday 4 Sep, 2PM (local time) - 7ft (2.1m), 11s period, ENE swell with 1,083 kJ wave energy.
Best Forecast Surf Conditions for In Betweens this week:
The most powerful waves expected at In Betweens in the next 16 days are 2.1m 11s and forecast to arrive on Friday (Sep 04) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Aug 28) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Fri 4th Sep) | 7ft (2.1m) 11s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
The Lowdown
Alright, grab ya board, let’s see what’s cookin’. We’re looking at In Betweens, a little reef slab that’s perfect for the learner crew. Water’s sittin’ at 81°F, which is about average for the season, so no complaints there.
Honestly, the next week or so is gonna test ya patience. There’s swell on the menu, but the wind is a stubborn ENE breeze, sittin’ in that cross-off zone. Ain’t terrible for shape, but the real killer is the period. From Friday the 28th right through the end of August, it’s all short-period, wind-affected junk. The energy is moderate on Friday morning with a reading of 506, but it’s weak and messy. Saturday the 29th and Sunday the 30th see the swell jump to 5ft to 7ft, but that period drops to a shocking 6 to 7 seconds. That’s all chop, no drive. And the wind is crankin’ at 20 to 25 mph, makin’ it a tough paddle for the little ones.
The first few days of September ain’t much better. The wind stays fresh, the swell stays messy. We see a spike in energy on Tuesday the 1st (1036 in the mornin’), but it’s still that short-period, wind-driven slop. Not the kinda day that puts a smile on ya face.
The real glimmer in this forecast is that long-range window. Thursday the 4th of September and Friday the 5th are lookin’ like the best on offer. The swell holds around 7ft to 7ft from the ENE, and the period finally stretches into the 10 to 12 second range. That’s real groundswell. The mornin’ of the 4th is showin’ a powerful 1230 combined energy. This is gonna have some grunt. In Betweens is a reef, so that longer period will wrap in nice. It’s gonna be punchy—definitely too big for the groms at that 7ft+ mark—but for the advancing beginner with a bit of bottle, it’ll be a fun, clean wave. Just watch them ENE winds that are still blowin’ cross-off at 18 mph; it’s fresh but workable.
Beware of the 10th of September. The models are spittin’ out some serious tropical energy—a severe gale from the ESE at 50 mph with heavy rain and a cross-shore wind. That’s a total washout. In Betweens will be a washing machine. Might look more fun for the kite surfers than a paddle boarder that day.
So to sum it up: the next week is mostly a write-off with short, wind-affected slop. The true standout is the mornin’ of Thursday the 4th of September with a solid 7ft groundswell from the ENE, decent period, and workable winds. That’s the one to circle on the calendar. Friday the 5th is a close second. After that, the window looks locked in wind and chop. Don’t hold ya breath for the rest.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri morning, min 25°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue morning. Warm (max 27°C on Tue afternoon, min 25°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | S 14 | S 14 | S 13 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | ENE 8 | ENE 8 | ENE 8 | E 12 |
Wave Graph | |||||||||||||||||||||
260 | 329 | 229 | 177 | 207 | 419 | 371 | 316 | 371 | 420 | 439 | 545 | 627 | 488 | 412 | 422 | 334 | 318 | 370 | 348 | 714 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:20PM0.62m | 4:47AM0.46m | 4:49PM0.57m | 5:30AM0.50m | 5:18PM0.51m | 6:18AM0.53m | 5:48PM0.44m | 7:14AM0.56m | 6:20PM0.36m | 8:21AM0.59m | 6:54PM0.28m | 9:39AM0.62m | 7:57PM0.22m | ||||||||
Low Tide | 9:46AM0.07m | 10:54PM0.07m | 10:31AM0.10m | 11:17PM0.05m | 11:22AM0.14m | 11:42PM0.05m | 12:22PM0.19m | 00:10AM0.05m | 1:40PM0.23m | 00:43AM0.05m | 3:38PM0.25m | 1:25AM0.06m | 6:22PM0.22m | 2:24AM0.08m | |||||||
6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — | |
— | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 23 | 24 | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 23 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | E 13 | E 12 | S 12 | SSW 16 | S 12 | SSW 15 | SSW 15 | SSW 14 | S 19 | SSW 18 | S 18 | S 17 | ENE 8 | S 16 | E 9 | S 14 | S 14 | E 12 |
260 | 329 | 229 | 126 | 110 | 102 | 171 | 100 | 199 | 144 | 138 | 192 | 329 | 314 | 280 | 315 | 322 | 133 | 206 | 195 | 714 | |
Swell 2 Height (m) Direction Period (s) | E 16 | E 15 | E 14 | S 13 | S 13 | E 12 | SSW 12 | SSW 16 | S 11 | S 11 | S 11 | S 10 | SW 14 | S 12 | S 13 | S 16 | SSE 11 | S 15 | E 13 | E 13 | S 13 |
78 | 109 | 146 | 85 | 89 | 106 | 46 | 162 | 59 | 59 | 55 | 32 | 50 | 49 | 52 | 422 | 38 | 279 | 121 | 153 | 176 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SSW 19 | SW 19 | S 13 | S 12 | SSW 17 | SSE 12 | W 11 | S 20 | S 21 | SSW 19 | SSW 14 | S 10 | SW 14 | SW 14 | SW 14 | E 15 | E 14 | SSE 10 | SSE 10 | ESE 13 |
22 | 36 | 56 | 89 | 75 | 186 | 48 | 9 | 30 | 34 | 122 | 79 | 30 | 51 | 51 | 30 | 38 | 91 | 20 | 34 | 17 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NNE 6 |
146 | 123 | 188 | 177 | 207 | 419 | 371 | 316 | 371 | 420 | 439 | 545 | 627 | 488 | 412 | 232 | 334 | 318 | 370 | 348 | 45 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 126 | 31 | 32 | 126 | 38 | 38 | 47 | 31 | 38 | 41 | 30 | 32 | 41 | 30 | 30 | 39 | 31 | 30 | 126 | 30 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the In Betweens Surf forecast
The above surf forecast table for In Betweens provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at In Betweens can be found by selecting the local surf guide option on the grey menu. Our In Betweens 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 (In Betweens) 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 In Betweens 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.
In Betweens is 4 km (2 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.











