Surf Forecasts:
In Betweens surf forecast from 30 Aug 2026:
- Most powerful swell: Saturday 5 Sep, 2PM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,351 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 3.0m 8s and forecast to arrive on Saturday (Sep 05) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 5th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
The Lowdown
G’day, Rusty here. Lookin’ at the charts for In-Betweens over the next couple of weeks, and I gotta be straight with ya – it’s a tough run. There’s surf on offer, but the wind is just about always blowin’ cross-off from the ENE, and that’s workin’ against the quality. The swell’s comin’ in from the ENE too, which ain’t the optimum SSE direction for this reef break, so the waves are gonna be lumpy and uninvitin’ for a paddle. We’re lookin’ at a stretch where the scores are real low, and the best we can hope for is a few marginal sessions.
The water temp’s sittin’ around 81°F with a +0.7°F anomaly, so pretty average for this time of year – no excuses there.
The first few days, from Saturday the 29th of August through to Tuesday the 1st of September, are basically a write-off. Swell’s around 5ft to 6ft, but the wind is a stiff 18 to 25 mph from the ENE, and the period’s a short, weak 6 to 8 seconds. The combined energy’s moderate, between 440 and 881, but it’s all messy. The surf’s labelled “poor” or “marginal at best,” so you’re better off savin’ your energy.
Wednesday the 2nd of September sees a weird shift – a 3ft swell from the S with a long 16-second period, energy at 812 (moderate). That’s a groundswell, and on a reef like this, those long-period lines could wrap in nicely. Problem is, the wind is still cross-off from the ENE at 18 mph, and the swell’s tiny. It’s a tease, but not worth paddlin’ out for.
The following week, from the 3rd to the 9th of September, is more of the same grind. Swell stays around 6ft to 8ft from the ENE, with short periods (7 to 9 seconds) and wind that won’t let up. The standout moment in this whole forecast is the afternoon of Sunday the 13th of September. We’ve got 6ft swell from the ENE at 8 seconds, but the wind drops to a light breeze at 6 mph, and the report says “expect very good surf conditions” with a score of 3. The combined energy is moderate (543), and the breeze is light, makin’ it the cleanest window we’ll see. It’s far out, but if you can wait, that’s your best bet.
Before that, on Saturday the 12th of September, the morning shows 8ft ENE swell with a 9-second period and a moderate breeze (15 mph), giving a combined energy of 1529 – that’s strong wave energy. It’s still cross-off, so it’ll be a bit raw, but for a bigger-wave session with some push, it’s worth a look. The 8ft is on the edge for beginners, but for anyone with experience, it’s got some grunt.
Overall, this is a long stretch of poor to marginal surf with persistent cross-off winds. The only real highlight is that Sunday the 13th afternoon, and even then, it’s a gamble that far out. Most days, the setup looks more suited to a kite than a paddle, given the strong winds and clean, lumpy conditions. Hang in there, mate – it’s a dry spell, but forecasts can change.
Rusty
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 26°C on Sat morning, min 25°C on Sat morning). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 | ENE 7 | 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 7 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph | |||||||||||||||||||||
172 | 166 | 444 | 383 | 348 | 265 | 387 | 353 | 410 | 382 | 441 | 582 | 422 | 318 | 379 | 383 | 322 | 319 | 311 | 334 | 560 | |
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 | 4:49PM0.57m | 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 | 10:58AM0.66m | 10:35PM0.19m | ||||||||
Low Tide | 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 | 7:30PM0.17m | 3:46AM0.09m | |||||||
6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | |
— | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 23 | 23 | 22 | 22 | 22 | 24 | 23 | 23 | 23 | 24 | 23 | 23 | 25 | 25 | 25 | 23 | 23 | 22 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | E 13 | E 12 | S 12 | SSW 16 | S 12 | SSW 15 | SSW 15 | SSW 14 | S 19 | SSW 18 | S 18 | S 17 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 | E 13 | E 13 | E 12 |
126 | 110 | 102 | 171 | 100 | 199 | 144 | 138 | 192 | 329 | 314 | 364 | 422 | 318 | 279 | 268 | 195 | 176 | 215 | 206 | 105 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | E 12 | SSW 12 | SSW 16 | S 11 | S 11 | S 11 | S 10 | SSW 14 | S 12 | S 10 | SSE 10 | S 11 | E 13 | E 13 | E 12 | E 12 | S 13 | S 13 | S 13 |
85 | 89 | 106 | 46 | 162 | 59 | 82 | 55 | 51 | 80 | 75 | 35 | 34 | 58 | 125 | 165 | 107 | 71 | 170 | 121 | 119 | |
Swell 3 Height (m) Direction Period (s) | S 13 | S 12 | SSW 17 | SSE 12 | W 11 | ENE 10 | S 21 | SSW 19 | SW 14 | SSE 10 | SW 14 | SW 14 | SW 14 | E 14 | S 11 | SSE 10 | S 10 | E 14 | W 11 | SSW 13 | SSW 20 |
89 | 75 | 186 | 48 | 9 | 37 | 34 | 122 | 54 | 31 | 51 | 51 | 30 | 64 | 61 | 33 | 31 | 65 | 2 | 17 | 37 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | 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 7 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
172 | 166 | 444 | 383 | 348 | 265 | 387 | 353 | 410 | 382 | 441 | 582 | 326 | 267 | 379 | 383 | 322 | 319 | 311 | 334 | 560 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 41 | 126 | 38 | 41 | 30 | 38 | 41 | 30 | 31 | 126 | 30 | 30 | 39 | 31 | 30 | 129 | 30 | 126 | 129 | 39 |
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.











