Sixtynine Surf Break

Lat Long: 19.98° N 155.84° W

Sixtynine Surf Forecast and Surf Report

Issued: 1 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sixtynine sea temperature is
27.5°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 2 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 8PM (local time) - 5.5ft (1.7m), 14s period, WSW swell with glassy winds.
  • Most powerful swell: Tuesday 8 Sep, 5PM (local time) - 5.5ft (1.7m), 14s period, WSW swell with 1,068 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 2AM (local time) - 2.5ft (0.7m), 11s 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 2AM. The primary swell is predicted to be 0.7m and 11s 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 1.7m 14s and forecast to arrive on Tuesday (Sep 08) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Wednesday (Sep 02) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 6th Sep)2.5ft (0.7m) 11s
Best Surf 8PM (Tue 8th Sep)5.5ft (1.7m) 14s
Most Powerful 5PM (Tue 8th Sep)5.5ft (1.7m) 14s

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


The Lowdown

Alright folks, Rusty here with a look at the next 16 days for our patch.

Honestly, this is a tough run to call. We're looking at a stretch that starts flat and stays stubbornly small and messy for a long, long time. The good news doesn't really show up until we’re well into the second week, and even then, it’s not a classic.

Right out of the gate, the first three days are a write-off. Nothing doing. From the 1st right through the morning of the 6th, it’s flat to ankle-biters with poor wind. You could practically walk across it. Finally, on the afternoon of Sunday the 6th, we get a little pulse of life. A small 0.7m swell from the SW creeps in, with 10 second period and light offshore wind turning it glassy. The combined energy is weak at (108), but for that one window, it'll be clean if tiny. Don’t get excited.

That little burst gets blown out by Monday the 7th with onshore wind, and things go downhill again. There’s a bigger swell building for the 8th, but the wind is never right. Tuesday the 8th has a 1.7m groundswell from the WSW with a very long 14 second period. The combined energy jumps to a moderate (1068), so there’s proper power in the water. But the onshore and cross-onshore wind is gonna chop it up. That’s expert territory in size and won’t be pretty. The following days just fade back to nothing. Another flat spell from the 9th right through to the middle of the month.

The only other slight blip is around the 15th of September. We’ve got a tiny 0.4m swell, but with a massive 21-second period. The energy is (181) – not strong, but that’s a deep ocean groundswell. That kind of period needs a specific bank to do anything, and with the cross-onshore wind, it’s not going to be user-friendly.

The pick: It’s slim pickings, but the best chance for a surfable and clean wave is that Sunday afternoon, the 6th. Head to Sixtynine. The water is sitting at 28°, which is about 0.8° warmer than normal for this time of year, so pleasant enough. You’ll get knee-high glass from a light W swell. It’s consistent and can get crowded sometimes, so expect some company for those tiny peelers. For the rest of the week, there’s nothing I’d paddle out for. After that, the windows are too small and the wind too blustery to call anything a standout. It’s a lean spell.

Stay patient, or find a lake.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 29°C on Sat morning, min 25°C on Fri night). Wind will be generally light.

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
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
1
0
1
1
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)
0.6
NE
8
0.2
W
11
0.2
W
11
0.2
W
10
0.2
W
10
0.1
W
9
0.1
W
9
0.1
W
9
0.5
S
13
0.5
SSW
11
0.7
SSW
11
0.9
SW
11
0.9
SW
12
0.7
SW
11
0.7
SW
11
0.7
SW
10
0.8
SW
11
0.7
SW
10
0.8
WSW
11
0.9
WSW
12
Wave Graph
Metric surfscale
Energy kJ
0
10
9
8
8
2
2
2
0
0
0
0
0
110
114
108
140
108
154
226
Wind (km/h)
10
NNE
0
N
10
N
10
NNE
15
ENE
15
NNE
20
NE
15
NE
10
NNE
10
NE
15
ENE
5
NNW
5
NNW
0
NE
5
NNW
5
NW
5
N
10
WNW
5
W
5
WNW
Wind State
cross
glassy
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-on
cross-on
glassy
cross-on
glassy
glassy
on
on
on
High Tide
6:23PM0.39m
8:06AM0.61m
6:59PM0.30m
9:20AM0.63m
7:55PM0.22m
10:42AM0.65m
10:08PM0.17m
11:57AM0.69m
00:08AM0.19m
12:59PM0.72m
1:17AM0.24m
1:49PM0.75m
2:08AM0.31m
Low Tide
00:44AM-0.01m
2:57PM0.22m
1:24AM0.00m
5:16PM0.20m
2:19AM0.02m
7:06PM0.15m
3:40AM0.04m
7:52PM0.09m
5:12AM0.03m
8:26PM0.06m
6:29AM0.01m
8:55PM0.03m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
rain showers
part cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
6:36
6:35
6:34
6:32
 mm
1
1
Temp °C
29
27
28
28
26
28
28
25
27
28
25
29
29
27
29
29
27
28
28
27
Feels °C
32
30
31
31
27
29
29
25
28
29
26
31
31
32
32
32
31
31
31
31
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  • 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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