Sixtynine surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 pm Sunday 17 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
26.1° C
(Which is 1.0°C warmer than normal for this time of year)

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 cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 8s period and expected on Thursday (May 21) at 11PM.

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 7mm), mostly falling on Sun night. Warm (max 27°C on Mon morning, min 24°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Thu morning, min 22°C on Fri night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sun
24
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)
0.3
SW
14
0.7
NE
6
0.9
NE
6
0.4
ENE
7
0.6
NE
5
0.7
NE
6
0.5
NE
8
0.2
NNW
12
0.2
NNW
12
0.9
NE
6
0.1
N
11
0.1
SW
14
0.1
N
10
0.1
N
11
0.1
N
10
0.1
NW
11
1.1
NE
9
0.1
NW
11
0.1
NW
15
0.1
NW
13
0.9
NE
9
Wave Graph
Metric surfscale
Energy kJ
30
0
0
0
0
0
0
14
14
0
2
8
2
2
2
5
0
4
8
7
0
Wind (km/h)
10
NE
5
N
5
NNE
5
ENE
5
NW
10
NNE
5
NE
15
NNE
20
NE
15
NE
20
NE
25
NE
20
NE
25
NE
30
NE
15
ENE
20
NNE
15
NE
10
NE
15
NNE
10
NE
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
High Tide
4:56AM0.21m
5:53PM0.86m
5:55AM0.19m
6:45PM0.82m
7:04AM0.19m
7:40PM0.76m
8:29AM0.21m
8:36PM0.69m
10:01AM0.26m
9:31PM0.62m
11:21AM0.34m
10:25PM0.55m
12:21PM0.44m
Low Tide
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
4:17AM0.03m
2:19PM0.16m
5:00AM0.02m
3:58PM0.22m
5:37AM0.02m
5:36PM0.24m
rain showers
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:46
5:46
5:45
5:45
5:45
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
6:53
6:53
6:54
6:54
6:54
2
2
1
2
Temp °C
26
27
27
25
27
27
25
27
26
25
26
26
24
25
26
24
26
25
23
25
26
30
30
29
28
30
29
26
27
27
25
25
25
23
22
23
23
25
24
22
24
27
Swell 1
Height (m)
Direction
Period (s)
0.9
NE
7
0.7
NE
6
0.9
NE
6
0.5
NNE
5
0.6
NE
5
0.7
NE
6
0.6
NNE
5
0.9
NE
7
0.2
SSW
13
0.4
ENE
8
0.2
SSW
13
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.2
S
16
1.1
NE
9
1.1
NE
9
1.2
NE
9
0.2
S
14
0.9
NE
9
Energy kJ
86
33
54
15
23
34
17
86
18
28
16
22
21
20
19
21
178
193
231
15
110
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
14
0.4
NE
7
0.2
ENE
8
0.4
ENE
7
0.4
NE
7
0.4
NE
7
0.5
NE
8
0.2
SSW
14
0.2
NNW
12
0.2
SSW
16
0.1
S
16
0.1
SW
14
0.1
S
12
0.1
S
18
0.1
S
18
0.2
SSW
13
0.2
S
16
0.2
SSW
15
0.2
SSW
14
0.1
NW
13
0.7
NNE
5
Energy kJ
30
19
6
21
12
14
31
20
14
26
5
8
3
6
6
17
20
23
21
7
26
Swell 3
Height (m)
Direction
Period (s)
0.1
S
14
0.2
SSW
19
0.2
SSW
13
0.2
SSW
13
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
NNW
12
0.1
SW
16
0.2
SSW
13
0.1
N
11
0.1
N
10
0.1
N
10
0.1
N
11
0.1
N
10
0.1
NW
11
0.2
SSW
13
0.1
NW
11
0.1
NW
15
0.2
S
13
Energy kJ
4
37
17
17
19
20
21
14
10
17
2
2
2
2
2
5
17
4
8
14
Wind waves
Height (m)
Direction
Period (s)
1.1
NE
8
0.9
NE
6
1.1
NE
8
1.2
NE
8
1.3
NE
8
1.3
NE
8
1.1
NE
8
1.2
NNE
9
1.2
NE
9
Energy kJ
167
51
151
192
211
211
158
207
231
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
1
2
1
1
2
1
1
2
1
1
1
1
1
1
Distance (km)
41
94
46
84
94
38
42
97
38
38
29
38
29
38
41
29
105
105
29
29
29
Best forecast wave conditions in Big Island
Rating
(10 max)
2
2
2
2
2
2
2
1
2
1
2
2
2
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
5
3
4
3
3
2
4
1
3
3
3
2
3
2
2
2
3
1
3
2
4
Header Global
Rating
(10 max)
5
4
4
4
4
4
5
5
5
5
4
4
5
5
5
5
7
5
5
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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