Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 7 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sixtynine sea temperature is
27.5°C
0.7° 

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


Sixtynine surf forecast from 6 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 2AM (local time) - 5ft (1.6m), 13s period, WSW swell with glassy winds.
  • Most powerful swell: Tuesday 8 Sep, 2AM (local time) - 5ft (1.6m), 13s period, WSW swell with 875 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 11PM (local time) - 3.5ft (1.0m), 12s 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 Sunday (Sep 06) at 11PM. The primary swell is predicted to be 1.0m and 12s 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 1.6m 13s and forecast to arrive on Tuesday (Sep 08) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 11s period and expected on Sunday (Sep 06) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 6th Sep)3.5ft (1.0m) 12s
Best Surf 2AM (Tue 8th Sep)5ft (1.6m) 13s
Most Powerful 2AM (Tue 8th Sep)5ft (1.6m) 13s

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 on the cards for this stretch of coast. I won’t sugarcoat it – the next couple of weeks are looking pretty lean, so don’t be in a rush to grab your board.

First up, we’ve got Sixtynine. This spot is a fairly exposed intermediate break, and it likes a WNW swell. The water temp is sitting at 82°, which is a touch warmer than average for this time of year, so you’ll be comfortable in a shorty.

The forecast gets off to a quiet start. Sunday the 6th is a write-off with risk of thunderstorms and no surf to speak of. Monday the 7th barely gets a pulse with a 3 ft SW swell, but the period is 11 seconds, so there’s a little bit of shape. Winds are light and onshore though, so it’s messy. The energy is weak at just 205.

There’s a slight bump on Tuesday the 8th. The swell pushes up to 5 ft from the WSW with an 11-second period, and the combined energy hits 550 (moderate). But the wind is cross-onshore, so it’s not clean. You might find a couple of bumpy ones, but it’s not worth getting excited about. The afternoon drops to 5 ft and 399 energy, still with that cross-onshore breeze.

After that, it’s a long dry spell. From Wednesday the 9th all the way through to Tuesday the 15th, we’re looking at tiny, weak swells – mostly under 1 ft and energy values in the single digits or low double digits. Winds are light and variable, sometimes glassy, but there’s just no push. The period on the 10th is a long 16-18 seconds, but with only 1 ft of swell, it’s just a long-period wobble on the water. Not surfable.

A glimmer shows up on Wednesday the 16th. The afternoon brings a 1 ft SW swell with an 18-second period, and the energy climbs to 109 (moderate). The wind goes glassy, which is a huge positive. The waves are there, but the conditions are described as very ordinary. It’s a small window for a micro-session, but don’t expect much.

The next hint of life comes on Sunday the 20th. We’ve got a 2 ft W swell, 14-second period, and energy of 165 (moderate). The morning has light onshore winds, but the afternoon turns glassy, and the waves are surfable but still very ordinary. That’s the best of the bunch, but it’s a far cry from pumping.

Looking at the whole 16-day window, there’s no standout day. The best on offer is probably the afternoon of Sunday the 20th at Sixtynine, with a 2 ft W swell and glassy conditions. But even then, it’s small and weak. The crowd factor at Sixtynine is “sometimes,” so you might have the place to yourself, which is about the only upside.

For the rest of the time, you’re looking at a lot of flat, glassy days with no energy. It’s a tough stretch. If you’re desperate for a paddle, the 20th is your best bet, but keep your expectations low.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun morning. Warm (max 30°C on Tue morning, min 26°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed afternoon. Warm (max 29°C on Wed afternoon, min 24°C on Thu night). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
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
2
0
0
3
0
1
1
0
0
0
0
0
1
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)
0.9
SW
11
0.9
SW
12
1.1
SW
13
0.9
SW
11
0.9
SW
11
1.6
WSW
13
1.6
WSW
11
1.5
WSW
10
0.9
WNW
9
0.6
WNW
8
0.3
WNW
7
0.8
NE
7
0.3
SW
16
0.3
SW
18
0.3
SW
16
0.4
SW
10
0.4
SW
9
0.4
SW
15
0.4
SW
15
0.3
SW
14
0.3
SW
14
Wave Graph
Metric surfscale
Energy kJ
0
0
437
205
202
875
550
399
135
51
10
0
42
50
42
24
22
0
0
29
29
Wind (km/h)
5
W
5
WSW
5
ENE
10
W
10
W
5
WSW
10
W
5
W
0
WSW
5
WNW
5
NW
5
NNE
10
NNE
10
NNE
5
ENE
10
NW
5
NNW
0
ENE
5
NNW
5
N
5
NE
Wind State
on
cross-on
glassy
on
cross-on
glassy
cross-on
cross-on
glassy
on
cross-on
glassy
cross
cross
cross-off
cross-on
glassy
glassy
cross-on
glassy
glassy
High Tide
12:59PM0.72m
1:17AM0.24m
1:49PM0.75m
2:08AM0.31m
2:32PM0.75m
2:51AM0.39m
3:10PM0.73m
3:32AM0.46m
3:45PM0.69m
4:11AM0.53m
4:16PM0.63m
4:50AM0.58m
4:46PM0.55m
Low Tide
8:26PM0.06m
6:29AM0.01m
8:55PM0.03m
7:32AM-0.01m
9:22PM0.01m
8:26AM-0.02m
9:48PM-0.01m
9:15AM-0.00m
10:13PM-0.02m
10:03AM0.02m
10:37PM-0.02m
10:50AM0.06m
11:00PM-0.01m
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
rain showers
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:32
6:31
6:30
6:30
6:29
6:28
 mm
1
1
2
Temp °C
28
28
27
28
29
28
30
29
27
28
29
27
28
28
26
28
28
26
27
28
26
Feels °C
32
32
32
31
32
32
33
32
32
32
33
31
30
30
29
29
30
29
29
31
29
  • 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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