Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 1 pm 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sixtynine sea temperature is
27.0° C
0.8° 

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


Sixtynine surf forecast from 1 Aug 2026:

  • Most powerful swell: Saturday 1 Aug, 8AM (local time) - 1ft (0.3m), 14s period, SW swell with 33 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 14s and forecast to arrive on Saturday (Aug 01) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Saturday (Aug 01) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Sat 1st Aug)1ft (0.3m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Sixtynine over the next couple of weeks.

Right off the bat, I gotta be straight with you – the start of this period is a tough one. For the first week and a half, from Friday, July 31st right through to Sunday, August 9th, the surf is almost non-existent. We’re talkin’ tiny little dribbles of 0.7ft to 2ft, with weak energy readings barely cracking 46 (13-46). The wind is mostly cross or onshore, and the wave comment is "poor surf conditions" across the board. It’s a real flat spell, so don’t even bother waxing up. There’s a couple of glassy moments on Tuesday afternoon, August 4th, and Thursday afternoon, August 6th, but with 0.7ft to 1.0ft of swell, it’s still just a lake paddle.

The first real sign of life shows up on Monday, August 10th. We start seeing the combined energy jump into the 100s (143-144), with a 2ft swell from the W. The water temp is sitting at 81°, which is about average for the time of year. The wind goes glassy on the morning of the 10th and again on the 11th, which is a good sign, but the swell is still pretty weak. It’s surfable, but very ordinary.

Now, the standout window is the second week. The build starts on Wednesday afternoon, August 12th, with a 3ft W swell, a period of 14 seconds, and energy up to 232. Thursday, August 13th, keeps that energy in the 220s, but the swell drops back to 2-2ft. The real juice comes on Friday, August 14th, and Saturday, August 15th. By Friday afternoon, we’ve got a 3ft WNW swell with a very long 15-second period and a combined energy of 304. Then Saturday morning, August 15th, the swell hits 3ft from the W, energy climbs to 459, and the period stays solid at 15 seconds. The afternoon of the 15th sees glassy conditions, a 3ft W swell, and an energy of 435 – that’s moderate energy finally showing up. This is the best on offer. That long period groundswell is gonna wrap into Sixtynine nicely, and with glassy conditions on Saturday afternoon, it’ll be clean. Just keep in mind, with a 15-second period, it’s gonna be lined up and powerful, but at a point break like this, that’s a good thing. The crowd there is "sometimes" an issue, so you might have a few others in the water, but it won’t be a zoo.

To sum it up: the first 10 days are a complete write-off. The surf comes alive from August 10th, but it’s only really worth paddling out for from the 12th onward. The standout is Saturday afternoon, August 15th – glassy, 3ft of W swell, and strong energy. It’s a long-range call, so check the charts closer to the day, but it’s looking promising.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Fri afternoon, min 24°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Wed afternoon. Warm (max 29°C on Wed afternoon, min 25°C on Mon night). Wind will be generally light.

Fri
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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)
0.3
N
9
0.2
N
8
0.2
N
8
0.3
SW
14
0.3
SW
14
0.3
N
10
0.6
N
7
0.2
N
9
0.2
W
11
0.2
W
12
0.2
W
12
0.2
W
11
0.2
W
11
0.2
W
13
0.2
W
13
0.2
W
12
0.3
W
12
0.3
W
13
0.3
W
13
0.3
W
12
Wave Graph
Metric surfscale
Energy kJ
13
5
5
29
29
16
31
6
10
11
11
9
10
13
12
11
28
30
28
27
Wind (km/h)
15
NNE
5
NE
20
NNE
20
NNE
10
ENE
10
N
5
NE
5
NE
5
NW
10
WNW
0
NNW
10
WNW
5
WNW
5
NNW
10
WNW
10
W
0
N
10
NNE
5
W
5
ENE
Wind State
cross
cross-off
cross
cross
cross-off
cross
cross-off
cross-off
on
on
glassy
on
glassy
glassy
on
on
glassy
cross
glassy
glassy
High Tide
5:28PM0.71m
5:58AM0.38m
5:56PM0.66m
6:46AM0.42m
6:25PM0.59m
7:40AM0.47m
6:56PM0.51m
8:43AM0.52m
7:30PM0.41m
9:54AM0.57m
8:12PM0.32m
11:08AM0.63m
9:29PM0.23m
Low Tide
00:20AM0.03m
11:18AM0.08m
00:46AM0.02m
12:07PM0.14m
1:13AM0.01m
1:09PM0.20m
1:44AM-0.00m
2:34PM0.25m
2:20AM-0.00m
4:37PM0.27m
3:05AM-0.01m
6:57PM0.22m
4:04AM-0.01m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
thunderstorm
part cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:58
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
6:59
6:59
6:58
6:58
6:57
 mm
1
Temp °C
29
26
27
28
25
28
28
25
28
28
26
28
28
27
28
29
27
29
29
26
Feels °C
28
27
26
27
25
29
30
28
30
30
30
30
31
32
30
32
32
31
32
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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