In Betweens Surf Break

Lat Long: 21.28° N 157.84° W

In Betweens Surf Forecast and Surf Report

Issued: 1 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's In Betweens sea temperature is
27.4°C
0.4° 

In Betweens surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


In Betweens surf forecast from 18 Sep 2026:

  • Most powerful swell: Tuesday 22 Sep, 8PM (local time) - 7ft (2.2m), 9s period, ENE swell with 790 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 2.2m 9s and forecast to arrive on Tuesday (Sep 22) 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 0.5m 12s period and expected on Tuesday (Sep 22) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Tue 22nd Sep)7ft (2.2m) 9s

Table - best surf conditions forecast for In Betweens over the next 16 days.


Short Range Forecast

Light rain (total 4mm), mostly falling on Thu night. Warm (max 27°C on Thu afternoon, min 26°C on Thu night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Mon morning, min 25°C on Sun night). Mainly strong winds.

Thu
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
1
1
0
1
0
1
0
0
0
1
1
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
ENE
9
1
SSW
18
2.2
ENE
8
1
SSW
17
1
SSW
16
2.2
E
7
1.9
ENE
8
1.9
ENE
8
2.1
E
7
2
E
7
1.8
ENE
8
2.3
ENE
8
1.9
ENE
8
2
E
8
2.1
ENE
8
2.2
ENE
9
2
E
9
1.8
ENE
9
1.9
ENE
9
1.7
ENE
9
Wave Graph
Metric surfscale
Energy kJ
616
644
622
580
539
522
450
461
427
423
385
561
427
484
602
773
705
552
586
484
Wind (km/h)
30
ENE
35
ENE
35
ENE
35
ENE
25
ENE
35
ENE
35
ENE
30
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
Wind State
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
7:25PM0.21m
10:27AM0.57m
11:01PM0.21m
11:34AM0.59m
00:19AM0.23m
12:26PM0.61m
00:59AM0.27m
1:06PM0.62m
1:32AM0.32m
1:41PM0.62m
2:04AM0.37m
2:12PM0.62m
2:36AM0.43m
Low Tide
7:14PM0.21m
1:26AM0.16m
7:23PM0.18m
2:56AM0.18m
7:43PM0.16m
4:35AM0.17m
8:01PM0.15m
5:47AM0.16m
8:17PM0.13m
6:43AM0.13m
8:34PM0.11m
7:31AM0.11m
8:51PM0.09m
thunderstorm
thunderstorm
clear
part cloud
part cloud
clear
cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
6:18
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
6:29
6:28
6:27
6:25
 mm
1
3
Temp °C
27
26
27
27
26
27
27
26
26
26
26
27
27
26
26
27
26
26
26
26
Feels °C
26
25
24
25
24
24
24
24
24
22
24
24
24
25
25
25
24
23
23
23
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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.

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