Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 1 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sixtynine sea temperature is
27.7°C
1.1° 

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


Sixtynine surf forecast from 28 Aug 2026:

  • Most powerful swell: Sunday 30 Aug, 5AM (local time) - 1ft (0.3m), 16s period, SW swell with 43 kJ wave energy.

Best Forecast Surf Conditions for Sixtynine this week:

The most powerful waves expected at Sixtynine in the next 16 days are 0.3m 16s and forecast to arrive on Sunday (Aug 30) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Monday (Aug 31) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Sun 30th Aug)1ft (0.3m) 16s

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


The Lowdown

Alright folks, Rusty here. Gotta be straight with you – the next couple of weeks are a tough watch for Sixtynine. The whole 16-day window is basically flat or tiny, with nothing that gets the heart racing. We’re looking at a long run of weak, messy, or non-existent surf. It’s one of those spells where you might be better off doing a reef cleanup or just going for a paddle, because the waves just aren't cooperating. Let's get into the details.

Starting from Thursday the 27th of August right through to the 11th of September, this is a real test of patience. There are no standout days, no one session that leaps out. The water’s sitting at a warm 82°, which is about a touch warmer than normal for this time of year, but that’s about the only positive. The energy in the water is laughable, with the combined swell energy struggling to even hit triple digits most days – we’re talking single and low double digits like 5, 11, or 12 at best, which is just pure weakness.

The first few days are particularly grim. Thursday afternoon has a tiny 0.6 ft from the north with a short 8-second period, and while the wind is light cross-off from the NE, that little dribble won't stand you up. Friday and Saturday are even worse, with many sessions reading as zero swell and "poor surf conditions". A small 0.3 ft to 0.6 ft sneaks in, but with periods all over the place – a long 18-second period on Saturday morning for a 0.3 ft wave is purely an oceanographer's curiosity, not a surfer's wave.

We crawl into early September with the same story. Monday the 31st of August has a tiny bump of 1.0 ft from the SW, with a 15-second period and combined energy of 33. That’s a whisper, not a roar. Winds are generally light and cross or cross-off, which would be beautiful if there was any swell, but there's nothing to ride. The whole first week is a write-off.

Heading into the second week, things don't really improve. From Tuesday the 1st of September to Thursday the 10th, it’s a wasteland of zeros and 0.6 ft waves. There are a couple of glassy moments on Saturday the 5th afternoon and Monday the 7th afternoon, which would be a dream setup, but the swell is practically non-existent at 0.6 ft and 1.0 ft respectively. The combined energy stays pathetically low, mostly in the single and low tens.

Finally, on Thursday the 10th of September morning, we see the biggest combined energy of the whole run at 85, with a 1.0 ft from the SW and a 16-second period. The problem is it’s onshore from the west. Friday the 11th of September afternoon brings the best wave size of the window – 2 ft from the west, a 13-second period, and combined energy of 89. The wind goes glassy from the west. It’s surfable but very ordinary. For a break that’s fairly exposed to the optimum WNW direction, this is a big letdown. The consistency is there, but the size and quality are not.

Honestly, there is no "best on offer" here. It's all poor. If you're desperate, the very end of the run on the 11th of September afternoon gives you the biggest lump of the fortnight at 2 ft, but that's it. The rest is just staring at a flat ocean. Hang in there, the long-range might turn, but right now, it's a full two-week blank.

Rusty

Short Range Forecast

Mostly dry. Warm (max 28°C on Fri afternoon, min 24°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Tue morning, min 24°C on Sun night). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
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)
0.2
N
8
0.3
N
7
0.3
SSW
14
0.2
W
10
0.2
W
10
0.1
SW
18
0.9
NE
6
0.7
NNE
6
0.2
W
12
0.8
NNE
7
0.4
SW
15
0.3
SW
15
0.2
W
12
0.9
NNE
7
0.8
NNE
7
0.2
W
12
0.2
W
11
0.2
W
10
0.2
W
10
0.2
W
10
Wave Graph
Metric surfscale
Energy kJ
5
9
0
8
8
12
0
0
11
0
0
33
11
0
0
12
10
8
8
8
Wind (km/h)
10
NE
10
ENE
10
NNE
5
N
10
NE
10
NNE
15
NE
15
NE
10
NNE
10
NE
10
ENE
15
NNE
10
NNE
5
NE
10
NNW
5
NNW
5
ENE
10
NW
10
NNW
0
NW
Wind State
cross-off
cross-off
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross-off
cross-on
cross-on
cross-off
on
cross-on
glassy
High Tide
3:56PM0.71m
4:12AM0.43m
4:24PM0.68m
4:50AM0.48m
4:52PM0.63m
5:31AM0.53m
5:21PM0.56m
6:15AM0.57m
5:51PM0.48m
7:06AM0.60m
6:23PM0.39m
8:06AM0.61m
6:59PM0.30m
Low Tide
10:35PM0.03m
9:51AM0.02m
10:57PM0.01m
10:34AM0.05m
11:20PM-0.01m
11:21AM0.09m
11:45PM-0.02m
12:16PM0.14m
00:12AM-0.02m
1:23PM0.19m
00:44AM-0.01m
2:57PM0.22m
1:24AM0.00m
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:42
6:40
6:39
6:38
6:37
6:37
 mm
Temp °C
27
26
27
28
26
27
28
26
28
28
25
28
28
26
29
28
26
29
28
26
Feels °C
29
28
28
29
29
29
29
27
30
30
25
28
29
28
31
30
29
31
31
30
  • 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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