Sixtynine surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 pm Thursday 14 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
25.7° 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 19s and forecast to arrive on Monday (May 18) at 2PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (May 20) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Mon 18th May)1ft (0.3m) 19s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 6mm), mostly falling on Thu night. Warm (max 28°C on Sat morning, min 23°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

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

Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thu
21
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
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)
0.4
NW
14
0.3
NW
13
0.3
SW
16
0.3
NW
12
0.3
SW
15
0.3
SW
14
0.6
NE
8
0.3
SW
14
0.3
SW
14
0.3
SW
14
0.7
NE
7
0.8
NE
6
0.7
NE
6
0.7
NE
5
0.9
NE
6
0.1
SW
16
0.1
SW
16
0.1
N
11
0.1
N
11
0.1
SW
14
0.1
SW
12
Wave Graph
Metric surfscale
Energy kJ
52
27
40
23
33
33
0
33
32
29
0
0
0
0
0
10
10
2
2
8
6
Wind (km/h)
5
NE
10
WNW
10
NW
0
NW
10
WNW
10
W
5
ENE
10
WNW
5
WNW
5
N
5
NW
5
NW
10
NE
10
N
20
NE
15
NE
15
NNE
20
NE
15
NE
15
NNE
20
NE
glassy
on
on
glassy
on
cross-on
glassy
on
on
glassy
cross-on
glassy
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
High Tide
2:27AM0.35m
3:32PM0.83m
3:14AM0.30m
4:17PM0.87m
4:04AM0.25m
5:03PM0.88m
4:56AM0.21m
5:53PM0.86m
5:55AM0.19m
6:45PM0.82m
7:04AM0.19m
7:40PM0.76m
8:29AM0.21m
Low Tide
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
1:26AM0.02m
11:03AM-0.04m
2:26AM0.03m
11:55AM0.01m
3:24AM0.03m
12:58PM0.09m
rain showers
part cloud
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
rain showers
clear
clear
thunderstorm
thunderstorm
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:46
5:46
5:46
5:45
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:52
6:52
6:52
6:52
6:52
6:53
6:53
1
1
2
1
1
1
1
Temp °C
24
26
27
25
28
27
25
27
27
26
27
27
25
27
26
24
27
27
25
27
27
28
28
28
28
30
28
28
30
30
30
30
30
29
29
27
24
27
27
26
27
27
Swell 1
Height (m)
Direction
Period (s)
0.8
NE
7
0.6
NE
7
0.8
NE
7
0.5
NE
7
0.7
NE
8
0.7
NE
8
0.6
NE
8
0.6
NE
8
0.7
NE
8
0.6
NE
8
0.7
NE
7
0.8
NE
6
0.7
NE
6
0.7
NE
5
0.9
NE
6
0.4
NE
8
0.6
NE
7
1.1
NE
6
0.2
SSW
13
0.5
NE
8
0.5
NE
8
Energy kJ
59
39
60
25
64
59
39
40
64
51
44
45
32
29
46
15
33
94
17
32
30
Swell 2
Height (m)
Direction
Period (s)
0.4
NW
14
0.3
NW
13
0.3
NW
12
0.5
NE
5
0.3
SW
15
0.3
SW
14
0.2
SSW
14
0.3
SW
14
0.3
SW
14
0.3
SW
14
0.2
SSW
19
0.2
ENE
8
0.2
SSW
16
0.2
ENE
8
0.2
SSW
14
0.3
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
16
0.2
S
16
0.2
S
15
Energy kJ
52
27
25
11
33
33
20
33
32
29
37
6
25
6
21
41
20
18
26
20
18
Swell 3
Height (m)
Direction
Period (s)
0.3
N
8
0.2
SSW
16
0.3
SW
16
0.3
NW
12
0.1
NW
11
0.1
NW
11
0.2
SSW
17
0.2
SSW
16
0.2
SSW
21
0.1
S
14
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.2
SSW
14
0.2
S
17
0.1
SW
16
0.1
SW
16
0.1
N
11
0.1
N
11
0.1
SW
14
0.1
SW
12
Energy kJ
13
25
40
23
5
5
28
24
45
4
17
17
18
19
24
10
10
2
2
8
6
Wind waves
Height (m)
Direction
Period (s)
0.7
NE
5
0.6
NNE
5
1
NE
8
0.8
NNE
6
0.8
NNE
6
Energy kJ
29
15
122
41
46
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
2
2
1
3
1
1
3
1
2
2
2
2
2
1
1
1
1
Distance (km)
3
84
88
57
92
31
42
92
5
38
92
88
42
94
38
38
88
29
38
94
29
Best forecast wave conditions in Big Island
Rating
(10 max)
2
2
1
2
4
2
2
2
1
2
2
2
2
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
3
3
2
4
4
2
7
2
4
4
3
4
3
3
5
3
1
3
2
3
Header Global
Rating
(10 max)
6
5
5
4
5
5
8
5
4
5
4
4
5
4
4
4
4
4
4
4
9
  • 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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