
Surf Forecasts:
In Betweens surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 8AM (local time) - 3ft (0.9m), 19s period, SSW swell with 627 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 Saturday (Jul 25) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Jul 22) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 25th Jul) | 3ft (0.9m) 19s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's chew the fat on what's coming for In Betweens.
For the next couple of weeks, it's looking like a proper struggle to find a clean wave. The water temp is 80°, which is dead average for the time of year, so the rubber stays at home.
The first real chance to paddle out looks to be Monday, July 20th. It's pretty marginal, with waves around 4ft from the ENE. The wind is a cross-off at 16 mph, so it's rideable but messy. The energy is at 551 (moderate), but the period is a short 8 seconds, so don't expect much shape.
Tuesday the 21st flips things. The wave height drops to 3ft, but it swings around from the south with a long period of 14 seconds. The energy is 531 (moderate). That long period means cleaner lines, but it's still small. The wind stays cross-off out of the ENE at 12 mph.
Now, the true standout on offer is pointing to Monday the 27th and Tuesday the 28th of July. That's a week and a half out, so take it with a pinch of salt, but here’s the picture. The swell builds to 7ft from the east, with a long 15 to 16 second period. The combined energy is a thumping 2021 (very strong). The wind will be cross-off from the ENE at 16 to 19 mph. This is a proper groundswell. That size and period at a reef break like In Betweens will have some punch. For experienced surfers only at 7ft. The waves will have plenty of power and shape, but those longer periods can make them suck a bit harder on the reef.
After that, Wednesday the 29th drops back to 6ft from the ENE, still cross-off, with energy falling to 850 to 980. The start of August just looks like back to the same old story: short-period, wind-affected slop. The ENE wind stays howling at 19 to 25 mph with swell hanging around 6ft to 7ft, but the energy levels stay moderate and the surf quality is just poor.
So, the only one to circle on the calendar is that late July window. The rest is a battle with the breeze.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Winds decreasing (strong winds from the ENE on Sat afternoon, light winds from the ENE by Mon night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 24°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 15 | S 14 | S 14 | S 13 | ENE 7 | SSW 23 | ENE 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | ENE 7 |
Wave Graph | |||||||||||||||||||||
360 | 385 | 353 | 333 | 238 | 257 | 191 | 321 | 339 | 329 | 307 | 273 | 149 | 426 | 609 | 412 | 395 | 464 | 329 | 428 | 369 | |
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 | 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 | 1:44PM0.62m | 00:59AM0.18m | ||||||||
Low Tide | 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 | 5:34AM0.05m | 9:41PM0.14m | |||||||||
5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 24 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 |
Feels °C | 22 | 21 | 21 | 22 | 21 | 23 | 24 | 24 | 24 | 25 | 23 | 24 | 22 | 22 | 24 | 21 | 21 | 22 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | S 12 | SSW 13 | SSW 13 | SSW 12 | S 14 | S 16 | S 15 | S 14 | S 14 | S 13 | E 12 | E 11 | S 13 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
141 | 158 | 112 | 93 | 95 | 45 | 142 | 321 | 339 | 329 | 307 | 273 | 136 | 87 | 157 | 412 | 395 | 464 | 329 | 428 | 298 | |
Swell 2 Height (m) Direction Period (s) | WNW 13 | WNW 13 | W 12 | S 19 | S 18 | S 18 | S 16 | SW 18 | SW 16 | SW 17 | SW 16 | E 13 | S 13 | SSW 23 | SSW 22 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 |
57 | 56 | 28 | 66 | 106 | 97 | 135 | 81 | 69 | 72 | 67 | 119 | 128 | 426 | 363 | 97 | 89 | 55 | 143 | 102 | 305 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | SSE 9 | SSE 9 | NNE 8 | W 12 | NNE 8 | SW 18 | W 12 | E 12 | E 12 | E 11 | SW 15 | S 11 | S 13 | SW 18 | SSW 16 | SW 16 | S 13 | SSW 15 | S 21 | S 12 |
55 | 16 | 8 | 11 | 25 | 23 | 83 | 11 | 12 | 25 | 39 | 60 | 57 | 125 | 150 | 100 | 127 | 85 | 91 | 231 | 100 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 12 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
360 | 385 | 353 | 333 | 238 | 257 | 191 | 214 | 144 | 105 | 108 | 132 | 149 | 129 | 609 | 298 | 256 | 385 | 200 | 263 | 369 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 38 | 30 | 30 | 44 | 1 | 30 | 30 | 1 | 30 | 30 | 30 | 31 | 41 | 30 | 38 | 44 | 30 | 38 | 38 | 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.










