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Surf Forecasts:
In Betweens surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 1 pm Saturday 16 May 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
25.4° 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 Saturday (May 16) at 8PM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.5m and 14s. 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 3.0m 8s and forecast to arrive on Saturday (May 23) 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 0.4m 12s period and expected on Wednesday (May 20) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 16th May) | 5ft (1.6m) 8s |
| Best Surf | 8PM (Sat 16th May) | 5ft (1.6m) 8s |
| Most Powerful | 2AM (Sat 23rd May) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for In Betweens over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Sat afternoon. Warm (max 26°C on Sat afternoon, min 23°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the ENE by Tue morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Tue afternoon, min 23°C on Tue night). Mainly strong winds. | ||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
ENE 8 | ENE 8 | ENE 8 | SSW 15 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 18 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
310 | 280 | 223 | 228 | 418 | 341 | 394 | 259 | 228 | 318 | 449 | 756 | 749 | 916 | 867 | 865 | 1071 | 864 | 933 | 1093 | 998 | |
Wind (km/h) | |||||||||||||||||||||
glassy | 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 | 4:19PM0.72m | 3:56AM0.15m | 5:08PM0.74m | 4:50AM0.11m | 5:59PM0.73m | 5:55AM0.09m | 6:52PM0.69m | 7:16AM0.09m | 7:47PM0.64m | 8:55AM0.12m | 8:43PM0.58m | 10:30AM0.18m | 9:37PM0.51m | 11:42AM0.26m | |||||||
Low Tide | 11:40PM0.00m | 9:26AM-0.14m | 00:43AM-0.00m | 10:08AM-0.12m | 1:48AM-0.01m | 10:55AM-0.08m | 2:50AM-0.02m | 11:49AM-0.02m | 3:46AM-0.03m | 12:55PM0.05m | 4:33AM-0.04m | 2:25PM0.11m | 5:12AM-0.05m | ||||||||
 |  |  | |  |  |  | | | |  | | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 |
 | 7:01 | — | — | 7:02 | — | — | 7:02 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:05 | — | 7:05 |
2 | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 24 | 24 | 23 | 23 | 24 | 23 | 24 |
29 | 29 | 24 | 23 | 23 | 23 | 21 | 22 | 21 | 20 | 21 | 21 | 19 | 18 | 19 | 19 | 18 | 18 | 19 | 18 | 19 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 14 | ENE 8 | SSW 14 | ENE 8 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | S 16 | S 16 | S 15 | S 14 | SSW 14 | S 16 | S 16 |
 kJ | 310 | 280 | 223 | 228 | 186 | 341 | 168 | 259 | 178 | 246 | 172 | 163 | 108 | 68 | 132 | 127 | 110 | 106 | 62 | 130 | 181 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SSE 9 | SSW 15 | SSW 15 | SSE 7 | SSW 14 | SSW 19 | SSW 14 | SSW 18 | SSE 7 | SSE 9 | NNW 12 | SSW 18 | SSW 16 | SSW 13 | SSW 12 | SSE 13 | S 18 | S 18 | SSW 13 | SSW 13 |
| kJ | 102 | 92 | 131 | 193 | 9 | 180 | 148 | 161 | 207 | 9 | 17 | 26 | 61 | 91 | 32 | 28 | 32 | 57 | 97 | 60 | 34 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 15 | SSE 6 | SSE 7 | SSE 10 | SSW 19 | SSE 10 | SSW 16 | SSE 10 | NNW 12 | NW 11 | SSE 9 | NNW 11 | NNW 10 | SSE 13 | SSE 13 | SSW 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 |
| kJ | 89 | 54 | 23 | 18 | 20 | 251 | 33 | 91 | 31 | 27 | 30 | 16 | 23 | 22 | 17 | 17 | 14 | 29 | 14 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ENE 8 | — | ENE 8 | — | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | — | — | — | — | 418 | — | 394 | — | 228 | 318 | 449 | 756 | 749 | 916 | 867 | 865 | 1071 | 864 | 933 | 1093 | 998 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 1 | 30 | 30 | 31 | 30 | 38 | 39 | 38 | 41 | 46 | 126 | 127 | 129 | 47 | 126 | 201 | 41 | 129 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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