In Betweens Surf Break

Lat Long: 21.28° N 157.84° W

In Betweens Surf Forecast and Surf Report

Issued: 1 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's In Betweens sea temperature is
27.2° C
0.6° 

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 10 Aug 2026:

  • Most powerful swell: Sunday 16 Aug, 2PM (local time) - 21ft (6.5m), 12s period, ENE swell with 13,337 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 6.5m 12s and forecast to arrive on Sunday (Aug 16) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Aug 12) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sun 16th Aug)21ft (6.5m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the menu for the next couple of weeks. It’s a bit of a mixed bag, but we’ll get through it.

Right out of the gate, things are looking pretty average. The first few days at In Betweens are all cross-off winds, which keeps the surface clean, but the energy just isn’t there for a proper session. Monday the 10th and Tuesday the 11th are seeing small stuff around 2ft to 4ft with short periods, and the combined swell energy is moderate at best (442). The water temp is sitting at 81°, which is about average for this time of year. It’s a frustrating start.

We’ve got a long gap of marginal, low-scoring surf through the week. The wind stays constant, but the swell is messy. It’s not until Saturday the 15th that things start to get interesting. That afternoon, we get a proper shift: the wind goes offshore, fresh and clean, and the swell bumps up to 10ft from the ENE with a 12-second period. The combined energy jumps to a strong 2797. That’s the moment where the reef should start working. This is for experienced surfers looking for a powerful, clean wave.

Sunday the 16th is a write-off, though. The swell hits 18ft to 20ft, but the wind swings onshore from the SSE, completely trashing the quality. That size and onshore wind is dangerous and unsurfable. Even the huge energy values (8870) can’t save it. That’s not for anyone but kite surfers or the very insane.

The following week cools off. Monday the 17th offers a tiny window with a light cross-shore breeze on a 6ft ENE swell, but it’s only given a marginal call. After that, it’s back to the same story: cross-off winds with weak, short-period ENE waves barely reaching 4ft. A lot of those days have weak combined swell energy in the 300s. Then there’s a brief pulse from the SSW around the 20th to the 24th with longer periods (15-18 seconds) but only 2ft to 2ft of height – too small to do anything with.

The only real standout in the second week is Tuesday the 25th. The swell bumps up to 4ft from the south with a long 19-second period, and the combined energy gets strong at 1408. Still cross-off winds, but with that clean surface and longer period groundswell, In Betweens could offer a few fun, lined-up sets for the patient surfer. It’s a promising but less certain call this far out.

So the best on offer is clear: Saturday 15th afternoon with a solid 10ft offshore swell and clean wind – that’s the one to circle. Tuesday 25th is the backup if you can wait.

Stay frothing,
Rusty

Short Range Forecast

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

Days 4-6 Weather Summary

Heavy rain (total 45mm), heaviest during Sat night. Warm (max 27°C on Thu morning, min 25°C on Thu night). Winds increasing (fresh winds from the NE on Thu morning, stormy winds from the SSW by Sat night).

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
1
2
1
1
1
1
0
1
0
1
2
1
2
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
ENE
8
1.2
ENE
8
1.3
ENE
7
1.3
ENE
7
0.8
SSW
14
0.6
S
20
0.9
S
18
0.9
S
18
1
S
16
1
S
16
1.2
S
15
1.1
S
15
2.2
ENE
8
2.1
ENE
8
2.5
ENE
8
2.5
ENE
10
3
ENE
12
3.5
ENE
11
5.5
ENE
12
6
E
11
2.5
ENE
9
Wave Graph
Metric surfscale
Energy kJ
202
176
186
181
269
276
509
498
520
501
653
537
526
534
789
1422
2587
2819
8619
8291
1057
Wind (km/h)
25
ENE
30
ENE
25
ENE
25
ENE
30
ENE
25
ENE
30
ENE
30
ENE
30
ENE
35
NE
35
ENE
35
ENE
40
NE
35
NE
35
NE
40
NNE
35
NNE
50
WNW
35
SSE
25
SSE
20
SE
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
off
cross-off
on
on
cross-on
High Tide
2:54PM0.80m
2:55AM0.26m
3:35PM0.79m
3:43AM0.31m
4:13PM0.75m
4:30AM0.36m
4:48PM0.69m
5:17AM0.40m
5:22PM0.62m
6:06AM0.44m
5:54PM0.53m
6:57AM0.47m
6:24PM0.45m
Low Tide
10:10PM0.06m
8:15AM-0.02m
10:40PM0.05m
9:08AM-0.00m
11:08PM0.04m
9:58AM0.03m
11:36PM0.04m
10:49AM0.08m
00:03AM0.04m
11:43AM0.14m
00:30AM0.05m
12:43PM0.20m
00:58AM0.06m
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:04
7:02
7:02
7:01
7:00
7:00
 mm
1
44
22
2
3
Temp °C
27
27
26
26
26
25
26
26
25
27
27
25
26
26
25
26
27
26
26
27
26
Feels °C
26
25
26
25
24
23
24
23
23
24
24
23
22
22
22
24
25
23
22
26
27
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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