
Surf Forecasts:
In Betweens surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 2AM (local time) - 2.5ft (0.7m), 20s period, S swell with 365 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 0.7m 20s and forecast to arrive on Wednesday (Aug 12) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Aug 07) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 12th Aug) | 2.5ft (0.7m) 20s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let’s have a look at what’s cookin’ for In-Betweens over the next couple of weeks.
Honestly, the outlook is a tough one for the first week or so. The swell is all over the place, and the wind is a constant cross-off from the ENE, which keeps things clean but not exactly groomed for peak performance. The first few days are a write-off, with tiny waves or poor conditions. Wednesday the 5th has some small 4ft ENE swell, but the energy is weak (347) and the conditions are only marginal. Thursday and Friday are even worse, with tiny 1ft SSW/SW swells and poor surf. Saturday the 8th sees a bump in size to 6ft, but it’s short-period windswell (6-7 seconds) and the energy is moderate (519), but the quality is still poor or marginal. This pattern of marginal, poor, and not-so-great quality continues right through the first week and into the second. The waves are mostly short-period windswell, with a few longer-period S and SSW groundswells popping up mid-week, but they’re tiny (2ft-4ft) and the wind is still strong.
Now, here’s where it gets interesting. The last few days of the outlook, from the 17th of August onwards, the swell really starts to pump. We’re looking at consistent 8ft to 10ft ENE swell, with moderate energy readings (starting around 978 and climbing to over 1500). The period is still short (8-9 seconds), so it’s windswell, not groundswell, and the wind is still a strong cross-off from the ENE. At these sizes, this is getting into expert territory – over 8ft, it’s only for the skilled crew. The best window looks like the 18th and 19th of August, with 10ft to 8ft ENE swell, fresh breeze cross-off wind, and the highest energy readings (1499 and 1537). The scores are still low, but this is the best we’ve got. The water temperature is about average for the time of year.
In-Betweens is a reef setup, fairly consistent, and it’s exposed to the swell. The optimum swell direction is SSE, but all the swell we’re getting is from ENE, so it’s not the perfect angle. The cross-off wind keeps the surface clean, but the short period and strong wind mean the waves will be bumpy and a bit messy. It’s worth a look for the dedicated, but don’t expect perfection. Crowds are possible, so be ready for a few others out there.
So, to wrap it up: the first week is a dud. The second week has some real size, with the 18th and 19th of August being the standout days for the big wave hunters. It’s a messy, powerful windswell, but energy is high and the wind is offshore. If you’re an expert, get out there. If you’re a beginner, stay home.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue night, min 24°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sat morning, min 25°C on Fri night). Mainly fresh winds. | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 10 | ENE 10 | ENE 9 | ENE 9 | SSW 14 | SSW 14 | SW 14 | SW 21 | SW 20 | SSW 19 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph | |||||||||||||||||||
358 | 253 | 203 | 238 | 81 | 80 | 102 | 115 | 99 | 148 | 226 | 227 | 212 | 289 | 305 | 302 | 286 | 261 | 215 | |
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 | 10:11AM0.53m | 8:07PM0.29m | 11:24AM0.60m | 9:30PM0.22m | 12:27PM0.67m | 11:32PM0.19m | 1:22PM0.73m | 00:59AM0.19m | 2:10PM0.78m | 2:02AM0.22m | 2:54PM0.80m | 2:55AM0.26m | |||||||
Low Tide | 2:23AM0.03m | 5:19PM0.27m | 3:10AM0.03m | 7:39PM0.21m | 4:08AM0.02m | 8:34PM0.16m | 5:14AM0.01m | 9:09PM0.12m | 6:20AM-0.01m | 9:40PM0.08m | 7:20AM-0.02m | 10:10PM0.06m | |||||||
— | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
7:07 | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 26 | 25 | 25 | 26 | 25 | 25 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 23 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | SSW 15 | SSW 14 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 17 | SSW 12 | SSW 16 | SSW 15 | SSW 15 | SSW 15 |
358 | 253 | 88 | 82 | 45 | 42 | 32 | 21 | 73 | 107 | 113 | 101 | 99 | 159 | 86 | 198 | 184 | 176 | 186 | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 11 | SSE 12 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SW 20 | SSW 19 | SW 18 | SW 18 | SW 18 | SSW 13 | SSW 16 | SSW 12 | SSW 12 | SSE 9 | SSE 9 |
47 | 38 | 39 | 48 | 81 | 80 | 102 | 77 | 99 | 148 | 162 | 154 | 150 | 96 | 102 | 56 | 56 | 34 | 32 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | SSE 13 | SSE 12 | SSW 10 | SSE 11 | S 11 | SSE 11 | SW 21 | S 11 | NE 11 | SSE 10 | SSE 10 | NE 9 | SSE 10 | SSW 18 | SSE 10 | SSE 10 | SSW 11 | SSW 11 |
57 | 56 | 49 | 19 | 25 | 22 | 40 | 115 | 20 | 30 | 18 | 19 | 27 | 19 | 102 | 18 | 37 | 25 | 23 | |
Wind waves Height (m) Direction Period (s) | — | — | ENE 9 | ENE 9 | ENE 6 | ENE 6 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
— | — | 203 | 238 | 68 | 57 | 32 | 40 | 63 | 122 | 226 | 227 | 212 | 289 | 305 | 302 | 286 | 261 | 215 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 30 | 1 | 30 | 38 | 38 | 30 | 30 | 34 | 30 | 30 | 30 | 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.











