Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 7 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sixtynine sea temperature is
27.2° 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 9 Aug 2026:

  • Most powerful swell: Wednesday 12 Aug, 5PM (local time) - 1ft (0.3m), 13s period, WNW 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 13s and forecast to arrive on Wednesday (Aug 12) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 8s period and expected on Saturday (Aug 15) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Wed 12th Aug)1ft (0.3m) 13s

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


The Lowdown

Alright, Rusty here again. Let's break down what's happening at Sixtynine.

It's looking like a pretty flat start. There's no surf to speak of for the first week, from Saturday, August 8th through to Friday, August 15th. The water's sitting at 81°, a bit warmer than average for the season, but that's about the only highlight for a while.

The first little bump shows up on Saturday morning, August 16th. A tiny 2ft swell from the SW, but with a short 7-second period and thunderstorms possible. The combined energy is weak (84), and the onshore breeze won't help. Not worth paddling out for.

Things get a bit more interesting around Tuesday, August 19th. The morning brings a 1ft WNW swell with a 13-second period and a touch more energy (74). But the real standout is Tuesday afternoon. Glassy conditions, a 1ft WNW swell, 12-second period. It's small, but with that clean surface, you could snag a few smooth ones. It's an intermediate spot that's fairly exposed, so it might get a little busy.

After that, it's back to a slow run of small, weak swells through the end of the month. Keep your hopes pinned on the 19th for that clean, small wave window.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Tue afternoon, min 25°C on Tue night). Wind will be generally light.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
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
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)
0.4
NE
10
0.9
NE
6
0.8
NE
6
0.3
W
13
0.3
W
12
0.3
W
12
0.3
W
11
0.3
W
11
0.3
W
10
0.2
W
10
0.3
W
12
0.3
W
13
0.3
W
11
0.3
WNW
13
0.3
WNW
12
0.3
WNW
12
0.9
NNE
6
0.2
W
12
0.2
W
12
0.2
W
12
0.2
W
12
Wave Graph
Metric surfscale
Energy kJ
0
0
0
28
25
23
21
21
18
8
25
29
22
33
28
28
0
11
10
12
12
Wind (km/h)
10
N
15
NE
5
NE
10
NW
5
NW
5
NE
10
NNW
5
NNW
10
NE
10
N
5
NW
10
ENE
10
N
10
NNE
10
NE
15
NNE
20
NNE
5
NNE
25
NNE
25
NE
30
ENE
Wind State
cross
cross-off
cross-off
on
on
glassy
cross-on
glassy
cross-off
cross
glassy
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross-off
cross-off
High Tide
1:16PM0.76m
1:00AM0.19m
2:08PM0.80m
2:05AM0.23m
2:55PM0.83m
2:57AM0.27m
3:37PM0.84m
3:45AM0.33m
4:16PM0.81m
4:30AM0.38m
4:52PM0.76m
5:16AM0.44m
5:25PM0.69m
Low Tide
8:57PM0.09m
6:24AM-0.04m
9:32PM0.05m
7:27AM-0.07m
10:05PM0.02m
8:23AM-0.08m
10:36PM0.00m
9:15AM-0.06m
11:06PM-0.01m
10:03AM-0.03m
11:35PM-0.01m
10:52AM0.02m
00:02AM-0.01m
part cloud
part cloud
clear
clear
rain showers
clear
clear
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:01
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:54
6:53
6:53
6:52
6:52
 mm
2
1
Temp °C
29
29
27
29
28
27
29
29
27
28
29
26
29
29
26
28
28
26
29
29
28
Feels °C
30
30
30
32
31
31
31
32
30
29
31
29
30
31
28
28
28
27
28
29
27
  • 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 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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