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Surf Forecasts:
In Betweens surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 7 pm Friday 20 Mar 2026 HSTForecast update in hr min s Forecast update imminent
In Betweens surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's In Betweens sea temperature is
24.6° C
(Which is normal for this time of year)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 Sunday (Mar 22) at 8PM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.4m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at In Betweens in the next 16 days are 2.1m 9s and forecast to arrive on Thursday (Mar 26) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Tuesday (Mar 24) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 22nd Mar) | 2.5ft (0.7m) 16s |
| Best Surf | 8PM (Sun 22nd Mar) | 2.5ft (0.7m) 16s |
| Most Powerful | 8PM (Thu 26th Mar) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 48mm), heaviest during Sun afternoon. Warm (max 25°C on Sat morning, min 22°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Mon night. Warm (max 23°C on Tue afternoon, min 22°C on Mon night). Winds increasing (light winds from the NNE on Mon night, strong winds from the NE by Tue night). | |||||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Fri 27 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 19 | 18 | 18 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 8 | 8 | 14 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 246 | 211 | 319 | 267 | 229 | 226 | 255 | 193 | 140 | 138 | 134 | 92 | 68 | 43 | 42 | 42 | 43 | 43 | 444 | 327 | 150 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | 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 / height (m) | 5:14AM 0.32 | 6:25PM 0.57 | 5:50AM 0.24 | 7:25PM 0.58 | 6:32AM 0.17 | 8:35PM 0.58 | 7:40AM 0.12 | 9:53PM 0.58 | 10:09AM 0.09 | 11:08PM 0.58 | 12:04PM 0.13 | 12:11AM 0.58 | 1:06PM 0.19 | |||||||||
Low Tide / height (m) | 12:00AM 0.06 | 11:18AM -0.07 | 1:13AM 0.10 | 11:50AM -0.06 | 2:50AM 0.12 | 12:28PM -0.04 | 5:02AM 1:19PM 0.10 -0.00 | 6:33AM 0.06 | 2:39PM 0.03 | 7:17AM 0.03 | 4:22PM 0.05 | 7:48AM 0.00 | 5:51PM 0.05 | |||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Fri 27 | ||||||||||||||||
| Sunrise | - | 6:33 | - | - | 6:33 | - | - | 6:31 | - | - | 6:31 | - | - | 6:31 | - | - | 6:30 | - | - | 6:28 | - | |
| Sunset | - | - | 6:42 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:44 | - | - | 6:44 | |
 |  |  |  | | | | | | |  | | |  | |  | | |  | | | ||
Rain (mm) | 4 | 5 | 8 | 9 | 2 | 7 | 8 | 2 | 3 | 2 | - | - | 1 | - | - | - | - | - | - | - | - | |
| Temp. °C | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | |
| Feels °C (?) | 23 | 26 | 26 | 25 | 25 | 26 | 27 | 23 | 22 | 21 | 21 | 20 | 17 | 18 | 18 | 18 | 20 | 19 | 20 | 21 | 22 | |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our In Betweens surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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