Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 7 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sixtynine sea temperature is
27.7°C
0.9° 

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


Sixtynine surf forecast from 15 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 5AM (local time) - 1ft (0.3m), 21s period, SW swell with glassy winds.
  • Most powerful swell: Wednesday 16 Sep, 2PM (local time) - 1.5ft (0.4m), 18s period, SW swell with 109 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 1ft (0.3m), 21s period with SW swell.

Best Forecast Surf Conditions for Sixtynine this week:

The surf forecast for Sixtynine over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.3m and 21s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Sixtynine in the next 16 days are 0.4m 18s and forecast to arrive on Wednesday (Sep 16) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Thursday (Sep 17) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 15th Sep)1ft (0.3m) 21s
Best Surf 5AM (Tue 15th Sep)1ft (0.3m) 21s
Most Powerful 2PM (Wed 16th Sep)1.5ft (0.4m) 18s

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


The Lowdown

Gutted, folks. Looking at the full 16-day run for Sixtynine, and I’ve got to be straight with you: it’s flat. Proper flat. There isn’t a single window where this place is going to offer up a decent wave. The swell charts are basically a flatline, and what little pulses we see are tiny and messy.

We start this Tuesday, the 15th, with nothing but a clear sky and a slight air. The ocean’s dead calm. That carries through Wednesday and Thursday—a few small ripples, but nothing that would get you out of bed. We’re talking maybe 0.3ft to 0.7ft at best, and with short, weak periods around 8 to 9 seconds. It’s a lake out there, not a surf break.

Come the weekend, there’s a faint whisper of a southwest groundswell trying to push in. On Sunday the 20th, we see a glimmer—1ft at 15 seconds, but the energy numbers are pitiful (33). It’s a long-period swell, which is usually a good sign for shape, but there’s just no size behind it. It’s breaking too straight to do anything with it, even if you were on a longboard.

The following week keeps the same sad story. There’s a bit more movement around Wednesday the 23rd (1ft, 16 seconds, energy 41), but it’s still tiny. And look, the winds are mostly light and variable, even glassy at times Thursday afternoon—but it doesn’t matter when there’s nothing to ride. You can’t surf a smooth surface; you need a wave under it. Friday the 25th sees a touch more energy (89) with 1ft at 21 seconds, but the wind is light cross-shore, making it choppy junk.

We roll into the final week, and on the 26th, there’s a slight bump—1ft at 18 seconds, energy climbing to 155. That’s the biggest number we see all run, but it’s still weak. And it’s coming from the NW, which is cross-shore at best. It’s not going to stand up. By the 28th, we’re back down to 0.7ft and weaker energy. The last day of the month, the 30th, shows a tiny pulse with a 15-second period, but it’s onshore and barely registering (41).

Honestly, if you’re a kitesurfer, the conditions are at least workable at times—those light cross-off winds on the 22nd and the 26th afternoons would give you something to play with. But for paddle surfing? It’s a blank. No standouts, nothing even remotely rideable for beginners or experts. When there’s nothing on the cards for this long, it’s just what the area does sometimes. Forecasts can change, but as it stands, you’re better off finding another hobby for the next couple of weeks.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu afternoon. Warm (max 29°C on Tue morning, min 26°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 29°C on Fri morning, min 25°C on Fri night). Wind will be generally light.

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.6
NNE
8
0.4
SW
20
0.4
SW
19
0.4
SW
19
0.1
SW
8
0.5
SW
18
0.4
SW
17
0.9
NNE
8
0.4
SW
16
0.2
WSW
9
0.4
SW
18
0.2
WSW
9
0.5
SW
16
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.6
NE
5
0.3
SW
15
0.3
SSW
14
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
3
0
0
0
0
7
0
8
0
0
0
0
0
33
0
Wind (km/h)
0
W
5
WNW
5
NW
5
NE
10
N
15
NE
5
NNE
10
W
5
NNW
5
NE
5
NNW
5
NNE
10
ENE
10
NW
15
NE
10
NE
10
N
10
NNE
10
NE
Wind State
glassy
on
glassy
cross-off
cross
cross-off
cross
on
glassy
cross-off
glassy
glassy
cross-off
on
cross-off
cross-off
cross
cross
cross-off
High Tide
6:50AM0.62m
6:10PM0.32m
7:39AM0.59m
6:37PM0.25m
8:41AM0.57m
7:08PM0.20m
10:00AM0.55m
9:49PM0.17m
11:20AM0.56m
00:02AM0.19m
12:22PM0.59m
00:56AM0.24m
Low Tide
11:45PM0.02m
1:34PM0.18m
00:09AM0.04m
3:00PM0.20m
00:37AM0.07m
5:26PM0.20m
1:16AM0.10m
7:14PM0.16m
2:31AM0.12m
7:39PM0.13m
4:23AM0.13m
7:59PM0.11m
clear
clear
part cloud
clear
clear
clear
clear
part cloud
thunderstorm
clear
part cloud
thunderstorm
part cloud
part cloud
cloud
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:25
6:24
6:23
6:22
6:22
6:21
 mm
3
2
Temp °C
27
29
28
27
29
29
28
29
28
27
29
29
27
28
28
26
29
28
26
Feels °C
31
32
32
31
32
31
31
33
32
31
32
34
30
30
31
28
31
30
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 Sixtynine Surf forecast

The above surf forecast table for Sixtynine provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sixtynine can be found by selecting the local surf guide option on the grey menu. Our Sixtynine 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 (Sixtynine) 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 Sixtynine 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.

Sixtynine is 84 km (52 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.

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