
Surf Forecasts:
In Betweens surf forecast from 17 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 11PM (local time) - 3ft (0.9m), 19s period, SSW swell with 560 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 0.9m 19s and forecast to arrive on Thursday (Jul 23) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Jul 23) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 23rd Jul) | 3ft (0.9m) 19s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
The Lowdown
G’day, I’m Rusty, and here’s the latest on what’s comin’ for In Betweens over the next couple of weeks.
Right off the bat, we’ve got a bit of a slow start. The surf ain’t worth paddlin’ out for until Friday the 20th July, and even then it’s only marginal. The first real chance to wet your line comes on Monday morning the 20th, but the conditions are just okay – a cross-off wind from the ENE at 19 mph and a 4ft swell from the ENE with a short 8-second period, energy sitting at 551 (moderate). Not exactly pumpin’, but it’s clean. Monday afternoon sees a shift to a 3ft S swell, long 16-second period, energy up to 571 – still clean, but tiny. Tuesday the 21st is much the same: 3ft S swell, 14-second period, cross-off ENE breeze at 16 mph, and moderate energy around 547. We’re stuck in a bit of a lull here.
Then Wednesday the 22nd brings a different story. The swell drops to 2ft from the SSW, but the period blows out to a very long 24 seconds, and the energy jumps to 647 (moderate). The wind stays cross-off from the ENE at 19 mph. Thursday the 23rd continues with 2ft SSW swell, 20-second period, energy still strong at 751. The waves are small but that long period means proper groundswell lines – better suited for a point break or reef, but In Betweens is a reef, so it might just hold. The water sits at 80°, which is bang on average for the time of year.
Friday the 24th we see a spike in size: 6ft from the ENE in the morning, 7-second period, energy 860 (moderate to strong). Still cross-off ENE wind at 19 mph. The afternoon swings to 3ft from the SSW, 17-second period, and energy jumps to 1080 (strong). Saturday the 25th holds around 3ft to 3ft SSW swell, long 19-20 second periods, and energy climbs to 1324 then 1355 – strong energy. The wind stays cross-off and fresh. Sunday the 26th morning sees 3ft SSW swell, 17-second period, energy 1563 (strong). The afternoon shifts to 4ft from the E, 17-second period, energy 1566. It’s clean but the cross-off breeze is a bit stiff.
Now, the standout window arrives around Monday the 27th and Tuesday the 28th July. Monday morning: 5ft from the E, 16-second period, energy 1992 (very strong). Monday afternoon: 6ft from the E, 16-second period, energy 2341 (very strong). Tuesday the 28th morning is the pick: 8ft from the ENE, 14-second period, energy 3062 (very strong). That’s a solid groundswell – but at 8ft, it’s only for experienced surfers. The wind is cross-off from the NE at 16 mph, so it’ll be clean. Crowds are listed as “sometimes,” so you might get a few heads out but not a circus. The swell direction (ENE) matches the optimum swell direction (SSE) reasonably enough for this reef to line up. This is the best on offer: big, powerful, and clean. Wednesday the 29th settles back to 6ft E swell, 12-second period, energy 1080, still a solid session.
The second week loses some certainty, but there’s still a pulse. Thursday the 30th: 6ft from the ENE, 12-second period, energy 1029. Friday the 31st drops off quick: 1ft SSW swell, 16-second period, energy just 146 – poor. Saturday the 1st August is tiny, 2ft SW swell, 14-second period, energy 199, with a light ENE breeze at 6 mph. Not much to get excited about overall.
Overall, the best bet is Monday the 27th and Tuesday the 28th July – that’s when the energy peaks and the swell gets meaty. The long-period groundswell earlier in the week is interesting but small. For the rest, it’s a lot of cross-off wind and average size. Keep an eye on that Tuesday the 28th if you’ve got the skills.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Fri morning, min 24°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 24°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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) | SW 16 | SSW 16 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 15 | S 14 | S 14 | S 13 | SSW 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 |
Wave Graph | |||||||||||||||||||||
130 | 196 | 189 | 316 | 346 | 357 | 225 | 243 | 232 | 191 | 321 | 339 | 329 | 307 | 273 | 317 | 426 | 363 | 412 | 395 | 464 | |
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 | 6:36PM0.61m | 7:44AM0.34m | 7:11PM0.52m | 8:53AM0.38m | 7:45PM0.43m | 10:04AM0.43m | 8:19PM0.34m | 11:13AM0.49m | 8:56PM0.27m | 12:12PM0.54m | 10:06PM0.22m | 1:02PM0.59m | 11:46PM0.19m | ||||||||
Low Tide | 11:44AM0.08m | 1:42AM0.01m | 12:46PM0.16m | 2:15AM0.02m | 2:03PM0.22m | 2:48AM0.03m | 3:52PM0.27m | 3:23AM0.04m | 6:20PM0.26m | 4:02AM0.05m | 8:25PM0.21m | 9:13PM0.17m | |||||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 26 | 25 | 26 | 26 | 24 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 |
Feels °C | 25 | 23 | 24 | 22 | 22 | 21 | 23 | 24 | 24 | 23 | 24 | 24 | 25 | 24 | 24 | 23 | 24 | 23 | 22 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | W 14 | SSW 16 | SSW 14 | SSW 13 | SSW 14 | S 12 | S 12 | S 13 | SSW 12 | S 14 | S 16 | ENE 7 | ENE 7 | S 14 | S 13 | S 13 | E 11 | S 13 | SSW 20 | SSW 20 | SSW 18 |
144 | 196 | 147 | 141 | 158 | 112 | 73 | 89 | 44 | 142 | 321 | 168 | 108 | 307 | 273 | 126 | 191 | 155 | 412 | 395 | 464 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | W 14 | W 13 | WNW 13 | WNW 13 | W 13 | S 19 | S 18 | S 18 | S 16 | SW 18 | S 15 | S 14 | SW 16 | E 11 | S 11 | S 13 | SSW 22 | E 12 | S 11 | S 11 |
125 | 98 | 90 | 57 | 56 | 28 | 66 | 106 | 97 | 135 | 81 | 339 | 329 | 68 | 61 | 83 | 272 | 363 | 103 | 125 | 56 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SW 15 | SE 8 | SSE 9 | SSE 9 | W 12 | SSE 6 | NE 8 | SW 18 | W 12 | SW 16 | E 12 | E 11 | SW 15 | SSW 24 | SSW 23 | E 12 | S 12 | SW 16 | S 13 |
55 | 55 | 58 | 17 | 8 | 15 | 25 | 7 | 15 | 83 | 11 | 69 | 45 | 40 | 60 | 317 | 426 | 108 | 97 | 127 | 85 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | — | E 7 | ENE 7 | ENE 7 | ENE 7 | — | ENE 6 | ENE 6 | ENE 6 | E 7 |
130 | 154 | 189 | 316 | 346 | 357 | 225 | 243 | 232 | 191 | 169 | — | 65 | 117 | 132 | 121 | — | 170 | 139 | 176 | 377 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 38 | 1 | 38 | 38 | 33 | 30 | 32 | 1 | 30 | 30 | 1 | 30 | 2 | 30 | 30 | 30 | 30 | 32 | 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.










