Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 1 am 07 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 7 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-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 Sunday (Aug 09) at 2PM.

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, grab a coffee and settle in, because I’ve been staring at the charts for Sixtynine and, well… it’s a tough one. The whole 16-day window is a real struggle for decent surf. There are no standout sessions, no hidden gems waiting to fire. It’s pretty much a flat spell with a few tiny, weak pulses that just don't amount to anything rideable.

The water temp is sitting at 81°, which is about 1° warmer than the long-term average, so nothing unusual there, just your typical warm August water.

The first week is a total write-off. From Friday the 7th right through to Sunday the 16th, we’re looking at tiny, weak swells, mostly around 0.7ft to 1ft. The combined wave energy is in the weak zone, barely scraping into double digits at times, often sitting at 0 or 8. There’s a bit of a pulse on the 17th and 18th, where the energy climbs to 122 and 155, but that’s still moderate at best, and the swell height is only 2ft. The wind is mostly cross or cross-off, with a few glassy moments, but the lack of swell means it’s just flat and clean, not surfable. The period is long, up to 15 seconds on the 17th, which would normally be exciting, but with no height, it’s a tease.

For the second week, from the 19th onwards, the models are hinting at a few more pulses, but the swell height is still stuck around 1ft to 2ft. The energy stays weak, and the winds are mostly onshore or cross-onshore, which isn't doing us any favours. The 21st sees a long-period 18-second swell from the SW, but at 1ft, it’s not going to do anything. The 22nd is similar with a 16-second SW swell.

Honestly, folks, there’s nothing here to get excited about. The best advice I can give is to keep an eye on the charts, because this kind of run can’t last forever, and a change in the forecast could bring something better. But for now, it’s a waiting game.

Rusty

Short Range Forecast

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

Days 4-6 Weather Summary

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

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
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)
0.2
W
12
0.2
W
12
0.2
SSW
19
0.2
SSW
18
0.8
NNE
5
0.7
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
0.2
W
15
0.3
W
13
0.3
S
18
0.3
WNW
13
0.3
SSW
16
0.3
W
12
0.3
W
12
0.2
W
12
Wave Graph
Metric surfscale
Energy kJ
11
11
0
0
0
0
28
25
23
21
21
19
8
17
29
0
33
0
25
25
11
Wind (km/h)
5
N
5
NNW
15
ENE
10
N
15
NE
5
ENE
10
NNW
5
WNW
5
N
10
NW
5
N
5
ENE
10
N
5
NNE
10
ENE
10
N
15
NNE
5
ENE
15
N
10
NNE
5
NE
Wind State
cross-on
glassy
cross-off
cross-on
cross-off
cross-off
cross-on
glassy
glassy
cross-on
cross-on
cross-off
cross
glassy
cross-off
cross
cross-off
glassy
cross
cross
cross-off
High Tide
12:16PM0.69m
11:28PM0.19m
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
Low Tide
8:13PM0.15m
5:14AM-0.02m
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
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:01
6:01
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:55
6:55
6:54
6:53
6:53
6:52
 mm
2
Temp °C
28
29
26
28
28
27
29
29
27
29
28
27
29
29
26
28
28
26
28
29
26
Feels °C
30
33
29
30
29
31
32
33
31
32
31
30
30
30
28
28
29
27
29
32
28
  • 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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