Surf Forecasts:
In Betweens surf forecast from 31 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 11PM (local time) - 4.5ft (1.4m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 5AM (local time) - 10ft (3.0m), 8s period, E swell with 1,220 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 11PM (local time) - 4.5ft (1.4m), 10s period with ENE swell.
Best Forecast Surf Conditions for In Betweens this week:
The surf forecast for In Betweens over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 11PM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.4m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at In Betweens in the next 16 days are 3.0m 8s and forecast to arrive on Saturday (Aug 01) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Aug 06) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 4th Aug) | 4.5ft (1.4m) 10s |
| Best Surf | 11PM (Tue 4th Aug) | 4.5ft (1.4m) 10s |
| Most Powerful | 5AM (Sat 1st Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
The Lowdown
Alright, let’s look at what’s coming up on the home stretch. The first week is a tough sell, I’m not gonna lie.
We’re on In Betweens, a reef break that normally breaks pretty consistently, but from Friday, July 31 through most of the first week, the wind is howling from the ENE at 25-28 mph, cross-off, so the surface is clean, but that swell is just junk – short period, about 8 seconds, messy, with moderate wave energy (893). The swell runs from 6ft up to 10ft on Saturday, but with that short period the waves are fat and crumbly. This is not good surfing. The scores are just zero. Beginners might be okay in the smaller stuff, but there’s no quality for anyone.
Tuesday, August 4, there’s a tiny lift. Swell period jumps to 11 seconds (longer groundswell, more shape, better energy) and the combined energy hits 653. Wind drops to 9 mph, still cross-off, and the swell is 5ft from the ENE. It’s only marginal, not a standout, but it’s the best of a bad first week. The water temp is pretty normal for this time of year.
From August 6 right through to August 10, it’s back to poor – short period slop again, energy under 300 in some spots. There’s about four or five days in a row there where you’re better off doing something else.
Now, the real standout happens on Friday, August 14 – that’s over a week away, so keep your eye on it. The swell swings to the SSE, which is the sweet spot for this break. Swell size is only 2ft, but the period jumps to 19 seconds – that’s deep-ocean groundswell. The wind goes glassy, 3 mph from the NNE, so the surface will be like glass. Combined energy is moderate (490). For a reef break, that long period will wrap around and give you long, smooth walls. It’s a small day, perfect for a log or a fish. Then Saturday, August 15 morning also looks promising, with a 3ft SSW swell, 16-second period, and very light crosswind (6 mph). Clean, long lines.
So here’s the bottom line: the first week is a write-off – windy, short-period slop. You get a mediocre window on August 4. The real gem is the morning of Friday, August 14: glassy, long-period SSE groundswell, perfect reef. That’s your day.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 26°C on Thu night, min 25°C on Fri night). Winds increasing (light winds from the ENE on Thu night, strong winds from the ENE by Fri night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 24°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 | ENE 8 | ENE 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 | SSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 245 | 375 | 469 | 1130 | 1220 | 871 | 889 | 844 | 722 | 541 | 394 | 321 | 811 | 593 | 505 | 373 | 280 | 218 | 81 |
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 |
High Tide | 5:11AM0.31m | 5:26PM0.64m | 5:57AM0.34m | 5:55PM0.59m | 6:49AM0.38m | 6:24PM0.52m | 7:47AM0.42m | 6:55PM0.44m | 8:56AM0.47m | 7:27PM0.36m | 10:11AM0.53m | 8:07PM0.29m | |||||||
Low Tide | 11:58PM0.07m | 10:29AM0.06m | 00:22AM0.06m | 11:14AM0.11m | 00:48AM0.05m | 12:06PM0.16m | 1:15AM0.04m | 1:14PM0.22m | 1:46AM0.04m | 2:52PM0.27m | 2:23AM0.03m | 5:19PM0.27m | 3:10AM0.03m | ||||||
 |  | |  | | | |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 7:10 | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 27 | 24 | 22 | 21 | 20 | 21 | 22 | 23 | 22 | 22 | 24 | 24 | 23 | 27 | 28 | 27 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | E 7 | S 12 | 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 | ENE 10 | SSW 11 | ENE 9 | ENE 8 |
| kJ | 245 | 153 | 301 | 205 | 127 | 196 | 194 | 188 | 192 | 125 | 80 | 117 | 811 | 593 | 505 | 373 | 40 | 218 | 61 |
Swell 2 Height (m) Direction Period (s) | S 13 | E 15 | SW 15 | SW 15 | S 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSE 14 | SSW 11 | SW 16 | SSW 15 | SSE 12 |
| kJ | 166 | 159 | 239 | 176 | 42 | 123 | 131 | 133 | 68 | 56 | 32 | 32 | 49 | 46 | 65 | 48 | 61 | 88 | 49 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 16 | S 12 | S 12 | S 15 | S 11 | S 11 | N 9 | N 9 | SW 13 | SW 13 | SW 12 | SSE 9 | SSE 8 | SSW 12 | SW 15 | SSE 13 | SSW 11 | SSW 14 |
| kJ | 177 | 206 | 106 | 72 | 5 | 39 | 22 | 15 | 14 | 42 | 42 | 38 | 8 | 14 | 44 | 57 | 56 | 39 | 81 |
Wind waves Height (m) Direction Period (s) | — | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | — | — | — | ENE 9 | — | ENE 6 |
| kJ | — | 375 | 469 | 1130 | 1220 | 871 | 889 | 844 | 722 | 541 | 394 | 321 | 212 | — | — | — | 280 | — | 69 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 41 | 127 | 41 | 156 | 129 | 129 | 44 | 156 | 30 | 2 | 33 | 1 | 1 | 1 | 0 | 1 | 1 | 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.
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