Avalanche surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Saturday 30 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Avalanche surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Avalanche sea temperature is
25.1° C
(Which is normal for this time of year)

How big are the waves at Avalanche today (30 May):

  • Morning surf: Morning surf (30 May, local time) - 3ft (0.9m), 8s period with NE swell.
  • Afternoon surf: Afternoon surf (30 May, local time) - 2.5ft (0.7m), 10s period with NNW swell.
  • Evening surf: Evening surf (30 May, local time) - 2.5ft (0.7m), 10s period with NNW swell.

The current surf forecast for Avalanche at 9AM is: 0.9m 8s primary swell from a Northeast direction (forecast issued at 01:00am May 30). An open ocean swell of 1.0m 17s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (30 May)3ft (0.9m)8s
Afternoon (30 May)2.5ft (0.7m)10s
Evening (30 May)2.5ft (0.7m)10s

Table - waves today at Avalanche. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 25°C on Sat morning, min 22°C on Sun night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
NNW
11
0.7
NNW
11
0.9
NE
8
0.7
NNW
10
0.7
NNW
10
0.7
NNW
10
0.7
NNW
10
0.7
N
10
0.9
N
9
0.9
N
9
0.5
NNW
9
0.6
NNE
8
0.7
NNE
8
0.5
N
8
0.5
N
11
0.6
N
11
0.6
N
10
0.7
N
10
0.7
N
10
0.6
NNW
10
0.9
NNE
10
0.6
N
9
0.9
SSW
18
1
S
17
Wave Graph
Metric surfscale
Energy kJ
101
99
92
86
100
100
100
92
133
127
50
48
51
30
59
83
75
94
94
75
157
64
0
0
Wind (km/h)
15
E
15
ENE
15
E
15
ENE
15
ENE
10
ENE
15
E
10
E
10
E
10
E
10
E
10
ENE
5
ENE
10
ENE
15
ENE
15
ENE
15
ENE
15
ENE
15
ENE
10
NE
20
NE
20
ENE
20
ENE
20
ENE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
1:48AM0.14m
3:01PM0.52m
2:27AM0.12m
3:34PM0.52m
3:06AM0.12m
4:09PM0.51m
Low Tide
6:17AM-0.04m
9:27PM0.06m
6:47AM-0.03m
10:06PM0.05m
7:19AM-0.03m
10:47PM0.05m
clear
clear
part cloud
clear
part cloud
rain showers
part cloud
part cloud
part cloud
rain showers
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:09
7:10
1
1
Temp °C
23
22
23
25
25
24
24
23
23
23
23
25
25
25
24
23
23
22
23
25
25
25
23
23
23
22
23
25
25
25
24
24
25
25
24
27
27
27
25
24
24
23
24
26
25
24
23
23
Swell 1
Height (m)
Direction
Period (s)
1
S
18
1
S
18
1
S
17
1
S
17
0.9
SSW
17
0.9
S
16
0.9
SSW
16
0.9
SSW
16
0.9
N
9
0.9
SSW
16
0.9
SSW
15
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
N
10
0.8
S
18
0.9
SSW
18
1
S
18
0.9
SSW
18
1
S
17
Energy kJ
627
613
617
596
459
427
432
421
133
406
395
300
288
284
276
276
276
273
94
408
528
632
510
596
Swell 2
Height (m)
Direction
Period (s)
0.8
NE
7
0.9
NE
8
0.9
NE
8
0.8
NE
8
0.8
NE
8
0.7
NNW
10
0.7
NNW
10
0.7
N
10
0.9
SSW
16
0.9
N
9
0.5
NNW
9
0.6
NNE
8
0.7
NNE
8
0.5
N
8
0.5
N
11
0.6
N
11
0.7
S
19
0.7
N
10
0.7
S
19
0.7
S
14
0.7
S
14
0.6
N
9
0.6
S
13
0.6
S
13
Energy kJ
54
91
91
77
77
100
100
92
416
127
50
40
51
30
59
83
365
94
347
195
181
64
125
125
Swell 3
Height (m)
Direction
Period (s)
0.7
NNW
11
0.7
NNW
11
0.7
NNW
10
0.7
NNW
10
0.7
NNW
10
0.6
NE
7
0.6
ENE
7
0.6
NE
8
0.4
S
11
0.4
S
11
0.5
N
8
0.5
NNW
9
0.5
NNW
9
0.4
NNW
9
0.5
N
8
0.6
S
19
0.6
N
10
0.7
S
19
0.7
S
14
0.6
NNW
10
0.3
S
10
0.6
S
13
0.6
S
21
0.6
S
21
Energy kJ
101
99
92
86
100
42
37
37
39
37
34
48
47
28
29
273
75
361
200
75
17
126
329
332
Wind waves
Height (m)
Direction
Period (s)
0.9
E
7
0.5
N
8
0.5
NE
7
0.9
NNE
10
0.7
NE
4
0.7
NE
4
0.7
NE
4
Energy kJ
81
29
25
157
13
14
16
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
4
Distance (km)
6
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
14
14
17
Best forecast wave conditions in Oahu
Rating
(10 max)
1
1
1
1
1
2
1
1
2
2
2
2
2
2
2
3
3
3
1
1
1
1
3
4
Best forecast wave conditions in United States
Rating
(10 max)
3
3
1
1
2
2
3
4
4
4
2
2
2
2
5
4
3
4
3
2
2
2
4
4
Header Global
Rating
(10 max)
5
6
8
7
7
7
7
7
6
5
5
5
5
5
5
5
4
5
5
5
5
5
4
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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