Sixtynine surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 1 pm Monday 11 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Sixtynine surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sixtynine sea temperature is
25.9° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Sixtynine this week:

The most powerful waves expected at Sixtynine in the next 16 days are 0.3m 16s and forecast to arrive on Friday (May 15) at 8PM. 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 Wednesday (May 13) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Fri 15th May)1ft (0.3m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 27°C on Mon afternoon, min 22°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 27°C on Fri morning, min 23°C on Thu night). Wind will be generally light.

Mon
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
WNW
12
0.1
NW
11
0.3
N
12
0.3
NNW
11
0.2
N
13
0.2
N
12
0.2
N
10
0.2
N
9
0.3
N
9
0.3
N
8
0.3
NW
14
0.3
NW
13
0.3
NW
12
0.3
NW
12
0.3
SW
15
0.3
SW
15
0.6
NE
8
0.3
SW
14
0.7
NE
6
0.4
NE
8
0.8
NE
6
Wave Graph
Metric surfscale
Energy kJ
13
5
28
23
12
11
8
6
13
13
32
27
25
23
33
33
0
33
0
0
0
Wind (km/h)
20
NE
15
NE
15
NNE
15
NE
15
ENE
10
NNW
10
NE
5
NNE
5
NNW
5
NNE
5
ENE
10
W
5
NNW
5
ENE
5
WNW
0
SW
10
SW
10
WNW
0
NNW
5
NNE
10
NNW
cross-off
cross-off
cross
cross-off
cross-off
cross-on
cross-off
glassy
cross-on
glassy
cross-off
on
cross-on
cross-off
on
glassy
cross
on
glassy
glassy
cross-on
High Tide
00:05AM0.51m
1:30PM0.55m
00:52AM0.46m
2:10PM0.66m
1:39AM0.41m
2:50PM0.75m
2:27AM0.35m
3:32PM0.83m
3:14AM0.30m
4:17PM0.87m
4:04AM0.25m
5:03PM0.88m
4:56AM0.21m
Low Tide
6:15PM0.21m
6:46AM0.00m
7:28PM0.18m
7:15AM-0.03m
8:33PM0.14m
7:45AM-0.06m
9:33PM0.09m
8:18AM-0.09m
10:31PM0.06m
8:54AM-0.10m
11:28PM0.04m
9:33AM-0.10m
00:26AM0.02m
10:16AM-0.08m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
part cloud
clear
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:47
5:47
5:47
5:46
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:51
6:51
6:51
6:52
6:52
6:52
6:52
2
2
Temp °C
27
24
26
26
24
26
26
24
27
26
24
27
26
25
27
25
25
27
27
26
27
25
23
26
26
23
26
28
24
28
28
26
28
28
28
29
27
28
30
31
30
29
Swell 1
Height (m)
Direction
Period (s)
0.2
WNW
12
0.8
NNE
5
0.6
NE
5
0.7
NE
6
0.7
NNE
6
0.7
NE
6
1
NE
6
0.7
NNE
6
0.8
NNE
6
0.6
NNE
7
0.7
NE
7
0.8
NE
7
0.9
NE
7
0.8
NE
7
0.8
NE
7
0.9
NE
7
0.6
NE
8
0.6
NE
8
0.7
NE
6
0.6
NNE
5
0.8
NE
6
Energy kJ
13
33
18
35
30
34
75
33
52
34
47
59
82
59
64
75
46
48
37
19
36
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
17
0.1
NW
11
0.5
N
6
0.6
N
7
0.2
NNW
10
0.2
N
12
0.2
N
10
0.2
ENE
7
0.3
N
9
0.4
ENE
7
0.3
NW
14
0.3
NW
13
0.3
NW
12
0.3
NW
12
0.3
SW
15
0.3
SW
15
0.2
SSW
14
0.3
SW
14
0.4
NE
8
0.4
NE
8
0.2
SSW
19
Energy kJ
29
5
20
32
9
11
8
5
13
19
32
27
25
23
33
33
20
33
17
15
37
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
12
0.2
S
16
0.3
N
12
0.3
NNW
11
0.2
N
13
0.1
SW
15
0.1
SW
15
0.2
N
9
0.2
ENE
8
0.3
N
8
0.3
N
8
0.2
SSW
16
0.2
SSW
16
0.2
SSW
14
0.1
NW
11
0.1
NW
11
0.2
SSW
17
0.2
SSW
16
0.2
SSW
14
0.2
SSW
14
0.2
SSW
13
Energy kJ
6
20
28
23
12
9
8
6
6
13
12
25
25
18
5
5
28
25
20
19
17
Wind waves
Height (m)
Direction
Period (s)
0.8
NNE
5
Energy kJ
30
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
2
1
2
2
1
1
Distance (km)
38
29
94
46
38
97
38
94
88
29
29
88
88
29
84
28
39
92
41
42
88
Best forecast wave conditions in Big Island
Rating
(10 max)
1
1
1
2
1
2
1
2
1
1
2
2
2
2
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
3
2
1
2
1
2
4
3
2
3
3
2
2
2
2
4
3
2
5
4
Header Global
Rating
(10 max)
8
9
8
9
4
8
5
4
5
5
5
5
4
4
5
4
4
4
4
5
4
  • 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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